• Follow us
JIS G3472 Welded Carbon Steel Tubes For Automobile Structural Purposes

JIS G3472 Welded Carbon Steel Tubes For Automobile Structural Purposes

This japanese industrial standard specifies the electric resistance welded ewelded carbon steel tubes,hereinafter referred to as the tubes,used for automobiles.The applicable range of dimension of the tubes shall be as follows outside diameter:15.0mm and over,up to and including 127.0mm wall thickness:1.0mm and over,up to and including 7.0mm.

Description

JIS G3472 Electric resistance welded carbon steel tubes


Chemical composition


DesignationChemical composition %
CSiMnPS

STAM 290GA

STAM 290GB

0.12 max0.35 max0.60 max
0.035 max
0.035 max
STAM 340G

0.20 max

0.35 max0.60 max0.035 max0.035 max
STAM 390G0.25 max0.35 max0.30-0.900.035 max0.035 max

STAM 440G

STAM 440H

0.25 max0.35 max0.30-0.900.035 max0.035 max

STAM 470G

STAM 470H

0.25 max0.35 max0.30-0.900.035 max0.035 max

STAM 500G

STAM 500H

0.30 max0.35 max0.30-1.000.035 max0.035 max
STAM 540H0.30 max0.35 max0.30-1.000.035 max0.035 max

Mechanical properties


GradeDesignation


Flaring test

Tensile strength N/mm² min

Yield point or

 proof stress N/mm² min

Elongation %

 No.1 test piece No.2 test piece 

longitudinal 

direction  min

Size of flared 

bell portion (D:outside 

diameter of 

tube)

Grade GSTAM 290GA
294177401.25D
STAM 290GB294
177351.20D
STAM 340G343196351.20D
STAM 390G392235301.20D
STAM 440G441304251.15D
STAM 470G471324221.15D
STAM 500G500353181.15D
STAM 440H441353
201.15D
STAM 470H471412181.10D
STAM 500H500431161.10D
STAM 540H539481131.05D


Hot Tags: JIS G3472 Welded Carbon Steel Tubes For Automobile Structural Purposes China, manufacturers, suppliers, factory, high quality, buy
Related Products

Feedback