Two-way stainless steel pipe fittings have the performance characteristics of 304 and austenitic stainless steel pipe fittings products. Comparing duplex stainless steel pipe fittings with 304 and 316L stainless steel pipe fittings as the main material, the following differences are drawn:A. Duplex

As the main force of long-distance pipelines, what is the difference between oil pipelines and gas pipelines? We mainly use common crude oil steel pipes for oil pipelines.1. Different power sources: energy is also required, but crude oil steel pipes and natural gas steel pipes have different power s

First: welding processIn terms of the welding process, the welding method of spiral steel pipe and straight seam steel pipe is the same, but straight seam steel pipe will inevitably have a lot of T-shaped welds, so the probability of welding defects is also greatly increased, and the welding residue

Welding method of thick-walled steel pipes: To weld thick-walled steel pipes, first clean the oil, paint, water, rust, etc. of the weld joints, and then open the bevel according to the wall thickness. Machine), and then there is the gap between the products, which is generally 1-1.5 times the diamet