1、Chemical Composition(%)

Steel Specification

C≤

Mn≤

Si≤

S≤

P≤

Cr

Ni

Mo

Cu≤

N

S32750(SAF2507)

00Cr25Ni7Mo4N

0.03

1.20

0.80

0.020

0.035

24.0/26.0

6.0/8.0

3.0/5.0

0.50

0.24/0.32

S31803(SAF2205)

00Cr22Ni5Mo3N

0.03

2.00

1.0

0.02

0.030

21.0/23.0

4.5/6.50

2.50/3.50


0.08/0.20

S31500(3RE60)

00Cr18Ni5Mo3Si2

0.03

1.2/2.00

1.4/2.00

0.030

0.030

18.0/19.0

4.25/5.25

2.50/3.00


0.05/0.10

 

2、Mechanical Properties

Items

Heat Treatment System

σb(Mpa)≥

σs(Mpa)≥

σ%≥

Hardness

Steel Specification

Brucellosis

Rockwell

S32750(SAF2507)

00Cr25NiMo4N

1025-1125

Water quenched

800

550

15

310

32

S31803(SAF2205)

00Cr22Ni5Mo3N

1020-1100

Water quenched

620

450

25

290

30.5

S31500(3RE60)

00Cr18Ni5Mo3Si2

980-1040

Water quenched

630

440

30

290

30.5


Duplex stainless steel commonly used indicators of physical and chemical properties