DIN 1.4301 (AISI 304 / UNS S30400) Stainless Steel Supplier, Manufacturer & Exporter in India – Dipti Metal Industries

Dipti Metal Industries, headquartered in Mumbai, India, is a leading DIN 1.4301 (AISI 304 / UNS S30400) Stainless Steel Supplier, Manufacturer, Exporter, Stockist & Dealer. Since 2009, under the brand “DIPTI”, we have expanded our global supply network to over 100 countries, offering ISO-certified quality, fast delivery, and full traceability.

🌍 Origin: India
⚓ Export Loading Ports: Nhava Sheva (JNPT), Mundra, Kandla, Hazira, Chennai, Vizag, Cochin, Kolkata

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🔹 About DIN 1.4301 (304 Stainless Steel)

DIN 1.4301, also designated as AISI 304 / UNS S30400 / EN X5CrNi18-10, is the world’s most widely used austenitic stainless steel. It offers:

• Excellent corrosion resistance in atmospheric and chemical environments

• Good weldability & machinability

• High oxidation resistance up to 870 °C intermittent / 925 °C continuous

• Versatility across industrial, architectural, and sanitary applications

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🌍 International Equivalents

• DIN / EN: 1.4301 – X5CrNi18-10

• AISI / ASTM (USA): 304

• UNS (USA): S30400

• BS (UK): 304S15, 304S16, 304S31

• JIS (Japan): SUS 304

• AFNOR (France): Z6CN18-09

• ISO: 304

• Other: EN 58E

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🧪 Chemical Composition (Typical %)

C ≤ 0.07 | Si ≤ 1.00 | Mn ≤ 2.00 | P ≤ 0.045 | S ≤ 0.03 | Cr 17.5 – 19.5 | Ni 8.0 – 10.5 | Fe Balance

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⚙️ Mechanical Properties

• Tensile Strength (Rm): 520 – 720 MPa

• Yield Strength (Rp0.2): ≥ 210 MPa

• Elongation (A5): ≥ 45%

• Hardness: ≤ 215 HB

• Density: 8000 kg/m³

• Melting Point: ~1450 °C

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📐 Product Forms – DIN 1.4301

• DIN 1.4301 Sheets, Plates, Strips & Coils

• DIN 1.4301 Pipes & Tubes – Seamless, welded, ERW, EFW

• DIN 1.4301 Bars & Rods – Round, square, hex, bright, forged

• DIN 1.4301 Pipe Fittings – Elbows, tees, reducers, caps, stub ends, crosses

• DIN 1.4301 Forged Fittings – Couplings, plugs, unions, olets, swage nipples, hex nipples, bushings

• DIN 1.4301 Flanges – Weld neck, slip-on, blind, socket weld, threaded, lap joint, spectacle, spade, spacer

• DIN 1.4301 Fasteners – Stud bolts, hex bolts, nuts, heavy hex nuts, washers, screws

• DIN 1.4301 Valves & Gaskets – Gate, globe, ball, check valves; spiral wound, ring joint, PTFE, graphite gaskets

• DIN 1.4301 Wires & Bright Bars

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📑 Standards & Specifications (Product-wise) – DIN 1.4301

DIN 1.4301 Pipes & Tubes

• ASTM A312 / ASME SA312 – Seamless and welded stainless steel pipes

• ASTM A213 / ASME SA213 – Boiler, superheater, and heat exchanger tubes

• ASTM A249 / ASME SA249 – Welded heat exchanger and condenser tubes

• EN 10216-5 – Seamless stainless steel tubes for pressure purposes

• EN 10217-7 – Welded stainless steel tubes for pressure purposes

• JIS G3459 – Stainless steel pipes

• GOST 9941 – Seamless stainless tubes

DIN 1.4301 Plates, Sheets & Coils

• ASTM A240 / ASME SA240 – Plates, sheets, and strips

• EN 10028-7 – Stainless steels for pressure purposes

• DIN EN 10088-2 – Stainless steels for general purposes (sheets/plates/strips)

