Engineering for Permanence
Infrastructure is at a turning point. The focus is shifting from initial construction costs to total lifetime value.
For decades, the standard approach to construction has been to accept material degradation as inevitable, countering it with layers of toxic paint and expensive maintenance schedules. At Sverdrup Steel, we believe the era of “paint and pray” is over.
By selecting advanced materials like Duplex for your projects, you are not just buying steel, you are investing in resilience. Whether for bridges, water treatment, or marine construction, we help you deliver infrastructure with service lives exceeding 120 years, effectively eliminating maintenance needs for over a century.
Explore the sections below to discover how we are redefining durability across five critical sectors that covers everything from the extreme demands of the North Sea to vital inland utilities.
Explore Infrastructure Solutions
Why the Industry is Switching to Duplex
+ Zero Maintenance
Eliminate the need for repainting and complex maintenance operations.
Impact:
No road closures or containment scaffolding required.
+ Superior Life Cycle Cost
Shift the financial calculation from initial procurement to total cost of ownership.
Verdict:
Duplex is the fiscally responsible choice over a 120-year design life.
+ Weight Reduction
High strength allows for thinner sections compared to traditional materials.
Result:
Reduces the overall weight of the structure and lowers foundation requirements.
+ Structural Resilience
Superior fatigue resistance and high energy absorption.
Safety:
Ensures integrity under dynamic loads and extreme weather events.
+ Sustainability
Avoid the release of microplastics from coating systems.
Environment:
Utilizes a material that is 100% recyclable.
Offshore Bridges & Walkways
The Ultimate Testing Ground for Structural Materials
The marine environment is arguably the most aggressive testing ground for materials. Structures here face a relentless combination of humidity, airborne chlorides, and wave impact. The traditional method of painted carbon steel creates a perpetual maintenance loop that is both expensive and dangerous.
By switching to Duplex for bridges, walkways, and escape tunnels, operators can cut structural weight by over 30%. More importantly, this eliminates the need for hazardous maintenance campaigns in the splash zone, significantly improving both personnel safety and operational uptime.
The Safety Upgrade
Beyond weight, this is a safety upgrade. Duplex structures offer superior energy absorption during explosion events and resist Corrosion Under Insulation (CUI) in fire walls, effectively removing personnel from harm’s way by eliminating the need for hazardous paint repairs over open water.
+ Case Story: Mongstad Refinery
When replacing bridges at the Mongstad facility, the project team flagged the immense lifecycle costs of painted carbon steel. They chose to challenge traditional thinking by focusing on OPEX savings.
Material: Lean Duplex (EN 1.4362 / UNS S32304).
Result: A maintenance-free structure with no coating system required, installed with a natural finish, significantly reducing the CO2 footprint.
Onshore & Coastal Bridges
Bringing Offshore Resilience to the Shore
Bridges located near the coast are subject to environmental stressors identical to those found on offshore rigs. Wind-driven marine aerosols carry chlorides kilometers inland, creating a corrosive atmosphere that aggressively attacks standard carbon steel.
Airborne chlorides penetrate standard coating systems through microscopic imperfections, initiating unseen pitting and crevice corrosion beneath the surface. By applying marine-grade specifications to onshore infrastructure, we enable the construction of assets with service lives exceeding 100 years, eliminating the need for disruptive maintenance closures and ensuring structural integrity for generations.
The Self-Healing Advantage
Unlike carbon steel, Duplex alloys possess an intrinsic “self-healing” passive layer that regenerates if damaged, ensuring permanent infrastructure without the logistical nightmare of road closures for repainting.
+ Case Story: The MUNCH Museum, Oslo
The new main entry to the MUNCH museum in Oslo, the pedestrian bridge, is a landmark designed to last for generations.
Application: A wide pedestrian bridge serving as the main entry.
Material: Over 10 tonnes of High Strength Standard Duplex (1.4462 / UNS S31803).
Outcome: A robust, corrosion-resistant link that handles the harsh Nordic climate without the need for protective coatings.
Inland & Railway Bridges
The End of the “Painted Bridge”
Even inland, infrastructure faces a silent, corrosive threat that rivals the coast. The heavy application of de-icing salts during winter creates a localized chemical environment on roadways known as a “micro-marine” setting. Traffic spray lifts this brine into structural joints and crevices, where chlorides accumulate year after year, compromising the integrity of painted carbon steel girders.
