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Round Mild steel black pipe , Q235 / A53 gr. B erw welding pipe

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Address: Room 2116-2117, No. 6 , Xihu Road, Wuxi 214011, China

Contact name:SHAO FANG YUAN

Jiangsu Gangyu Pipeline Equipment Co.,Ltd

Round Mild steel black pipe , Q235 / A53 gr. B erw welding pipe

Country/Region china
City & Province wuxi jiangsu
Categories Aluminum

Product Details

mild steel black pipe , ERW pipe , Q235 / A53 gr. B welded pipe



General information of A53

Pipe ordered under this specification is intended for mechanical and pressure applications and is also accept-able for ordinary uses in steam, water, gas, and air lines. It is suitable for welding, and suitable for forming operations involving coiling, bending, and flanging, subject to the following qualifications:




ERW Steel pipesWelding Type ERW Electric Resistance Welding
SizeOutside Diameter : 60mm- 813mm

API 5L, ASTM A252/A134, ASTM A106-2006, ASTM A213-2001,

ASTM A312- 2001, ASTM A53-2007, EN10217, EN10219BS EN

10255BS EN 10226BS 1387, BS 4568, GB/T3901GB/t9711.1-


Wall thickness2.mm to 25mm
MaterialAPI Gr.B ASTM GR.A, GR.B, X42, X46, X52,etc
CertificatesAPI ISO TUV SGS BV etc

Loose package, Or in bundles(3Ton Max) , bundled pipes with two

slings at the both end for easy loading and discharging,

Surface TreatmentBare :Rust-proof black painting or following client request

Standard marking, or according to your request. Marking Method:

Spray white paint

End treatmentBevel End or Plain End
Pipe Length

Single Random Length and double Random Length.

SRL:5.8M DRL:11.8M or As clients requested length

Delivery Time10-40 days
Payment TermTT, LC at sight, etc.
Fluid pipe Power PlantFluid pipe
Structure pipeStructure pipe
High and low pressure Boiler tubeHigh and low pressure Boiler tube

Seamless steel tubes for petroleum cracking Conduit pipe

Scaffolding pipe pharmaceutical and ship building etc.

Seamless steel tubes for petroleum cracking Conduit pipeScaffolding pipe etc.


Main MarketAsia, Middle East, Europe, America, Africa, Australia, etc.





1. The test specimens and the tests required by this specification shall conform to those described in the latest issue of Test Methods and Definitions A 370.
2. The longitudinal tension test specimen shall be taken from the end of the pipe or, for continuous-welded pipe, it shall be permissible to be taken from the skelp, ata point approximately 90° from the weld, and shall not be flattened between gage marks. The sides of each specimen shall be parallel between gage marks. If desired, the tension tests are permitted to be made on the full section of pipe. When impracticable to pull a test specimen in full section,
the standard 2-in. [50-mm] gage length tension test speci-men shown in Fig. A2.3 of Test Methods and Definitions
A 370 is acceptable.
3. Transverse weld test specimens from electric-resistance-welded pipe shall be taken with the weld at the center of the specimen. All transverse test specimens shall be approximately 1 1⁄2in. [40 mm] wide in the gage length and shall represent the full wall thickness of the pipe from which the specimen was cut.
4. Test specimens for the bend and flattening tests shall be taken from pipe. Test specimens for the flattening test shall be smooth on the ends and free from burrs.
5. All specimens shall be tested at room temperature.



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