round and shaped steel cold formed welded and seamless carbon steel structural pipe.

Standard: ASTM A500 (ASME SA500)
Main purpose: electricity, petroleum, chemical companies, high temperature, low temperature resistance, corrosion-resistant piping systems.
The main products of steel / steel grade: Gr.A; Gr.B; Gr.C.
Specifications: OD :10.3-820 mm, wall thickness: 0.8 to 75 mm, Length: 6m, In addition, based on customer requirements, which can supply other grades and specifications of steel pipe.
Processing: steel shall be in accordance with one or more of the processing: open-hearth, blowing oxygen, or electric furnace steelmaking, casting of different grades of steel in order, steel producers should determine the intermediate material using conventional procedures removed, a clear separation of a Level.
Manufacturing: produced by seamless or welded steel pipe, welded pipe by rolling made ​​by resistance welding. Structural design strength of the longitudinal direction of the pipe, the docking application tube is a method of determining the through its thickness to weld.
Chemical Component(%)

 Grade  C  M  P  S  Cu
 Gr.A  0.26  1.35  0.035  0.035  0.20
 Gr.B  0.30  1.40  0.045  0.045  0.18
 Gr.C  0.23  1.35  0.035  0.035  0.20
 Gr.D  0.27  1.40  0.045  0.045  0.18

Mechanical Properties Min (MPa)

 Grade  Tensile Strength  Yield Strength  Elongation
 Gr.A  310  230  25
 Gr.B  400  290  23
 Gr.C  425  315  21
 Gr.D  400  250  23


ASTM A520 Standard Specification for Supplementary Requirements for Seamless and Electric-Resistance-Welded Carbon Steel Tubular Products for High-Temperature Service Conforming to ISO Recommendations for Boiler Construction.

This specification provides the requirements which are to supplement and supersede the requirements of ASTM specifications for seamless and electric-resistance-welded carbon steel tubular products suitable for high-temperature service, when these tubular products are to be used in applications conforming to ISO Rules. The tubular specifications which may invoke this specification are: Seamless Carbon Steel Pipe for High-Temperature Service A 106 Electric-Resistance-Welded Carbon Steel Boiler Tubes A 178/A 178M Seamless Carbon Steel Boiler Tubes for High-Pressure Service A 192/A 192M Seamless Medium-Carbon Steel Boiler and Superheater Tubes A 210/A 210M Electric-Resistance-Welded Carbon Steel Boiler and A 226 Superheater Tubes for High-Pressure Service. The values stated in inch-pound units are to be regarded as the standard.

Post time: Sep-26-2019