DUPLEX STAINLESS STEEL

Chemistry (% Wt.)

Type

UNS#

C(max)

Cr

Ni

Mo

Fe

N

Other

Lean Grades

2003

S32003

0.030

19.5-22.5

3.0 –4.0

1.5 - 2

Rem

0.14-0.20

-

2101

-

0.030

21.5

1.5

0.03

Rem.

0.22

5Mn

2304

S32304

0.030

21.5-24.5

3.0 – 5.5

-

Rem.

0.05-0.20

0.05-0.6Cu

19D

S32001

0.030

19.5-21.5

1.0 – 3.0

0.60

Rem.

0.05-0.17

4-6Mn

Standard Grades

AISI329

S32900

0.08

23.0-28.0

2.5 – 5.0

1.0 – 2.0

Rem.

-

-

3RE60

S31500

0.030

18.0-19.0

4.25-5.25

2.5-3.0

Rem.

-

-

7Mo

S32900

0.08

23.0-28.0

1,0-2.0

2.5-5.0

Rem.

-

-

2205

S31803

0.030

21.0-23.0

4.5-6.5

2.5-3.5

Rem.

0.08-0.20

-

2205

S32205

0.030

22.0-23.0

4.5-6.5

3.0-3.5

Rem.

0.14-0.02

-

Super Grades

255

S32550

0.04

24.0-27.0

4.5-6.5

2.9-3.9

Rem.

0.10-0.25

1.5-2.5Cu

2507

S32750

0.030

24.0-26.0

6.0-8.0

3.0-3.5

Rem.

0.24-0.32

-

7MoPlus

S32950

0.030

26.0-29.0

3.5-5.2

1.0-2.5

Rem.

0.15-0.35

-

Z-100

S32760

0.030

24.0-26.0

6.0-8.0

3.0-4.0

Rem.

0.2-0.3

1maxW

Mechanical Properties (Flat rolled)

Type

Tensile Strength

Yield Strength

% Elong.

Hardness (max)

Lean Grades

2003

107

738

76

524

41

-

2101

109

750

77

530

30

-

2304

87min

600

58min

400

25

C30

19D

90min

620

65min

450

25

C30

Standard Grades

329/7Mo

90min

620

70min

485

15

C26

3RE60

2205

(S31803/

S32205)

90min

620

65min

450

25

C31

Super Grades

255

110

760

80

550

15

C32

2507

116

795

80

550

15

C34

7MoPlus

105

724

80

550

25

B99

Z-100

109

750

80

550

-

-

Specifications

2003

-

2101

-

2304

ASTM A240; A789; A790

19D

ASTM A240; A480

329/7Mo

ASTM A240; A268; A789; A790

3RE60

ASTM A789; A790

2205

ASTM A182; A240; A276; A479; A789; A790; A815; A923; A928; A988

255

ASTM A240; A988

2507

ASTM A182; A240; A479; A789; A790; A988

7Mo Plus

ASTM A182; A240; A314; A473; A479; A789; A790; A815; A988

Z-100

ASTM A240; A988