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Seamless carbon steel boiler tubes for high pressure

 

 

 

Standard of implementation: ASTM A192/ A192M/ASME SA-192/ SA-192M

Application: the manufacture of boiler water cooling wall, coal heater, steam heater and steam pipe

Major grade: SA192, etc. through consultation, can also supply other special grade of steel pipe

Chemical composition and mechanical properties:

Standard

Steel grade

Chemical constituents (%)

Mechanical properties

Elongation (%)

C

Mn

Si

P.S

Tensile strength( MPa )

Yield strength( MPa )

ASTMA192

A192

0.06 ~ 0.18

0.27 ~ 0.63

≤ 0.25

≤ 0.035

≥ 325

≥ 180

≥ 35

Hardness requirements:

Brinell hardness

Hardness of the Luo

S5.1mm

S5.1mm

137 HB

77 HRB

Dimensional tolerance:

Type of steel tube

Outside diameter(D

Wall thickness(S

Outside diameter(mm

Deviation(mm

Outside diameter(mm

Deviation(mm

Hot rolling tube

101.6

+0.4-0.8

76168.3

+28%0

101.6168.3

+0.4-1.2

Cold drawn pipe

25.4

+0.10

38.1

+20%0

25.438.1

+0.15

38.1~<50.8

+0.20

38.1

+22%0