ASTM A53 Welded Pipe

Latest technology in the production of welded pipes

ASTM A53 is suitable for mechanical and pressure applications, as well as for general use in steam, water, gas, and air piping. It is suitable for welding and forming operations involving coiling, bending, and flanging, subject to certain qualification requirements.
A53 covers seamless and welded, ferrous and hot-dip galvanized nominal (average) wall pipe for coiling, bending, flanging and other special applications, and is suitable for welding. Continuously welded pipe is not suitable for flanging. The use of the pipe should be specified on the order.

Industry-leading welded pipe production technology

 

		Type E		Type F
		(electric- resistance welded)		(furnace- welded pipe)
		Grade A	Grade B	Grade A
Carbon max. %		0.25	0.30*	0.3
Manganese %		0.95	1.2	1.2
Phosphorous, max. %		0.05	0.05	0.05
Sulfur, max. %		0.045	0.045	0.045
Copper, max.%		0.40	0.40	0.4
Nickel, max. %		0.40	0.40	0.4
Chromium, max. %		0.40	0.40	0.4
Molybdenum, max. %		0.15	0.15	0.15
Vanadium, max. %		0.08	0.08	0.08
*For each reduction below 0.01% below the specified carbon maximum, an increase of 0.06% manganese above the specified maximum will be permitted up to a maximum of 1.65% (does not apply to SA53).

Allowable wall thickness deviation
The minimum wall thickness at any point shall not exceed 12.5% of the specified nominal wall thickness.

 

The outside diameter at any point shall not vary from the specified standard:

For NPS 1 1/2 and Smaller Sizes				For NPS 2 and Larger Sizes
1/64″ over		1/64″ under		1% over		1%under

Our welded pipes undergo strict quality control measures to ensure that they meet industry standards. We carry out a variety of tests, including appearance checks, dimensional checks and mechanical properties tests, to ensure that products meet the specified requirements. Our quality control processes are ISO 9001:2015 certified.

 

The company has a perfect product quality testing system, including physical testing and chemical testing. The company adopts advanced testing equipment, including universal testing machine, hardness tester, spectroscopy equipment, metallurgical microscope, ultrasonic flaw detector, etc., to ensure that the products meet the required standards and specifications.
 

 

All of our welded pipes can be treated with black paint, 3PE, 3PP, galvanized, etc. If you need, please contact us immediately!

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