For bridges spanning electrified railway lines, maintenance is a logistical nightmare. Gaining access to the underside of a bridge requires shutting down high-voltage catenary lines and halting train traffic. These “track possessions” come with exorbitant costs and strict time windows.
Design Innovation
We are seeing a shift toward tubular upper flanges and corrugated webs using stainless steel.
Benefit: Circular profiles offer the lowest surface area for chloride accumulation.
Reliability: Unlike carbon steel tubes which corrode unseen from the inside, stainless provides complete protection, offering a true “fit and forget” solution.
Water & Wastewater Management
Durability for Critical Utilities
Clean water delivery and effective waste management are the silent backbone of modern society, yet these facilities operate in some of the most chemically aggressive environments imaginable. Infrastructure here faces a multi-front attack: high humidity, abrasion from sludge, and the presence of Hydrogen Sulfide (H2S), which leads to severe Microbiologically Influenced Corrosion (MIC).
Standard carbon steel and concrete solutions frequently degrade rapidly under these conditions, trapping operators in a costly cycle of repairs and patch-jobs. In this sector, a material failure is not just a maintenance issue, it represents a critical risk of leaks, environmental contamination, and unscheduled plant shutdowns.
The Sverdrup Solution
Sverdrup Steel supplies Lean and Standard Duplex grades for sluice gates, piping systems, and storage tanks.
Cost-Efficiency: Lean Duplex (LDX 2101 / EDX 2304) effectively replaces 316L or coated carbon steel, offering double the strength and superior resistance to abrasion and corrosion at a stable price point.
Hygiene: The smooth, hard surface of Duplex stainless steel prevents bacterial buildup (biofilm) and ensures water purity with minimal chemical cleaning.
Port & Marine Construction
Holding the Line Against the Sea
Ports, harbors, and flood barriers operate permanently in the splash and tidal zones, universally recognized as the most aggressive environments for steel corrosion. Traditional carbon steel sheet piling and tie-rods are under constant attack from oxygenated seawater and the rapid onset of Accelerated Low Water Corrosion (ALWC), which can compromise structural thickness unexpectedly fast.
Beyond the chemical threat, these structures must withstand brutal physical impact from vessels, debris, and tidal forces.
The Application
For critical retaining structures and tie-rods, high-strength Duplex offers a solution that withstands the ocean without degrading.
Resilience: Super Duplex tie-rods provide exceptional resistance to Stress Corrosion Cracking (SCC), essential for components under high tension in warm or brackish water.
Longevity: This is essential for sheet piling and bollards, where replacing corroded steel underwater is notoriously difficult and prohibitively expensive.
Tunnels & Transport Hubs
Fire Safety and Corrosion Resistance
Tunnels represent a uniquely hostile environment for structural materials. They act as containment vessels for a concentrated “corrosive soup” of exhaust fumes (sulfur/NOx) and de-icing salts tracked in by vehicle tires. The “piston effect” of moving traffic forces this chloride-rich mist into every crevice and joint, accelerating corrosion rates significantly compared to open roads.
Simultaneously, safety regulations are non-negotiable. Materials used in tunnels must withstand extreme hydrocarbon fires, retaining structural integrity at temperatures exceeding 1100°C to ensure evacuation routes remain open. Traditional galvanized steel often fails to meet these dual requirements of high-temperature resilience and long-term corrosion resistance.
How to counter the problem
Stainless steel is increasingly specified for tunnel cladding, ventilation systems, and structural supports due to its dual-performance properties.
Safety: Unlike carbon steel, stainless steel retains its structural integrity at significantly higher temperatures, providing critical time for evacuation in the event of a fire.
Low Maintenance: Cladding made from Duplex steel resists the grime and salt spray of daily traffic. It is easily cleaned and does not require repainting, preventing costly tunnel closures.
Material Selection Guide
Part of the Green Solution
Our stainless steel is produced using 85% recycled material and is 100% recyclable an infinite number of times, without losing its key properties such as strength and corrosion resistance. CO2 emissions stemming from the production of stainless steel is far less than that of other comparable materials.
Stainless steel alloys are integrated and crucial for many green technological products to clean emissions to air, in solar panels, in water cleaning systems and in applications that reduce the use of fossil fuels.
Stainless steel is one of the most durable and long-lasting substances in the world and earns the right to be called a green alloy simply based on its longevity. It is also among the most hygienic materials in the world and requires minimal use of cleaning agents to be properly maintained.