• JIS G4304 / G4305 – Hot-rolled and cold-rolled stainless steel plates/sheets

DIN 1.4301 Bars & Rods

• ASTM A276 / ASME SA276 – Stainless steel bars and shapes

• ASTM A479 / ASME SA479 – Bars and rods for pressure vessels

• DIN EN 10272 – Stainless steel bars for pressure purposes

• JIS G4303 – Stainless steel bars

DIN 1.4301 Pipe Fittings

• ASTM A403 / ASME SA403 – Wrought austenitic stainless steel fittings

• DIN EN 10222-5 – Forged stainless steel fittings

• MSS SP-43 – Light-weight buttweld fittings

• JIS B2311 / B2312 – Stainless steel pipe fittings

DIN 1.4301 Flanges

• ASTM A182 / ASME SA182 – Forged flanges

• ASME B16.5 / ASME B16.47 – Pipe flanges and flanged fittings

• EN 1092-1 / EN 1092-2 – European flange standards

• BS 4504 – Circular flanges for pipes, valves & fittings

• JIS B2220 – Pipe flanges

• GOST 12820 / 12821 – Flat & welded flanges

DIN 1.4301 Fasteners

• ASTM A193 / ASME SA193 – Bolts and studs

• ASTM A194 / ASME SA194 – Nuts

• ASTM F593 – Stainless steel bolts, studs, and cap screws

• ASTM F594 – Stainless steel nuts

• ISO 3506 – Mechanical properties of fasteners

• DIN 931 / 933 / 934 / 975 – Bolts, screws, nuts & threaded rods

• BS 6105 – Mechanical fasteners

DIN 1.4301 Valves

• ASTM A182 / ASME SA182 – Forged valves & parts

• API 600 / 602 / 603 – Gate and corrosion-resistant valves

• DIN EN 12516 – Strength requirements for valves

• BS EN 12266 – Testing of metallic valves

• ISO 5208 – Pressure testing of valves

• MSS SP-61 – Pressure testing of steel valves

DIN 1.4301 Gaskets

• ASME B16.20 – Metallic gaskets (spiral wound, ring joint, corrugated)

• ASME B16.21 – Non-metallic flat gaskets for flanges

• DIN EN 1514-1 – Flange gasket dimensions

• BS 4865 – Gaskets for use with flanges

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🏭 Application Industries

• Food & Beverage Processing Equipment

• Pharmaceutical & Sanitary Ware

• Chemical & Petrochemical Plants

• Architectural & Structural Applications

• Springs, Screws, Bolts & Nuts

• Water Treatment & Piping Systems

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🌍 Global Export Reach

We export DIN 1.4301 Stainless Steel products to over 100 countries including:

• North America: USA (New York, Houston, Los Angeles), Canada (Toronto, Vancouver), Mexico

• Europe: UK (London, Manchester), Germany (Berlin, Hamburg), France (Paris, Lyon), Italy (Milan), Spain (Madrid)

• Middle East: UAE (Dubai, Abu Dhabi), Saudi Arabia (Riyadh, Jeddah), Qatar (Doha), Oman, Kuwait

• Asia-Pacific: Singapore, Malaysia, Indonesia, Japan (Tokyo, Osaka), South Korea (Seoul), Australia (Sydney, Melbourne)

• South Asia: Bangladesh, Nepal, Sri Lanka

• South America: Brazil (São Paulo, Rio de Janeiro), Mexico, Chile (Santiago)

• Africa: South Africa (Johannesburg, Cape Town), Nigeria (Lagos), Egypt (Cairo), Kenya (Nairobi)

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✅ Certifications & Quality

• ISO 9001:2015 Certified Manufacturer & Exporter

• EN 10204 3.1 / 3.2 MTCs

• PED & NACE MR0175 Compliant

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

• Full traceability with heat numbers

• Custom fabrication, cut lengths & sizes available

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❓ Frequently Asked Questions (FAQ)

Q1: What is DIN 1.4301 stainless steel?
A: It is the European grade for AISI 304 / UNS S30400, the most widely used stainless steel with excellent corrosion resistance and formability.

Q2: Is DIN 1.4301 suitable for welding?
A: Yes, it offers excellent weldability with or without fillers. For best results, use 308L filler rods.

Q3: Do you export internationally?
A: Yes, we ship to over 100+ countries worldwide, across Europe, Asia, Africa, Middle East & Americas.

Q4: Can I get test certificates?
A: Yes, we supply EN 10204 3.1 / 3.2 certificates, along with chemical, mechanical, and third-party inspection reports.

Q5: Do you offer custom fabrication?
A: Absolutely – we provide cut-to-size sheets, custom fittings, machining, and bending as per project requirements.

Q6: Why choose Dipti Metal Industries?
A: ISO certified, export expertise since 2009, immediate stock availability, fastest global shipping, and competitive pricing.