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- » GB 85
ML30CrMnSiA
ML16CrSiNi
ML20CrMoA
ML30CrMoA
ML35CrMoA
ML42CrMoA
ML38CrA
ML40CrMoA
GB 65
GB 70 - GBT
- China
- China structural steel and alloy steel
Chemical composition % of the ladle analysis of grade GB 85
| C(％) | Si(％) | Mn(％) | P(％) | S(％) | Cr(％) | Ni(％) |
| 0.82-0.90 | 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) |
|---|---|---|---|---|---|---|
| 365 (≥) | 274 (≥) | 24 | 32 | 21 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 122 |
| 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 |
|---|---|---|---|---|---|---|---|
| 418 (≥) | 484 (≥) | 11 | 32 | 23 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 333 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 615 | 681 | 523 |
| 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 |
|---|---|---|---|
| S38500 | Austenitic Chromium Nickel Stainless Steel (Low Work Hardening) |
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| A 213 S30615 | Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes |
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| A 240 S30615 | Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications |
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| A 249 S30615 | Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes |
||
| A 312 S30615 | Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes |
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| A 959 S30615 | Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels |
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| S30615 | Austenitic Chromium Nickel Silicon Heat Resisting Steel |
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| SA-213 S30615 | Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes |
||
| SA-240 S30615 | Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications |
||
| SA-249 S30615 | Specification for Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes |
||
| SA-312 S30615 | Specification for Seamless and Welded Austenitic Stainless Steel Pipes |
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| 34CrAlNi7 | Al-alloyed nitriding steel grade for large cross-sections. Suitable for piston rods, extruders, cylinders, gear wheels, |
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| 1.8550 | Al-alloyed nitriding steel grade for large cross-sections. Suitable for piston rods, extruders, cylinders, gear wheels, |
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| V820 | Al-alloyed nitriding steel grade for large cross-sections. Suitable for piston rods, extruders, cylinders, gear wheels, |
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| X6NiCrSiNCe35-25 | Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel |
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| 1.4854 | Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel |
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| NiCr22Mo9Nb | Heat resisting steels and nickel alloys |
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| 2.4856 | Heat resisting steels and nickel alloys |
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| NiCr23Fe | Heat resisting steels and nickel alloys |
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| 2.4851 | Heat resisting steels and nickel alloys |