If you have any questions regarding your Infrastructure-project, contact our skilled team today.
Our vision is to become the preferred supplier of sustainable stainless steel.
Sustainability in steelBridge to Safety
Why Offshore Structures Are Going Maintenance Free
The era of painting and repainting offshore steel structures is ending. By switching to duplex stainless steel for structures, bridges, walkways, and escape tunnels, operators are cutting structural weight by over 30% and eliminating the most persistent operational headache in the North Sea: corrosion maintenance.
It is a shift that improves safety, reduces carbon footprints, and dramatically lowers lifecycle costs (LCC).
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The Reality of the Offshore Atmosphere
The marine environment is arguably the most aggressive testing ground for structural materials. Structures here do not just face saltwater, they face a relentless combination of high humidity, airborne chlorides, ultraviolet radiation, and physical erosion from waves and wind.
For decades, the standard solution for connecting bridges and escape tunnels was carbon steel protected by thick coating systems. While mechanically sound, this approach has a major flaw: coatings fail. In the “splash zone” and atmospheric zone, where wetting and drying cycles concentrate chlorides, even the smallest scratch in a coating can lead to rapid under-film corrosion.
This creates a perpetual maintenance loop. Crews must constantly inspect, sandblast, and recoat hard-to-reach areas. This isn’t just expensive; it introduces significant health and safety risks. Sending personnel to repair paintwork over open water is a risk that can be engineered out entirely.
Strength Meets Weight Reduction
The engineering case for using duplex stainless steel in these applications goes beyond corrosion resistance. It is largely about weight.
Duplex grades generally possess significantly higher yield strength compared to standard austenitic stainless steels (like 316L) and conventional carbon steels. This high strength-to-weight ratio allows structural engineers to design with thinner wall thicknesses and lighter sections without compromising structural integrity.
For long-span structures like inter-platform bridges or escape tunnels, reducing the self-weight is critical. A lighter bridge exerts less load on the supporting platform modules, potentially reducing the reinforcement needed for the main structure.
Key Advantages with Duplex Stainless Steel
+ High Strength
Allows for slender, elegant designs that use less material.
+Corrosion Resistance
Excellent performance under harsh conditions including high stress corrosion cracking resistance, when the optimal duplex grade have been selected.
+Self-healing
Superior resistance to wear and erosion from sand or ice with a corrosion protection layer that re-creates after being scratched or damaged.
Case Story
A Maintenance-Free Future at Mongstad
A recent project executed by Fabtech highlights exactly how this transition works in practice. In the fall of 2020, Fabtech was commissioned by Equinor to build two new footbridges to replace existing bridges at the Mongstad oil refinery facility in Norway.
The initial brief was to build the large-scale bridges using the same design as the original structures, in painted carbon steel. However, the project team flagged the immense lifecycle costs associated with that choice. The harsh coastal environment meant that a carbon steel bridge would require a strict and costly painting schedule immediately after installation and throughout its life.
Recognizing an opportunity to challenge traditional thinking, the team developed an alternative plan using Sverdrup Steel’s material expertise. The result was a decision to replace the carbon steel design with lean duplex structures.
Specifically, the project utilized lean duplex EN 1.4362/UNS S32304 (in accordance with NORSOK M: 120 – MDS YD37). Sverdrup Steel supplied over 2,000 meters of hollow structural sections, plates, and hot rolled angle bars for the construction.
The decision transformed the outcome of the project
- Weight Savings: The switch allowed for a lighter structure, simplifying lifting and installation logistics.
- Maintenance Elimination: Because the duplex grade is inherently resistant to the atmospheric corrosion of the site, no coating system was required. The bridges were installed with a natural finish.
- Sustainability: By avoiding the manufacturing and application of paints (and future re-coating chemicals), and using a material with high recycled content, the CO2 footprint of the installation was significantly reduced.
This real-world application proves that the initial material cost is often offset by savings in fabrication (no blasting/painting time) and completely eclipsed by the savings in Operational Expenditure (OPEX) over nearly zero maintenance years.
Safety Critical: Escape Ways and Tunnels
Escape ways and tunnels are safety-critical infrastructure. In an emergency, they must maintain structural integrity even when subjected to blast loads or fire.
