15-1220mm(1/2 inch-48 inch)
usually 4-12 m,or according to the clients requirements
API5L: GRB, X42, X46, X56, X60, X70 ASTMA53: GRA, GRB, GRC EN: S275, S275JR, S355JRH, S355J2H GB: Q195, Q215, Q235, Q345, L175, L210, L245, L320, L360-L355
BS 1387,BS1139,EN39,EN10219,ASTM A53,API 5L,GB/T3091
epoxy coating, 3pe, vanish coating, bitumen coating, black coating or as per customer's requirements
Chemical Component Analysis, Mechanical Properties( Ultimate tensile strength, Yield strength , Elongation), Technical Properties( Flattening Test, Bending Test, Blow Test, Impact Test), Exterior inspection, Hydrostatic Test, X-ray Test, X-ray Test.
Hot Rolled,Cold Rolled
Carbon steel is more commonly used than any other metal, and has long been admired for its versatility and low cost. Federal Steel stocks a complete selection of carbon steel pipe and steel tubing in an extraordinary range of grades and specifications.
1. The pre-stress will compensate the tubing expansion caused by temperature difference between the inner and the outer tubes so as to ensure reliable operation under high temp.
2. Gas absorbing materials are packed inside the annulus to clean up harmful gases and maintain good insulating property whilst in service.
Low and middle pressure fluid pipeline, boiler, petroleum and natural gas industry, drilling, chemical industry, electric industry, shipbuilding, fertilizer equipment and pipeline, structure, petrochemical, pharmaceutical industry