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Seamless cold drawn low carbon steel heat

seamless cold drawn carbon steel pipe1

release time:2018-03-16 09:53:28
seamless cold drawn carbon steel pipe1

 

 

Standard of implementation: ASTM A179/ A179M/ASME SA-179/ SA-179M

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

Major grade: SA179, 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

P.S

Tensile strength (MPa)

Yield strength(MPa)

ASTMA179

A179

0.06 ~ 0.18

0.27 ~ 0.63

≤ 0.035

≥ 325

≥ 180

≥ 35

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

76~168.3

+28%~0

>101.6~168.3

+0.4~-1.2

Cold drawn pipe

<25.4

+0.10

≤38.1

+20%~0

25.4~38.1

+0.15

>38.1~<50.8

+0.20

>38.1

+22%~0

50.8~<63.5

+0.25

63.5~<76.2

+0.30

76.2~101.6

+0.38

>101.6~190.5

+0.38~-0.64

>190.5~228.6

+0.38~-1.14