Duplex stainless steel castings, sorted by standard.
Duplex Stainless steel has two phase microstructure consisting of grains of Ferritic and Austenitic stainless steel. It has a better strength and corrosion resistance property than stainless steel 304/316. Duplex stainless steels have lower nickel and molybdenum contents than their austenitic counterparts of similar corrosion resistance.
|
Stainless Steel Grade
|
Chemistry Content (%)
|
||||||||||
|
C
|
Mn
|
Si
|
P
|
S
|
Ni
|
Cr
|
Mo
|
N
|
Cu
|
Others
|
|
|
1A (CD4MCu)
|
0.04
|
1.00
|
1.00
|
0.04
|
0.04
|
4.75~6.0
|
24.5~26.5
|
1.75~2.25
|
2.75~3.25
|
—
|
|
|
1B (CD4MCuN)
|
0.04
|
1.00
|
1.00
|
0.04
|
0.04
|
4.7~6.0
|
24.5~26.5
|
1.70~2.30
|
0.1~0.25
|
2.7~3.3
|
—
|
|
1C (CD3MCuN)
|
0.03
|
1.20
|
1.10
|
0.03
|
0.03
|
5.6~6.7
|
24.0~26.7
|
2.90~3.80
|
0.22~0.33
|
1.4~1.9
|
—
|
|
ANC-21
|
0.05
|
0.75
|
0.75
|
0.05
|
0.05
|
4.75~6.0
|
25.0~27.0
|
1.75~2.25
|
≤0.10
|
2.75~3.25
|
—
|
|
2A(CE8MN) |
0.08 |
1.00 |
1.50 |
0.04 |
0.04 |
8.0~11.0 |
22.5~25.5 |
3.0~4.5 |
0.1~0.30 |
— |
— |
|
3A(CD6MN) |
0.06 |
1.00 |
1.00 |
0.04 |
0.04 |
4.0~6.0 |
24.0~27.0 |
1.75~2.5 |
0.15~0.25 |
— |
— |
|
4A (CD3MN) |
0.03 |
1.50 |
1.00 |
0.04 |
0.02 |
4.5~6.5 |
21.0~23.5 |
2.5~3.5 |
0.1~0.30 |
≤1.00 |
— |
|
1.4470 |
0.03 |
2.00 |
1.00 |
0.035 |
0.025 |
4.5~6.5 |
21.0~23.0 |
2.5~3.5 |
0.12~0.20 |
— |
— |
|
5A (CE3MN) |
0.03 |
1.50 |
1.00 |
0.04 |
0.04 |
6.0~8.0 |
24.0~26.0 |
4.0~5.0 |
0.1~0.30 |
— |
— |
|
1.4469 |
0.03 |
1.00 |
1.00 |
0.035 |
0.025 |
6.0~8.0 |
25.0~27.0 |
3.0~5.0 |
0.12~0.22 |
≤1.3 |
— |
|
1.4468 |
0.03 |
2.00 |
1.00 |
0.035 |
0.025 |
5.5~7.0 |
24.5~26.5 |
2.5~3.5 |
0.12~0.25 |
— |
— |
|
6A (CD3MWCuN)
|
0.03 |
1.00 |
1.00 |
0.03 |
0.025 |
6.5~8.5 |
24.0~26.0 |
3.0~4.0 |
0.2~0.30 |
0.5~1.0 |
W ：0.5~1.0 |
|
1.4517 |
0.03 |
1.50 |
1.00 |
0.035 |
0.025 |
5.0~7.0 |
24.5~26.5 |
2.5~3.5 |
0.12~0.22 |
2.75~3.5 |
— |
|
1.4417 |
0.03 |
1.50 |
1.00 |
0.03 |
0.020 |
6.0~8.5 |
24.0~26.0 |
3.0~4.0 |
0.15~0.25 |
1.00 |
W：≤1.0 |
|
Stainless Steel Grade
|
Refer to Standard
|
Heat treatment |
Mechanical Property
|
Impact Testing
|
|||
|
σb
|
σ0.2
|
δ5
|
HB
|
||||
|
MPa
|
MPa
|
%
|
|||||
|
1A(CD4MCu)
|
ASTM A890-03
|
Solution Treatment
|
690
|
485
|
16
|
||
|
1B
(CD4MCuN) |
690
|
485
|
16
|
||||
|
1C
(CD3MCuN) |
690
|
450
|
25
|
||||
|
ANC-21
|
700
|
500
|
18
|
||||
|
2A(CE8MN)
|
ASTM A890-03
|
655
|
450
|
25
|
|||
|
3A(CD6MN)
|
655
|
450
|
25
|
||||
|
4A (CD3MN)
|
620
|
415
|
25
|
||||
|
1.4470
|
EN10283-98
|
600
|
420
|
20
|
KV 30(J)
|
||
|
5A
(CE3MN) |
ASTM A890-03
|
690
|
515
|
18
|
|||
|
1.4469
|
EN10283-98
|
650
|
480
|
22
|
KV 50(J)
|
||
|
1.4468
|
650
|
480
|
22
|
KV 50(J)
|
|||
|
6A
(CD3MWCuN) |
ASTM A890-03
|
690
|
450
|
25
|
|||
|
1.4517
|
EN10283-98
|
650
|
480
|
22
|
KV 50(J)
|
||
|
1.4417
|
650
|
480
|
22
|
KV 50(J)
|
|||