Name: China Customized SM520 Low-alloy Steel Plate Manufacturers Suppliers Factory - Free Sample - Gnee Steel
Brand: GNEE
SKU: 231351436

Description

Technical Parameters

SM520 Low-alloy Steel plate

SM520 steel plate is the Japanese industrial standard welded structural rolled steel, belongs to the Japanese standard low alloy high-strength structural steel plate.SM520 steel plate grades SM520B,SM520C, SM520 steel plate heat treatment, if required, the steel can be normalized, quenched and tempered or tempered heat treatment. In addition, according to the agreement between the supply and demand sides, heat treatment such as controlled rolling and controlled cooling can also be carried out.

SM520 low alloy steel material chemical composition

Grade	Chemical Composition
Grade	C max	Si max	Mn	P max	S max
SM520B	0.20	0.55	1.6 max	0.035	0.035
SM520C	0.20	0.55	1.6 max	0.035	0.035

SM520 high strength low alloy hsla steel plate mechanical property

Symbol	Yield point or proof stressN/mm2 (min)		Tensile strengthN/mm2	Elongation
	Thickness of steel mm		Thickness of steel mm	thinckness	Test piece	% min
	16 or under	Over 16-40	100 or under
SM520B SM520C	365	355	520-640	<5	NO.5	19
				≥5 <16	NO.1A	15
				≥16 <50	NO.1A	19

Grade	Test temperature °C	Charp Absorption Energy J (min)	Test piece
SM520B	0	27	No.4 in rolling direction
SM520C	0	47	No.4 in rolling direction

SM520 high strength low alloy structural steel plate surface quality

SM520 high strength low alloy steel plate surface does not allow the existence of cracks, bubbles, scars, folding and doping and other defects, such as the above surface defects, allowed to clean up, clean up the depth from the steel plate practice standards, shall not exceed the thickness of the steel plate tolerance of half, and should ensure that the minimum thickness of steel plate, defects should be cleaned up at the smooth and angular, the steel plate shall not be delaminated, and other defects are permitted to exist, the depth of the steel plate from the steel plate practice standards, shall not exceed the thickness of the plate tolerance half, and should ensure that defects in the thickness of the thickness of the plate is not less than the thickness of steel plate allowable.