Flanges Manufacturing Process

Understanding customers requirement and ensuring to supply as per these requirements is realised with the help of quality assurance at Sunny Steel one of the best Flange Manufacturers in China , our product range include all types of flanges such as MS Flange ( Mild Steel ) , Raised face flange , Weld neck flange, Bellow Flange , and Flanges according to custom requirement.
Raw material
1. Raw material
Steel Heating
4. Steel Heating
Flange Rolling
7. Flange Rolling
Flange mark
10. Flange mark
Final Inspection
13. Final Inspection
Material Inspection
2. Material Inspection
Forging & Rolling
5. Forging & Rolling
Drilling Holes
8. Drilling Holes
Well packing
14. Well packing >>
Steel Cutting
3. Steel Cutting
Heat Treatment
6. Heat Treatment
Mark the flange
9. Mark the flange
 Dispatch
15. Dispatch
Raw Materials:
Beginning with this process,the system controls the quality of all incoming materials as per the raw material test certificate of the material. Mild Steel Flanges ( MS ) are of premium quality that ensures high durability, strength and resistivity to varied non-supporting conditions. Also, checking in each size for chemical and physical properties of these materials at Government approved laboratory.

The Rust Prevention for Steel Flanges
The normal rust prevention treatment for steel flanges include yellow (Golden) paint Coating, black paint coating or black phosphating treatment, varnish paint coating, varnish antirust oil coating, electro galvanizing coating (Cold), hot dip galvanizing coating etc.

The Packing Works for Steel Flanges  >>
Steel flanges must be packed with seaworthy packing method then delivery to customers, usually the packing way include wooden box, wooden pallet, iron & steel cage, iron & steel pallet etc. Because of the normal wooden boxes or wooden pallets have to do fumigation treatment, we usually use plywood pallet or plywood case or box to pack steel flanges without fumigation treatment. Whatever plywood or iron & steel packing way, they must be seaworthy, strong, waterproof and easy for loading and unloading.

Shipping mark stick to outside of package.

Dispatch:
The final process of dispatch is the most tedious of all , and heavy duty cranes are used for it. With the help of our extensive delivery chain we can ensure time critical deliveries at the behest of our esteemed clients. We are indeed privileged to be able to serve and live upto their expectations and occupy unparalleled postion of Flange makers in China.

Why Us?

Welcome to Sunny Steel Enterprise Ltd.

Sunny Steel provide a wide range of steel products as Steel pipes, Seamless tube and seamless pipes, Alloy pipes, Pipe fittings, Composite steel pipe used in the industry, construction etc.

Top pipes

A333 Gr.6 A335 P11 A335 P22 A335 P5 A335 P5 pipe A335 P9 A335 P91 A335 p91 pipe A335 pipe API API 5CT J55 API 5CT K55 API 5CT L80 API 5CT N80 API 5CT P110 API 5L ASTM A213 ASTM A213 T11 ASTM A213 T9 ASTM A333 Grade 1 ASTM A333 Grade 6 ASTM A333 pipe ASTM A335 P22 ASTM A335 P22 alloy pipe ASTM A335 P22 pipes ASTM A335 P5 ASTM A335 P5 Steel Pipes ASTM A335 P9 ASTM A420 WPL6 Alloy Steel Pipe Alloy tube Anti-corrosion pipe Astm a335 p11 Bend pipe Big diameter elbows Boiler tubes Brass Pipe Tee Butt welded elbow Butt welding fittings Butt-welded Eccentrice reducer Buttwelding Ends Carbon Steel Seamless reducer Carbon Steel cap Ceramic Lined Elbows and Bends Ceramic lined elbows DIN 2391-81 Part 2 Seamless Precision steel tubes Elbow 22.5 degree Elbow 45 degree Elbow 90 degree Elbow Fittings Flange Nuts Forged Tee Fittings Galvanized Pipe High pressure boiler pipes Hydraulic Cylinder Bore Tube JCOE pipes JCOE welded pipe Large size eccentric reducer Long radius pipe elbows Oval pipe Pipe Tee Suppliers Pipe Tees Pipe bend Pipe elbows Pipe fitting Pipe flanges Pipe tee Reducer Seamless Precision steel tubes Seamless Tubing Seamless pipes Seamless stainless tube Seamless tubes Short radius pipe elbows Stainless Pipes and tubes Stainless pipe elbows Stainless steel stub end Stainless tube Steel Pipe Tee Sunny Steel Tee fittings Tubes for Heat Exchanger Tubes for Heat Exchanger and Condensers Types of stainless steel U bend tubes U-bend tube Weld tube Welded pipe Welded pipes abrasion resistant pipe carbon steel elbows flange flanges pipe caps pipe fittings pipe reducer plate flange plate flanges seamless tube stainless steel seamless tube steel flange steel flanges