Welded pipe,tube


We have Grades:

304 ,SUS 304,S30400,1.4301,X5CrNi18-10/304H,S30409,S30415, 1.4948,S30409/304L,1.4306,S30403,1.4307,S30400/316L,S31600, 1.4401,1.4404,S31603,1.4435/316Ti,S31615, 1.4571,S31635/321,S32100,321H,S32109,1.4541/800,H800HT,UNSN08810&NO8811/904L ,1.4539,N080904/Incoloy 800,UNS N08800/Incoloy 825 ,UNSN08825,2.4858/ inconel600,inconel601,inconel690,254SMO,s31254,Hastelloy C-276,UNSN10276,Inconel 625,UNSN06625/Inconel 718,UNS N07718/Monel 400,UNS NO4400/Monel K-500,UNS NO5500/S32101,1.4162/S32205S32205,S31803,1.4462/S32304 ,1.4362,UNS S32304/S32750,1.4410,2507, F53/S32760,1.4501

ASTM A312 pipe Electric Resistance Welding (ERW)

ASTM A358 Electric Fusion Welding (EFW)

X-ray Film on the seam

PMI chemical composition test-JIS G3459 309S

ASTM A249 bright anneal

Stainless steel welded pipe

Duplex steel pipe

Stainless steel welded piping

Welded Duplex steel pipe

Stainless steel welded tube

Welded duplex steel piping

Stainless steel welded tubing

01. Surface finish: annealed, Polish, Brush, etc.
02. Standards: ASTMA312, ASTMA778, JISG3459EN10217-7, ASTMA554, ASTMA249
      ASTMA269, ASTMA270, DIN11850, ISO2037

03. Size: (ansi/asme size as under, other standards of size is for ready choice)
      a). NPS: 1/8"-80"
      b). Schedule: 5/5S, 10/10S, 20/20S, 40/40S, 80/80S, 120/120S, 160/160S acc. To ANSI B36.19/36.10
      c). O.D.: 0.23" to 80"(5.8mm-2032mm)
      d). W.T.: 0.01" to 1.125"(0.25mm-28mm)


Complete inspection equipment and quality system.
Eddy current test, Ultrasonic detector, hydraulic test equipment, Universal testing machine, Arldirect-reading spectrometer...... Recently we have replaced a new set of advanced PMI equipment, OXFORD INSTRUMENTS X-MET7000
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Advanced equipment and technological process.
We have 5 bright annealed furnace with 30 mtrs in length, the highest temperature can reach 1350℃, and the tolerance between the set and real temperature could be within 2℃, and it ensures the mechanical properities and the quality of the pipe surface.
Straightening Machine, this equipment can ensure the straightness of our big OD pipes
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