ASTM A182 317L Stainless Steel Union Manufacturer, Manufacturer of SS 317L Union, ASTM A182 317L Pipe Union supplier, Stainless Steel 317L Union Fitting manufacturer

SS 317L Union Stockist, SS 317L Seamless Union Stockholder, AISI 317L Forged Union Dealers in Mumbai, SS 317L Threaded Union Dealer, ANSI B16.9 Stainless Steel 317L Union Distributor, EN 1.4438 Union stockholder in India

Looking for Alloy 317L ASTM A182 317L Screwed Union traders in India? Manufacturer of ANSI B16.9, ANSI B16.28, MSS SP-43, MSS SP-79 Stainless Steel 317L Union Suppliers, SUS 317L Threaded Union Stockist, Supplier of INOX 317L ASTM A182 317L Stainless Steel Union, Alloy 317L Butt Weld Union distributor near you, A403 UNS S31703 Union dealer, DIN 1.4438 Union Wholesaler, UNS S31703 Buttweld Union stockist

317L Stainless Steel Union Manufacturer

317L Stainless Steel Union Manufacturer

What is 317L Stainless Steel Union?

317L Stainless Steel Union, similar to a coupling, allows the convenient future disconnection of pipes for maintenance or fixture replacement. In contrast to a coupling requiring solvent welding, soldering, or rotation (for threaded couplings), an AISI 317L Union allows easy connection and disconnection, multiple times if needed.

SS 317L Union consists of three parts: a nut, a female end and a male end. When the female and male ends are joined, the nut seals the joint by pressing the two ends tightly together. Grade 317L Stainless Steel Unions are a type of very compact flange connector.

Steber Steel is only Supplier in India who maintains Large Diameter and High Thickness ASTM A182 Seamless, Welded Stainless Steel 317L Union. All SS 317L Union are manufactured in India, with raw materials coming from reputed Mills in India enable us for prompt delivery to countries like Dubai, Ras Al Khaimah, UAE, Kuwait, Qatar, Saudi Arabia, Turkey, Israel, Iraq, Iran, Oman, Bahrain, Nigeria, Kenya, Mozambique, South & West Africa, Indonesia, Malaysia, Singapore, Thailand & Philippines in any emergency or industrial break down..

We are manufacturer and supplier of 317L Stainless Steel Union, SS 317L union pipe fitting, SAE 317L Compression Pipe Union, SS 317L Dielectric Pipe Union, AISI 317L Ground Joint Pipe Union, SS 317L Union Conical Female/ Female NPT, Pipe Union, Weld Pipe Union, steel union fitting, stainless steel union fitting, alloy union fitting and alloy steel union fitting in a wide range sizes, surface treatment, and ASTM standards. UNS S31703 | WNR 1.4438 | Alloy 317L. We produce these Stainless Steel 317L Union as per international standards of ASTM A182/SA403 or A182/SA182

317L Stainless Steel Union Specification

Product Name: 317L Stainless Steel Union
We accept all small/large quantity orders.

Wrought Austenitic Stainless Steel 317L SCH 5 Union manufacturer, high quality Stainless Steel 317L Union Suppliers in India, 317L SS SCH 10 Union manufacturer, SS Grade 317L SCH 40 Union stockist, SS 317L SCH 80 Union stockholder, ASTM A182 317L NPT Threaded Union for Sale, ASTM A182 317L Stainless Steel Reducing Union at Best Price

