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Seamless cold drawn low carbon steel heat exchanger and condenser


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

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

50.8~<63.5

+0.25

63.5~<76.2

+0.30

76.2101.6

+0.38

>101.6190.5

+0.38-0.64

>190.5228.6

+0.38-1.14