Seamless Steel Pipe

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tube for structural purpose

Sizes: Out Diameter: 1-1/4″-16″, Wall Thickness: 0.109″-0.562″

Standard:ASTM A53, ASTM A106, ASTM A500/501-98, ASTM A519-98, JIS G3441-1994, JIS G3444-1994, BS EN 10210-1

Application:Used in the general structure and the mechanism, including construction, machinery, transportation


Boiler pipe

Sizes: Out Diameter: 6.0mm-114.0mm, Wall Thickness: 1.0mm-15.0mm

Standard: GB3087-1999, ASTM A179, ASTM A106, JIS G3454

Application:Used for manufacturing superheated pipelines, the steam pipe, boiling water tube, flue tube, small flue tube, etc.


Line pipe

Sizes: Out Diameter: 73-630mm, Wall Thickness: 6-35mm

Standard:API 5L

Application:For gas, water, transportation in Petroleum and natural gas industries


At present, Hunan Great Steel Pipe Co.,Ltd owns 3 sets of hot -rolled seamless steel pipe production line and 2 sets of hot-expanded seamless steel pipe production line with annual production capacity of 200,000 tons, the size range is from 73mm to 630mm. Its physical and chemical labs cab conduct various physical and chemical tests and experiments for steel pipes, and are equipped with eddy current flaw detectors, leakage fault detection and ultrasonic crack detectors etc. For high, medium and low pressure seamless steel pipes and petroleum casing pipes with a full range of inspection measures, capable to meet various standard test and inspection requirements for steel pipes.

◎ No.1 Production Line:

OD (68-168mm)

◎ No.2 Production Line: φ100 Plugs Mills

OD (89-133mm)

◎ No.3 Production Line: φ273 Accu-Roll Mills

OD (140-340mm)

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