  • 317L Grade: SUPER AUSTENITIC 317L Union/ SS 317L Union/ WNR 1.4438 Union/ UNS S31703 Union/ AISI 317L Union/ SUS 317L Union/ INOX 317L Union/ Alloy 317L Union/ SS317L Union/ Stainless Steel SUS 317L Union/ ANSI 317L Union/ Steel 317L Union/ Stainless Steel UNS S31703 Union/ SAE 317L Union/ ASME SA403 SS 317L Union/ SS 2367 / Stainless Steel DIN 1.4438 / Type 317L / X 2 CrNiMo 18 16 / SS317L
  • Typical manufacturing specifications: ASTM A182 317L, ASTM A182 317L, ASME SA403 317L, ASME SA403 317L, SAE J405
  • S 317L Union Manufacturing Standards: ASME: ANSI B16.9, ANSI B16.11, ANSI B16.28, MSS-SP-43, DIN: DIN2605, DIN2615, DIN2616, DIN2617, DIN28011, EN: EN10253-1, EN10253-2, BS 4504, EN-1092, JISB2311, JIS B2312, JIS B2313, DIN 2605, DIN 2606, DIN2615, DIN2616, BG12459-90, GB/T13401, HGJ514, SH3408, SH3409, HG/T21635, HG/T21631
  • Size Range: 1/8” NB TO 48” NB. (Seamless & 100% X-Ray Welded, Fabricated)
  • Thickness: SCH: 5s, 10s, 40s, 80s, 10, 20, 40, STD, 60, 80, XS, 100, 120, 140, 160, XXS, Custom Thickness
  • Origin: European Origin, Indian Origin, US Origin, Korean Origin, Sweden Origin, Ukraine Origin, Japanese Origin Materials
  • Top 10 Manufacturer of 317L Union: Raccortubi S.p.A. Pipe Union, Italy, Erne Fittings Pipe Union, Austria, Melesi Pipe Union, Italy, Mega Pipe Union, Italy, Ulma Pipe Union, Spain, TecnoForge Pipe Union, Italy, BENKAN Corporation Pipe Union, Japan, BKL- Thai Benkan Pipe Union, Thailand, Lame S.r.l. Pipe Union, Italy, Metal far Pipe Union, Italy, Steber Steel, India
  • Great offer on: Pipe caps– DIN 28011 / EN 10253 (DIN 2617), Pipe Elbow -EN 10253 type A (DIN 2605), Pipe Tee/ T-pieces with same outlet – EN 10253 type A (DIN 2615), Concentric reducers- EN 10253 type B (DIN 2616)
  • Delivery: 15-20 days
  • Application: Research, science, and industry for sterile and aseptic process engineering.
  • Material: DIN 1.4305, DIN 1.4301, DIN 1.4307, DIN 1.4948, DIN 1.4401, DIN 1.4404, DIN 1.4919, DIN 1.4571, DIN 1.4541, DIN 1.4878, DIN 1.4460, DIN 1.4550, DIN 1.4961, DIN 1.4840, DIN 1.4845, DIN 1.4449, DIN 1.4438, DIN 1.4841, DIN 1.4006, DIN 1.4005, DIN 1.4021, DIN 1.4016, DIN 1.4104, DIN 1.4057, DIN 1.4125, DIN 1.4762, DIN 1.4742, DIN 1.4438, DIN 1.4542, DIN 1.4545, DIN 1.4534, DIN 1.4980, DIN 1.3964
  • Value Added Service: Polish (Electro & Commercial), Heat Treatment, Annealed & Pickled, Sand Blasting, Machining Etc.

