En56BM - BS 970-1955

Grade	En56BM
Corresponding Standard	BS 970-1955 Wrought steels in the form of bars, billets and forgings up to 6 in. ruling section for automobile and general engineering purpose
Classification	Martensitic Stainless Steel

En56BM Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Mo	Zr	Pb	Se	More
Minimum Value	0.12	-	-	-	-	12	-	-	-	-	-	Mo+Zr+Pb+Se≤1
Maximum Value	0.18	1	1.5	0.045	0.75	14	1	0.6	0.6	0.35	0.6	Mo+Zr+Pb+Se≤1

En56BM Mechanical Properties

diameter or width across flats d mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Elongation or Extension Rate δ %	Hardness HBW	Impact Energy Absorption KV2 J
Bar, square bloom, forging; d≤152.4	Quenching and Tempering P	≥540	≥20	152~207	≥34
Bar, square bloom, forging; d≤152.4	Quenching and Tempering R	≥695	≥15	201~255	≥27
Bars, square billets, forgings; d≤101.6	Quenching and Tempering S	≥772	≥12	223~277	-

• d-diameter or width across flats/mm
• The unit conversion for strength is based on: 1tons/sq.in=15.44N/mm2
• The unit conversion for impact energy absorption is based on: 1ft.lb=1.3558J

En56BM Corresponding Standards(Same grade name, different standards)

1	BS 970-4-1970
	(EN56BM) 416S29
2	BS 970-1955
	En56BM

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!