JIS G3472 ERW Welded Automobile Structural Tubes

JIS G3472 ERW Welded Automobile Structural Tubes

1.OD:15.0mm TO 127.0mm
2.WT:1.0mm TO 7.0mm
3.Grade:STAM290GA, STAM 290GB, STAM 340G, STAM 390G, STAM 440G, STAM 470G, STAM 500G, STAM 440H, STAM 470H, STAM 500H, STAM 540H ERW
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Product Details

JIS G3472,This Japanese Industrial Standard Specifies the electric resistance welded (ERW) carbon steel tubes used for automobiles
Outside diameter:15.0mm up to and including127.0mm
Wall thickness:1.0mm up to and including 7.0mm

Grade:JIS G3472 STAM290GA, STAM 290GB, STAM 340G, STAM 390G, STAM 440G, STAM 470G, STAM 500G, STAM 440H, STAM 470H, STAM 500H, STAM 540H ERW automobile structure steel tube

Grade and Designation:

Grade

Designation

Reference Traditional symbol

Remark

Grade G

STAM 290GA

STAM 30GA

Tubes used for general parts of automobile   structures

STAM 290GB

STAM 30GB

STAM 340G

STAM 35G

STAM 390G

STAM 40G

STAM 440G

STAM 45G

STAM 470G

STAM 48G

STAM 500G

STAM 51G

Grade H

STAM 440H

STAM 45H

Tubes used for, among parts of automobile

 structures, 

those of which yield strength is particularly

STAM 470H

STAM 48H

STAM 500H

STAM 51H

STAM 540H

STAM 55H


Chemical composition

Designation

Chemical Composition %

C

Si

Mn

P

S

STAM 290GA

0.12 max.

0.35max.

0.60 max.

0.035 max.

0.035 max.

STAM 290GB

STAM 340G

0.20 max.

0.35 max.

0.60 max.

0.035 max.

0.035 max.

STAM 390G

0.25 max.

0.35 max.

0.30-0.90

0.035 max.

0.035 max.

STAM 440G

0.25 max.

0.35 max.

0.30-0.90

0.035 max.

0.035 max.

STAM 440H

STAM 470G

0.25 max.

0.35 max.

0.30-0.90

0.035 max.

0.035 max.

STAM 470H

STAM 500G

0.30 max.

0.35 max.

0.30-1.00

0.035 max.

0.035 max.

STAM 500H

STAM 540H

0.30 max.

0.35 max.

0.30-1.00

0.035 max.

0.035 max.

Applications:

Automobile structural purposes

JIS G3472 Electric Resistance Welded Carbon Steel Tubes for Automobile Structural Purpose 

Welded  Automobile Structural Tubes

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