Q195 vs Q215, Q235 and Q275 Steel

Chinese GB Standard Carbon Structural Steel Specification

Here we show the difference between Q195 vs Q215, Q235 & Q275, these steel series all belong to Chinese standard carbon structural steel, the lising below shows the difference of chemical composition and mechanical properties.

		Chemical Composition %
Steel Series	Steel Grade	C  (≤)	Si (≤)	Mn (≤)	P (≤)	S (≤)
Q195	Q195	0.12	0.30	0.50	0.035	0.040
Q215 Series	Q215A	0.15	0.35	1.20	0.045	0.050
	Q215B	0.15	0.35	1.20	0.045	0.045
Q235 Series	Q235A	0.22	0.35	1.40	0.045	0.050
	Q235B	0.20	0.35	1.40	0.045	0.045
	Q235C	0.17	0.35	1.40	0.040	0.040
	Q235D	0.17	0.35	1.40	0.035	0.035
Q275 Series	Q275A	0.24	0.35	1.50	0.045	0.050
	Q275B	0.21	0.35	1.50	0.045	0.045
	Q275C	0.20	0.35	1.50	0.040	0.040
	Q275D	0.20	0.35	1.50	0.035	0.035

	Mechanical Properties (MPa)
Grade	Yield Strength	Tensile Strength
Q195	195	315-430
Q215	215	335-450
Q235	235	370-500
Q275	275	410-540

1 N/mm2 = 1 Mpa

Tags: Q195 vs Q215, Q195 vs Q235, Q195 vs Q275