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| ITEM | Standard Number | Descriptions |
|---|---|---|
| 1 | ISO/TR 4956 | Wrought steels for use at elevated temperatures in engines |
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.03 | 0.08 | ||
| Si | 1.00 | |||
| Mn | 2.00 | |||
| P | 0.025 | |||
| S | 0.015 | |||
| Cr | 13.50 | 16.00 | ||
| Mo | 1.00 | 1.50 | ||
| Ni | 24.00 | 27.00 | ||
| V | 0.10 | 0.50 | ||
| Ti | 1.90 | 2.30 | ||
| B | 0.003 | 0.010 |
| Tensile strength | 911～216 | σb/MPa |
| Yield Strength | 124 | σ 0.2 ≥/MPa |
| Elongation | 90 | δ5≥(％) |
| ψ | - | ψ≥(％) |
| Akv | - | Akv≥/J |
| HBS | 676～757 | - |
| HRC | 30 | - |
| Thermal expansion | 19-42 | e-6/K |
| Thermal conductivity | 19-00 | W/m.K |
| Specific heat | 450-460 | J/kg.K |
| Melting temperature | 4845-9881 | 째C |
| Density | 5168-2275 | kg/m3 |
| Resistivity | 0.50-0.60 | Ohm.mm2/m |
| Steel Grade | Specification | Processing range(mm) |
| X6NiCrTiMoVB25-15-2 Stainless Steels | Round Bar and Hollow Bar | Φ1 to Φ2000 |
| Square and Flat Steel | Φ10 to Φ100 | |
| Plate and Sheet | 0.08-800(Thickness)*10-1500(Width)*Length | |
| Tube or Pipe | OD:Φ4-410; WT:1-35 mm; Lenght:10-12000 | |
| Coil and Strip Steel | THK:0.1mm Width:1500mm | |
| Forged | Ring/Cylindrical/Disk |
