DIN 1.4541 (AISI 321) Supplier in India – Dipti Metal Industries

Company Overview

Dipti Metal Industries, headquartered in Mumbai, India, is a leading DIN 1.4541 (AISI 321) Supplier, Manufacturer, Stockist, Dealer, and Exporter. Since 2009, under the guidance of Mr. Kumpsingh Rajput, we have served industries across more than 56 countries worldwide, under our trusted global brand “DIPTI”.

We supply DIN 1.4541 Pipes, DIN 1.4541 Pipe Fittings, DIN 1.4541 Flanges, DIN 1.4541 Fasteners, DIN 1.4541 Valves, and DIN 1.4541 Gaskets, manufactured to international quality standards.

📧 Contact: info@diptimetal.in

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🔹 About DIN 1.4541 (AISI 321)

DIN 1.4541, also designated AISI 321 or UNS S32100, is a titanium-stabilized austenitic stainless steel that provides improved resistance to intergranular corrosion compared to 304.

Key Features:

• Excellent resistance to oxidation up to 925 °C

• Stabilized with titanium to resist carbide precipitation

• Good weldability and formability

• High creep strength at elevated temperatures

• Non-magnetic in annealed condition

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🔹 International Equivalents

• DIN / EN: 1.4541 – X6CrNiTi18-10

• AISI / ASTM: 321 – TP321

• UNS (USA): S32100

• JIS (Japan): SUS321

• BS (UK): 321S31

• AFNOR (France): Z6CNT18-10

• GOST (Russia): 08KH18N10T / 08KH18N12T

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🔹 Chemical Composition

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🔹 Mechanical Properties

• Tensile Strength (Rm): 500–720 MPa

• Yield Strength (Rp0.2): ≥ 190 MPa

• Elongation: ≥ 40%

• Impact Energy: ≥ 100 J (longitudinal)

• Hardness: ≤ 215 HB

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🔹 Physical Properties

• Density: 7.9 g/cm³

• Elastic Modulus: ~200 GPa

• Thermal Conductivity (20 °C): ~15 W/m·K

• Specific Heat: 500 J/kg·K

• Electrical Resistivity: ~0.73 Ω·mm²/m

• Non-magnetic

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🔹 Standards & Specifications

• ASTM A182 – Forged flanges, fittings, and valves

• ASTM A240 – Plates and sheets

• ASTM A312 – Seamless and welded pipes

• ASTM A403 – Pipe fittings

• ASTM A276 – Bars and rods

• EN 10088-2/3 – Stainless steel standards

• DIN EN 10216-5 / 10217-7 – Seamless and welded tubes

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🔹 Welding & Processing

• Weldability: Excellent, thanks to titanium stabilization

• Post-Weld Heat Treatment: Not required

• Hot Forming Temperature: 1150–950 °C

• Cold Forming: Easy to form but work-hardens quickly

• Machining: Moderate machinability, similar to other austenitic steels

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🔹 Applications

• Boilers, superheaters, and heat exchangers

• Chemical and petrochemical equipment

• Exhaust systems and turbines

• Food and dairy processing plants

• Pulp and paper machinery

• Aerospace and automotive components

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🔹 Product Supply Range – DIN 1.4541

• Pipes & Tubes: Seamless, welded, fabricated

• Pipe Fittings: Elbows, reducers, tees, caps, stub ends

• Flanges: Weld Neck, Slip-On, Blind, Socket Weld, Threaded

• Fasteners: Bolts, Nuts, Studs, Washers, Screws

• Plates & Sheets: Standard and custom cuts

• Bars & Rods: Round, flat, hex

• Valves & Gaskets: Full industrial range

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🌍 Global Export Reach

We export DIN 1.4541 (AISI 321) products worldwide:

• Middle East: UAE, Saudi Arabia, Oman, Qatar, Kuwait

• Europe: Germany, UK, France, Italy, Spain, Poland

• North America: USA, Canada, Mexico

• South America: Brazil, Argentina, Chile

• Asia-Pacific: Japan, Singapore, South Korea, China, Australia

• Africa: South Africa, Egypt, Nigeria, Kenya

Exports are made via all major Indian ports: Nhava Sheva, Mundra, Kandla, Chennai, Hazira, Cochin, Vizag, Kolkata.

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🔹 Certifications & Quality

• ISO 9001:2015 Certified

• EN 10204 3.1 / 3.2 Test Certificates

• PED & NACE MR0175 Compliance

• Third-Party Inspections: TÜV, SGS, BV, DNV

• Full Batch Traceability

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❓ Frequently Asked Questions (FAQ)

Q1: What is DIN 1.4541 also known as?
A: AISI 321, UNS S32100, SUS321, or X6CrNiTi18-10.

Q2: Why is titanium added to 321 stainless steel?
A: Titanium stabilizes the alloy, preventing carbide precipitation and improving resistance to intergranular corrosion.

Q3: Where is DIN 1.4541 commonly used?
A: Boilers, exhaust systems, turbines, chemical plants, and food processing equipment.

Q4: What is the maximum operating temperature?
A: Continuous service up to 925 °C.

Q5: How does 321 compare to 304 stainless steel?
A: 321 offers superior performance in welded and high-temperature applications.

Q6: Is it weldable?
A: Yes, with no post-weld heat treatment required.

Q7: What are its mechanical strengths?
A: Tensile 500–720 MPa, yield ≥ 190 MPa, elongation ≥ 40%.

Q8: Is it magnetic?
A: No, it remains non-magnetic in the annealed condition.

Q9: Do you provide certifications?
A: Yes, ISO, EN 10204, PED, NACE, and optional third-party inspections.

Q10: Why choose Dipti Metal Industries?
A: 15+ years of experience, certified quality, global exports, competitive pricing, and reliable service.