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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

Related Materials

HR4
HR40
2HR401
HR402
HR403
HR404

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) 614 (≥)
Rm (MPa) 921 (≥)
AKV (J) 33
A (%) 24
Z (%) 13
Hardness HBW 333

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