International ISO ISO 9329-4, X7CrNiNb18-11 Specialsteel Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 4: Austenitic stainless steels and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Class | Grade | Type | Standard | Country | Application |
|---|---|---|---|---|---|---|
| Steel Grades | Specialsteel | X7CrNiNb18-11 | Austenite | ISO | International | Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 4: Austenitic stainless steels |
| C | Si | Mn | P | S | Cr | Mo | Ni |
|---|---|---|---|---|---|---|---|
| 0.04 -0.10 | ≤1.00 | ≤2.00 | ≤0.040 | ≤0.030 | 17.00 -19.00 | 9.00 -13.00 | ≤ ≥ |
| Yield Rp0.2 (MPa) |
Tensile Rm (MPa) |
Impact KV/Ku (J) |
Elongation A (%) |
Reduction in cross section on fracture Z (%) |
As-Heat-Treated Condition | Brinell hardness (HBW) |
|---|---|---|---|---|---|---|
| 117 (≥) | 337 (≥) | 41 | 34 | 32 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 342 |
| Temperature (°C) |
Modulus of elasticity (GPa) |
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and | Thermal conductivity (W/m·°C) |
Specific thermal capacity (J/kg·°C) |
Specific electrical resistivity (Ω mm²/m) |
Density (kg/dm³) |
Poisson’s coefficient, ν |
|---|---|---|---|---|---|---|---|
| 11 | - | - | 0.31 | - | |||
| 284 | 168 | - | 43.3 | 221 | - | ||
| 852 | - | 44 | 32.2 | 112 | 323 |
Heat treated : 1426°C - 1519°C
| ISO 9329-4 | Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 4: Austenitic stainless steels | ISO-9329-4.pdf |
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