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HR4
HR4 material is B.S. BS 1449-1-1.2 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 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.
Chemical composition of HR4, HR4 mechanical properties, HR4 datasheet, HR4 equivalent grade, Heat treatment and temperature process of HR4.
HR4 property sheet
HR4 Spec.
| B.S. BS 1449-1-1.2 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 |
Chemical Composition of HR4
| C: | 0.12 | 0.20 |
| Si: | Max | 1.00 |
| Mn: | Max | 1.00 |
| P: | Max | Min |
| S: | Max | 0.015 |
| Cr: | 14.00 | 16.00 |
| Ni: | Max | remaining |
| Mo: | 3.00 | 5.00 |
| Co: | 13.00 | 15.50 |
| Ti: | 3.50 | 4.50 |
| Fe: | Max | 1.00 |
| Al: | 4.50 | 5.50 |
| Cu: | Max | 0.20 |
| B: | 0.0100 | 0.0250 |
| Bi: | Max | 0.0001 |
| Pb: | Max | 0.0015 |
| Ag: | Max | 0.0005 |
| Zr: | Max | 0.15 |
Mechanical Properties of HR4
| Rp0.2 (MPa) | 888 (≥) |
| Rm (MPa) | 345 (≥) |
| AKV (J) | 41 |
| A (%) | 34 |
| Z (%) | 21 |
| Hardness | HBW 243 |
HR4 shape and dimensions
| HR4 Round bar: | 1mm-800mm |
| HR4 Square bar: | 10mm * 10mm-600mm *600mm |
| HR4 Flat bar: | Thickness:8mm-800mm Width:10mm to 1500mm |
| HR4 Sheet or Plate: | Thickness:3mm-80mm Width:1.5mm to 1500mm |
| HR4 Strip or Coil: | Thickness:0.1mm-3mm Width:1.5mm-1500mm |
| HR4 Forgings: | Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes |
©Longhai Special Steel 2024
