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UNS S31726 (317LMN) Stainless Steel Supplier, Stockist & Exporter in India

UNS S31726 (317LMN) Stainless Steel Supplier in India – Dipti Metal Industries

Dipti Metal Industries, established in 2009 by Mr. Kumpsingh Rajput, is a trusted Manufacturer, Supplier, Stockist, Dealer, Wholesaler & Exporter of UNS S31726 (317LMN) stainless steel in India.
We deliver a complete range of UNS S31726 products—pipes, tubes, sheets, plates, bars, forgings, flanges, fittings, fasteners & valves—engineered to meet ASTM, EN, DIN, and ISO standards.

🌐 Worldwide Equivalents of UNS S31726

  • 🔹 UNS (USA): S31726 (317LMN)

  • 🔹 AISI (USA): 317LMN (Nitrogen-bearing austenitic stainless steel)

  • 🔹 ASTM (USA): A240 (Plates/Sheets), A312 (Pipes), A213 (Tubes), A182 (Flanges/Forgings), A276/A479 (Bars/Rods)

  • 🔹 EN / DIN (Europe/Germany): 1.4439 – X2CrNiMoN17-13-5

  • 🔹 ISO: X2CrNiMoN17-13-5

  • 🔹 BS (UK): 317S26

  • 🔹 AFNOR (France): Z3CND17-13-05Az

  • 🔹 JIS (Japan): SUS 317J1

  • 🔹 SS (Sweden): 2347

  • 🔹 GOST (Russia/CIS): 03Х17Н13М5

  • 🔹 Trade Names: 317LMN, Alloy 317LMN

✅ Note: UNS S31726 is a modified 317L with higher molybdenum (4–5%) and nitrogen addition (0.1–0.2%), offering enhanced pitting, crevice & chloride resistance compared to 316L and 317L.

🛠️ Product Range – UNS S31726

  • ✅ UNS S31726 Pipes – Seamless & Welded

  • ✅ UNS S31726 Tubes – Heat Exchanger, Boiler & Instrumentation Tubes

  • ✅ UNS S31726 Sheets & Plates – Hot Rolled, Cold Rolled, Strip, Shim, Coil

  • ✅ UNS S31726 Bars & Rods – Round, Flat, Hex, Bright, Forged Bars

  • ✅ UNS S31726 Forgings – Shafts, Slugs, Custom Forged Shapes

  • ✅ UNS S31726 Flanges – Weld Neck, Slip-On, Blind, Threaded, Lap Joint, Socket Weld

  • ✅ UNS S31726 Pipe Fittings – Elbows, Tees, Reducers, Caps, Stub Ends, Crosses

  • ✅ UNS S31726 Fasteners – Bolts, Nuts, Studs, Screws, Washers

  • ✅ UNS S31726 Valves – Gate, Globe, Ball, Butterfly & Check Valves

⚗️ Chemical Composition (% by weight)

  • Cr: 17–20%

  • Ni: 13.5–17.5%

  • Mo: 4–5%

  • N: 0.10–0.20%

  • C: ≤ 0.03%

  • Si: ≤ 0.75%

  • Mn: ≤ 2.0%

  • P: ≤ 0.045%

  • S: ≤ 0.03%

⚙️ Mechanical Properties

  • 🔧 Tensile Strength: ~614 MPa

  • 🔧 Yield Strength: ~317 MPa

  • 🔧 Elongation: ~53%

  • 🔧 Hardness: ~80 HRB

🏭 Applications of UNS S31726

  • 🚀 Chemical & Petrochemical Plants: Flue gas scrubbers, heat exchangers, tanks

  • 🚢 Marine Engineering: Seawater-cooled systems, pumps, valves

  • 🏗️ Pulp & Paper Industry: Digesters, bleaching towers, washers

  • 🧪 Food & Beverage Industry: Equipment in acidic or chloride-rich conditions

  • ⚡ Pollution Control Systems: FGD absorbers & chimneys

📜 Certifications

  • ✅ ISO 9001:2015 | ISO 14001:2015 | ISO 45001:2018

  • ✅ PED 2014/68/EU | CE Marking

  • ✅ EN 10204 3.1 / 3.2 Test Certificates

  • ✅ TUV, SGS, BV Approved Supply

❓ Frequently Asked Questions (FAQ)

Q1. What is UNS S31726?
A nitrogen-alloyed austenitic stainless steel (317LMN) with high Mo & N, designed for superior corrosion resistance.

Q2. How does UNS S31726 compare to 316L/317L?
It provides better pitting, crevice & chloride resistance and improved strength at high temperatures.

Q3. What forms do you supply in UNS S31726?
Pipes, tubes, plates, bars, flanges, fittings, forgings, fasteners, and valves.

Q4. Is UNS S31726 weldable?
Yes ✅ Its low carbon minimizes sensitization during welding.

Q5. Do you export globally?
Yes 🌍 We export UNS S31726 to Asia, Europe, Middle East, USA, Africa, and Latin America.

📞 Get a Quote

Looking for a UNS S31726 (317LMN) stainless steel Manufacturer, Supplier, Stockist, Dealer, Wholesaler & Exporter in India?

📧 Email: sales@diptimetal.com
📞 Call / WhatsApp: +91-9975266499

Dipti Metal Industries delivers UNS S31726 pipes, tubes, plates, bars, fittings, flanges & fasteners with certifications and worldwide delivery.