Cast stainless steels
Cast stainless steels are stainless-steel materials produced by casting, combining corrosion resistance with the ability to form complex component shapes. Their composition and mechanical behaviour vary by grade, and they are used for corrosion-resistant cast components such as pumps, valves and process equipment.
| Grade | Material no. | C | Si | P | S | Cr | Mn |
|---|---|---|---|---|---|---|---|
| GX4CrNiMo 16-5-1 | 1.4405 | ≤0,06 | ≤0,80 | 0,035 | 0,025 | 15,0-17,0 | ≤1,00 |
| GX5CrNiMo13-4 | 1.4407 | ≤0,08 | ≤1,50 | 0,045 | 0,03 | 11,5-13,5 | ≤1,50 |
| 1.4408 | 1.4408 | ≤0,07 | ≤1,50 | 0,04 | 0,03 | 18,0-20,0 | ≤1,50 |
| GX2CrNiMo19-11-2 | 1.4409 | ≤0,03 | ≤1,50 | 0,035 | 0,025 | 18,0-20,0 | ≤2,00 |
| GX4CrNiMo16-5-2 | 1.4411 | ≤0,06 | ≤0,80 | 0,035 | 0,025 | 15,0-17,0 | ≤1,00 |
| GX5CrNiMo19-11-3 | 1.4412 | ≤0,07 | ≤1,50 | 0,04 | 0,03 | 18,0-20,0 | ≤1,50 |
| GX4CrNiMo13-4 | 1.4414 | 0,03-0,07 | 0,30-0,70 | 0,04 | 0,035 | 12,0-13,0 | 0,30-0,70 |
| GX2NiCrMoN25-20-5 | 1.4416 | ≤0,030 | ≤1,00 | 0,035 | 0,02 | 19,0-21,0 | ≤1,00 |
| GX2CrNiMoN25-7-3 | 1.4417 | ≤0,03 | ≤1,00 | 0,03 | 0,02 | 24,0-26,0 | ≤1,50 |
| GX4CrNi16-4 | 1.4421 | ≤0,06 | ≤0,80 | 0,035 | 0,02 | 15,5-17,5 | ≤1,00 |
| GX10CrNiMoN15-4-2 | 1.4426 | 0,08-0,14 | 0,30-0,50 | 0,04 | 0,03 | 14,5-15,5 | 0,50-1,00 |
| GX6CrNiMo18-12 | 1.4437 | ≤0,07 | ≤2,00 | 0,045 | 0,03 | 16,5-18,5 | ≤2,00 |
| GX2CrNiMoN17-13-4 | 1.4446 | ≤0,03 | ≤1,00 | 0,04 | 0,03 | 16,5-18,5 | ≤1,50 |
| GX6CrNiMo17-13 | 1.4448 | ≤0,07 | ≤1,00 | 0,045 | 0,03 | 16,0-18,0 | ≤2,00 |
| GX6CrNiMo24-8-2 | 1.4463 | ≤0,07 | ≤1,50 | 0,045 | 0,03 | 23,0-25,0 | ≤1,50 |
| GX40CrNiMo27-5 | 1.4464 | 0,30-0,50 | ≤2,00 | 0,045 | 0,03 | 26,0-28,0 | ≤1,50 |
| GX2CrNiMoN25-6-3 | 1.4468 | ≤0,03 | ≤1,00 | 0,035 | 0,025 | 24,5-26,5 | ≤2,00 |
| GX2CrNiMoN26-7-4 | 1.4469 | ≤0,03 | ≤1,00 | 0,035 | 0,025 | 25,0-27,0 | ≤1,00 |
| GX2CrNiMoN22-5-3 | 1.4470 | ≤0,03 | ≤1,00 | 0,035 | 0,025 | 21,0-23,0 | ≤2,00 |
| GX2CrNiMoN25-25-2 | 1.4473 | ≤0,03 | ≤1,00 | 0,045 | 0,03 | 24,0-26,0 | ≤2,00 |
| GX4CrNiMoN26-5-2 | 1.4474 | ≤0,05 | ≤1,00 | 0,035 | 0,025 | 25,0-27,0 | ≤2,00 |
| GX150CrNiMoCuN41-6-2 | 1.4475 | 1,40-1,70 | ≤1,00 | 0,035 | 0,025 | 39,5-42,0 | ≤1,00 |
| GX7NiCrMoCuNb25-20 | 1.4500 | ≤0,08 | ≤1,50 | 0,045 | 0,03 | 19,0-21,0 | ≤2,00 |
| GX3CrNiMoCuN26-6-3 | 1.4515 | ≤0,03 | ≤1,00 | 0,03 | 0,02 | 24,5-26,5 | ≤2,00 |
