HM Enquiry | Print this page
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- Type
- Steel grade
- Country
- USE
Chemical composition % of the ladle analysis of grade HM
| Co(%) |
| 7.5 |
| 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) |
|---|---|---|---|---|---|---|
| 741 (≥) | 938 (≥) | 22 | 42 | 41 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 241 |
| 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 |
|---|---|---|---|---|---|---|---|
| 474 (≥) | 261 (≥) | 14 | 22 | 34 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 331 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
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| 626 | 287 | 232 |
| 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 |
|---|---|---|---|
| A 213 N08925 | Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes |
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| A 240 N08925 | Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications |
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| A 276 N08925 | Stainless Steel Bars and Shapes |
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| A 312 N08925 | Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes |
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| A 479 N08925 | Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels |
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| B 625 N08925 | UNS N08925, UNS N08031, UNS N08932, UNS N08926, UNS N08354, and UNS R20033 Plate, Sheet, and Strip |
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| B 649 N08925 | Standard Specification for Ni-Fe-Cr-Mo-Cu-N Low-Carbon Alloys (UNS N08925, UNS N08031, UNS N08354, and UNS N08926), and Cr-Ni-Fe-N Low-Carbon Alloy (UNS R20033) Bar and Wire, and Ni-Cr-Fe-Mo-N Alloy (UNS N08936) Wire |
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| B 673 N08925 | Standard Specification for UNS N08925, UNS N08354, and UNS N08926 Welded Pipe |
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| B 674 N08925 | Standard Specification for UNS N08925, UNS N08354, and UNS N08926 Welded Tube |
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| B 677 N08925 | UNS N08925, UNS N08354, and UNS N08926 Seamless Pipe and Tube |
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| N08925 | Nickel Iron Chromium Molybdenum Copper Alloy |
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| SB-625 N08925 | UNS N08925, UNS N08031, UNS N08932, UNS N08926, UNS N08354, and UNS R20033 Plate, Sheet, and Strip |
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| SB-649 N08925 | Specification for Ni-Fe-Cr-Mo-Cu Low-Carbon Alloy (UNS N08904), Ni-Fe-Cr-Mo-Cu-N Low-Carbon Alloys (UNS N08925, UNS N08031, and UNS N08926), and Cr-Ni-Fe-N Low-Carbon Alloy (UNS R20033) Bar and Wire |
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| SB-673 N08925 | Specification for UNS N08904, UNS N08925 and N08926 Welded Pipe |
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| SB-674 N08925 | Specification for UNS N08904, UNS N08925 and UNS N08926 Welded Tube |
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| SB-677 N08925 | UNS N08925, UNS N08354, and UNS N08926 Seamless Pipe and Tube |
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| 20X12BHMΦ | Russia GOCT standard stainless steel and heat resistant steel steel grade and chemical composition |
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