DIN 1.4435 (AISI 316L / UNS S31603) Supplier in India – Dipti Metal Industries

Company Overview

Dipti Metal Industries, headquartered in Mumbai, India, is a trusted DIN 1.4435 (AISI 316L) Supplier, Manufacturer, Stockist, Dealer, and Exporter. Founded in 2009 by Mr. Kumpsingh Rajput, we have established a strong global footprint, supplying stainless steel products to more than 56 countries under the respected “DIPTI” brand.

We supply DIN 1.4435 Pipes, DIN 1.4435 Pipe Fittings, DIN 1.4435 Flanges, DIN 1.4435 Fasteners, DIN 1.4435 Valves, and DIN 1.4435 Gaskets, with full certification and third-party inspection available.

📧 Contact: info@diptimetal.in

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🔹 About DIN 1.4435 (316L)

DIN 1.4435, also designated as AISI 316L or UNS S31603, is a low-carbon molybdenum-bearing austenitic stainless steel. Its reduced carbon content provides excellent weldability and resistance to intergranular corrosion, while the molybdenum enhances resistance to chlorides, acids, and aggressive environments.

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🌍 International Equivalents

• DIN / EN (Europe): 1.4435 – X2CrNiMo18-14-3

• AISI / ASTM (USA): 316L

• UNS (USA): S31603

• JIS (Japan): SUS 316L

• BS (United Kingdom): 316S11 / 316S31

• AFNOR (France): Z3CND18-14-03 / Z2CND17-12

• ISO (International): 316L Stainless Steel

• GOST (Russia): 03Ch17N14M3 / 03Х17Н14М3

• SS (Sweden): 2348

• NFA (France): Z2CND18-14

• UNI (Italy): X2CrNiMo18-14-3

• ÖNORM (Austria): X2CrNiMo18-14-3

• CSA (Canada): 316L

• China (GB): 022Cr17Ni12Mo2

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🔹 Chemical Composition (Typical %)

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🔹 Mechanical Properties

• Yield Strength (Rp0.2): ≥ 170 MPa

• Tensile Strength (Rm): 485 – 620 MPa

• Elongation (A5): ≥ 40%

• Hardness: ≤ 200 HB

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🔹 Physical Properties

• Density: 8.0 g/cm³

• Elastic Modulus: ~193 GPa

• Thermal Conductivity (at 100°C): ~16 W/m·K

• Specific Heat: ~500 J/kg·K

• Magnetic Properties: Non-magnetic in annealed condition

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🔹 Standards & Specifications

Pipes & Tubes

• ASTM A312 / ASME SA312 – Seamless and welded pipes

• ASTM A213 / ASME SA213 – Seamless 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 steel tubes

Plates & Sheets

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

• EN 10028-7 – Flat products for pressure purposes – Stainless steels

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

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

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

Pipe Fittings

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

• DIN EN 10222-5 – Forged stainless steel fittings

• MSS SP-43 – Lightweight stainless steel buttweld fittings

• JIS B2311 / B2312 – Stainless steel pipe fittings

Flanges

• ASTM A182 / ASME SA182 – Forged stainless steel flanges

• DIN EN 1092-1 / 1092-2 – European flanges

• BS 4504 – Circular flanges

• JIS B2220 – Pipe flanges

• GOST 12820 / 12821 – Flat and welded flanges

Fasteners

• ASTM A193 / ASME SA193 – Stainless steel bolts and studs

• ASTM A194 / ASME SA194 – Stainless steel nuts

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

• ASTM F594 – Stainless steel nuts

• ISO 3506 – Stainless steel fasteners mechanical properties

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

• BS 6105 – Stainless steel fasteners

Valves

• ASTM A182 / ASME SA182 – Forged stainless steel valves and parts

• API 600 / 602 / 603 – Gate valves 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

Gaskets

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

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

• DIN EN 1514-1 – Flanges and joints – gasket dimensions

• BS 4865 – Gaskets for use with flanges

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🔹 Product Supply Range – DIN 1.4435

• DIN 1.4435 Pipes & Tubes: Seamless, welded, fabricated

• DIN 1.4435 Pipe Fittings: Elbows, Tees, Reducers, Caps, Stub Ends

• DIN 1.4435 Flanges: Weld Neck, Slip-On, Blind, Socket Weld, Threaded

• DIN 1.4435 Fasteners: Bolts, Nuts, Studs, Washers, Screws

• DIN 1.4435 Plates & Sheets: Hot-rolled, cold-rolled, cut sizes

• DIN 1.4435 Bars & Rods: Round, Flat, Hexagonal, Forged

• DIN 1.4435 Valves & Gaskets: Complete industrial supply

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🔹 Applications

• Food and pharmaceutical equipment

• Chemical and petrochemical industries

• Marine and seawater environments

• Pulp and paper plants

• Heat exchangers, pressure vessels, pipelines

• Water treatment and desalination

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🌍 Global Export Reach

We export DIN 1.4435 (AISI 316L) 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

Shipped through 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 Material Test Certificates

• PED & NACE MR0175 Compliant

• Third-party inspections: TÜV, SGS, BV, DNV

• 100% traceability with heat numbers

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❓ Frequently Asked Questions (FAQ)

Q1: What is DIN 1.4435 also called?
A: AISI 316L, UNS S31603, SUS 316L, X2CrNiMo18-14-3.

Q2: Why choose DIN 1.4435 over 304?
A: It has better resistance to chlorides and acids due to molybdenum content.

Q3: Can DIN 1.4435 be welded?
A: Yes, its low carbon ensures excellent weldability without sensitization.

Q4: Where is DIN 1.4435 used?
A: Food, pharma, chemical, marine, and water treatment applications.

Q5: What are its mechanical strengths?
A: Yield ≥ 170 MPa, tensile 485–620 MPa, elongation ≥ 40%.

Q6: Is it magnetic?
A: No, non-magnetic in annealed condition.

Q7: Can it be hardened?
A: Not by heat treatment, only by cold working.

Q8: What certifications are supplied?
A: ISO, EN 10204 MTCs, PED, NACE, third-party inspection.

Q9: What’s the PREn value?
A: Around 24–25, providing good pitting resistance.

Q10: Why Dipti Metal Industries?
A: Certified quality, strong global network, competitive pricing, and over 15 years of expertise.