Steel pipe is a hollow tube with round cross section for the conveyance of products.The products include fluids, gas, pellets, powders and more.Commonly,steel pipes include types are:Seamless steel pipe,Oil casing pipe,Galvanized pipe,ERW/SAW pipe,API 5L line pipe.

We mainly produce seamless steel pipe according to ASTM A106,ASTM A53,API 5L,API 5CT,ASTM A335,DIN 2448,DIN 1629,EN 10216,BS 1387,etc.

 4″ ASTM A106 Carbon Steel STD Seamless Steel Pipes

ASTM A106 Carbon Steel STD Seamless Steel Pipes Size:

1/2″-24″.

4″ ASTM A106 Carbon Steel Seamless Steel Pipes Schedule:

SCH20,SCH30,STD,SCH40,SCH60,XS,SCH80,etc.

4″ ASTM A106 STD Seamless Steel Pipes Material:

Stainless steel,carbon steel,alloy steel.

GB 20#,Q235,Q345,ST35.8,ST37,ST52,ASTM A106 Gr.B,A53 Gr.B,API 5L Gr.B X42,X46,X52,X60,X65,X70,S235JR,S355JR,L245,L290,L320,L360,L390,L415,L450.

Haihao Group Steel Pipe products Ends:

Bevel ends,Plain Ends,Threaded Ends,Grooved Ends.

Our group,Hebei Haihao group as a first class manufacturer of all kinds of steel pipes.We have produced steel pipes more than 30 years.Products are produced by forging, cold pressing, cold forming, hot extrusion, heat treatment, polishing, rubbing, machining and chrome finishing.Our products are produced strictly according to the required standard.If you have any need about seamless steel pipes,welcome to contact us.