MATERIAL DESCRIPTION

Sverdrup Steel SS LD24 is a low alloyed Lean Duplex stainless steel developed with increased Cr, Mo and N content to achieve a PRE of ≥24. The microstructure consists of a phase balance of approximately 50 % ferrite and 50 % austenite that provides much higher yield strength than AISI 304 and AISI 316. Also, it exhibits good formability and corrosion resistance.

PRE value (%Cr + 3.3%Mo + 16%N) of ≥24

Applications

The main applications are for details with corrosion resistance better than 304L.

UNS S32001 is characterized by:
• Good resistance to stress corrosion cracking.
• Good resistance to general corrosion.
• High mechanical strength.
• High resistance to erosion corrosion and corrosion fatigue.

Heat Treatment
Solution annealing at 1020 – 1100°C followed by water quenching.

Weldability
Very good.

Chemical composition

Weight % C Si Mn S P Cr Ni Mo N
Min. 4,00 19,50 1,50 0,05
Max. 0,030 1,00 6,00 0,015 0,035 21,50 3,00 0,60 0,17

Product Standards: EN 1,4482, UNS S32001, EN 10088-2, EN 10088–4, EN 10028–7, ASTM A240, ASTM A480, ASME SA240

Approvals: Sverdrup Steel MDS SS LD24

Mechanical Properties

Yield strength Rp0.2,
MPa
Tensile strength Rm,
MPa
Elongation
[%]
Hardness
[HB]
Pre Surface
CR (COIL) ≥ 530 700-900 ≥ 25 24 2B
HR (COIL) ≥ 480 660-900 ≥ 30 ≤ 290 24 1D
PLATE ≥ 450 650-850 ≥ 30 ≤ 290 24 1D

Plate stock

MEASUREMENTS KG/PLATE
1,5 x 1500 x 3000 MM 54
1,5 x 1500 x 6000 MM 108
2 x 1500 x 3000 MM 72
2 x 1500 x 6000 MM 144
2,5 x 1500 x 3000 MM 90
2,5 x 1500 x 6000 MM 180
3 x 1500 x 3000 MM 108
3 x 1500 x 6000 MM 216
4 x 1500 x 3000 MM 144
4 x 1500 x 6000 MM 288
5 x 1500 x 3000 MM 180
5 x 1500 x 6000 MM 360
6 x 1500 x 3000 MM 216
6 x 1500 x 6000 MM 432
8 x 1500 x 3000 MM 296,64
8 x 1500 x 6000 MM 593,28
10 x 1500 x 3000 MM 370,80
10 x 1500 x 6000 MM 741,60
12 x 1500 x 3000 MM 444,96
12 x 1500 x 6000 MM 889,92
15 x 1500 x 3000 MM 556,20
15 x 1500 x 6000 MM 1112,40
20 x 1500 x 3000 MM 741,60
20 x 1500 x 6000 MM 1483,20
25 x 1500 x 3000 MM 927
25 x 1500 x 6000 MM 1854
30 x 1500 x 3000 MM 1112,40
30 x 1500 x 6000 MM 2224,80

View stock list

Material Weight Calculator

Hardness conversion

PREN Calculator

ksi / MPa converter

Equivalent Standards

  • EN 1.4482
  • UNS S32001
Tags: Coil / Plate