ASTM A513 ERW Carbon Steel Pipe

ASTM A513 erw carbon steel pipe covers round, square, rectangular, and special shape tubing. 

Types of astm a513 erw carbon steel pipe

Types	Size Range (Round Tubing)
Electric-Resistance-Welded Tubing from Hot-Rolled Steel	Outside diameter from ½ to 15in. (19.0 to 381.0mm) Wall from 0.065 to 0.650in. (1.65  to 16.50mm)
Electric-Resistance-Welded Tubing from Cold-Rolled Steel	Outside diameter from ⅜ to 12in. (9.92 to 304.8mm) Wall from 0.022 to 0.134in. (0.71 to 3.40mm)

An analysis of each heat of steel shall be made by the steel manufacturer to determine the percentages of the elements specified; if secondary melting processes are employed. the heat analysis shall be obtained from one remelted ingot or the product of one remelted ingot of each primary melt. The heat analysis shall conform to the requirements specified. except that where the heat identity has not been maintained or where the analysis is not sufficiently complete to permit conformance to be determined, the chemical composition determined from a product analysis made by the tubular manufacturer shall conform to the requirements specified for heat analysis. When requested in the order or contract, a report of such analysis shall be furnished to the purchaser. 

When requested on the purchase order, a product analysis hall be made by the supplier. The number and source of samples for such product analysis shall be based on the individual heat or lot identity of one of the following forms of material: 
Heat Identity Maintained—One product analysis per heat shall be made on either the flat-rolled stock or tube. 
Heat Identity Not Maintained—A product from one tube per 2000 ft (610 m) or less for sizes over 3 in. (76.2 mm), and one tube per 5000 ft (150 m) or less for sizes 3 in. and under. 

If the original test for product analysis fails, retests of two additional lengths of flat-rolled stock or tubes shall be made. Both retests for the elements in question shall meet the requirements of the specification: otherwise, all remaining material in the heat or lot shall be rejected or, at the option of the producer, each length of flat-rolled stock or tube may be individually tested for acceptance. Lengths of flat-rolled stock or tubes which do not meet the requirements of the specification shall be rejected.

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