According to JIS G3106 standard, SM490 HSLA steel has three grades: SM490A, SM490B and SM490C. Their main difference lies in the carbon contents. Compared with SM490B steel, JIS SM490C HSLA steel plates need to be done low temperature impacting test under 0 centigrade with the minimum impact energy value at 47J.
JIS G3106 SM490C HSLA steel plates chemical composition:
|Grade||Thickness (mm)||C max||Si max||Mn||P max||S max|
JIS G3106 SM490C HSLA steel plates mechanical properties:
|Grade||Yield strength Mpa (min.)||Tensile strength|
The common heat treatment for JIS G3106 SM490C HSLA steel plates include normalizing, tempering, quenching and tempering, control rolling and colling, etc. If the end user needs heat treatment for SM490C plate, he should issue the term in PO when ordered.
JIS G3106 SM490C HSLA steel plates are generally used to build bridges, ships, vehicles, petroleum storage tanks, containers and other welding components.