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| ITEM | Standard Number | Descriptions |
|---|---|---|
| 1 | GB 13296 (2007) | Seamless stainless steel tubes for boiler and heat exchanger |
| 2 | GB 4238 (1992) | Heat-resisting steel sheets and plates |
| 3 | GB/T 1220 (1992) | Stainless steel bars |
| 4 | GB/T 1221 (1992) | Heat-resisting steel bars |
| 5 | GB/T 12770 (2002) | Welded stainless steel tubes for machine structures |
| 6 | GB/T 12771 (2000) | Welded stainless steel pipes for liquid delivery |
| 7 | GB/T 14976 (2002) | Stainless steel seamless tubes for fluid transport |
| 8 | GB/T 3280 (2007) | Cold rolled stainless steel sheets and plates |
| 9 | GB/T 4226 (2004) | Cold finished stainless steel bars |
| 10 | GB/T 4237 (1992) | Hot rolled stainless steel sheets and plates |
| 11 | GB/T 4239 (1991) | Cold rolled stainless steel and heat resisting steel strips |
| 12 | GB/T 4240 (1993) | Stainless steel wires |
| 13 | GB/T 4356 (2002) | Stainless steel wire rods |
| 14 | JB/T 6398 (2006) | Heavy stainless acid resistant and heat resistant steel forgings |
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.08 | |||
| Si | 1.00 | |||
| Mn | 2.00 | |||
| P | 0.035 | |||
| S | 0.030 | |||
| Ni | 19.00 | 22.00 | ||
| Cr | 24.00 | 26.00 |
| Tensile strength | 489～448 | σb/MPa |
| Yield Strength | 072 | σ 0.2 ≥/MPa |
| Elongation | 31 | δ5≥(％) |
| ψ | - | ψ≥(％) |
| Akv | - | Akv≥/J |
| HBS | 386～419 | - |
| HRC | 30 | - |
| Thermal expansion | 60-67 | e-6/K |
| Thermal conductivity | 40-63 | W/m.K |
| Specific heat | 450-460 | J/kg.K |
| Melting temperature | 3843-8525 | 째C |
| Density | 1078-2422 | kg/m3 |
| Resistivity | 0.50-0.60 | Ohm.mm2/m |
| Steel Grade | Specification | Processing range(mm) |
| 0Cr25Ni20 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 |