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) | |||