Types of 317L Stainless Steel Union

  • 317L Union supplier
  • Supplier of Stainless Steel 317L Union
  • 317L Stainless Steel Union manufacturer
  • Manufacturer of 317L Stainless Union
  • SS 317L Union stockist in India manufacturer
  • Alloy 317L Stainless Steel Union
  • AISI 317L Union supplier
  • SUS 317L Union manufacturer
  • Manufacturer of INOX 317L Union
  • Manufacturer of Alloy 317L Union
  • ASTM A182 Stainless Steel 317L Union
  • WNR 1.4438 Union supplier
  • UNS S31703 Union manufacturer
  • Manufacturer of Super Austenitic 317L Union
  • Grade 317L Stainless Steel Union
  • Stainless Steel Union Grade 317L
  • Manufacturer of SS DIN 1.4438 Union
  • SS317L Union manufacturer
  • Manufacturer of Stainless Steel SUS 317L Union
  • Stainless Steel DIN 1.4438 Union
  • ANSI 317L Union manufacturer
  • Manufacturer of Steel 317L Union
  • 317L Stainless Steel NPT Threaded Union
  • Type 317L manufacturer in India
  • Manufacturer of Stainless Steel UNS S31703 Union
  • SAE 317L Union supplier
  • ASME SA403 SS 317L Union
  • ASTM A182 317L Union
  • ASME SA403 Union manufacturer
  • ASTM A182 UNS S31703 Union
  • ASME SA403 UNS S31703 Union manufacturer
  • 317L Stainless Steel Seamless Union
  • ASTM A182 Seamless Union exporter
  • 317L Stainless Steel Welded Union
  • ASTM A182 Welded Union manufacturer
  • ASTM A182 WP 317L Union
  • Manufacturer of 317L Stainless Steel Forged Union
  • ASTM A182 Weld Union supplier
  • 317L Stainless Steel Threaded Union
  • Manufacturer of 317L Stainless Steel Screwed Union
  • 317L Stainless Steel Butt Weld Union
  • Manufacturer of 317L Stainless Steel Buttweld Union
  • SS 317L SCH 5 Union manufacturer
  • 317L Stainless Steel SCH 10 Union
  • SS 317L SCH 40 Union manufacturer
  • Manufacturer of SS 317L SCH 80 Union
  • 317L Stainless Steel Reducing Union
  • 317L Stainless Steel Sanitary Union
  • Manufacturer of ASTM A182 317L 36" Union
  • ASTM A182 317L 24" Union SCH XXS
  • ASTM A182 317L 36" SCH 160 Union
  • Manufacturer of ASTM A182 317L 24" Union SCH 80S
  • ASTM A182 317L Union 24" x 12" SCH 160
  • ASTM A182 317L Seamless Union manufacturer
  • ASTM A182 317L 100% X-Ray Welded Union
  • Manufacturer of ASTM A182 317L ANSI B16.9 Union
  • Manufacturer of Seamless Union, ASTM A182 WP Grade

317L Stainless Steel Union Packaging & Shipping:

317L Stainless Steel Union Manufacturer

317L Stainless Steel Union Packed

SS 317L Union Packing: We focus on every procedure to assure quality, the package we usually take is pack WNR 1.4438 Union with environmental poly bags, and then in free fumigation wooden cases or wooden palte. Also can accept customized package such as OEM by negotiation.

Steber Steel offers just about everything to meet your UNS S31703 Union pack requirements. Lot of emphasis is placed on the packing and packaging. The AISI 317L Union are packed in wooden corrugated boxes foiled in plastic wraps and bubble wraps.

317L Stainless Steel Union Marking: All SUS 317L Union are marked with size and specification. Or as per customer’s requirement;

So, besides the fact that we can arrange freight transportation for you, we can before that:

  • Specifically mark parts or packages;
  • Provide for a special packing according to what is required by the shipping method or by you.

We mark the INOX 317L Union as needed with the most suitable marking technique.

When packaging and packing, our experienced warehouse staff systematically takes the greatest precautions for your Alloy 317L Union to be optimally protected during transportation. We pack the SS317L Union according to the appropriate method: strapped pallet, wooden crate, overseas packing (ISPM15).

Markings on the Stainless Steel 317L, UNS S31703,  WNR 1.4438 Union

The full identification of the Union should be continuously marked down its whole length, including:

  1. Nominal Union Size of 317L Union
  2. Schedule (Wall Thickness) eg SCH 40 SS 317L Union
  3. Specification of SS 317L Union
  4. Grade of Alloy 317L Union
  5. Method of Manufacture (Seamless or Welded) of of SS 317L Union
  6. Heat Number for of SS 317L Union
  7. Manufacturer’s Name or Symbol of of 317L SS Union
  8. Customized marking available for SS 317L Union

CONTACT US FOR A QUICK QUOTE, Get 317L Stainless Steel Elbow price list, send an email to us at

