En12 - BS 970-1955

Grade	En12
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	Alloy Steel

En12 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Ni
Minimum Value	0.3	0.1	-	-	-	0.6
Maximum Value	0.45	0.35	1.5	0.05	0.05	1

En12 Mechanical Properties

diameter or width across flats d mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %	Impact Energy Absorption KV2 J
Bar, bloom, forging; d≤152.4	Normalizing 830~860°C	≥540	≥309	≥20	152~207	≥20
Bar, billet, forged product; d ≤ 101.6	Normalizing 830~860°C	≥540	≥309	≥20	152~207	≥27
Bar, bloom, forging; d≤152.4	Quenching and Tempering Q	≥618	≥463	≥22	179~229	≥34
Bar, billet, forged product; d ≤ 101.6	Quenching and Tempering Q	≥618	≥463	≥22	179~229	≥47

• 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

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