B.S. HR4

2014-03-03 17:24:40 Print this page

The high quality UK B.S. HR4 material is one of the more steel grades we supply, 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. HR4 is our main production grade, which has been approved by customers in many countries since its initial production, including our HR4 round bars, flat bar, forgings, fasteners, tubes, wires, strips, sheets & Plates, as well as a variety of profiles, professional high precision auto-lathe processing manufacturer of clinching fasteners, axes, standoffs, screws, studs, nuts, bolt, OEM parts and special shaped turning partsthe state of delivery includes quenched and tempered, annealed, machined semi-finished products, we also have strict management of the packaging, to avoid material damage from transportation. We are the best supplier of HR4 materials, and we are willing to develop together with customers from all over the world.

Also includes HR4 steel material norm, chemical composition, mechanical properties, datasheet, HR4 equivalent, heat treatment and temperature process of HR4, The peak hardness can be achieved, Contains all of the specification, welding properties, let us in HR4 this steel grade have a more comprehensive understanding, Download the full HR4 PDF version of this datasheet.

Chemical composition (wt.%) of HR4

Elements	Min.（≥）	Max.（≤）
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

Mechanical Properties of HR4

Rp0.2 (MPa)	Rm (MPa)	Impact KV (J)	Elongation A (%)	A Z (%)	Delivery	Hardness HB
358 (≥)	211 (≥)	22	41	43	Solution & Aging, Ann, Ausaging, Q+T	313