Q275D - GB /T 34199-2017

Grade	Q275D
Corresponding Standard	GB /T 34199-2017 Hot-rolled H section steel for electrified railway pillars
Classification	Carbon Steel

Q275D Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S
Minimum Value	-	-	-	-	-
Maximum Value	0.18	0.35	1.5	0.03	0.025

Q275D Mechanical Properties

thickness t mm	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Impact Energy Absorption KV2 J
t≤40	410~560	t≤16: ReH≥275 16＜t≤40: ReH≥265	A: ≥23	-20°C: ≥27

Approximate Comparison Table Carbon Structural Steel and Engineering Steel

China		Japan	United States	International Organization for Standardization	European Standard
GB	ISC	JIS	ASTM/AISI	ISO	EN	Numerical Grade
Q275D (GB/T 700-2006)	U12759	SM490B (JIS G3106:2004)	Gr.70[290] (ASTM A573/A573M:2000)	E275D (ISO 630:1995)	S275J2 (EN 10025-2:2004)	1.0145

Q275D Corresponding Standards(Same grade name, different standards)

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