304H Stainless Steel Flanges DN10-DN1500 with 815°C Temperature Rating for Industrial Piping Systems
Precision-engineered 304H stainless steel flanges (UNS S30409) deliver exceptional high-temperature stability and oxidation resistance for demanding industrial applications.
- Superior High-Temperature Strength: Optimized for steam lines, exhaust systems, and furnace components requiring long-term stability under extreme heat up to 815°C (1500°F)
- Enhanced Oxidation & Corrosion Resistance: Chromium-nickel alloy resists scaling and degradation in oxidizing atmospheres, mild acids, and alkaline media
- Cost-Effective Durability: Balances high-temperature performance with affordability, reducing lifecycle costs in energy and processing plants
- Global Compliance: Manufactured to ASTM A182, ASME B16.5, EN 1092-1, and PED 2014/68/EU standards
- Full Material Traceability: Backed by MTC 3.1 certification and ISO 9001 quality management
- Seamless Integration: Compatible with standard piping systems, minimizing retrofitting expenses
Weld neck, slip-on, blind, threaded, socket weld, and lap joint flanges
DN10 to DN1500 with customizable pressure ratings (Class 150 to 1500)
RF (Raised Face), FF (Flat Face), RTJ (Ring Type Joint)
Solution annealing and passivation available for enhanced corrosion resistance
Our established Quality Management Department implements comprehensive quality control across all sectors, including QC, QA, and management system supervision. Annual management reviews ensure continued conformance, effectiveness, and suitability of our quality systems.
| API-5LD Authentication | American Petroleum Institute API 5LC Certificate | ASME Certificate | EU PED & AD2000 Certificate | ABS Classification Society Certification |
|---|---|---|---|---|
![]() |
![]() |
![]() |
![]() |
![]() |
| DNV Det Norske Veritas Certificate | RINA Italian Bureau of Shipping Certificate | BV French Bureau of Shipping Certification | LR Lloyd's Register Certificate of Approval | Customs Union EAC Certificate |
![]() |
![]() |
![]() |
![]() |
![]() |
Get competitive quotes, technical support, and expedited global shipping for your 304H stainless steel flange requirements.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.









