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316/316L Stainless Steel(UNS S31600/UNS S31603)

DataTime:[2014-11-5]

Grade 316 / 316L | UNS S31600 / UNS S31603 | 1.4401 / 1.4404

These steels are the second most regularly specified stainless steels after Type 304 stainless steel and are part of the SAE defined 300 Series which encompasses a range of austenitic chromium-nickel alloys. Austenitic stainless steels like Type 316L stainless steel is widely available, have good general corrosion resistance, good cryogenic toughness, and excellent formability and weldability.

Type 316 stainless steel has 2-3% Molybdenum included in its chemical composition which prevents specific forms of corrosion and generally enhances its corrosion resistance. Type 316 stainless steel is often referred to as “marine grade” stainless due to its increased resistance to chloride corrosion compared to Type 304 stainless steel making it a very suitable material for use in salt water environments.

Type 316L stainless steel is a variant of Type 316 stainless steel and differs by having a lower Carbon content as well as slightly lower yield and tensile strengths. Type 316L stainless steel offers improved weldability and also reduces the possibility of lower corrosion resistance around welded areas.

As with most steel plate products a number of different designations are used for these  stainless steels. The most common are:

  • Type 316              1.4401 (EN Steel Number)            S31600 (UNS) 
  • Type 316L            1.4404 (EN Steel Number)            S31603 (UNS)

316/316L Stainless Steel Properties:

Typical chemical and mechanical properties of Type 316 stainless steel and Type 316L stainless steel:

   Chemical Analysis (%)  PREN Mechanical Properties
  Cr Ni  Mo 
Proof Stress  Tensile  Elongation 
316  .08  17  11.5  24  255  550-700  40 
316L  .03  17  11.5  24  220 520-670 40 

Typical industrial sectors:

  • Brewing
  • Chemical Industry
  • Dairy
  • Food processing
  • Marine equipment
  • Petrochemicals
  • Pharmaceuticals

Typical product applications:

  • Condensers
  • Heat Exchangers
  • Stainless Steel Pipe Fittings
  • Stainless Steel Pipes
  • Pressure Vessels
  • Stainless Steel Valves
  • Stainless Steel Flanges

All 316/316L at Yaang Pipe is certified to 316/316L which we stock at our warehouse in the CN with the capabilities to supply directly to countries across the world in all Stainless Steel Flanges, Stainless Steel Pipe Fittings, and Stainless Steel Pipes.


316/316L Stainless Steel Pipes, Stainless Steel Tubes/Tubing and Butt Weld Stainless Steel Fittings


316/316L stainless steel pipes and stainless steel tubes are available in both seamless and welded form in OD and NB sizes. In addition to standard sizes, which are available in stock, our specialty is to manufacture and supply custom size 316/316L cold drawn seamless stainless steel tubes from our factory.

316, 316L stainless steel pipes and stainless steel tubes can be offered in random lengths of up to 6meters long or cut to a specific length as ordered. We also offer a complete range of 316/316L stainless steel pipe fittings including 316L stainless steel elbow, 316L stainless steel bends, 316L stainless steel tees, stainless steel reducers and stainless steel caps.

Go www.yaang.com to see details of our most popular stock sizes in Type 316 and Type 316L stainless steel products.

Source: Yaang Pipe Industry

Tel No:+86-18267732328 / Email:sales@yaang.com
Address:Longwan District, Wenzhou, Zhejiang Province, China.

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Yaang Pipe Industry Co., Ltd. is an international supplier of piping solutions for flange, butt welding fittings, socket welding fittings and threaded fittings. Our products are widely used in different industrial fields, including oil and gas, chemical industry, petrochemical industry, power plant, pulp and paper industry, environmental and water conservancy engineering, engineering projects, etc.