St44-2 - Q/BQB 303-2018

Grade	St44-2
Corresponding Standard	Q/BQB 303-2018 Conti nuousl y hot-rol l ed steel sheet and stri p for general structure
Classification	Carbon Steel

St44-2 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	N	More
Minimum Value	-	-	-	-	-	-	Ceq≤0.4
Maximum Value	0.21	0.35	1.5	0.025	0.02	0.012	Ceq≤0.4

St44-2 Mechanical Properties

thickness t mm	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %
1.5<t≤2	430~580	≥275	≥15
2<t≤2.5	430~580	≥275	≥16
2.5<t<3	430~580	≥275	≥17
3≤t≤16	430~580	≥275	≥21
t>16	410~560	≥265	≥21

St44-2 Corresponding Standards(Same grade name, different standards)

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