MATERIAL DESCRIPTION

Super Duplex UNS S32760 is among the most common super duplex grade in the market. UNS S32760 is a duplex stainless steel especially designed for service in aggressive chloride-containing environments and has additions of W and Cu compared to UNS S32750. It has very good resistance to localized corrosion and stress corrosion cracking in combination with high mechanical strength.

Applications

The main applications are for details with special requirements for high corrosion resistance.

UNS S32760 is characterized by:

  • High resistance to stress corrosion cracking in halide containing environments.
  • High resistance to pitting and crevice corrosion.
  • High resistance to general corrosion.
  • High mechanical strength.
  • High resistance to erosion corrosion and corrosion fatigue.

It is widely used in oil & gas, hydropower, pressure vessels, pulp & paper, structural components and chemical tankers.

Heat Treatment
Solution annealing at 1100°C followed by water quenching.

Weldability
Very good.

Chemical composition

Weight % C Si Mn S P Cr Ni Mo N Cu W
Min.  24,00  6,00  3,00  0,20  0,50 0,50
Max.  0,030  1,00  1,00  0,010  0,030  26,00  8,00  4,00  0,30  1,00  1,00

PREN= (Cr%+3.3Mo%+16N%) ≥ 40
Product Standards: EN 10088-3, ASTM A276, ASTM A479, ASTM A182–11A
(Chemical composition and mechanical properties only)
Approvals: NACE MR0175, NORSOK M650, NORSOK M630 MDS D53/ D54/ D55/ D57

Mechanical Properties

Yield strength Rp0.2,
MPa
Tensile strength Rm,
MPa
Elongation
[%]
Hardness
[HB]
Impact, Charpy-V, -46ºC
[J]
Pre
BAR  ≥ 550  ≥ 750  ≥ 25 ≤ 310  ≥ 45  ≥ 40
PLATE CR (COIL)  ≥ 550  750 – 1000  ≥ 25 ≤ 310  ≥ 45  ≥ 40
PLATE HR (COIL)  ≥ 550  750 – 930  ≥ 25 ≤ 310  ≥ 45  ≥ 40
PLATE (QUARTO)  ≥ 550  750 – 930  ≥ 25 ≤ 310  ≥ 45  ≥ 40

Round Bar Stock

DIA KG/M
12,7 mm 1.1
15,87 mm 1.5
19,05 mm 2.3
25,4 mm 4.2
31,75 mm 6.2
38,1 mm 9.2
44,5 mm 12.7
50,8 mm 16.2
60 mm 22.6
70 mm 30.8
76,2 mm 36.6
80 mm 40.2
90 mm 50.9
101,6 mm 64.7
120 mm 90.5
127 mm 104.7
130 mm 106.
DIA KG/M
140 mm 123
152 mm 147
160 mm 162
170 mm 182
180 mm 204
203,2 mm 258
220 mm 304
230 mm 333
240 mm 362
254 mm 402
280 mm 493
300 mm 566
304,8 mm 579
330 mm 686
355,6 mm 797
380 mm 910
406,4 mm 1040

View stock list

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Equivalent Standards

  • EN 1.4501
  • UNS S32760
  • Grade F55
  • (Zeron 100)
Tags: Plate / Round Bar & Bored Bar