55F - BS 4360-1990

Grade	55F
Corresponding Standard	BS 4360-1990 Weldable structural steels
Classification	Carbon Steel
Density	7.85 g/cm³

55F Chemical Element Composition Content (%)

	Component	C	Si	Mn	P	S	Mo ^*	V	Nb	More
厚板、带钢和宽扁材①②ⓐ	Minimum Value	-	0.1	-	-	-	-	0.03	0.003	Nb+V≥0.13%
厚板、带钢和宽扁材①②ⓐ	Maximum Value	0.16	0.5	1.5	0.025	0.025	0.2	0.1	0.08	Nb+V≥0.13%

	Component	C	Si	Mn	P	S	V	Nb	More
空心型材①ⓐ	Minimum Value	-	-	-	-	-	0.003	0.003	Nb+V≥0.13%
空心型材①ⓐ	Maximum Value	0.16	0.5	1.5	0.025	0.025	0.1	0.1	Nb+V≥0.13%

55F Mechanical Properties

product	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Impact Energy Absorption KV2 J
Thick Plates, Strips, Wide Flat Bars①②	550~700	t≤16mm: ≥450 16＜t≤25mm: ≥430 25＜t≤40mm: ≥415	Gauge length L0=80mm: ≥19 Gauge length L0=200mmⓐ: ≥17 Gauge length L0=5.65 √So: ≥19	-60°C: ≥27(t≤40*)
Hollow sections	550~700	t≤16mm: ≥450 16＜t≤25mm®: ≥430	Gauge L0=5.65 √So: ≥19	-60°C: ≥27(t≤25)

Approximate Comparison Table Structural, pressure vessel and engineering steels

International Organization for Standardization	Germany	France	European Standard		United Kingdom
ISO	DIN EN/DIN	NF EN/NF	EN	Numerical Grade	BS EN/BS
E460	TStE460V	E460T E460TFP S460T	S460QL FeE460VKT①	1.8906	55F

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