Detailed description of the Threaded Flange：
1. Type: Threaded Flange
2. Material: stainless steel，S34778/A182 F347/1.4550
3. Standard: American standard ANSI, AWWA, MSS, API
4. Size: 3/4"-200 "
5.Pressure: 150bls - 2500bls
6. Marking: according to the customer's requirements
7. Painting: Rust-proof oil
9. Packaging: plywood box and pallet
The chemical composition of S34778/A182 F347/1.4550 Threaded Flange is as follows:
C：0.08
Si：1.00
Mn：2.00
P：0.045
S：0.03
Ni：9.00-12.00
Cr：17.00-19.00
Reference formula of stainless steel of S34778/A182 F347/1.4550 Threaded Flange unequal angle steel: weight of stainless steel equal angle steel (kg) = (section side length 1 (mm) + section side length 2 (mm) - side thickness (mm)) * length (m) * density ρ (g/cm3)/1000;** [1] According to the unequal angle steel standard of S34778/A182 F347/1.4550Threaded Flange gb/t706-2008, the calculation formula of the actual weight of the angle steel is relatively complex. The heat-resistant stainless steel S34778/A182 F347/1.4550TH Flanges is mainly used for heat exchange and fluid transportation in the "three industries", which is 5% greater than the nominal wall thickness. This pure weld metal must have such composition in the welded state, that is, S34778/A182 F347/1.4550Threaded Flange can directly and evenly form a duplex structure dominated by austenite (30% - 70%) and containing ferrite after crystallization. 3 ordinary gate valves have two sealing surfaces, It adds some difficulties to machining, grinding and maintenance; Ships often working in the port are prone to encounter logs or other floating objects on the sea, which will accelerate the damage of the propeller. S34778/A182 F347/1.4550Threaded Flange is protected by PVC and PE covers. The last point is to choose duplex stainless steel in various corrosive environments. Even though duplex stainless steel has better local corrosion performance, it should be noted that the corrosion resistance of stainless steel is limited.
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