Galvanized or coated Structural steel H beam H type beam (IPE,UPE,HEA,HEB)

Standard	Grade	Method of Deoxidization	Chemical Components%
			C≤	Si≤	Mn≤	P≤	S≤	Nb≤	V≤	Ti≤	Als≥
(Chinese Standard)	Q235B	Z	0.2	0.35	1.4	0.045	0.045
	Q345B	Z	0.2	0.5	1.7	0.035	0.035	0.07	0.2	0.2
	Q420B	Z	0.2	0.5	1.7	0.035	0.035	0.07	0.2	0.2
	Q420C	Z	0.2	0.5	1.7	0.03	0.03	0.07	0.2	0.2	0.015
	Q460C	Z	0.2	0.6	1.8	0.03	0.03	0.11	0.2	0.2	0.015
JIS Standard	SS400	Z				0.05	0.05
	SS540	Z			1.6	0.04	0.04
EN Standard	S235JR	Z	0.17		1.4	0.035	0.035
	S235JO	Z	0.17		1.4	0.03	0.03
	S235J2	Z	0.17		1.4	0.025	0.025
	S275JR	Z	0.21		1.5	0.035	0.035
	S275JO	Z	0.18		1.5	0.03	0.03
	S275J2	Z	0.18		1.5	0.025	0.025
	S355JR	Z	0.24	0.55	1.6	0.035	0.035
	S355JO	Z	0.2	0.55	1.6	0.03	0.03
	S355J2	Z	0.2	0.55	1.6	0.025	0.025
(ASTM Standard)	A36	Z	0.25	0.4		0.04	0.05
	A572-50	Z	0.23	0.4	1.35	0.4	0.05	0.05	0.15	0.15
	A572-60	Z	0.26	0.4	1.3	0.04	0.05	0.05	0.15	0.15
shipbuilding	A	Z	0.21	0.5	≥2.5C	0.035	0.035
	B	Z	0.21	0.35	0.8~1.2	0.035	0.035

 

Standard	Grade	Mechanical Property
		(N/MM2)  Tensile Strength	(N/MM2) Yield Strength		Percentage Elongation after  Fracture	Impact Power
			≤16	16~40		20℃	0℃	-20℃
(Chinese Standard)	Q235B	370-500	≥235	≥225	≥26	≥27
	Q345B	470-630	≥345	≥325	≥21	≥34
	Q420B	520-680	≥420	≥400	≥18	≥34
	Q420C	520-680	≥420	≥400	≥19		≥34
	Q460C	550-720	≥460	≥440	≥17		≥34
JIS Standard	SS400	400-510	≥245	≥235	≥23
	SS540	≥540	≥400	≥390	≥17
EN Standard	S235JR	360-510	≥235	≥225	≥26	≥27
	S235JO	360-510	≥235	≥225	≥26		≥27
	S235J2	360-510	≥235	≥225	≥24			≥27
	S275JR	410-560	≥275	≥265	≥23	≥27
	S275JO	410-560	≥275	≥265	≥23		≥27
	S275J2	410-560	≥275	≥265	≥21			≥27
	S355JR	470-630	≥355	≥345	≥22
	S355JO	470-630	≥355	≥345	≥22
	S355J2	470-630	≥355	≥345	≥22
(ASTM Standard)	A36	400-550	≥250	≥250	≥23
	A572-50	≥450	≥345	≥345	≥21
	A572-60	≥520	≥415	≥415	≥18
shipbuilding	A	400-520	≥235	≥235	≥22
	B	400-520	≥235	≥235	≥22		≥27