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Spiral steel pipe technical requirements

十月 16th, 2017|

Manufacturing method The use of hot-rolled steel pipe to do bad, often warm spiral shape, spiral automatic submerged arc welding method, internal and external submerged arc welding seam not be less than one. Allows the [...]

The method of forming large-diameter seamless steel pipe

十月 13th, 2017|

Large diameter seamless steel tube forming methods are: UOE method, conventional forming method, RBE roll forming method, JCOE molding method, C formation method, the people first party continuous bending method, etc.. A brief introduction is [...]

Identify fake spiral pipe with several methods

十月 12th, 2017|

    1) easy to render inferior spiral pipe collapsed.     2) inferior spiral steel outer appearance often pockmarked face.     3) easy to look shoddy spiral pipe scarring occurs.     4) easy to look shoddy spiral pipe cracking.     5) [...]

Spiral steel pipe welded pores Cause and Prevention Measures

十月 11th, 2017|

Spiral steel pipe weld zone defects are easy to produce pores, thermal cracking, and undercuts.     Spiral steel pipe seam weld porosity affects not only dense, resulting pipeline leakage and corrosion will be induced point [...]

JIS/ANSI steel elbow fittings

十月 9th, 2017|

Sizes: 1/2 to 72 inches Pressure: Sch10 to Sch160 and XXS Carbon steel: A234 WPB ,WPHY-42, WPHY-46, WPHY-52, WPHY-60, WPHY-65, WPHY-70 Alloy steel: ASME A234 WP1, WP5, WP9, WP11, WP12, WP22, WP91, and WP92 Stainless [...]

Big Size Seamless Pipe

九月 30th, 2017|

Product Name: ASTM A106 GRADE B SEAMLESS CARBON STEEL PIPES Details: Our main products include 8 series: Carbon steel seamless pipes for use in low and medium pressure boilers, petroleum casing tubes, ships, fluid conveyance, [...]

Standard Classification of spiral steel pipe

九月 29th, 2017|

Pressure fluid transport with spiral submerged arc welded pipe SY5036-2000, is mainly used to transport oil, natural gas pipelines;   Pressure fluid transport with spiral seam high frequency welded steel pipe SY5038-2000, high frequency lap [...]

How to increase stability of spiral steel pipe

九月 28th, 2017|

1) small and medium sized steel, wire rod, rebar, in diameter steel pipe, steel wire and wire rope, etc., can be expected in a well-ventilated storage shed, but it must be on the thatch underlay. [...]

How to prevent the spiral steel pipe factory steel products surface decarburization

九月 27th, 2017|

Spiral pipe manufacturers - processed look decarbonization doubt, the key in the heat treatment step. Because oxidation and decarbonization and wire are carried out simultaneously, thus, during the heat treatment as long as possible and [...]

Performance of large-diameter spiral pipe

九月 26th, 2017|

    In the steel standards, depending on the usage requirements of the tensile properties (tensile strength, yield strength or yield point elongation) and hardness, toughness index, as well as user requirements of high and low temperature [...]