AISI 321H Stainless Steel Supplier, Manufacturer & Exporter in India

DIPTI METAL is a trusted AISI 321H stainless steel supplier in India, delivering high-temperature resistant stainless steel products including pipes, tubes, flanges, forged fittings, and sheets. We cater to industries such as power generation, chemical processing, and oil & gas where enhanced creep resistance and durability are essential.

What is AISI 321H Stainless Steel?

AISI 321H (UNS S32109) is a high-carbon version of AISI 321. It is titanium-stabilized austenitic stainless steel with improved strength at elevated temperatures. AISI 321H is designed for use in environments where resistance to intergranular corrosion and excellent mechanical properties are required at high heat levels.

Our AISI 321H Product Range Includes:

• Seamless & Welded Pipes and Tubes
• Buttweld Fittings – Elbows, Reducers, Tees, End Caps
• Forged Fittings – Socket Weld & Threaded
• Flanges – WNRF, SORF, Blind, RTJ, Lap Joint
• Plates, Sheets, Round Bars, and Custom Fabrications

Standards & Specifications:

• Grade: AISI 321H / UNS S32109
• Standards: ASTM A312, A213, A240, A182
• Form: Seamless, Welded, Forged, Hot Rolled
• Size Range: ½” NB to 24” NB or custom sizes

Applications of AISI 321H Stainless Steel:

• Heat Exchangers & Boilers
• Refinery Equipment & Petrochemical Plants
• Power Generation & Oil & Gas Industry
• Pressure Vessels & Superheaters
• Furnace Components and Tubing Systems

Why Choose DIPTI METAL?

• ISO 9001:2015 Certified Supplier
• High-Temperature Grade 321H Ready Stock
• Mill Test Certificates (EN 10204 3.1/3.2)
• Third-Party Inspection from SGS, TUV, BV on Request
• Worldwide Export Support with Competitive Pricing

Looking for an AISI 321H stainless steel supplier in India? DIPTI METAL delivers quality, reliability, and service with prompt dispatch and full export documentation.

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Frequently Asked Questions (FAQs)

What is the difference between AISI 321 and 321H?

321H has a higher carbon content than 321, offering better strength and performance in high-temperature environments such as boilers and furnaces.

Is AISI 321H weldable?

Yes, AISI 321H has good weldability and is suitable for fusion and resistance welding methods. Preheating is not required.

Do you offer export services and certifications?

Yes, DIPTI METAL exports AISI 321H materials worldwide with MTC, third-party inspection, packing list, and other documentation as required.