Introduction
The ASTM A182 F321 Forged Flange Ring is a high-temperature stainless steel forging designed for heat exchanger plants and industrial piping systems. Manufactured from titanium-stabilized stainless steel (TP321), this flange ring provides excellent resistance to intergranular corrosion and superior strength at elevated temperatures, making it a reliable choice for demanding thermal and mechanical conditions.
DLSS supplies forged flange rings in ASTM A182 F321, precisely machined to customer specifications, ensuring perfect fit and long-term durability in heat exchangers, boilers, and refinery systems.
Key Features
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Material: Stainless Steel ASTM A182 F321 (UNS S32100)
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Type: Forged Flange Ring
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Standard: ASTM A182 / ASME B16.5 (dimensions upon request)
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Stabilization: Titanium stabilized to prevent carbide precipitation
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Temperature Resistance: Performs well up to 870°C (1600°F)
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Corrosion Resistance: Excellent against oxidation, scaling, and intergranular corrosion
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Applications: Heat exchangers, boilers, chemical plants, oil & gas, and power stations
Specifications
| Item | Details |
|---|---|
| Standard | ASTM A182 / ASME B16.5 |
| Material | Stainless Steel F321 (Ti-stabilized austenitic SS) |
| Type | Forged Flange Ring |
| Application | Heat Exchanger Plant, Boilers, Petrochemical, Power Generation |
| Surface | Machined, pickled, or coated upon request |
| Sizes | Customized (DN, Class, thickness) |
Advantages of ASTM A182 F321
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Titanium Stabilization – minimizes risk of intergranular corrosion after welding.
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High-Temperature Strength – retains mechanical properties up to 870°C.
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Durability – forged structure enhances toughness and reliability.
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Corrosion Resistance – resists scaling, oxidation, and acids in refinery & chemical service.
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Versatility – widely used in heat exchangers, pressure vessels, and industrial piping.
Applications
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Heat Exchanger Plants – tube sheets, flange rings, headers.
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Boiler Systems – high-temperature steam and water piping.
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Petrochemical Industry – refinery piping, catalytic equipment.
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Power Generation – turbine piping, condenser systems.
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Industrial Piping Systems – where high heat and corrosion resistance are critical.
Quality Assurance
DLSS ensures strict compliance with international standards:
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Forging & Machining Precision – customized dimensions.
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100% PMI Testing – ensures correct grade F321.
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NDT (UT, ET, RT) – verifies structural soundness.
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Heat Treatment Records – traceable process control.
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Third-Party Inspection – SGS, BV, TUV available upon request.
