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
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