HUAYU INDUSTRY CO. LTD

High quality Nickel Alloy flanges such as inconel 625 alloy coating flange, used in various industry 
like Chemical, Aerospace, Marine, Petrochemical, Energy, Nuclear, Automotive, Military, and so on.

Advantage: inconel 625 alloy coated steel part has advantage of economical price, good anti-corrosion wear-proof performance, long using-life.

Working principle: pre-heating carbon steel (for example steel AISI 4140) to about 400°C, and use 
super-alloy inconel 625 welding rod (wire) coat 2-4mm alloy on the carbon steel flange, pipe, fitting, 
after the steel is cool, lathe and polish the surface of the alloy coated part. 

Our technology: Alloy surface coating technology (inconel 625 flange)is a composite technology 
of metallurgy for two kinds of different metals. We can make overlay welding on most carbon, 
low alloy, chrome moly, stainless steel and other steels with variety of corrosion resistant alloy 
including Inconel®, Incoloy®, Monel®, Hastelloy®, stainless steel and hard facing steels. 
Benefit from our advanced computer controlled welding stations, we offer very low dilution of 
alloy deposite. Real time video monitoring and recording system ensure perfect tie in and weld path.

Material used:

- Alloy 20

- Nickel 200, 201

- Monel 400. K-500

- Inconel 600, 601, inconel 625, 718, 725, X-750, 751, 783

- Incoloy 800, 800H, 800HT, 825, 890, 901, 925, 926

- Hastelloy B, B-2, C-22, C-276

- Special Stainless Steel F309, F310, F347, F348, 904L

- Dual Phase Steel F44, F51, F52, F53, F55

- Precipitation Hardening Steel 15-5PH, 17-4PH, 17-7PH, 18-8MoPH

- Stainless Steel S30403, S30408, S30409, S31008, S31603, S31608, S31609, S31668, S31703, S32168, S34779,

S39042, S11306, S22253, S22053, S21953

- High temperature alloy GH600, GH3128, GH3030, GH2132, GH1140