20# Steel Pipe And 20G Steel Pipe Differentiation

20# seamless steel pipe has high cold deformation plasticity and is generally used for bending, rolling, flanging and hammer arching. It has good welding performance of arc welding and contact welding. It can be used on parts with small thickness, strict appearance requirements or complex shapes during gas welding. Prone to cracks. The cold-drawn or normalized state has better machinability than the annealed state, and is generally used to manufacture materials with low stress but high toughness requirements.
20G seamless steel pipe is mainly used to manufacture high-pressure and higher-parameter boiler pipe fittings, low-temperature section superheaters, reheaters, economizers and water-cooled walls; such as small-diameter pipes for heating surface pipes with wall temperatures ≤500°C, and water-cooled walls. Pipes, economizer pipes, etc., large-diameter pipes with wall temperature ≤450℃ steam pipes, headers (economizers, water-cooled walls, low-temperature superheaters and reheater headers), medium temperature ≤450℃ pipeline accessories, etc.

20 # chemical composition

20 # mechanical properties (mechanical properties)