France AFNOR NF A 49-214, 316F22 Specialsteel Steel tubes. Seamless austenitic steel tubes for use at high temperatures. Dimensions (with normal tolerances). Technical conditions of delivery and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Class | Grade | Standard | Country | Application |
|---|---|---|---|---|---|
| Steel Grades | Specialsteel | 316F22 | AFNOR | France | Steel tubes. Seamless austenitic steel tubes for use at high temperatures. Dimensions (with normal tolerances). Technical conditions of delivery |
| C | Si | Mn | P | S | Cr | Ni | Mo | B | Nb+Ta |
|---|---|---|---|---|---|---|---|---|---|
| 0.04 -0.08 | ≤1.00 | ≤2.00 | ≤0.040 | ≤0.030 | 16.00 -18.00 | 12.00 -14.00 | 2.00 -2.50 | 0.0015 -0.0060 | 8×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) |
|---|---|---|---|---|---|---|
| 495 (≥) | 827 (≥) | 34 | 42 | 21 | 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 |
|---|---|---|---|---|---|---|---|
| 32 | - | - | 0.32 | - | |||
| 513 | 449 | - | 21.3 | 124 | - | ||
| 545 | - | 11 | 32.2 | 132 | 232 |
Heat treated : 1784°C - 1886°C
| Grade | Standard | Country | Application |
|---|---|---|---|
| Z6CNDNb17-12 | |||
| Z6CNDNb17-12 | |||
| Z6CNDNb17.13B | |||
| Z6CNDT17-13B | |||
| Z6CND17-13B | |||
| Z10CNWT17-13B | |||
| Z8CNDT17.13B | |||
| A35-586 316F22 |
| NF A 49-214 | Steel tubes. Seamless austenitic steel tubes for use at high temperatures. Dimensions (with normal tolerances). Technical conditions of delivery | NF-A-49-214.pdf |
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