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| ITEM | Standard Number | Descriptions |
|---|---|---|
| 1 | SEW 400 | Stainless steels for rolled and forged products |
| 2 | DIN 17442 | Rolled, Wrought or Cast Stainless Steel Products for Medical Instruments |
| Material | Standard | Country |
| X39CrMo17-1 | AWS | Germany |
| 1.4122 | AWS | Germany |
| X39CrMo17-1 | B.S. | UK |
| 1.4122 | B.S. | UK |
| X39CrMo17-1 | AFNOR | France |
| 1.4122 | AFNOR | France |
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.33 | 0.45 | ||
| Si | 1.00 | |||
| Mn | 1.00 | |||
| P | 0.040 | |||
| S | 0.030 | |||
| Cr | 15.50 | 17.50 | ||
| Ni | 1.00 | |||
| Mo | 0.80 | 1.30 |
| Tensile strength | 241～664 | σb/MPa |
| Yield Strength | 716 | σ 0.2 ≥/MPa |
| Elongation | 79 | δ5≥(％) |
| ψ | - | ψ≥(％) |
| Akv | - | Akv≥/J |
| HBS | 164～373 | - |
| HRC | 30 | - |
| Thermal expansion | 41-32 | e-6/K |
| Thermal conductivity | 71-35 | W/m.K |
| Specific heat | 450-460 | J/kg.K |
| Melting temperature | 8679-7401 | 째C |
| Density | 1647-8782 | kg/m3 |
| Resistivity | 0.50-0.60 | Ohm.mm2/m |
| Steel Grade | Specification | Processing range(mm) |
| 1.4122, X35CrMo17, X39CrMo17-1 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 |