317L Stainless Steel Union Dimensions

317L Stainless Steel Union Dimensions

Nom. Pipe Size Pipe End Min Socket Bore Dia. Socket Wall Min. Water Way Bore Laying Length Male Flange Min. Nut Min. Threads Per 25.4 Max Bearing Min. Depth of Socket Min. Length Assem. Nominal Clear Assem. Nut
  A B C D E F G H J K L N
1/8 21.8 10.92
3.17 6.83
3.17 3.17 16 1.24 9.6 41.1 49.0
¼ 21.8 14.22
3.30 9.85
3.17 3.17 19 1.24 9.6 41.4 49.0
3/8 25.9 17.78
3.48 13.92
3.43 3.43 14 1.37 9.6 46.0 55.0
½ 31.2 21.84
4.06 17.47
3.68 3.68 14 1.50 9.6 49.0 57.0
¾ 37.1 27.18
4.27 21.79
4.06 4.06 11 1.68 12.7 56.9 67.0
1 45.5 34.04
4.95 28.14
4.57 4.44 11 1.85 12.7 62.0 79.0
11/4 54.9 42.67
5.28 35.76
5.33 5.21 11 2.13 12.7 71.1 94.0
11/2 61.5 48.77
5.54 41.61
5.84 5.59 10 2.31 12.7 75.5 111.0
2 75.2 61.47
6.05 52.53
6.60 6.35 10 2.69 15.8 86.1 132.0
21/2 91.7 74.17
7.65 64.72
7.49 7.11 8 3.07 15.8 102.4 148.0
3 109.2 90.17
8.31 77.67
8.25 8.00 8 3.53 15.8 109.0 175.0

SS 317L Other Products Stock List

ASTM A182 317L Sanitary Union suppliers, 317L Stainless Seamless Union manufacturers, manufacturer of Stainless Steel 100% X-Ray Welded Union 317L, ASTM A182 WP 317L ANSI B16.9 Union dealer, Distributor of WP 317L Stainless Steel Weld Union, 317L Stainless Steel 36" Union, supplier of 317L Stainless Steel 24" Union SCH XXS, 317L Stainless Steel 36" SCH 160 Union exporter in India

317L Stainless Steel Union Chemical Composition

Chemical Composition, %






11.0 – 15.0

18.0 – 20.0

3.0 – 4.0

2.0 Max

.75 Max






0.03 Max

0.1 Max

0.03 Max

0.045 Max


317L Stainless Steel Union Mechanical Properties

Ultimate Tensile Strength, ksi Minimum

.2% Yield Strength, ksi Minimum

Elongation Percent

Hardness Max.




217 Brinell

Physical Properties of 317L Stainless Steel Union

Density: 0.285 lb/inch3 
Melting Point: 2540 – 2630°F 
Poisson’s Ratio: 0.3 
Electrical Resistivity: 475 Ohm-circ mil/ft

Temperature, °F 70 212 392 572
Coefficient* of Thermal Expansion, in/in°F x 10-6 9.2 10.1 10.8
Thermal Conductivity
Btu • ft/ft2 • hr • °F
Modulus of Elasticity Dynamic, psi x 106 29

* 70°F to indicated temperature.

317L Material Specifications



Old British

Euronorm (DIN)



DIN Name

Type 317L


317 S 12



Normen KS AFNOR NAS Japanese JIS
  STS317L/ D3693/G3601 Z 2 CND 19-15 NAS 317L SUS 317L


AISI 317L 
UNS S31703
X2CrNiMo1815 SUS317L
DIN X2CrNiMo18-15-4, DIN X2CrNiMo1864, ANFOR Z2CND19-15-04, ANFOR Z3CND19-15-04, UNI X2CrNiMo1815, JIS SUS317L, JIS SUS317LFB, JIS SUS317LTB, JIS SUS317LTP, JIS SUSF317L, JIS SUSY317L, AISI 317L, UNS S31703

317L Stainless Steel Union Possible Alternative Grades

317L Stainless Steel Union Equivalent Grades
British German
AISI UNS Swedish Japanese
Type Bs Eu W.No. DIN
317 S31700 317S16 1.4449 X 5 CrNiMo 17 13 -SUS 317
317L S31703 317S12 1.4438 X 2 CrNiMo 18 16 2367 SUS 317L

SUS 317L Union Heat Resistance

Significantly better corrosion resistance that T-316 in the same environments. Good oxidation resistance in continuous service to 925°C and in intermittent service to 879°C.

AISI 317L Union Heat Treatment

AISI 317L Union is non-magnetic in the annealed condition and is non-hardenable by heat treatment. Machinability is 39% – 65 surface feet per minute.

SS 317L Union Fabrication

Alloy 317L Union can be easily welded and processed by standard shop fabrication practices.

317L Stainless Steel Union producing through Cold forming

Shearing, stamping, heading and drawing can be successfully performed . To remove internal stresses, a post-work annealing is recommended.

Stainless Steel 317L Union Machining

Low speeds and constant feeds will minimize this alloy’s tendency to work harden. Tougher than 304 stainless Union with a long stringy chip, the use of chip breakers is recommended.

