Arcing, testing current, or welding of temporary supports is not permitted on the surface of alloy steel
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Dear experts: Clause 5.2.1 of standard GB 50235-2010 specifies that arcing, testing current application, or welding of temporary supports shall not be carried out on the surface of alloy steel. Could you please provide a more detailed explanation?
It means exactly what it says: when welding alloy steel pipes again, it is not allowed to strike an arc on the pipe, and no other components such as supports can be welded onto it using the test current
Why, is there something special about alloy steel? Could other materials, such as carbon steel, work?
Why, is there something special about alloy steel? Could other materials, such as carbon steel, work?
Why, is there something special about alloy steel? Could other materials, such as carbon steel, work?
Why, is there something special about alloy steel? Could other materials, such as carbon steel, work?
That’s exactly what is required for alloy steel; since some alloy steels have been heat-treated upon leaving the factory, welding on them cannot be done arbitrarily. Ordinary carbon steel can be welded in such cases, as the application scenarios are different
Carbon steel is also not allowed; crater cracks