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GB 1Cr18Ni9 Details
GB 1Cr18Ni9 Standard Download
| Category | Type | Grade | Microstructure | Designations |
|---|---|---|---|---|
| Grades | Stainless Steels | 1Cr18Ni9 | Austenite | China - GB , GB 13296 (2007) - Seamless stainless steel tubes for boiler and heat exchanger GB 2270 (1980) - Seamless tubes GB 5310 (1999) - Seamless steel tubes and pipes for high pressure boiler GB/T 1220 (1992) - Stainless steel bars GB/T 12770 (2002) - Welded stainless steel tubes for machine structures GB/T 12771 (2000) - Welded stainless steel pipes for liquid delivery GB/T 14975 (2002) - Stainless steel seamless tubes for structures GB/T 14976 (2002) - Stainless steel seamless tubes for fluid transport GB/T 18705 (2002) - Welded stainless steel pipes for decoration GB/T 3280 (2007) - Cold rolled stainless steel sheets and plates GB/T 4226 (2004) - Cold finished stainless steel bars GB/T 4237 (1992) - Hot rolled stainless steel sheets and plates GB/T 4239 (1991) - Cold rolled stainless steel and heat resisting steel strips GB/T 4240 (1993) - ainless steel wires GB/T 4356 (2002) - Stainless steel wire rods JB/T 6398 (2006) - Heavy stainless acid resistant and heat resistant steel forgings |
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | - | 0.15 | ||
| Si | - | 1.00 | ||
| Mn | - | 2.00 | ||
| P | - | 0.035 | ||
| S | - | 0.030 | ||
| Ni | 8.00 | 10.00 | ||
| Cr | 17.00 | 19.00 |
| Proof strength Rp0.2 (MPa) |
Tensile strength Rm (MPa) |
Impact energy KV (J) |
Elongation at fracture A (%) |
Reduction in cross section on fracture Z (%) |
As-Heat-Treated Condition | Brinell hardness (HBW) |
|---|---|---|---|---|---|---|
| 655 (≥) | 929 (≥) | 21 | 31 | 32 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 344 |
| Property | Density kg/dm3 |
Temperature T °C/F |
Specific heat J / kgK |
Thermal conductivity W/mK |
Electric resistance µΩ·cm |
Modulus of elasticity kN/mm2 |
Expansion rate |
|---|---|---|---|---|---|---|---|
| 565 (≥) | 421 (≥) | 14 | 42 | 11 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 332 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 612 | 762 | 693 |
| Product type | Products | Dimension | Processes | Deliver Status |
|---|---|---|---|---|
| Plates / Sheets | Plates / Sheets | 0.08-200mm(T)*W*L | Forging, hot rolling and cold rolling | Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting |
| Steel Bar | Round Bar, Flat Bar, Square Bar | Φ8-1200mm*L | Forging, hot rolling and cold rolling, Cast | Black, Rough Turning, Shot Blasting, |
| Coil / Strip | Steel Coil /Steel Strip | 0.03-16.0x1200mm | Cold-Rolled & Hot-Rolled | Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting |
| Pipes / Tubes | Seamless Pipes/Tubes, Welded Pipes/Tubes | OD:6-219mm x WT:0.5-20.0mm | Hot extrusion, Cold Drawn, Welded | Annealed, Solution and Aging, Q+T, ACID-WASHED |
| Grade | Standard | Country | Application |
|---|---|---|---|
| Y1Cr18Ni9 | GB | China | Improve the machinability, ablation resistance. Suitable for automatic lathe production of bolt and nut |
| 1Cr18Ni9 | GB | China | High strength after cold forming, but elongation than 1 cr17ni7 slightly worse. Used in architectural decoration parts |
| Y1Cr18Ni9Se | GB | China | Improve the machinability, ablation resistance. Suitable for automatic lathe production of rivets, screws |
| 1Cr18Ni9Ti | GB | China | Seamless stainless steel tubes for boiler and heat exchanger |