SG250C - ISO 630-2-2011

Grade	SG250C
Corresponding Standard	ISO 630-2-2011 Structural Steels - Part 2: Technical Delivery Conditions for Structrual Steels for General Purposes
Classification	Carbon Steel

SG250C Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S
Minimum Value	-	-	-	-	-
Maximum Value	0.2	0.55	1.5	0.04	0.05

◎ There is no requirement for Cu、Ni、Cr、Mo、V、Nb、V+Nb、Ti, but the amount of these elements shall be determined for each heat and shall be reported in the inspection document

SG250C 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≤16	400~560	≥250	L0=5.65√S0: ≥18* L0=50mm: ≥23* L0=200mm: ≥20*	0°C: ≥27
16＜t≤40	400~560	≥240	L0=5.65√S0: ≥18* L0=50mm: ≥23* L0=200mm: ≥20*	0°C: ≥27
40＜t≤100	400~560	≥230	L0=5.65√S0: ≥18* L0=50mm: ≥23* L0=200mm: ≥20*	0°C: ≥27
100＜t≤200	400~560	≥220	L0=5.65√S0: ≥18* L0=50mm: ≥23* L0=200mm: ≥20*	0°C: ≥27
t＞200	400~560	≥210	L0=5.65√S0: ≥21* L0=50mm: ≥26* L0=200mm: ≥24*	0°C: ≥27◎

SG250C Corresponding Standards(Same grade name, different standards)

1	ISO 630-2-2011
	SG250C
2	ISO 630-2-2021
	SG250C

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