In order to save cost, some JIS G3444 STK400 steel pipe manufacturers will select round steel produced by small steel plants for processing, but the JIS G3444 STK400 steel pipe produced by these small steel plants will contain many impurities, bubbles, in

Cracks, folds, scarring, rolling and separation are not allowed on the inner and outer surfaces of JIS G3444 STK500 steel pipe. These JIS G3444 STK500 steel pipe defects shall be completely cleared, the clearance depth shall not exceed the negative deviat

The seamless tube of DIN 17175 17Mn4 seamless steel pipe can be replaced by 16Mn seamless steel tube. 16Mn seamless steel tube is low-alloy and high-strength structural steel with carbon content of 0.1-0.25% and main alloying elements such as manganese, s

The specification P195GH steel pipe of EN 10216-2 grade covers non alloy steel pipes and specifies high temperature characteristics. Steel pipes will be supplied with 5-7m length, butt weld ends and paint to avoid oxidation of steel during storage. The P1