AISI 321 Stainless Steel Supplier & Exporter in India

Dipti Metal Industries, founded in 2009 by Mr. Kumpsingh Rajput, is a trusted supplier, stockist, and exporter of AISI 321 stainless steel products from India. Holding top-tier certifications—ISO 9001:2015, PED, CE, IBR, TUV, SGS, Lloyd’s, and DNV—we deliver high-quality stainless steel solutions to industries around the globe.

We export AISI 321 stainless steel to more than 56 countries worldwide, including major regions like the Middle East, Europe, North America, Asia-Pacific, Africa, and Latin America.

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What is AISI 321 Stainless Steel?

AISI 321 is an austenitic chromium-nickel stainless steel, stabilized with titanium, which prevents grain boundary carbide precipitation during welding or high-temperature service. This makes it highly resistant to intergranular corrosion and well-suited for elevated temperature applications.

Produced to deliver superior creep strength, oxidation resistance, and weldability, AISI 321 is the preferred choice for equipment operating under harsh thermal conditions.

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AISI 321 Stainless Steel Product Range

Pipes & Tubes

• AISI 321 Seamless Pipes & Tubes

• AISI 321 Welded Pipes & Tubes

• AISI 321 ERW & EFW Pipes

Buttweld Fittings (ASTM A403 WP321)

• AISI 321 Elbows (90°, 45°, LR, SR)

• AISI 321 Equal & Reducing Tees

• AISI 321 Concentric & Eccentric Reducers

• AISI 321 End Caps

Forged Fittings (ASTM A182 F321)

• AISI 321 Socket Weld Fittings

• AISI 321 Threaded Fittings

• AISI 321 Couplings, Unions & Nipples

Flanges (ASTM A182 F321)

• AISI 321 Weld Neck Flanges

• AISI 321 Slip-On Flanges

• AISI 321 Blind Flanges

• AISI 321 Lap Joint Flanges

• AISI 321 RTJ Flanges

Sheets, Plates & Coils (ASTM A240)

• AISI 321 Hot Rolled Plates

• AISI 321 Cold Rolled Sheets

• AISI 321 Strips & Coils (HR / CR, Annealed, Pickled, Polished)

Bars & Rods

• AISI 321 Round Bars

• AISI 321 Bright Bars

• AISI 321 Square Bars

• AISI 321 Hex Bars

Wires

• AISI 321 Wire Rods

• AISI 321 Spring Wires

• AISI 321 Welding Wires

• AISI 321 Electrode Wires

Fasteners (ASTM A193 / A194)

• AISI 321 Bolts, Nuts, Screws, Washers

• AISI 321 Stud Bolts & Threaded Rods

Valves

• AISI 321 Gate Valves

• AISI 321 Globe Valves

• AISI 321 Ball Valves

• AISI 321 Check Valves

Custom Forgings

• AISI 321 Forged Rings, Discs, Blocks, Machined Components

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Specifications & Standards

• Grade: AISI 321 / UNS S32100

• Standards:

  • ASTM: A312, A213, A240, A182, A403, A193, A194

  • ASME: SA312, SA213, SA240, SA182, SA403, SA193, SA194

  • EN/DIN: 1.4541 (X6CrNiTi18-10)

  • JIS: SUS 321

  • BS: 321S21

  • ISO: X6CrNiTi18-10

  • GOST: 08Ch18N10T

• Sizes Available:

  • Pipes & Tubes: ½” to 24”

  • Plates: 1 mm to 100 mm thickness

  • Bars: 6 mm to 500 mm diameter

  • Wires and Coils: Custom size options

• Finish Options: Bright, Annealed, Pickled, Polished

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International Equivalent Grades

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Applications of AISI 321 Stainless Steel

• AISI 321 Exhaust Systems & Automotive Components

• AISI 321 Aerospace Heat Shields & Furnace Tubing

• AISI 321 Chemical & Petrochemical Equipment

• AISI 321 Power Generation & Thermal Processing Units

• AISI 321 Food Processing & Sterilization Equipment

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Global Export Network 🌍

Dipti Metal Industries exports AISI 321 stainless steel products to top industrial hubs in:

• Middle East: Dubai, Abu Dhabi, Riyadh, Dammam, Muscat, Doha, Manama, Kuwait City

• Europe: London, Manchester, Berlin, Milan, Paris, Madrid, Warsaw

• North America: Houston, New York, Los Angeles, Toronto, Vancouver, Monterrey

• Asia-Pacific: Singapore, Kuala Lumpur, Tokyo, Osaka, Seoul, Shanghai, Bangkok

• Africa: Johannesburg, Cape Town, Cairo, Lagos, Nairobi

• Latin America: São Paulo, Rio de Janeiro, Santiago, Buenos Aires

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Why Choose Dipti Metal Industries?

• Established in 2009 by Mr. Kumpsingh Rajput

• Fully certified by ISO, CE, PED, IBR, TUV, SGS

• Proven exporter to 56+ countries

• Full product range of AISI 321 stainless steel

• Expert in custom manufacturing, forging, machining, and export packaging

• Commitment to fast, reliable, and secure delivery

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Frequently Asked Questions (FAQs)

Q1: What distinguishes AISI 321 from AISI 316?
AISI 321 is stabilized with titanium, providing enhanced resistance to intergranular corrosion in high-temperature service.

Q2: Which industries commonly use AISI 321?
AISI 321 is ideal for automotive, aerospace, Furnaces, heat exchangers, chemical, and thermal processing applications.

Q3: Do you supply AISI 321 fasteners and valves?
Yes, we offer a complete range of fasteners and valves in AISI 321 stainless steel.

Q4: Is AISI 321 suitable for high-temperature applications?
Absolutely—its titanium upgrade ensures stability at elevated temperatures and superior weldability.

Q5: Can I request third-party inspection and certification?
Yes, EN 10204 3.1/3.2 MTC and inspections from TUV, SGS, BV, Lloyd’s, ABS are available as required.

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Get a Quote Today

Looking for a reliable AISI 321 stainless steel supplier and exporter in India?
Since 2009, Dipti Metal Industries has been consistently delivering quality, dependability, and global standard compliance to clients in 56+ countries.

Get in touch to receive a competitive and personalized quote for your AISI 321 stainless steel requirements.