Duplex stainless steels perform exceptionally well in these high-stakes scenarios. They retain high toughness, which is essential for absorbing energy during an explosion event. Furthermore, for fire and blast walls often integrated into these escape routes, the material’s ability to resist corrosion under insulation (CUI) is a major asset.
When escape tunnels are constructed from carbon steel, the interior humidity and exterior salt spray can cause unseen corrosion, potentially compromising the tunnel’s ability to withstand a blast wave. A maintenance-free duplex tunnel remains as strong in year 20 as it was on day one, providing a verified safe exit route for personnel.
Navigating Corrosion Zones
Atmospheric Zone
Airborne Chlorides & Wind
This is the area above the splash zone, exposed to salt spray and wind. For bridges and walkways here, lean duplex grades, like 2304 with min PRE 28, are often the most cost-effective choice. They outperform 316L and provide sufficient resistance without the cost of higher alloying elements.
Submerged Zone
Permanent Immersion & Biofouling
While bridges are rarely submerged, their support pilings might be. In these areas, cathodic protection is often used, but super duplex offers a reliable alternative for components like risers or intake guards.
Material Selection Guide based on Environment
Splash Zone & Subsea
The Challenge
Extreme chloride concentration, wetting/drying cycles, and physical erosion from wave impact. High risk of pitting and crevice corrosion.
Within 1-5 km of Shore
The Challenge
Constant exposure to airborne salt spray (aerosols), high humidity, and wind. Standard steels degrade rapidly without maintenance.
Roadways & Railways
The Challenge
Exposure to de-icing salts during winter, traffic exhaust (NOx/Sulfur), and general industrial pollution.
The Long-Term Economic View
The shift away from carbon steel in offshore bridges and escape ways is driven by Total Lifecycle Cost (LCC). While a duplex beam may cost more per kilogram than a carbon steel beam, the math changes when you view the whole picture.
Eliminating the initial coating system saves weeks in the fabrication yard. The reduced weight saves money on transportation and crane vessel time. But the real value is unlocked over the 20 to 50-year life of the asset. No scaffolding crews, no repainting contracts, and no downtime for structural repairs mean the asset pays for itself long before it is decommissioned.
As the industry pushes for unmanned platforms and cleaner operations, materials that you can “install and forget” are no longer a luxury; they are a standard requirement.
Featured grades in this article
- Trade nameUNS gradeEN grade
Your global supplier of high performance stainless steel.
Contact usBringing Offshore Resilience to the Shore
The Engineering Case for Duplex Bridges
By applying marine grade specifications to coast near infrastructure, engineers are now delivering bridge designs with service lives exceeding one hundred years. The strategic application of high strength duplex stainless steel enables the construction of static onshore assets that rival the durability of deep-sea platforms, effectively eliminating the operational costs associated with corrosion management and structural repair.
The distinction between offshore and onshore engineering requirements is rapidly blurring. For decades, the oil and gas sector has engineered solutions to withstand the most aggressive saline environments on earth. Today, that same technical philosophy is reshaping how we approach coastal and urban bridge construction. The objective is clear: replace the sixty-year design life typical of the post war era with permanent infrastructure that requires zero maintenance intervention.
Surviving the C5 Marine Atmosphere
The “Paint and Pray” Flaw
In traditional carbon steel designs, fighting nature requires a rigorous schedule of grit blasting and repainting, a process that is logistically difficult, financially draining, and environmentally toxic.
Bridges located near the coast or in regions with heavy de-icing salt use are subject to environmental stressors identical to those found on offshore rigs. Airborne chlorides penetrate standard coating systems, initiating pitting and crevice corrosion that compromise structural integrity. In traditional carbon steel designs, this necessitates a rigorous schedule of grit blasting and repainting, a process that is logistically difficult and financially draining.
The adoption of duplex stainless steel, specifically grade 1.4462 / UNS S31803, resolves this fundamental vulnerability. Unlike carbon steel which relies on an external barrier, duplex alloys possess an intrinsic defence mechanism. The chemical composition, rich in chromium, molybdenum, and nitrogen, forms a passive surface layer that spontaneously regenerates if damaged. This self-healing capability ensures that the steel remains impervious to chloride attack even in high humidity, salt laden atmospheres where standard structural steels would fail.
Engineering the Solution
+ The “Self-Healing” Passive Layer
+ Structural Efficiency (Yield Strength)
+ Fatigue & Dynamic Loading
Structural Efficiency and Weight Reduction
Offshore engineering prioritizes high strength to weight ratios to minimize platform mass. This principle is directly transferable to bridge design. Duplex stainless steel offers a yield strength significantly higher than standard austenitic grades and structural carbon steel.
