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| Category | Type | Steel grade | Standard | Country |
|---|---|---|---|---|
| Grades | Special Alloy | 75 | GBT | China |
Chemical composition%of the ladle analysis of grade75
| 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) |
|---|---|---|---|---|---|---|
| 492(≥) | 465(≥) | 42 | 41 | 43 | Solution and Aging,Annealing,Ausaging,Q+T,etc | 323 |
| 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 |
|---|---|---|---|---|---|---|---|
| 185(≥) | 444(≥) | 12 | 22 | 33 | 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 | |||||
| 453 | 716 | 473 |
| 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 |
