Zhangjiagang Bonded Area Yaxin Precision Tube Co., Ltd. 

Zhangjiagang Bonded Area Henglong Steel Tube Co., Ltd.

Steel Tubing for Automotive Powertrain, Shock Aborber, Steering 

And Steel Tubing for Heat Exchanger, Superheater, Reheater, Boiler, Mechanical

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Round Seamless Steel Heat Exchanger Tubes Not Exceeding 72HRB

Round Seamless Steel Heat Exchanger Tubes Not Exceeding 72HRB

Round Seamless Steel Heat Exchanger Tubes Not Exceeding 72HRB

Product Details:

Place of Origin: China
Brand Name: HENGLONG
Certification: ISO9001, OHSAS18001, ISO14001, PED97/23/EC

Payment & Shipping Terms:

Price: Negoniation
Packaging Details: Wooden case
Delivery Time: 20-30 days
Payment Terms: L/C, T/T
Supply Ability: 6000 metric tons per year
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Detailed Product Description
Material: Carbon Steel Type: Seamless Steel Tube
Process: Cold Drawn Tube Shape: Round
Application: Heat Exchanger

ASME SA179 Seamless cold drawn low carbon steel heat exchanger tubes

 

Standard: ASTM A179 / ASME SA179

Steel grade: Low carbon steel

Material shall conform to the applicable requirements of specification A450/A450M

Carbon, % 0.06-0.18
Manganese, % 0.27-0.63
Phosphorous, max. % 0.035
Sulfur, max, % 0.035

Process: cold drawn

The tubes cover minimum wall thickness.

Application: tubular heat exchangers, condensers, and other heat transfer apparatus

 

Dimensional range:

OD: 19.05-76.2mm

Any specific size is to be discussed before offer

 

The tube be 100% eddy current tested

Ultrasonic test is as option

Straightness ≤1mm/1000mm

Roughness: Ra ≤0.8

 

Test

  • The tubes shall have a hardness test, it is not exceeding 72HRB.
  • One flattening test shall be made on specimens from each of two tubes from each lot or fraction thereof.
  • One flaring test shall be made on specimens from each of two tubes from each lot or fraction thereof.
  • When specified as a substitute for the flaring test, for tubes having a wall thickness (actual mean wall) less than 10% of the outside diameter, one test shall be made on specimens from each of two tubes other than specified above, the flange test shall not be required.
  • Rockwell hardness tests shall be made on specimens from two tubes from each lot.(when the final heat treatment is in a continuous furnace, a lot shall include all tubes of the same size and heat, heat treated in the same furnace at the same temperature, time at heat, and furnace speed)
  • Each tube shall be subjected to the hydrostatic test, or, instead of this test, a nondestructive electric test may be used when specified by the clients.

 

Mechanical properties

Tensile strength, min, ksi (MPa) 47 (325)
Yield strength, min, ksi (MPa) 26 (180)
Elongation in 50mm, min, % 35

 

Tubes shall be delivered with square cut ends. The ends are free of excessive burrs.

The tubes are bundled in the waterproof plastic sheet and packed in the wooden cases

The case is most suitable for hanging by forklift.

EN10204-3.1 MTC shall be issued

EN10204-3.2 MTC is as option

 

Round Seamless Steel Heat Exchanger Tubes Not Exceeding 72HRB

Round Seamless Steel Heat Exchanger Tubes Not Exceeding 72HRB

Round Seamless Steel Heat Exchanger Tubes Not Exceeding 72HRB

 

Round Seamless Steel Heat Exchanger Tubes Not Exceeding 72HRB

 

Contact Details
Zhangjiagang Bonded Area Henglong Steel Tube Co., Ltd.

Contact Person: Yaxin

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