ASTM A500 structural pipe is a standard specification for cold-formed welded structural tubing produced to round nominal pipe sizes. Since ASTM A500 is a structural specification, round pipe HSS produced to this specification is a fit for applications being used in structural applications and general construction use. The tolerances of A500 are tighter than those of A53, therefore the A500 round pipe HSS has more quality and less variability than A53. Round HSS pipe has a superior surface finish and does not come with a lacquer coating. A500B Structural Pipe is manufactured for use in applications that demand greater strength, closer tolerances, and a superior finish. This product is an excellent choice for painted applications.
Stocked Size Range and Shapes
- 0.500″ Sch. 40 to 16.000″ XH
- Stocked in 21.000’ and 42.000’ lengths (cut to length available)
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MANUFACTURING PROCESS
ASTM A500 structural pipe is welded pipe sized tubing made from flat-rolled steel, formed through a roller system and welded using electric-resistance welding. Longitudinal butt joints of welded tubing shall be welded across its thickness in such a manner as to assure the structural design strength of the tubing section. Welded structural steel pipe is normally furnished without the removal of inside flash.
| Typical Chemical Properties | ||||
|---|---|---|---|---|
| Chemistry (%) | ASTM A500 | |||
| Grades A, B & D | Grade C | |||
| Heat Analysis | Product Analysis | Heat Analysis | Product Analysis | |
| Carbon* | 0.26 Max | 0.30 Max | 0.23 Max | 0.27 Max |
| Manganese* | 1.35 Max | 1.40 Max | 1.35 Max | 1.40 Max |
| Phosphorus | 0.035 Max | .045 Max | 0.035 Max | 0.035 Max |
| Sulphur | 0.035 Max | .045 Max | 0.035 Max | 0.045 Max |
| Copper** | 0.20 Min | 0.18 Min | 0.20 Min | 0.18 Min |
| *For each reduction of 0.01 percentage point below the specified maximum for carbon, an increase of 0.06 percentage point above the specified maximum for manganese is permitted, up to a maximum of 1.50% by heat analysis and 1.60% by product analysis | ||||
