France AFNOR NF EN 10028-7, NF EN 10088-1, NF EN 10088-2, NF EN 10088-3, NF EN 10088-4, NF EN 10088-5, NF EN 10216-5 (2004), NF EN 10217-7, NF EN 10250-4, NF EN 10253-3, NF EN 10253-4, NF EN 10272, NF EN 10297-2 (2005), X1NiCrMoCu31-27-4 Specialsteel Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Class | Grade | Type | Standard | Country | Application | 
|---|---|---|---|---|---|---|
| Steel Grades | Specialsteel | X1NiCrMoCu31-27-4 | Austenite | AFNOR | France | Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel | 
| C | Si | Mn | P | S | Cr | Mo | Ni | N | Cu | 
|---|---|---|---|---|---|---|---|---|---|
| ≤0.020 | ≤0.70 | ≤2.00 | ≤0.030 | ≤0.010 | 26.00 -28.00 | 3.00 -4.00 | 30.00 -32.00 | ≤0.11 | 0.70 -1.50 | 
| 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) | 
|---|---|---|---|---|---|---|
| 523 (≥) | 243 (≥) | 12 | 13 | 42 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 111 | 
| 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 | 
|---|---|---|---|---|---|---|---|
| 43 | - | - | 0.11 | - | |||
| 655 | 867 | - | 23.3 | 124 | - | ||
| 488 | - | 23 | 31.2 | 241 | 243 | 
Heat treated : 1556°C - 1244°C
| NF EN 10028-7 | Flat products made of steels for pressure purposes - Part 7: Stainless steels | NF-EN-10028-7.pdf | 
| NF EN 10088-1 | Stainless steels - Part 1: List of stainless steels | NF-EN-10088-1.pdf | 
| NF EN 10088-2 | Stainless steels - Part 2: Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for general purposes | NF-EN-10088-2.pdf | 
| NF EN 10088-3 | Stainless steels - Part 3: Technical delivery conditions for semi-finished products, bars, rods, wire, sections and bright products of corrosion resisting steels for general purposes | NF-EN-10088-3.pdf | 
| NF EN 10088-4 | Stainless steels - Part 4: Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for construction purposes | NF-EN-10088-4.pdf | 
| NF EN 10088-5 | Stainless steels - Part 5: Technical delivery conditions for bars, rods, wire, sections and bright products of corrosion resisting steels for construction purposes | NF-EN-10088-5.pdf | 
| NF EN 10216-5 (2004) | Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 5: Stainless steel tubes | NF-EN-10216-5-(2004).pdf | 
| NF EN 10217-7 | Welded steel tubes for pressure purposes - Technical delivery conditions - Part 7: Stainless steel tubes | NF-EN-10217-7.pdf | 
| NF EN 10250-4 | Open die steel forgings for general engineering purposes - Part 4: Stainless steels | NF-EN-10250-4.pdf | 
| NF EN 10253-3 | Butt-welding pipe fittings - Part 3: Wrought austenitic and austenitic-ferritic (duplex) stainless steels without specific inspection requirements | NF-EN-10253-3.pdf | 
| NF EN 10253-4 | Butt-welding pipe fittings - Part 4: Wrought austenitic and austenitic-ferritic (duplex) stainless steels with specific inspection requirements | NF-EN-10253-4.pdf | 
| NF EN 10272 | Stainless steel bars for pressure purposes | NF-EN-10272.pdf | 
| NF EN 10297-2 (2005) | Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel | NF-EN-10297-2-(2005).pdf | 
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