Product

Q345B Boiler Tube



Implementation Standards

ASTM A 106M、ASTM A 192M、ASTM A213M、GB/T 5310、JIS G3461


Applicable Scope

General boiler tubes are mainly used to make water wall tubes, boiling water pipes, superheated steam pipes, superheated steam pipes used for locomotive boilers, big and small smoke pipes and arch brick pipes, etc..

The boiler seamless steel pipe is mainly used to manufacture high-pressure and ultrahigh pressure boiler superheater, reheater pipe, main steam pipe etc..



Chemical Composition

Steel Grade

C

Si

Mn

S

P

Cr

Mo

Other

Standard

Steel

max

ASTM

A 192M

ASME

SA-192M

A192

SA-192

0.06

~

0.18

≤0.25

0.27

~

0.63

0.020

0.025




ASTM

A106M

ASME

SA-106

A 106B

SA-106B

≤0.30

≥0.10

0.29

~

1.06

0.020

0.025




A 106C

SA-106C

≤0.35

≥0.10

0.29

~

1.06

0.020

0.025




ASTM

A213M

ASME

SA-213M

A213

T11

SA-213

T11

0.05

~

0.15

0.50

~

1.00

0.30

~

0.60

0.020

0.025

1.00

~

1.50

0.44

~

0.65


A213

T12

SA-213

T12

≤0.15

≤0.50

0.30

~

0.61

0.020

0.025

0.80

~

1.25

0.44

~

0.65


JIS G3461

STB 340

≤0.18

≤0.35

0.30

~

0.60

0.020

0.025




GB 5310

20G

0.17

~

0.23

0.17

~

0.37

0.35

~

0.65

0.015

0.025








Mechanical Property

Standard

Grade

Tensile Strength

Yield Strength

Not less than

Elongation

Not less than

Impact Energy

Not less than

Hardness

Not greater than

ASTM

A106M

ASME

SA-106

A 106B

SA-106B

≥415

240

30



A 106C

SA-106C

≥485

275

30



ASTM

A 192M

ASME

SA-192M

A192

SA-192

≥325

180

35


77HRB(137HBW)

ASTM

A213M

ASME

SA-213M

A213

T11

SA-213

T11

≥415

205



85HRB(163)HBW

A213

T12

SA-213

T12

≥415

205



85HRB(163)HBW

JIS G3461

STB 340

≥340

175

35



GB 5310

20G

410~550

245

Longitudinal 24 transverse 22

Longitudinal 24 transverse 22


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ADD:Wuxi Liang Xi District Jinshan North Industrial Park
TEL:+86-0510-8307-4477
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E-mail:kikoquan@mingshangsteel.com