B3 - BS 3100-1991

Grade	B3
Corresponding Standard	BS 3100-1991 Specification for Steel castings for general engineering purposes
Classification	Cast Steel

B3 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni ^②	Cu ^②	Mo
Minimum Value	-	-	0.4	-	-	2	-	-	0.9
Maximum Value	0.18	0.6	0.7	0.04	0.04	2.75	0.4	0.3	1.2

B3 Mechanical Properties

Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Impact Energy Absorption KV2 J
N + T or OQ + T or WQ + T (T 720°C max)	≥540	≥325	≥17	≥25

Approximate Comparison Table Cast Steel

B3 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"!