250 - AS /NZS 3679-1-1996 - H2ABC

中文版

Grade	250
Corresponding Standard	AS /NZS 3679-1-1996 Part 1: Hot-rolled bars and sections
Classification	Carbon Steel

250 Chemical Element Composition Content (%)

Component	C	Si	P	S	Cr	Ni	Cu	Mo	Ti ^②	V ^②	Nb ^②	Al ^①	More
Minimum Value	-	-	-	-	-	-	-	-	-	-	-	-	Cr+Ni+Cu+Mo≤1；Nb+V≤0.03
Maximum Value	0.25	0.4	0.04	0.04	0.3	0.5	0.5	0.1	0.04	0.03	0.02	0.15	Cr+Ni+Cu+Mo≤1；Nb+V≤0.03

250 Mechanical Properties

thickness t mm	Heat Treatment or Condition	Yield Point σ_s Mpa	Elongation or Extension Rate δ %
Flat steel, section steel; t<11	≥410	≥260	≥22①
Flat steel, section steel; 11≤t<17	≥410	≥250	≥22①
Flat steel, section steel; 17≤t<40	≥410	≥250	≥22①
Flat steel, section steel; t≥40	≥410	≥230	≥22①
Hexagonal steel, round steel, square steel; t≤50	≥410	≥250	≥22①
Hexagonal steel, round steel, square steel; 50 < t ≤ 100	≥410	≥230	≥22①
Hexagonal steel, round steel, square steel; t≥100	≥410	≥230	≥22①

250 Corresponding Standards(Same grade name, different standards)

1	AS /NZS 3678-2016
	250
2	AS /NZS 3679-1-1996
	250
3	Others CS2-2012
	250

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