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The main standard of large-diameter J55 oil casing pipe is API 5L, the outer diameter of large-diameter oil casing is expressed in inches, and 1b/ft is the unit of weight. The oil casing adopts differ...

1. Basic requirements for the appearance of ERW straight seam steel pipe welds Before the non-destructive testing of straight seam steel pipes(ERW pipe), the appearance inspection of welds should meet...

In order to protect the quality of the ERW welded pipe we produce, we will conduct quality inspection on each welded pipe produced. So what are the inspection methods for welded pipe? Today we will fo...

ASTM A179 is an American standard, cold drawn seamless low carbon steel heat exchanger and condenser steel tube. ASTM A179 is equivalent to China's No. 10 high-quality low-carbon steel. The America...

1. Acceptance 1.1 The quality inspection and acceptance of straight seam steel pipes shall be carried out by the technical quality supervision department of the supplier. 1.2 The supplier must ensure ...

What should be paid attention to when oil casing pipe is anti-corrosion? 1. First of all, we must do a good job in meeting water quality standards, and strictly test and manage water quality. Implemen...