ASTM A179 Boiler and A179 Heat Exchanger Seamless Tube.

Material Grade: ASTM A179.

Size: 25.4mm Outer Diameter 2.77mm Wall Thickness.

Surface Treatment: Black Painting/Oil Coating.

Application: Used in Boiler and Heat Exchanger.

Packing: In Bundles Case or as Your Requirement.

ASTM A179 Seamless U-Bend Boiler Heatexchanger Steel Tubes

ASTM A179 Seamless Cold Drawn Low Carbon Steel Heat Exchanger Tubes and Condenser Tubes
Seamless Cold-Drawn Low-Carbon Steel Heat-Exchanger Tubes and Condenser Tubes

Keywords: ASTM A179 Seamless Boiler Steel Tubes, ASTM A179 U-Bend Boiler Tubes, Heat Exchanger U Tube

Applications:

For Boilers,

Superheaters,

Heat-Exchangers,

Condensers

Heat treatment  After the last cold drawing, heat treatment at not less than 650℃
Hardness test HRB≤72, the sampling requirement is to take samples of two steel pipes from each batch of steel pipes for testing. (The so-called batch refers to all steel pipes with the same nominal diameter and wall thickness produced from the same furnace without being cut. If it is a batch furnace, the batch only refers to the same furnace number, the same size, and the same furnace heat treatment If it is a continuous furnace, the batch should include all the steel pipes with the same heat number, the same size and the same temperature, the same heating time and the same furnace speed in the same heat treatment furnace.)
Flattening test Method According to ASTM A450, sampling is for each batch of steel pipes or the remaining part of each batch of steel pipes and each of two steel pipes is cut and tested. (A batch of 250 tubes)
Flaring performance Method According to ASTM A450, sampling is for each batch of steel pipes or the remaining part of each batch of steel pipes and each of two steel pipes is cut and tested. (A batch of 250 tubes)
Flange test  For S/D<10% steel pipe, crimping can be used instead of flaring. Method According to ASTM A450, sampling is for each batch of steel pipes or the remaining part of each batch of steel pipes and each of two steel pipes is cut and tested. (A batch of 250 tubes)
Hydrostatictest If the demander agrees, the water pressure can be replaced without damage. Non-destructive inspection is in accordance with ASTM A450.