Carbon steel welded pipe and tube are used in high-pressure conditions. They are highly resistant to shock and vibration, making it ideal to transport fluids. Carbon steel pipes are widely used in a number of industries, such as transporting water and sewage, oil and gas industries, boiler and condenser tubes, high-pressure applications, and chemical processing.

Carbon steel seamless pipes are extensively applied in the nuclear device, gas conveyance, petrochemical, shipbuilding and boiler industries, with characteristics of high corrosion resistance combined with suitable mechanical properties.

Carbon Steel Welded Pipe/Tube Product Specification and Size

API 5CT

Product

Executive Standard

Dimension (mm)

Steel Grade

Casing

API 5CT

Ø48.3~273 x WT2.77~11.43

J55, K55, N80, L80

Tubing

API 5CT

Ø48.3~273 x WT2.77~11.43

J55, K55, N80, L80, H40

API 5L

Product

Executive Standard

Dimension (mm)

Steel Grade

Lining Pipes

API 5L

Ø60.3~273.1 x WT2.77~12.7

A25, A, B, X42, X46, X52, X56, X60, X65, X70, X80

ASTM/ASME

Product

Executive Standard

Dimension (mm)

Steel Grade

Electric-Resistance-Welded Steel Pipes

ASTM A135

Ø42.2~114.3 x WT2.11~2.63

A

ERW and Hot-dip Galvanized Steel Pipes

ASTM A53

Ø21.3~273 x WT2.11~12.7

A, B

Pipes for Piling Usage

ASTM A252

Ø219.1~508 x WT3.6~12.7

GR.2, GR.3

Tubes for General Structural Purpose

ASTM A500

Ø21.3~273 x WT2.11~12.7

GR.2, GR.3

Square Pipes for General Structural Purpose

ASTM A500

25 x 25~160 x 160 x WT1.2~8.0

Carbon Steel

Carbon Steel Welded Pipe/Tube Product Specification and Size

API 5CT

Product

Executive Standard

Dimension (mm)

Steel Grade

Casing

API 5CT

Ø114~219 x WT5.2~22.2

J55, K55, N80, L80, P110

Tubing

API 5CT

Ø48.3~114.3 x WT3.2~16

J55, K55, N80, L80, P110

API 5L

Product

Executive Standard

Dimension (mm)

Steel Grade

Lining Pipes

API 5L

Ø10.3~1200 x WT1.0~120

A, B, X42, X46, X52, X60, X70, X80, PSL1 / PSL2

ASTM/ASME

Product

Executive Standard

Dimension (mm)

Steel Grade

Black and Hot-Dipped Zinc-Coated Seamless Steel Pipes

ASTM A53

Ø10.3~1200 x WT1.0~150

Gr.A, Gr.B, Gr.C

Seamless Carbon Steel Pipes for High Temperature Service

ASTM A106

Ø10.3~1200 x WT1.0~150

Gr.B, Gr.C

Seamless Cold-Drawn Low-Carbon Steel Heat-Exchanger and Condenser Tubes

ASTM A179

Ø10.3~426 x WT1.0~36

Low Carbon Steel

Seamless Carbon Steel Boiler Tubes for High Pressure

ASTM A192

Ø10.3~426 x WT1.0~36

Low Carbon Steel

Seamless Cold-Drawn Intermediate Alloy Steel Heat-Exchanger and Condenser Tubes

ASTM A199

Ø10.3~426 x 1.0~36

T5, T22

Seamless Medium-Carbon Steel Boiler and Superheater Tubes

ASTM A210

Ø10.3~426 x WT1.0~36

A1, C

Seamless and Welded Carbon Steel Pipes and Alloy Steel Pipes for Low Temperature Use

ASTM A334

Ø1/4"~4" x WT SCH20~SCH80

Gr.1, Gr.6

Seamless Cold-Drawn Carbon Steel Feedwater Heater Tubes

ASTM A556

Ø10.3~426 x WT1.0~36

A2, B2