Under Janpanese steel standard Jis g3106,SM490 has three different grades,aush as SM490A,SM490B and SM490C,the main difference is the carbon contains for these steel grades.Comparing with SM490B,steel plate SM490C have to be done low temperature impacting test under 0 centigrade with the minimum impact energy value at 47J,SM490B with 27J for the sample test plate.If the end users need do heat treatment for structural steel plate SM490C under Normalized,Quenched and Tempered,Tempered,they should issued this term in PO when ordered.

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Mechnical property for SM490C Structural steel

Thickness (mm)
SM490C	≤ 16	> 16 ≤ 40	> 40 ≤ 75	> 75 ≤ 100	> 100 ≤ 160	> 160
Yield strength (≥Mpa)	325	315	295	295	285	275
	≤ 100					> 100
Tensile strength (Mpa)	490-610					400-610

Chemical composition for SM490C Structural steel (Ladle Analysis Max%)

Main chemical elements composition of SM490C
Thickness(mm)	C	Si	Mn	P	S
T≤50	0.18	0.55	1.60	0.035	0.035
50<T	0.18

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Shandong Chengshun Metal Materials Co., Ltd. is located in Jinan City, Shandong Province. It is a comprehensive company dealing in high-quality steel products, with a superior geographical location and very convenient transportation. The company has a complete and scientific quality system, and has been recognized by the industry for its integrity, strength and product quality.

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Hight Strength Low Alloy Steel