EN specification alloy steel pipes are used in high temperature applications. Seamless alloy steel tubes of EN 10216-1 grade P195TR2 alloy steel pipe conform to reheating and configuration under complete annealing, isothermal annealing or normalizing quen

The rust of ASTM A179 seamless steel pipe parts is soaked in 440 ~ 460 deares C molten zinc solution, which makes the zinc coating on the surface of the steel plate attached to the surface of the steel plate, playing a role in corrosion protection. This i

A572 Gr.50 steel pipe is a kind of high strength low alloy niobium vanadium structural steel in American standard ASTMA572/A572M-07. The welding of A572 Gr.50 steel pipe has the tendency to harden, it is easy to produce cold crack, and the toughness of he

Coil welding. It is a kind of process mainly used by domestic manufacturers. Most manufacturers can produce Q235B steel pipe with wall thickness no more than 8mm. It uses hot-rolled steel sheets as Q235B steel pipe raw materials, and the coils are initial