Specifications: diameter: 320 to 127 mm thickness: 0.4 to 12.7 mm Length: 6 m above, and, in accordance with customer demand, supply and other specifications of steel pipe

JIS G3461,JIS G3462 Seamless Pipe for Boiler Heat exchanger


JIS G3461, JIS G3462, Cold Drawn Seamless Steel tube for Boiler & Heat exchanger  

Standard: JIS G3461,JIS G3462

 

Grade: JIS G3461 STB 35, STB 42, STB 52. Boiler Tubes JIS G3462 STBA12 STBA13
OD: 15.9-139.8 mm
Thickness: 1.2-18.0mm
Length:39.34'/12M.max

Usage: Steel Pipes for Low Temperature Service.

 JIS G3461 pipe, JIS G3462 pipe

Mechanical Properties:

Standard

Steel Grade

Tensile Strength(MPa)

Yield Point(MPa)

Elongation(%)

JIS G3461

STB340

≥340

≥175

≥35

STB410

≥410

≥255

≥25

JIS G3462

STBA22

≥415

≥210

≥30

STBA23

≥415

≥210

≥30

Chemical Properties

Standard

Steel Grade

Chemical Coposition

C

Si

Mn

P

S

Cr

Mo

Cu

Ni

V

JIS G3461

STB340

≤0.18

≤0.3

0.30-0.60

≤0.035

≤0.035

/

/

/

/

/

STB410

≤0.32

≤0.35

0.30-0.80

≤0.035

≤0.035

/

/

/

/

/

JIS G3462

STBA22

≤0.15

≤0.50

0.30-0.60

≤0.035

≤0.035

0.80-1.25

0.45-0.65

/

/

/

STBA23

≤0.15

0.50-1.00

0.30-0.60

≤0.030

≤0.030

1.00-1.50

0.45-0.65

/

/

/

JIS G3461 Boiler Heat exchanger Seamless Pipe

JIS G3462 Boiler Heat exchanger Pipe

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