BOILER AND HEAT EXCHANGER STEEL TUBE JIS3461,3462

Categories:

STANDARD:
JIS G3461
JIS G3462

APPLICATION:
It is used for boiler and heat exchanger inside and outside tube

Main Steel Tube Grades:
STB340、STB410、STBA22、STBA23.
Other grades can also be provided after consulting with customers.

Mechanical Properties:

Standard

Grade

Tensile Strength

Yield Strength

Elongation

JIS G3461

STB340

≥340

≥175

≥35

STB410

≥410

≥255

≥25

JIS G3462

STBA22

≥415

≥210

≥30

STBA23

≥415

≥210

≥30

Chemical Composition:

Standard

Grade

Chemical Composition

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

/

/

/