Product Details

Product Description

Widely used in various building structures, bridges, vehicles, brackets, machinery, etc., for example, the industrial structure of the steel bearing bracket,steel piles and underground, engineering supporting structure, petro chemical and power and other industrial equipment structure, shipbuilding, machinery manufacturing frame structure,train, car,tractor beam bracket, port conveyors,high speed shutter stents.

I Beam & IPE

Production description

Standard:JB,EN,JIS
Grade:GB9787-88,Q235B,EN10025 S235JR,G3101 SS400/SS490/SS540
Packing:Export packing, in bundles

Chemical Composition of GB (Chinese Standard)

Grade	Grade	C (%)	Mn (%)	Si	P	S	V (%)	Nb (%)	Ti (%)
				≤(%)
Q195	-	0.06-0.12	0.25-0.50	0.30	0.050	0.045	-	-	-
Q215	A	0.09-0.15	0.25-0.55	0.30	0.050	0.045	-	-	-
	B				0.045		-	-	-
Q235	A	0.14-0.22	0.30-0.65	0.30	0.050	0.045	-	-	-
	B	0.12-0.20	0.30-0.70		0.045		-	-	-
Q345	A	≤0.20	1.00-1.60	0.55	0.045	0.045	0.02 -0.15	0.015 -0.060	0.02 -0.20
	B				0.040	0.040

Mechanical Properties of GB (Chinese Standard)

Grade	Yield Strength		Tensile Strength (Mpa)	Elongation		180°Cold-Bend Test r-Pin Diameter a-Thickness		Charpy V-notch Impact Test (Longitudinal)
Grade	Thickness (mm)	σS≥ (Mpa)	Tensile Strength (Mpa)	Thickness (mm)	δ ≥(%)	Longitudinal	Transverse	Temperature ºC	AKV/J ≥
Q195	≤16	195	315-430	≤16	33	0	0.5a	-	-
	>16-40	185		>16-40	32
	>40-60	-		>40-60	--
	>60-100	-		>60-100	--
	>100-150	-		>100-150	--
	>150	-		>150	--
Q215	≤16	215	330-450	≤16	31	0.5a	a	20	27
	>16-40	205		>16-40	30
	>40-60	195		>40-60	29
	>60-100	185		>60-100	28	1.5a	2a
	>100-150	175		>100-150	27	2a	2.5a
	>150	165		>150	26	2a	2.5a
Q235	≤16	235	375-500	≤16	26	a	1.5a	20	27
	>16-40	225		>16-40	25			20
	>40-60	215		>40-60	24			0
	>60-100	205		>60-100	23	2a	2.5a	0
	>100-150	195		>100-150	22	2.5a	3a	-20
	>150	185		>150	21	2.5a	3a	-20
Q345	≤16	345	470-630	21		-	-	20	34
	>16-35	325
	>35-50	295
	>50-100	275