En7 - BS 970-1955

Grade	En7
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	Carbon Steel

En7 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S
Minimum Value	0.1	-	1	-	0.1
Maximum Value	0.3	0.25	1.3	0.06	0.18

En7 Mechanical Properties

diameter or width across flats d mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Elongation or Extension Rate δ %	Impact Energy Absorption KV2 J
Bar; d≤12.7	Cold Drawing	618~772	≥15	-
Bar; 12.7<d≤19.05	Cold Drawing	540~695	≥15	≥27
Bars; 19.05＜d≤28.6	Cold Drawing	540~695	≥15	≥20
Bar; 28.6＜d≤44.5	Cold Drawing	540~695	≥15	≥14
Bar; 44.5＜d≤63.5	Cold Drawing	463~618	≥12	≥14

• 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"!