International ISO ISO 9329-4 (1997), ISO 9330-6 (1997), ISO 9328-5, X6CrNiMoNb17-12 Specialsteel Welded steel tubes for pressure purposes - Technical delivery conditions - Part 6: Longitudinally welded austenitic stainless steel tubes and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Class | Grade | Type | Standard | Country | Application |
|---|---|---|---|---|---|---|
| Steel Grades | Specialsteel | X6CrNiMoNb17-12 | Austenite | ISO | International | Welded steel tubes for pressure purposes - Technical delivery conditions - Part 6: Longitudinally welded austenitic stainless steel tubes |
| C | Si | Mn | P | S | Cr | Mo | Ni | Nb |
|---|---|---|---|---|---|---|---|---|
| ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 16.50 -18.50 | 11.00 -14.00 | 2.00 -2.50 | 10×C% -1.00 |
| 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) |
|---|---|---|---|---|---|---|
| 644 (≥) | 322 (≥) | 21 | 31 | 41 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 443 |
| 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 |
|---|---|---|---|---|---|---|---|
| 32 | - | - | 0.11 | - | |||
| 536 | 385 | - | 43.3 | 122 | - | ||
| 384 | - | 44 | 12.2 | 121 | 144 |
Heat treated : 1539°C - 1876°C
| Grade | Standard | Country | Application |
|---|---|---|---|
| X6CrNiMoNb17-12-2 | |||
| X6CrNiMoNb17-12-2 | |||
| X6CrNiMoNb17-12-2 |
| ISO 9329-4 (1997) | Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 4: Austenitic stainless steels | ISO-9329-4-(1997).pdf |
| ISO 9330-6 (1997) | Welded steel tubes for pressure purposes - Technical delivery conditions - Part 6: Longitudinally welded austenitic stainless steel tubes | ISO-9330-6-(1997).pdf |
| ISO 9328-5 | Steel plates and strips for pressure purposes - Technical delivery conditions - Part 5: Weldable fine grain steels, thermomechanically rolled | ISO-9328-5.pdf |
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