Why Need Weld Overlay?

- Aug 30, 2017 -

Why Need Weld Overlay?

Because of high quantity of H2S, O2, erchloride and other corrosive medium exist in lots of valves and pipes which are used in deep-water drilling and coal chemical industry, so to make the equipments have better performance of anti- erosion, longer service life and lower manufacturing cost, some developed countries led by USA API adapting a manufacturing way which is weld overlay a nickel layer on the surface of low alloy valve body, valve deck, pipe fitting. In this way, drilling equipment can keep low cost of low alloy material, and the expensive nickel alloy material can used in other field.

blob.png

Related News

Related Products

  • Open Die Pipe Forgings Block、forged Step Shaft
  • Duplex Steel 2205/2507/31803stainless Steel Tube Fittings, Butt Welding Elbow Seamless or Weld 45/90/180 Deg. Short/long Radius, ABS Certificated
  • UNS 32750/ S32205 Super Duplex Steel Slip On Raised Face Flange
  • ANSI B16.5 Class 150 Welding Neck Flanges with 3.1 Certification Forging Flanges
  • Butt Welding Steel ECC Reducer for Oil/gas Industry,Duplex Steel/stainless Steel/copper Nikel Titanium Alloy/alloy Steel DNV/GL,ABS,RINA, LR, CCS
  • ANSI B16.9 Butt Welding Stub End, Lap Joint, Shipbuilding Industry,Duplex Steel/stainless Steel/copper Nikel Titanium Alloy/alloy Steel DNV/GL,ABS,RINA, LR, CCS