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Seamless steel tubes for low and medium pressure boilerGB/T5310

Short Description:

Product material:


Product applied standard:


Finished products package:

Steel belt hexagonal package/plastic film/woven bag/sling package


Product Detail

Product Tags


Seamless steel tubes for low and medium pressure boiler

Product material 10/20
Product specification
Product applied standard GB/T3087-2008
Delivery status
Finished products package Steel belt hexagonal package/plastic film/woven bag/sling package

Product Manufacturing Process

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Tube blank


Inspection (spectral detection, surface inspection, dimensional inspection, and macro examination)

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Thermal inspection

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Grinding inspection

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Cold-drawing (the addition of cycled processes such as heat treatment, pickling and cold drawing should be subject to the specific specifications)

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Performance test (mechanical property, impact property, metallographic, flattening, flaring, and hardness)



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Tube cutting

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Non-destructive testing (eddy current, and ultrasonic)

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Hydrostatic test

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Product inspection

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Product Manufacturing Equipment

Shearing machine/sawing machine, walking beam furnace, perforator, high-precision cold-drawing machine, heat-treated furnace, and straightening machine


Product Testing Equipment

Outside micrometer, tube micrometer, dial bore gage, vernier caliper, chemical composition detector, spectral detector, tensile testing machine, Rockwell hardness tester, impact testing machine, eddy current flaw detector, ultrasonic flaw detector, and hydrostatic testing machine

Product Applications

Low or medium pressure boilers

Seamless steel pipes are widely used

1. General-purpose seamless steel pipes are rolled by ordinary carbon structural steel, low-alloy structural steel or alloy structural steel, with the largest output, and are mainly used as pipelines or structural parts for conveying fluids.

2. According to different purposes, it can be supplied in three categories:

a. Supply according to chemical composition and mechanical properties;

b. According to mechanical performance;

c. According to the water pressure test supply. Steel pipes supplied according to categories a and b. if used to withstand liquid pressure, shall also be subjected to a hydraulic test.

3. Special-purpose seamless pipes include seamless pipes for boilers, chemical and electric power, seamless steel pipes for geology, and seamless pipes for petroleum.

Package of carbon steel seamless pipe

Plastic caps plugged at the two sides of pipe ends
Should be avoided by the steel strapping and transport damage
Bundled sians should be uniform and consistent
The same bundle(batch) of steel pipe should be came from the same furnace
The steel pipe has the same furnace number,the same steel gradethe same specification

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