By utilizing materials with yield strengths ranging from 450 to 550 MPa, designers can specify thinner material sections without sacrificing load bearing capacity. This reduction in dead weight allows for slimmer aesthetic profiles and reduces the reaction forces on abutments and foundations. Furthermore, the high mechanical strength of duplex serves as a safeguard against fatigue. Bridges are dynamic structures subject to constant cyclic loading from traffic and wind; the superior fatigue resistance of duplex steel ensures reliability well beyond the century mark, even under increased traffic volumes.
Case Story
The MUNCH Pedestrian Link
The application of these offshore standards is exemplified by the infrastructure surrounding the new MUNCH museum in Oslo, Norway. Completed in 2020, the museum district was designed to be a permanent cultural landmark. A critical component of this site is the wide pedestrian bridge providing access to the museum.
Engineers specified more than 10 tonnes of high strength 1.4462 / DUPLEX UNS S31803 for this structure.
The choice was driven by the need for a sustainable, maintenance free foundation capable of enduring the harsh Nordic climate. To achieve the complex geometries required, the duplex plates were processed using precision waterjet cutting.
This method ensures that the material properties remain unaltered by thermal stress during fabrication. The result is a robust, corrosion resistant link that will serve generations of visitors without the need for protective coatings or structural rehabilitation.
Oslo, Norway
The infrastructure surrounding the new MUNCH museum in Oslo exemplifies the shift to permanent materials. Engineers specified Duplex for the critical pedestrian bridge to create a maintenance-free foundation in the harsh Nordic climate.
Economic and Environmental Sustainability
The shift to maintenance free materials fundamentally alters the Life Cycle Cost (LCC) calculation. While the initial procurement cost of duplex stainless steel is higher than carbon steel, the elimination of recurring maintenance costs results in a significantly lower total cost of ownership. There is no need for road closures for repainting, no cost for containment scaffolding, and no recurring labour expenses.
From an environmental perspective, this approach prevents the release of microplastics, and chemical residues associated with failing paint systems and abrasive blasting. Moreover, stainless steel is 100% recyclable at the end of its life, contributing to a circular economy. By building with permanence in mind, we reduce the carbon footprint associated with the demolition and replacement of premature infrastructure failures.
Comparative Material Data
The table below illustrates the performance differential between traditional bridge steel and the duplex alternative.
| Feature | Painted Carbon Steel | Duplex Stainless Steel |
|---|---|---|
| Corrosion Mechanism | Barrier dependent (Paint) | Intrinsic passivation |
| Design Life | 50 to 60 years | 100+ years |
| Maintenance | High (Repainting every 15-25 yrs) | None |
| Recyclability | High (requires coating removal) | 100% (direct remelt) |
A New Standard for Infrastructure
The integration of offshore technology into onshore bridge design represents a maturation of civil engineering. It moves the industry away from a culture of disposable assets toward a legacy of permanence. By selecting materials like duplex stainless steel, we ensure that our critical transport links remain safe, functional, and beautiful for over a century, regardless of the aggressive environments they inhabit.
Our vision is to become the preferred supplier of sustainable stainless steel.
Sustainability in steelThe 120 Year Verdict signals the end of the Painted Bridge
The 120 Year Verdict signals the end of the Painted Bridge
The financial argument for painted carbon steel in infrastructure is collapsing.
When engineers analyse the total cost of ownership over a 120-year design life, the data proves that maintenance is the single largest liability. Duplex stainless steel structural designs have emerged not merely as a premium option but as the fiscally responsible standard for critical infrastructure.
The era of the “paint and pray” approach to bridge engineering is becoming obsolete. For decades, the industry standard has been to accept material degradation as inevitable, countering it with layers of toxic paint and scheduled repairs. But as modern infrastructure projects increasingly specify design lives of over a century, the maintenance burden of traditional materials has shifted from a nuisance to a financial and logistical impossibility.
By eliminating the need for repainting and surface treatment, we can deliver bridges that cost significantly less to own while offering superior mechanical performance. The verdict is in, and it favours the material that lasts.
