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DIPTI METAL INDUSTRIES

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DIN 1.4539 SUPPLIER IN INDIA

DIN 1.4539 (AISI 904L / UNS N08904) Supplier in India – Dipti Metal Industries

Company Overview

Dipti Metal Industries, based in Mumbai, India, is a leading DIN 1.4539 (AISI 904L) Supplier, Manufacturer, Stockist, Dealer, and Exporter. Founded in 2009 by Mr. Kumpsingh Rajput, we supply to more than 56+ countries worldwide under the globally recognized “DIPTI” brand.

We provide a complete range of DIN 1.4539 Pipes, DIN 1.4539 Pipe Fittings, DIN 1.4539 Flanges, DIN 1.4539 Fasteners, DIN 1.4539 Valves, and DIN 1.4539 Gaskets, meeting global quality and certification standards.

📧 Contact: info@diptimetal.in

🔹 About DIN 1.4539 (904L)

DIN 1.4539, also known as AISI 904L, UNS N08904, or X1NiCrMoCu25-20-5, is a super-austenitic stainless steel enriched with high levels of nickel, chromium, molybdenum, and copper. It is especially suitable for severe corrosion environments.

Key Features:

  • Superior resistance to sulfuric, phosphoric, and acetic acids

  • Excellent resistance to pitting, crevice, and stress corrosion

  • Strong performance in chloride-rich and seawater conditions

  • Good weldability and formability

  • Non-magnetic in annealed condition

🔹 International Equivalents

  • DIN / EN: 1.4539 – X1NiCrMoCu25-20-5

  • AISI / ASTM: 904L

  • UNS (USA): N08904

  • JIS (Japan): SUS904L

  • BS (UK): 904S13

  • AFNOR (France): Z2NCDU25-20

  • ISO: 904L

🔹 Chemical Composition

Element Range %
C≤ 0.02
Cr19.0–23.0
Ni23.0–28.0
Mo4.0–5.0
Cu1.0–2.0
Mn≤ 2.0
Si≤ 1.0
P≤ 0.045
S≤ 0.035

🔹 Mechanical Properties

  • Tensile Strength (Rm): 490–730 MPa

  • Yield Strength (Rp0.2): ≥ 220–230 MPa

  • Elongation: ≥ 35%

  • Hardness: ≤ 220 HB

🔹 Physical Properties

  • Density: 8.0 g/cm³

  • Elastic Modulus: ~195–200 GPa

  • Thermal Conductivity: ~12 W/m·K

  • Specific Heat: 450–500 J/kg·K

  • Non-Magnetic in annealed condition

🔹 Standards & Specifications

  • ASTM A182 – Forged flanges, fittings, valves

  • ASTM A240 – Plates and sheets

  • ASTM A312 – Seamless and welded pipes

  • ASTM A403 – Pipe fittings

  • ASTM A276 – Bars and rods

  • EN 10088 / EN 10216 / EN 10217 – Stainless steel standards

🔹 Product Supply Range – DIN 1.4539

  • DIN 1.4539 Pipes & Tubes: Seamless, welded, fabricated

  • DIN 1.4539 Pipe Fittings: Elbows, tees, reducers, caps, stub ends

  • DIN 1.4539 Flanges: Weld Neck, Slip-On, Blind, Socket Weld, Threaded

  • DIN 1.4539 Fasteners: Bolts, Nuts, Studs, Washers, Screws

  • DIN 1.4539 Plates & Sheets: Standard and custom cuts

  • DIN 1.4539 Bars & Rods: Round, flat, hexagonal

  • DIN 1.4539 Valves & Gaskets: Industrial-grade supply range

🔹 Applications

  • Chemical and petrochemical industry equipment

  • Offshore platforms and marine applications

  • Seawater desalination systems

  • Flue gas desulfurization (FGD) plants

  • Pulp and paper industry

  • Pharmaceutical and food processing plants

  • Heat exchangers, boilers, and pressure vessels

🌍 Global Export Reach

We export DIN 1.4539 (AISI 904L) products to:

  • 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 shipped via Nhava Sheva, Mundra, Kandla, Chennai, Hazira, Cochin, Vizag, Kolkata ports.

🔹 Certifications & Quality

  • ISO 9001:2015 Certified

  • EN 10204 3.1 / 3.2 Material Test Certificates

  • PED & NACE MR0175 Compliance

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

  • Complete Traceability with Heat Numbers

❓ Frequently Asked Questions (FAQ)

Q1: What is DIN 1.4539 also called?
A: It is also known as AISI 904L, UNS N08904, or SUS904L.

Q2: Why choose DIN 1.4539 over 316L?
A: DIN 1.4539 offers superior resistance to strong acids and chlorides.

Q3: Can DIN 1.4539 be welded?
A: Yes, it has excellent weldability with minimal risk of sensitization.

Q4: Where is DIN 1.4539 used most?
A: Chemical, offshore, marine, pulp & paper, and pharmaceutical industries.

Q5: What are its mechanical strengths?
A: Tensile 490–730 MPa, yield ≥ 220 MPa, elongation ≥ 35%.

Q6: Is DIN 1.4539 magnetic?
A: No, it remains non-magnetic when annealed.

Q7: What certifications are available?
A: ISO, EN 10204, PED, NACE, and third-party inspection.

Q8: Can DIN 1.4539 be hardened?
A: No, only through cold working, not heat treatment.

Q9: What is its density?
A: 8.0 g/cm³.

Q10: Why choose Dipti Metal Industries?
A: Certified quality, wide product range, strong global exports, competitive pricing, and proven reliability.

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