Specification :

Line pipes are used to transport oil and gas, water, mineral slurry and other fluids. Our line pipes are manufactured in accordance with API Spec 5L.

Threaded Casing with Short/ Long Round Thread or Buttress

Drill Pipes with Welded-on Tool-Joints/ Threaded End

Line Pipe with Plain End and Beveled

Boiler Tubes / Heat Exchanger Tubes

Carbon Steel Tubes for General Structural Purposes

Precision Carbon Steel Tubes

Seamless Tubing and Couplings Hydrosulfide-Carbon Dioxide- and Cold-Resistant

High Longevity Oil-Well Tubing and Interlocks of Production Strings for Corrosive Media

Wear-Resistant Tool Joints for Tubing

Seampless Tubing with Externally Upset Ends and Couplings Hydrosulfid- and Cold-Resistant

Drill Pipes with Welded Tool Joints

Application:

Conveying gas, water, and oil in both the oil and natural industries, Tubular goods for petroleum and natural gas industries

Production Standard, Grade, Steel No:

API 5L PSL1 L175/ A25, L210/ A, L245/ B, L290/ X42, L320/ X46, L360/ X52, L485/ X70, PSL2 L245R/ BR, L290N/ X42N, L320N/ X46N, L360N/ X52N, L415/ X60N

API 5CT PSL1, PSL2, PSL3, H40, J55, K55, N80

GB/ T 9711.1 L175, L210, L245, L290, L320, L360

GB/ T 9711.2 L245NB, L290NB, L360NB

GB/ T 9711.3 L245NC, L290NC, L360NC

Delivery Condition:

Annealed, Normalized, Normalized and Tempered

Inspection and Test:

Chemical Composition Inspection, Mechanical Properties Test( Tensile Strength, Yield Strength, Elongation, Flaring, Flattening, Bending, Hardness) , Drift Test, Surface and Dimension Test, NDE, Hydrostatic Test, MT

Inspection and Tests Performed: View more...

5L - Chemical composition, Mechanical properties, Hydrostatic test, Dimensional testing, Visual inspection, Nondestructive inspection

5CT - Chemical composition, Tensile test, Flattening test, Hardness test, Impact test, Grain size determination, Harden ability, Sulfide stress-cracking test, Hydrostatic test, Dimensional testing, Visual inspection, Non-destructive examination( NDE)

Surface Treatment:

5L - Uncoated( bare) , Temporary coating, Special coating, Oil-dip, Shot Blasting, Varnish

Size: We supply various line pipes including seamless line pipes

( OD from 2-3/ 8" to 24" , steel grade A, B, X42 - X80)