carbon steel, buy High Strength Steel Tube, Contruction Materials on China Suppliers Mobile

Product Details

SMC is a professional manufacture of high strength steel, we provide Q390, Q420, Q460, Q500, Q550, Q620 and Q690 series, which are all highly acclaimed by our international customers due to its durability and similar other attributes.

1. Available size: in plate or coil
2. Thickness: 6-120mm
3. Width: 1500-3600mm
4. Length: 6000-18000mm

Specification of High Strength Steel Plate:
1. Chemical Composition

Steel Grade	Class	Chemical Composition
		C	Mn	Si	P	S	V	Nb	Ti	Cr	Ni	Mo	B
		≤
Q420	C	0.20	1.00-1.60	0.55	0.035	0.035	0.10	0.06	0.20	0.30	0.70	0.20	-
	D	0.18			0.030	0.030
	E	0.18			0.025	0.025
Q460	C	0.20	1.00-1.60	0.55	0.035	0.035	0.10	0.06	0.20	0.30	0.70	0.20	-
	D	0.18			0.030	0.030
	E	0.18			0.025	0.025
Q500	D	0.18	1.00-1.60	0.55	0.030	0.030	0.10	0.06	0.20	0.60	1.00	0.40	0.003
	E	0.18			0.025	0.025
Q550	D	0.18	1.00-1.60	0.55	0.030	0.030	0.10	0.06	0.20	0.60	1.00	0.60	0.003
	E	0.18			0.025	0.025
Q620	D	0.18	1.00-1.60	0.55	0.030	0.030	0.10	0.06	0.20	0.80	1.20	0.60	0.003
	E	0.18			0.025	0.025
Q690	D	0.18	1.00-1.60	0.55	0.030	0.030	0.10	0.06	0.20	1.20	1.50		0.003
	E	0.18			0.025	0.025

2. Mechanical Property

Grade	Class	Yield Strength		Tensile Strength (MPa)	Elongation(&)	Impact Energy (J)			Cold Test
Grade	Class	Yield Strength		Tensile Strength (MPa)	Elongation(&)	0°C	-20°C	-40°C	Cold Test
Q420	C D E	420	400	520-670	18	40	40	27	d=3a
Q460	C D E	460	440	550-710	17	40	40	27	d=3a
Q500	D E	500	480	610-770	16	-	40	27	d=3a
Q550	D E	550	530	670-830	16	-	40	27	d=3a
Q620	D E	620	600	720-890	15	-	40	27	d=3a
Q690	D E	690	670	770-940	14	-	40	27	d=3a

Application of High Strength Structural Steel Plate
- Construction field
- Ships building industry
- Petroleum and Chemical industry
- Electricity industry
- Food processing and medical industry
- Boiler heat exchanger, machinery and hardware fields, etc

Feature of High Strength Structural Steel Plate
- High Quality
- High Strength
- Steady structure
- Low cost and high benefit

Packaging of High Strength Steel:

All our products are guaranteed to be packed, stored and transported according to the highest international regulations. We care deeply about the quality of our products down to even the smallest detail. We wrap all stainless steel products with anti-rust paper and steel rings to prevent damage. Our storage racks are made of wood and other kinds of metals are placed in other places, far from the stainless steel. Any unwanted chemical reaction can be prevented. Identification labels are tagged according to standard specification or customer's instructions. Special packing is also available as per customer's requirement.