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  • ASTM A179 Heat exchanger Seamless Steel Tubes

ASTM A179 Heat exchanger Seamless Steel Tubes

This specification covers for several grades of carbon and alloy steel mechanical tubing.

PRODUCT DESCRIPTION

Standard: ASTM A179/(ASME SA179)

This specification covers for several grades of carbon and alloy steel mechanical tubing.

Application of ASTM A179/SA179 Seamless Cold Drawn Low Carbon Steel Heat Exchanger And Condenser Tubes

Pipe ordered under this specification is for tubular heat exchangers, condensers, and similar heat transfer apparatus

Manufacturing Process of ASTM A179/SA179 Seamless Cold Drawn Low Carbon Steel Heat Exchanger And Condenser Tubes

The tubes shall be made by the seamless process and shall be cold drawn.

Details of ASTM A179/SA179 We can supply:

Manufacture:Seamless process: cold drawn only

Size: O.D.: 10.0~76mm W.T.: 2~10mm

Length: 6M or specified length as required.

Ends: Plain End, Beveled End.

Chemical Composition of ASTM A179/SA179:

Grade and Chemical Composition (%)

Chemical Composition C Mn P≤S≤Si≤
0.06-0.180.27-0.630.0350.0350.25


Dimension tolerance of ASTM A179/SA179:

Tolerance of OD and W.T(SA-450/SA-450M):

OD In (mm) +-WT In(mm)+ -
<1(25.4)0.100.10≤1.1/2(38.1)20%0
1~1.1/2(25.4~38.1)0.150.15>1.1/2(38.1)22%0
>1.1/2~<2(38.1~50.8)0.200.20


2~<2.1/2(50.8~63.5)0.250.25


2.1/2~<3(63.5~76.2)0.300.30


3~4(76.2~101.6)0.380.38


>4~7.1/2(101.6~190.5)0.380.64


>7.1/2~9(190.5~228.6)0.381.14



Heat treatment:

Tubes shall be heat treated after the final cold drawn pass at a temperature of 1200°F or higher.

Mechanical Tests Required:

a. Flattening test

b. Flaring test

c. Flange test

d. Hardness test

e. Hydro-static test

Ordering information:

f. Quantity (feet, meters, or number of lengths)

g. Name of material (seamless tubes)

h. Manufacture(cold-drawn)

i. Size (outside diameter and minimum wall thickness )

j. Length (specific and random)

k. Optional requirements

l. Test report required

m. Specification number

Appearance for ASTM A179/SA179

A sufficient number of visual surface imperfections to provide seasonable assurance that they have been properly evaluated with respect to depth. The defect shall be removed or cut off within the limits of requirements on length. The finished pipe shall be reasonably straight.

Packing for ASTM A179/SA179

a. Bare pipe or oil coating ( customized), if pickling or shot blasting or both, shall be specifically stated in the order;

b. In bundles with two cotton slings;

c. Both ends with end protectors;

d. Plain end, bevel end

e. Marking. (shall include the name and order number of the purchaser)