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| ITEM | Standard Number | Descriptions |
|---|---|---|
| 1 | GB/T 1220 (1992) | Stainless steel bars |
| 2 | GB/T 3086 (2008) | Specification for high carbon chromium stainless bearing steels |
| 3 | GB/T 4240 (1993) | Stainless steel wires |
| 4 | GB/T 4356 (2002) | Stainless steel wire rods |
| Material | Standard | Country |
| 9Cr18Mo | GB | China |
| 9Cr18MoV | GB | China |
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.90 | 1.00 | ||
| Si | 0.80 | |||
| Mn | 0.80 | |||
| P | 0.035 | |||
| S | 0.030 | |||
| Ni | 0.60 | |||
| Cr | 17.00 | 19.00 | ||
| Mo | 0.75 |
| Tensile strength | 025～994 | σb/MPa |
| Yield Strength | 127 | σ 0.2 ≥/MPa |
| Elongation | 59 | δ5≥(％) |
| ψ | - | ψ≥(％) |
| Akv | - | Akv≥/J |
| HBS | 291～743 | - |
| HRC | 30 | - |
| Thermal expansion | 45-78 | e-6/K |
| Thermal conductivity | 25-40 | W/m.K |
| Specific heat | 450-460 | J/kg.K |
| Melting temperature | 0250-5798 | 째C |
| Density | 1529-1990 | kg/m3 |
| Resistivity | 0.50-0.60 | Ohm.mm2/m |
| Steel Grade | Specification | Processing range(mm) |
| 9Cr18 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 |
