JIS G3106 SM490B steel plate manufacturer

Gangsteel export JIS G3106 SM490B steel plate welded structure material. JIS G3106 Grade SM490B Stock steel material supplier, the most competitive price.

Adopt standard: JIS G3106-2004

Related Grade: JIS G3106 SM490B properties, JIS G3106 SM490B Chemical, JIS G3106 SM490B material, JIS G3106 SM490B specification, JIS G3106 SM490B chemical composition

SM490B Steel Plate

SM490A, SM490B and SM490C steel grade is a low carbon, welding structural steel. With this low carbon equivalent, it process good cold forming property. SM490A, SM490B and SM490C  steel plates usual supplied in Hot rolled or control rolled delivery condition.


SM490A,SM490B and SM490C are different in carbon element. Others are the same. SM490C carbon is 0.18%, SM490B is 0.18-0.20% and SM490A is 0.20-0.22%.

The equal steel grade is JIS SM570, A572 Gr.50, EN S355JR, ST 52-3 and so on

Gangsteel exported SM490B to many largest factory in Korea country and have much experience in Super Thick steel plate in UT S2E3, S1E2 and S0E1 technical to promise the inner quality of steel plate.

Besides that, Gangsteel also supply SM490B/B/C, SM490YA/YB, and SM490A/B/C steel grade too. If you need in SM490B, Please contact Gangsteel to get the competitive price soon.

JIS G3106 SM490B steel plate Chemical Requirements

Carbon, max % Manganese, max % Silicon, max % Sulfur max %
50mm or under
50mm – 100mm
0.18
0.20
Product Analysis 1.60   Product Analysis 0.55    All thick 0.035
Phosphorus %            
All thick 0.035            

JIS G3106 SM490B steel plate Tensile Requirements

Mechanical Property of SM490B steel grade SM490B steel grade
Tensile strength, kis [MPa] 8mm-160mm Yield strength, min, kis [MPa] 8mm-16mm
16mm-40mm
40mm-75mm
75mm-100mm
100mm-160mm
Elongation under in [16 mm], min, %
Elongation above in [16 mm], min, %
Tensile strength, kis [MPa] [490-610] Yield strength, min, kis [MPa] [325] [315] [295] [325] [285] 17 23

Gangsteel had many stocks in alloy steel of SM490B steel plates. If you need JIS G3106 SM490B steel plate, please click Gangsteel stock.

JIS G3106 SM490B steel plate manufacturer