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Threeway Steel Co., Ltd

E-mail: sales@srtsteelpipe.com

Address: 22nd Floor, Royal Wing Tower, Long Champ International Building, No.9 Xiangfu Road, Changsha, Hunan, China, PC: 410116

Phone:0086-731-8873-9521  

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Spiral Welding

Keywords :        Update : 2017-01-01        View(s) : 2541

Spiral welding refers strip or plate bending round, square and other shapes and then welded into the surface of the steel pipe seams. Welding methods can be divided according to different arc welded pipe, high-frequency or low frequency electric resistance welded pipe, gas pipe, stove ...

The Development Trend of The API 5L Steel Pipe

Keywords :        Update : 2017-01-01        View(s) : 2247

The energy market background, especially the construction of long distance natural gas pipeline to promote the development of API 5L steel pipe , the current market, domestic and international market demand for domestic oil and gas pipelines of about 8000000 T, the amount of annual suppl...

API 5L welded steel pipe

Keywords :        Update : 2016-12-29        View(s) : 2581

API early in 1926 released by the American Petroleum Institute (API)  API-5L   standard, initially including three steel grade A25, A, B, and later released several times. Prior to 2000, the worldwide use X70, about 40%, X65, X60 are in the 30%, a considerable number of small-c...

Lamination Defect Control Measures of SAWH Steel Pipe

Keywords :        Update : 2016-12-29        View(s) : 2382

Lamination defect control measures of  sawh steel pipe  is following below: 1, to improve the toughness of plastic tube Improve the cleanliness of molten steel, to reduce the harmful inclusions; increase the proportion of the slab crystal axis, to reduce the center segregati...

Properties of Api 5l Steel Pipe

Keywords :        Update : 2016-12-28        View(s) : 2378

Chemical Composition The composition of pipe furnished to this specification, as determined by heat analysis for pipe other than Grade X 80, shall conform to the chemical requirements specified in Table 2, except that by agreement between the purchaser and the manufacturer carbon contents ...

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