A4 - BS 3100-1991

Grade	A4
Corresponding Standard	BS 3100-1991 Specification for Steel Castings for General Engineering Purposes
Classification	Cast Steel

A4 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S
Minimum Value	0.18	-	1.2	-	-
Maximum Value	0.25	0.6	1.6	0.05	0.05

A4 Mechanical Properties

Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Hardness HBW	Impact Energy Absorption KV2 J
N or N+T or OQ+T or WQ+T	540~690	≥320	≥16	152~207	≥30

A4 Corresponding Standards(Same grade name, different standards)

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