GBT GB 70 Enquiry | Print this page
| Category | Type | Steel grade | Standard | Country |
|---|---|---|---|---|
| Grades | Special Alloy | GB 70 | GBT | China |
Chemical composition % of the ladle analysis of grade GB 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) |
|---|---|---|---|---|---|---|
| 376 (≥) | 438 (≥) | 42 | 12 | 33 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 413 |
| 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 |
|---|---|---|---|---|---|---|---|
| 638 (≥) | 754 (≥) | 42 | 31 | 33 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 244 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 429 | 763 | 146 |
| 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 |
