LengthUnless otherwise indicated in the purchase order, pipe should be supplied in the following lengths:The average length of pipes in one order should be not less than 11.6 m with a minimum of 95% of pipes between 11 and 12.2 m in length.No pipe should be less than 10 m in length.No pipe should be

Heat treatment is used to avoid or alleviate the detrimental effects of high temperatures, which are unavoidable during the welding process. The heat treatment required and the recommended temperatures and holding times vary among metals. They are specified in ASME B31.3, Table 331.1.1, Requirements