GBT GB 70Enquiry|Print this page
| Category | Type | Steel grade | Standard | Country |
|---|---|---|---|---|
| Grades | Special Alloy | GB 70 | GBT | China |
Chemical composition%of the ladle analysis of gradeGB 70
| C(％) | Si(％) | Mn(％) | P(％) | S(％) | Cr(％) | Ni(％) |
|---|---|---|---|---|---|---|
| 0.62-0.70 | 0.17-0.37 | 0.50-0.80 | 0.035 | 0.035 | Max 0.25 | Max 0.25 |
| 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) |
|---|---|---|---|---|---|---|
| 935(≥) | 745(≥) | 22 | 12 | 44 | Solution and Aging,Annealing,Ausaging,Q+T,etc | 423 |
| 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 |
|---|---|---|---|---|---|---|---|
| 391(≥) | 139(≥) | 13 | 14 | 42 | Solution and Aging,Annealing,Ausaging,Q+T,etc | 142 | |
| Temp. °C/°F | Creep strain limit (10000h) (Rp1,0)N/mm2 | Creep rupture strength (10000h) (Rp1,0)N/mm2 | |||||
| 317 | 793 | 482 |
| 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 |
|---|---|---|---|
| GH3170 | GBT | China | Iron-based superalloy |
| S47450 | GBT | China | Steels of blade for steam turbine |
| S47670 | GBT | China | Steels of blade for steam turbine |
| 317 | GBT | China | Steel, Corrosion Resistant, Bars, Wire, Shapes, and Forgings |
| 317 | GBT | China | Steel, Corrosion Resistant, Bars, Wire, Shapes, and Forgings |
| 317 | GBT | China | Steel, Corrosion Resistant, Bars, Wire, Shapes, and Forgings |
| A 167 Type 317 | GBT | China | Stainless and Heat-Resisting Chromium-Nickel Steel Plate, Sheet, and Strip |
| A 182 F 317 | GBT | China | Standard Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service |
| A 213 TP317 | GBT | China | Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes |
| A 240 Type 317 | GBT | China | Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications |
| A 276 317 | GBT | China | Stainless Steel Bars and Shapes |
| A 314 317 | GBT | China | Stainless Steel Billets and Bars for Forging |
| A 358 317 | GBT | China | Electric-Fusion-Welded Austenitic Chromium-Nickel Stainless Steel Pipe for High-Temperature Service and General Applications |
| A 403 WP 317 | GBT | China | Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings |
| A 409 TP317 | GBT | China | Welded Large Diameter Austenitic Steel Pipe for Corrosive or High-Temperature Service |
| A 473 317 | GBT | China | Stainless Steel Forgings |
| A 511 MT317 | GBT | China | Seamless Stainless Steel Mechanical Tubing |
| A 554 MT 317 | GBT | China | Welded Stainless Steel Mechanical Tubing |
| A 580 Type 317 | GBT | China | Stainless Steel Wire |
| A 632 Grade TP 317 | GBT | China | Seamless and Welded Austenitic Stainless Steel Tubing (Small-Diameter) for General Service |
