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GB 08F Details
GB 08F Standard Download
| Category | Type | Grade | Designations |
|---|---|---|---|
| Grades | Structural Steel | 08F | China - GB , GB/T 699-1999 - This standard specifies the alloy steel, low alloy steel, alloy steel chemical composition relative to the provisions of the finished steel smelting chemical composition boundary limit allowable deviation, and gives the definition of related terms. GB 13237-1991 - GB/T 13793-1992 - GB 3206-1982 - GB/T 711-2008 - GB 3275-1991 - GB 699-1988 - GB 710-1991 - GB 711-1988 - |
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.05 | 0.11 | ||
| Si | - | 0.03 | ||
| Mn | 0.25 | 0.5 | ||
| P | - | 0.035 | ||
| S | - | 0.035 | ||
| Cr | - | 0.1 | ||
| Ni | - | 0.3 | ||
| Cu | - | 0.25 |
This standard specifies the alloy steel, low alloy steel, alloy steel chemical composition relative to the provisions of the finished steel smelting chemical composition boundary limit allowable deviation, and gives the definition of related terms.
| ReL (MPa) | Rm (MPa) | Z (%) | A5.65 (%) | Heat treatment condition | Technology | Sampl |
|---|---|---|---|---|---|---|
| 175(≥) | 295(≥) | 60(≥) | 35(≥) | Normalizing | 930℃ Heat preservation≥30min AC Normalizing | 25(Sampl size) |
HBS: 131(≤)
| 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) |
|---|---|---|---|---|---|---|
| 711 (≥) | 123 (≥) | 34 | 44 | 44 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 421 |
| 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 |
|---|---|---|---|---|---|---|---|
| 954 (≥) | 327 (≥) | 31 | 33 | 33 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 143 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 918 | 249 | 678 |
| 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 |
|---|---|---|---|
| 08F | GB | China | This standard specifies the alloy steel, low alloy steel, alloy steel chemical composition relative to the provisions of the finished steel smelting chemical composition boundary limit allowable deviation, and gives the definition of related terms. |
| U20082 | GB | China | This standard specifies the alloy steel, low alloy steel, alloy steel chemical composition relative to the provisions of the finished steel smelting chemical composition boundary limit allowable deviation, and gives the definition of related terms. |
| 310S | UNS | USA | Chemical compositions of SAE wrought stainless steels |
| 310S | YB | USA | Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes |
| A 167 Type 310S | SAE | USA | Stainless and Heat-Resisting Chromium-Nickel Steel Plate, Sheet, and Strip |
| A 213 TP310S | SAE | USA | Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes |
| A 240 Type 310S | SAE | USA | Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications |
| A 249 TP310S | SAE | USA | Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes |
| A 276 310S | SAE | USA | Stainless Steel Bars and Shapes |
| A 312 TP310S | SAE | USA | Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes |
| A 314 310S | SAE | USA | Stainless Steel Billets and Bars for Forging |
| A 358 310S | SAE | USA | Electric-Fusion-Welded Austenitic Chromium-Nickel Stainless Steel Pipe for High-Temperature Service and General Applications |
| A 403 CR310S | SAE | USA | Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings |
| A 403 WP 310S | SAE | USA | Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings |
| A 409 TP310S | SAE | USA | Welded Large Diameter Austenitic Steel Pipe for Corrosive or High-Temperature Service |
| A 473 310S | SAE | USA | Stainless Steel Forgings |