151 Grade 400 151 Grade 26 - BS 1501-1-1980

Grade	151 Grade 400
Old Grade
Corresponding Standard	BS 1501-1-1980 Steels for Fired and Unfired Pressure Vessels : Plates Part 1. Specification for Carbon and Carbon Manganese Steels
Classification	Carbon Steel

151 Grade 400 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	More
Minimum Value	-	-	0.4	-	-	-	-	-	-	Cr+Cu+Mo+Ni≤0.7
Maximum Value	0.2	0.35	1.2	0.03	0.045	0.25	0.3	0.3	0.1	Cr+Cu+Mo+Ni≤0.7

151 Grade 400 Mechanical Properties

thickness t mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %
3＜t≤16	正火N	400~520	≥225	≥24
16＜t≤40	正火N	400~520	≥215	≥24
40＜t≤63	正火N	400~520	≥205	≥23
63＜t≤100	正火N	400~520	≥200	≥22

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