Escaping the Maintenance Trap
The true cost of a bridge is rarely found on the initial invoice. It accumulates silently over decades in the form of access equipment, labour, and disruption. This is particularly acute in locations where maintenance is dangerous or virtually impossible. Bridges spanning electrified railway lines, for example, present a massive challenge. Gaining access to these structures often requires shutting down power and disrupting rail networks, incurring massive costs and safety risks.
The true cost of a bridge is rarely found on the initial invoice. It accumulates silently over decades in the form of access equipment, labour, and disruption. This is particularly acute in locations where maintenance is dangerous or virtually impossible. Bridges spanning electrified railway lines, for example, present a massive challenge. Gaining access to these structures often requires shutting down power and disrupting rail networks, incurring massive costs and safety risks.
We see this played out in projects like the Söderström Bridge, where the decision to use duplex stainless steel beams allows the structure to handle heavy urban traffic without requiring painting crews to ever suspend operations on the rail lines below.
Similarly, in marine environments where airborne chlorides attack carbon steel relentlessly, the maintenance cycle becomes a losing battle. The Cala Galdana Bridge stands as a testament to the alternative: a structure capable of withstanding the high salinity of a Mediterranean island environment without the constant stripping and recoating required by traditional materials.
Redefining Structural Geometry
Switching to duplex is not simply about changing the chemical composition of the steel, it requires a rethink of the structural geometry to fully capture the material’s benefits. In composite bridge designs, where a concrete deck sits atop steel girders, stiffness often governs the design rather than pure strength. To optimise for duplex, engineers are moving away from standard I-beams that rely on mass for stability.
Instead, we are seeing the adoption of corrugated webs and tubular upper flanges. These geometric innovations increase stability and torsional stiffness without adding excessive mass, effectively neutralizing the higher unit cost of the material.
For pure steel structures, tubular sections are chemically and mechanically superior. A circular profile offers the lowest possible surface area for wind loading and chloride accumulation. Unlike carbon steel tubes, which can corrode unseen from the inside, stainless tubes provide complete protection on both faces, offering a true “fit and forget” solution for complex architectural forms.
Mechanical Mastery and Weight Reduction
Beyond corrosion resistance, the mechanical profile of duplex grades allows for smarter, lighter infrastructure. With significantly higher yield strength than standard S355 carbon steel, engineers can design with thinner sections, reducing the overall weight of the bridge. In composite designs, this weight reduction cascades down to the foundations, allowing for smaller piers and reduced piling requirements.
This strength does not come at the expense of durability. Bridges are dynamic structures subject to millions of load cycles, and duplex stainless steel exhibits excellent fatigue strength, making it ideal for busy highway overpasses. Furthermore, it retains high ductility even at sub-zero temperatures, ensuring structural integrity in harsh northern climates where brittle fracture is a risk for other materials.
The most recent example, of excellent engineering masterclass work in lean duplex stainless steel, is the Ava Bridge & Lift system that revolutionises the way bridges are commissioned, designed, installed and experienced.
Real-World Applications
Urban Rail Challenge
The decision to use duplex stainless steel beams allows the structure to handle heavy urban traffic without requiring painting crews to ever suspend operations on the rail lines below.
Mediterranean Island
Stands as a testament to the alternative: a structure capable of withstanding the high salinity of a Mediterranean island environment without the constant stripping and recoating required by traditional materials.
Engineering Masterclass
The most recent example, of excellent engineering masterclass work in lean duplex stainless steel.
The Economic Reality
When we look beyond the construction phase, the value proposition shifts dramatically. The following data highlights the contrast in value over the lifespan of the asset.
| Cost Component | Painted Carbon Steel | Duplex Stainless Steel |
|---|---|---|
| Material Cost | Low | Moderate |
| Initial Coating | High | None |
| Maintenance Cycles | Major repairs every 20-25 years | None required |
| Traffic Disruption | Severe economic impact during repair | Zero disruption |
| End of Life Value | Negative (Disposal costs) | Positive (High scrap value) |
| Total 120 Year Cost | Very High | Low |
A Legacy of Permanence
The choice facing modern engineers is no longer between a cheap bridge and an expensive one. It is a choice between a bridge that becomes a liability and a bridge that remains an asset. By leveraging the mechanical strength and chemical stability of duplex stainless steel, we are building infrastructure that respects both the economic realities of the future and the environments they inhabit. We are stopping the cycle of repair and starting a legacy of permanence.
Highlighted products in this article
- Trade nameUNS gradeEN grade