GBT 75 Enquiry | Print this page
| Category | Type | Steel grade | Standard | Country |
|---|---|---|---|---|
| Grades | Special Alloy | 75 | GBT | China |
Chemical composition % of the ladle analysis of grade 75
| C(％) | Si(％) | Mn(％) | P(％) | S(％) | Cr(％) | Ni(％) | Cu(%) |
|---|---|---|---|---|---|---|---|
| 0.72-0.80 | 0.17-0.37 | 0.50-0.80 | 0.035 | 0.035 | 0.25 | 0.3 | 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) |
|---|---|---|---|---|---|---|
| 139 (≥) | 995 (≥) | 12 | 24 | 44 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 244 |
| 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 |
|---|---|---|---|---|---|---|---|
| 283 (≥) | 295 (≥) | 24 | 11 | 24 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 413 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 279 | 975 | 919 |
| 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 |
|---|---|---|---|
| 317LN | GBT | China | Chemical compositions of SAE wrought stainless steels |
| A 167 Type 317LN | GBT | China | Stainless and Heat-Resisting Chromium-Nickel Steel Plate, Sheet, and Strip |
| A 240 Type 317LN | GBT | China | Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications |
| A 959 Type 317LN | GBT | China | Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels |
| SUS317LN | GBT | China | Specification for stainless steel bars |
| A 240 S40975 | GBT | China | Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications |
| A 959 S40975 | GBT | China | Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels |
| S40975 | GBT | China | Ferritic Chromium Stainless Steel with Nickel |
| SA-240 S40975 | GBT | China | Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications |
| A 1049 S32750 | GBT | China | Stainless Steel Forgings, Ferritic/Austenitic (Duplex), for Pressure Vessels and Related Components |
| A 240 S32750 | GBT | China | Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications |
| A 270 S32750 | GBT | China | Seamless and Welded Austenitic Stainless Steel Sanitary Tubing |
| A 276 S32750 | GBT | China | Stainless Steel Bars and Shapes |
| A 479 S32750 | GBT | China | Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels |
| A 511 S32750 | GBT | China | Seamless Stainless Steel Mechanical Tubing |
| A 789 S32750 | GBT | China | Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service |
| A 790 S32750 | GBT | China | Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe |
| A 815 CRS32750 | GBT | China | Wrought Ferritic, Ferritic/Austenitic, and Martensitic Stainless Steel Piping Fittings |
| A 815 WPS32750 | GBT | China | Wrought Ferritic, Ferritic/Austenitic, and Martensitic Stainless Steel Piping Fittings |
| A 928 S32750 | GBT | China | Ferritic/Austenitic (Duplex) Stainless Steel Pipe Electric Fusion Welded with Addition of Filler Metal |
