310S heat resistant plate flange, PN20 high temperature flat flange, furnace exhaust pipeline flange

   310S PN20 High Temperature Resistant Plate Flange is high-temperature resistant stainless steel flat welding flange made of premium SUS310S austenitic stainless steel, professionally developed for high-temperature flue gas, hot air, high-temperature steam pipeline systems within 1050℃ long-term working temperature. Different from conventional 304/316L stainless steel, 310S material contains high chromium and nickel alloy components, possessing excellent high-temperature oxidation resistance and thermal fatigue resistance, no deformation or surface peeling under long-term high-temperature baking.

   Optimized thickened anti-thermal deformation flange structure achieves PN20 pressure grade, maximum 2.0MPa stable pressure bearing under high-temperature constant working state, solving thermal expansion dislocation and sealing failure of ordinary flanges under high temperature. The sealing face adopts high-precision anti-thermal lapping process, matched with flexible graphite high-temperature gasket, realizing zero leakage sealing for high-temperature flue gas and thermal medium. After solid solution heat treatment, the flange eliminates thermal processing stress, stable structural size under repeated heating and cooling cycles.

   All bolt holes adopt thermal expansion reserved drilling technology, reserved shrinkage tolerance to avoid bolt jamming at high temperature. Size DN25-DN450 high-temperature pipe standard size in stock. Whole surface pickling passivation treatment enhances high-temperature anti-scaling performance, easy daily pipeline maintenance. Widely applied for industrial kiln exhaust pipe, boiler high-temperature steam pipe, metallurgical hot air conveying pipe, chemical high-temperature reaction tail gas pipeline. Provide high-temperature protective film export packing, 20-year high-temperature anti-deformation warranty, complete heat resistance test documents.

Core Spec: Standard: EN1092-1; Pressure: PN20; Face: RF; Material: SUS310S Heat-resistant Stainless Steel; Max Working Temp: 1050℃; Process: Forged + Solution Treatment

FAQ

Q: Can you accept letters of credit with 30, 60 or 90 days usance?

A: Yes, we can.

Q: Can you issue invoices and cooperate with the chamber of commerce for certification?A: Yes, we can provide them.

Q: Can you issue Certificate of Origin Form E?A:

Yes, we can provide it.

Q: Can you accept open account (O/A) payment terms?

A: Yes, we can.

Q: Can you provide samples?

A: Yes, some samples are free of charge.

Q: Can you supply products that comply with NACE standards?

A: Yes, we can.