Stockholder, Supplier and Exporter of 317L PIPE FITTINGS in India, STAINLESS STEEL 317L PIPE BENDS, SS 317L ELBOW, SS 317L TEE, SS 317L REDUCER, STUB END

Why us?

“We’ve proven that we are competitive in India, Brazil, Houston & UAE. Our 317L PIPE FITTINGS, buttweld fittings & forged fittings are of European origin, have recognised quality and the required traceability. A number of Inian & Brazilian companies have been DM Special Steel Ltd clients for years through our international sales network.”

DM Special Steel Ltd Pipe Fitting Inventory

Stainless Steel Tradename UNS no. Werkstoff No.
317L 317L Stainless S31703 1.4438

DM Special Steel Ltd is a leading manufacturer and supplier of stainless steel 317L (1.4438) buttweld pipe fittings and flanges. DM Special Steel Ltd offers a complete range of stainless steel 317L pipe fittings such as SS 317L reducer, SS 317L elbow, SS 317L tee, SS 317L cross, SS 317L end caps, SS 317L stub ends and SS 317L pipe bends. Stainless steel 317L pipe fittings are manufactured in compliance with ASTM A-403 and ANSI B16.9 / 16.28/ MSS SP-43 / Welding Bevel Standards ANSI B 16.25.

We specialise in the manufacture and supply of SS 317L pipe bends in both standard and non standard sizes, with bending radius of 1D to 10D or any other custom bending radius. We offer ex-stock delivery of various standard size and type SS 317L pipe fittings, SS 317L flanges and SS 317L pipe bends. Our specialty is to manufacture and supply large size fabricated 100% radiography tested SS 317L elbows, SS 317L reducers, SS 317L tees and SS 317L large diameter fabricated pipes.

Stainless steel 317L is commonly referred as UNS S31700, and is primarily comprised of 18% to 20% chromium and 11% to 15% nickel. 317L is molybdenum bearing austenitic stainless steel similar to 316, but with higher molybdenum content.

317L offers higher creep, stress-to-rupture, and tensile strength at elevated temperatures than conventional stainless steels. It is a low carbon grade which provides resistance to sensitization during welding and other thermal processes.

DM Special Steel Ltd also stocks and supplies a complete range of SS 317L pipes to complement our existing production range of SS 317L buttweld fittings and SS 317L flanges. Stainless steel 317L pipes can be supplied in cut to length sizes and also machined or fabricated to meet your custom piping requirements.

Key Properties of Stainless Steel 317L Pipe Fittings, SS 317L Flanges

  • High corrosion resistance in tough environments
  • Lower intergranular precipitation
  • High resistance to pitting and crevice corrosion

Common Applications – SS 317L Pipe Fittings, 317L Flanges

  • Pulp and paper manufacturing plants
  • Chemical processing equipment
  • Petrochemical processing equipment
  • Textile machinery and equipment
  • Vessels and tanks

SS 317L Pipe Fittings Production Range

Specification ASTM A182 / A403 & ASME SA182 / SA403
Type Seamless / Welded / Fabricated
Variants 317L
Bending Radius R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom
Range ½”NB to 48”NB in Sch 10s, 40s, 80s, 160s, XXS.
Dimensions ANSI/ASME B16.9, B16.28, MSS-SP-43.

Buttweld Stainless Steel 317L Pipe Fittings

Seamless/ Welded 100% Radiography Tested

Products Size
SS 317L Elbows – Long Radius SS 317L Stub Ends

Sizes 1/2″ – 48″

SS 317L Elbows – Short Radius SS 317L Crosses
SS 317L Reducing Elbows SS 317L Reducing Crosses
SS 317L 45° Elbows SS 317L 180° LR Return Bends
SS 317L Tees SS 317L 180° SR Return Bends
SS 317L Fabricated Tees SS 317L Pipe Bends / Piggable Bends
SS 317L Reducers SS 317L Couplings
SS 317L Concentric Reducers SS 317L Pipe Nipples
SS 317L Eccentric Reducers SS 317L Forged/Plate Cut Rings
SS 317L 3D Elbow SS 317L End Caps
SS 317L 5D Elbow SS 317L Forged / Plate Circles

High Pressure Forged 317L Pipe Fittings

Threaded and Socket Weld Pipe Fittings

Products Size
SS 317L 90° Elbows SS 317L Couplings

Sizes 1/8″ – 4″

Pressure Ratings -
2000 LBS, 3000 LBS, 6000 LBS, 9000 LBS

SS 317L 45° Elbows SS 317L Reducers
SS 317L Street Elbows SS 317L Inserts
SS 317L Tees SS 317L Caps
SS 317L Crosses SS 317L Unions

Stainless Steel 317L Flanges

Forged and Plate Flanges

Specification ASTM A182 / A240 & ASME SA182 / SA240
Grade 317L
Standard ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
Size 1/8” to 36″
Dimensions ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
Class / Pressure 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.


Product Size
SS 317L Slip-On Flanges SS 317L Threaded Flanges

1/8″ – 36″

Raised Face or Flat Face

SS 317L Weld Neck Flanges SS 317L Socket Weld Flanges
SS 317L Blind Flanges SS 317L Reducing Flanges
SS 317L Lap Joint Flanges SS 317L Plate Flanges

Marking & Packing

Products are packaged to ensure that there is no damage during transit. In case of exports, standard export packaging is done in wooden cases. All fittings and flanges are marked with Grade, Lot No, Size, Degree and our trade mark. On special requests we can also, make custom marking on our products.

Quality Assurance

At DM Special Steel Ltd, all fittings and flanges are subject to strict inspection at each stage of the production process, from starting material purchasing to product dispatch. They are visually examined for conformity to ASTM, ASME, MSS, DIN, EN, and JIS codes and standards. Upon request, official certified Inspection Agencies can be called in to witness the material reports, dimensions and quality conformity of products.

Test Certificates: 
Manufacturer Test Certificate as per EN 10204 / 3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report

For more information on our range of pipe fitting, please contact us today.

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