Seamless carbon steel tube introduction


Seamless carbon steel tube is used to transport liquid, such as oil, natural gas, coal gas, water and some certain solid materials.

The standards of seamless carbon steel tube.

ASTM A 53 specification for black steel seamless pipes

API 5L specification for line pipe

ASTM A 106 Gr. B seamless carbon steel pipes for high-temperature service

ASTM A 161 seamless low-carbon and carbon molybdenum steel still tubes for refinery service

ASTM A179 specification for seamless cold-drawn low-carbon steel heat-exchanger and condenser tubes

ASTM A192 specification for seamless carbon steel boiler tubes for high-pressure service

ASTM A 210 specification for seamless medium-carbon steel boiler and superheater pipes

ASTM A 213 specification for seamless ferrite alloy steel boiler, superheater and heat-exchanger pipes

ASTM A 519 seamless carbon and alloy steel for mechanical tubing

ASTN A 556 seamless cold-drawn carbon steel feed water heater tubes

Steel Grade of seamless carbon steel tube.

GB/T8162 , GB/T8163:10#, 20#, 35#, 45#, 16MN(Q345B)

ASTM A53 GR. A , GR. B, GR. C

ASTM A106  GR. A , GR. B, GR. C

DIN 162 St 37.0, St 44.0, St 52.0

API 5L  A B X42,X46, X52, X60, X65, X70, X80

The comparison of different steel grades.

China GB ASTM DIN 17175
10# ASTM A106 Gr.A






St 37-2

St 35.8

St 35.4

20# ASTM A106 Gr.B


ASTM A315 Gr.B

ASTM A210-A-1


St 42

St 45

16Mn ASTM A210-C St 52.4

St 52.3

St 52


45# ASTM 1045 CK45

Manufacturing process of seamless carbon steel tube.

Manufacturing process of seamless carbon steel tube.

Manufacturing process of seamless carbon steel tube.

Related test of seamless carbon steel tube.

Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield strength, Elongation), Technical Properties (Flattening Test, Flaring Test, Bending Test, Hardness Test, Blow Test, Impact Test etc), Exterior Size Inspection, Nondestructive Test (Ultrasonic flaw detector, Eddy current flaw detector), Hydro-static Test.

Photos of seamless carbon steel tube.

 seamless carbon steel tube

seamless carbon steel tube

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