317L Union Welding

Alloy 317L Union can be readily welded by most standard processes. A post weld heat treatment is not necessary. 317L is readily welded by a full range of conventional welding procedures (except oxyacetylene). AWS E317L/ER317L filler metal or austenitic, low carbon filler metals with molybdenum content higher than that of 317L, or a nickel-base filler metal with sufficient chromium and molybdenum content to exceed the corrosion resistance of 317L should be used to weld 317L steel.

Alloy 317L Union Hot Forming

AISI 317L Union is non-magnetic in the annealed condition and is non-hardenable by heat treatment. Machinability is 39% – 65 surface feet per minute.

317L Stainless Steel Union Applications & Usage:

Some of the major applications of grade stainless steel 317L Union include:

  • SAE 317L Union for Air Pollution Control- scrubbers for coal-fired power plants
  • UNS S31703 Union mainly used for Seawater cooling devices
  • SS 317L Union can be use in Wiring in electrostatic precipitators
  • WNR 1.4438 Union are used in Oil refinery components
  • AISI 317L Union also useful for Gas scrubbing plants
  • SUS 317L Union are commonly used by Pulp and paper processing industries
  • INOX 317L Union are also suitable for Acetic, phosphoric and sulphuric acid processing plants
  • Alloy 317L Union available for Oil and Gas Production- offshore process equipment
  • Offshore, sea water technology, chemical industry, good stability against reducing acids of medium strength like sulphuric acid and phosphoric acid and various chloric media, refinery, paper industry, pulp industry

Export Destinations for 317L Stainless Steel Union

Steber Steel is a leading exporter and distributor of stainless steel 317L Union in India and international markets such as Malaysia, Iran, Germany, UK, Canada, UAE, Bahrain, Indonesia, Mexico, Chile, Brazil, Peru, Nigeria, Kuwait, Jordan, Thailand (Bangkok), Saudi Arabia, Venezuela, Russia, Turkey, Australia, New Zealand, Sri Lanka, Vietnam, South Africa, Kazakhstan. A widest range of SS 317L Union ready stock available in Middle East countries including Bahrain, Iraq, Israel, Jordan, Cyprus, Egypt, Iran, Kuwait, Lebanon, Oman, Saudi Arabia, Syria, Turkey, United Arab Emirates, Palestine, Qatar and Yemen. Get best deals from distributor of 317L Stainless Steel Union.

Domestic Supply Destinations for Stainless Steel 317L Union and UNS S31703 Butt weld Union

Our SS 317L products are supplied to all major Industrial areas and cities in India such as Mumbai, Ahmedabad, Chennai, Bangalore, Hyderabad, Assam, Siliguri, Kolkata, Surat, Pune, Nagpur, Indore, Thane, Bhopal, Visakhapatnam, Delhi, Vadodra, Nashik, Thoothukudi, Rajkot, Aurangabad, Salem, Bhilai, Bhiwandi, Bikaner, Jamshedpur, Warangal, Nellore, Agartala, Ranchi, Coimbatore, Raipur, Mysore, Mangalore, Kochi (Cochin), Bhavnagar, Tirupur, Ankleshwar, Bhubaneswar and Faridabad. For any location in your country you can find here trader of Stainless Steel 317L Union in India, If your requirement is urgent we can offer a priority shipping service, but also if time is not so critical we can offer more cost-effective options to ensure you get the best value for money.

317L Union Price

India’s Prominent manufacturer & supplier of Stainless Steel 317L Union. We maintain bulk stock of 317L Union. Supplier & distributor of Alloy 317L Union globally in any size & schedule. We have a large inventory 317L Union, UNS S31703 SS 317L screwed Union, WNR 1.4438 SS Grade 317L Union, Source for ASME SA403 Stainless Steel WP 317L threaded Union, Alloy 317L buttweld Union. We have extended our stock program for you: ASME B16.9 stainless steel grade 317L Large Diameter and High Thickness ASTM A182 Seamless, Welded Stainless Steel Union, available from stock.

Distributor, Manufacturer, Suppliers, Stockholder, Traders, Wholesaler, Dealer, Distributor, Importer & Exporter, Fabricator, Stockist of ASTM A182 317L Stainless Steel 317L Union