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SSAW Welding Joint Types and Characteristics
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SSAW Welding Joint Types and Characteristics

Update:2017-03-13   View(s):1331   Keywords :SSAW steel pipe ,Welded pipe,SAWH steel pipe,api 5l
SSAW steel pipe weld types:
Strip head weld: steel strip head weld is spiral seam weld pipe, steel sheet or strip end to end.
Butt weld: two parts steel pipe connected to the formation of circular welds.
Locate welds: final welding for fixed butt edge of the weld.
Spiral pipe characteristics: welded pipe production process is simple, high efficiency, low cost, rapid development. The strength of the spiral welded pipe is generally higher than the Longitudinal, can narrow the billet production of large diameter pipe, you can also use the same width of the billet production of different diameters of pipe.However, compared with the same length of straight seam pipe, the weld length increased by 30 to 100%, and lower production rate.
Spiral Pipe thermal fatigue generally refers to the stability of the work in the cold, heat alternating effect the ability to resist cracks. Thermal fatigue crack due to cold, heat alternating crack said.

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