France AFNOR NF A 35-573, NF A 35-574, NF A 36-209, NF A 49-244, Z3CNDU25-07Az Specialsteel Steel tubes - Welded austenitic stainless and austenitic ferritic steel rolled tubes for pressure service - Dimensions, technical conditions for delivery and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Class | Grade | Standard | Country | Application |
|---|---|---|---|---|---|
| Steel Grades | Specialsteel | Z3CNDU25-07Az | AFNOR | France | Steel tubes - Welded austenitic stainless and austenitic ferritic steel rolled tubes for pressure service - Dimensions, technical conditions for delivery |
| C | Si | Mn | P | S | Cr | Mo | Ni | N | Cu |
|---|---|---|---|---|---|---|---|---|---|
| ≤0.030 | ≤0.75 | ≤2.00 | ≤0.035 | ≤0.010 | 24.00 -26.00 | 2.70 -3.90 | 5.50 -7.50 | 0.14 -0.25 | 1.00 -2.00 |
| 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) |
|---|---|---|---|---|---|---|
| 424 (≥) | 864 (≥) | 43 | 21 | 34 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 441 |
| 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 |
|---|---|---|---|---|---|---|---|
| 13 | - | - | 0.23 | - | |||
| 133 | 849 | - | 33.3 | 113 | - | ||
| 679 | - | 42 | 24.2 | 214 | 241 |
Heat treated : 1425°C - 1816°C
| Grade | Standard | Country | Application |
|---|---|---|---|
| Z3CNDU25-07Az | |||
| Z3CNDU25-07Az |
| NF A 35-573 | Stainless steels for general purposes. Plates, wide strips and strips | NF-A-35-573.pdf |
| NF A 35-574 | Iron and steel. Stainless steel for general purposes. Semi- finished products, bars and wire rod | NF-A-35-574.pdf |
| NF A 36-209 | Iron and steel. Austenitic and austenic-ferritic stainless steels plates for boilers and pressure vessels | NF-A-36-209.pdf |
| NF A 49-244 | Steel tubes - Welded austenitic stainless and austenitic ferritic steel rolled tubes for pressure service - Dimensions, technical conditions for delivery | NF-A-49-244.pdf |
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