Grades | Stainless Steels | HR4
B.S. HR4
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HR4 Application:Steel plate, sheet and strip. Carbon and carbon-manganese plate, sheet and strip. Specification for hot rolled steel plate, sheet and wide strip based on formability
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.12 | 0.20 | ||
| Si | - | 1.00 | ||
| Mn | - | 1.00 | ||
| P | - | - | ||
| S | - | 0.015 | ||
| Cr | 14.00 | 16.00 | ||
| Ni | - | remaining | ||
| Mo | 3.00 | 5.00 | ||
| Co | 13.00 | 15.50 | ||
| Ti | 3.50 | 4.50 | ||
| Fe | - | 1.00 | ||
| Al | 4.50 | 5.50 | ||
| Cu | - | 0.20 | ||
| B | 0.0100 | 0.0250 | ||
| Bi | - | 0.0001 | ||
| Pb | - | 0.0015 | ||
| Ag | - | 0.0005 | ||
| Zr | - | 0.15 |
| Yield Rp0.2 (MPa) |
Tensile Rm (MPa) |
Impact KV (J) |
Elongation A (%) |
Reduction in cross section on fracture Z (%) |
As-Heat-Treated Condition | HBW |
|---|---|---|---|---|---|---|
| 321 (≥) | 955 (≥) | 21 | 34 | 22 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 443 |
| Property | Density kg/dm3 |
Temperature T °C/F |
Specific heat J / kgK |
Thermal conductivity W/mK |
Electric resistance µΩ·cm |
|---|---|---|---|---|---|
| 922 (≥) | 418 (≥) | 44 | 21 | 21 | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
- | - | - |
| 546 | 511 | 156 | - | - | - |
| 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 |