| GX2CrNiMoCuN25-6-3-3 | 1.4517 | ≤0,03 | ≤1,00 | 0,035 | 0,025 | 24,5-26,5 | ≤1,50 |
| GX2NiCrMoCuN20-18 | 1.4531 | ≤0,03 | 0,30-0,50 | 0,03 | 0,02 | 17,0-18,5 | 0,30-0,60 |
| GX2NiCrMoCuN25-20 | 1.4536 | ≤0,03 | ≤1,00 | 0,035 | 0,01 | 19,0-21,0 | ≤1,00 |
| GX1NiCrMoCuN25-20-5 | 1.4538 | ≤0,020 | ≤1,00 | 0,035 | 0,01 | 19,0-21,0 | ≤1,00 |
| GX5CrNiNb19-11 | 1.4552 | ≤0,07 | ≤1,50 | 0,04 | 0,03 | 18,0-20,0 | ≤1,50 |
| GX2CrNiMnMoNNb21-15-4-3 | 1.4569 | ≤0,03 | ≤1,00 | 0,025 | 0,01 | 20,0-22,0 | 3,00-6,00 |
| GX3CrNiMoCuN24-6-5 | 1.4573 | ≤0,040 | ≤1,00 | 0,03 | 0,02 | 22,0-25,0 | ≤1,00 |
| 1.4581 | 1.4581 | ≤0,07 | ≤1,50 | 0,04 | 0,03 | 18,0-20,0 | ≤1,50 |
| 1.4583 | 1.4583 | ≤0,10 | ≤1,00 | 0,045 | 0,03 | 16,5-18,5 | ≤2,00 |
| GX7CrNiMoCuNb18-18 | 1.4585 | ≤0,08 | ≤1,50 | 0,045 | 0,03 | 16,5-18,5 | ≤2,00 |
| GX8CrNi19-10 | 1.4815 | ≤0,08 | 0,50-1,50 | 0,045 | 0,03 | 18,0-20,0 | 0,50-1,50 |
| GX6CrNi18-10 | 1.6902 | ≤0,07 | ≤2,00 | 0,035 | 0,015 | 18,0-20,0 | ≤1,50 |
| GX5CrNiNb18-10 | 1.6905 | ≤0,06 | ≤1,50 | 0,045 | 0,03 | 17,5-20,0 | ≤1,50 |
Standards covering this category
20Property ranges
14| Property | Unit | Min | Max | Grades |
|---|---|---|---|---|
| Rm | N/mm² | 390 | 900 | 41 |
| Re | N/mm² | 165 | 830 | 41 |
| A | % | 12 | 33 | 38 |
| A5 | % | 15 | 40 | 6 |
| Z | % | 25 | 55 | 12 |
| aK | J/cm² | 20 | 80 | 16 |
| KCU | kJ/m² | 294 | 1000 | 5 |
| HB | — | 163 | 302 | 22 |
| rho | g/cm³ | 7.7 | 8 | 52 |
| E | GPa | 140 | 222 | 1 |
| alpha | 10^-6/K | 10 | 12.8 | 1 |
| lambda | W/(m·K) | 21 | 28 | 1 |
| cp | J/(kg·K) | 470 | 693 | 1 |
| rho_el | nΩ·m | 645 | 1160 | 1 |
Derived from 52 grades in this category with a recorded value.
Composition range
13| Property | Unit | Min | Max | Grades |
|---|---|---|---|---|
| C | % | 0.02 | 1.7 | 87 |
| N | % | 0.04 | 0.35 | 27 |
| Si | % | 0.3 | 2 | 87 |
| P | % | 0.025 | 0.045 | 87 |
| S | % | 0.01 | 0.04 | 86 |
| V | % | 0.08 | 0.08 | 3 |
| Cr | % | 11.5 | 42 | 87 |
| Mn | % | 0.3 | 6 | 87 |
| Ni | % | 0.5 | 30 | 83 |
| Cu | % | 0.1 | 4 | 28 |
| Nb | % | 0.15 | 1.35 | 5 |
| Mo | % | 0.1 | 6 | 65 |
| W | % | 1 | 1 | 1 |
Derived from 87 grades in this category with a recorded value.
Heat treatment
2| Operation | MinTemperature (°C) | MaxTemperature (°C) | Grades |
|---|---|---|---|
| quenching | 950 | 1100 | 2 |
| annealing | 950 | 950 | 1 |