316L Stainless Steel Pipe
316L stainless steel pipe is a hollow round steel bar used in petroleum, chemical, medical, food, light industry, machinery and instrument service, as well as for mechanical structural components. Because weight drops…
What This Product Is For
316L stainless steel pipe is a hollow round steel bar used in petroleum, chemical, medical, food, light industry, machinery and instrument service, as well as for mechanical structural components. Because weight drops for the same bending and torsional strength, it is widely used in the manufacture of mechanical parts and engineering structures. It is made seamless and welded in round, square and rectangular shapes.
Key Benefits
- Hollow section gives the same bending and torsional strength at lower weight than solid bar
- Round, square and rectangular shapes from one supplier and one grade
- Round sizes to 1219 mm outside diameter cover both instrument and structural duty
- Wall thickness from 0.6 mm up to 62 mm spans thin tubing to heavy structural section
- Pickled or polished surface as the application requires
Who It Is For
- Process piping fabricators working in 316L
- Machine builders using stainless structural sections
- Food and medical equipment manufacturers
- Distributors carrying round, square and rectangular stainless tube
Problems It Solves
- Excess weight when structures are built from solid bar instead of hollow section
- Sourcing square and rectangular stainless section alongside round pipe
- Surface condition mismatch between structural and hygienic runs
- Wall thickness gaps between thin tube and heavy pipe
Application Scenarios
- Petroleum and chemical process piping
- Medical and food processing equipment
- Machinery frames and engineering structures
- Instrument tubing and light industry equipment
Specifications
Every value below is taken from the published product data. Where a figure is not published it is left out rather than estimated.
| Grade | 316L |
|---|---|
| Process | Seamless and welded |
| Shapes | Round, square, rectangular |
| Round Size | 10 to 1219 mm |
| Square Size | 20 x 20 mm to 500 x 500 mm |
| Rectangular Size | 20 x 30 mm to 400 x 600 mm |
| Wall Thickness | 0.6 to 62 mm |
| Length | 3000 mm, 5800 mm |
| Standard | ASTM A213, A312, A249, A269, A409, A358, A511, A554 |
| Surface Treatment | Pickled, polished |
Technical Features
- Seamless and welded processes
- Round, square and rectangular shapes
- Round 10 to 1219 mm, square 20 x 20 mm to 500 x 500 mm, rectangular 20 x 30 mm to 400 x 600 mm
- Wall thickness 0.6 to 62 mm
- Standard lengths 3000 mm and 5800 mm
Materials
- 316L molybdenum bearing austenitic stainless steel
Manufacturing Process
- Seamless piercing and drawing
- Tube welding
- Cold sizing
- Pickling and polishing
Quality Control
- Outside dimension and wall thickness checked for each shape
- Weld seam inspected on welded product
- Surface condition verified as pickled or polished
- Standard confirmed against the ASTM specification ordered
Customisation Options
- Round, square or rectangular section in the same grade
- Seamless or welded process
- Pickled or polished surface finish
Use Guide
- Pick the shape to suit the joint, using square and rectangular section for framed structures
- Choose seamless for pressure duty and welded for structural and general service
- Specify pickled for process lines and polished for visible or hygienic work
- Check the standard against the application, since A312 pressure pipe and A554 structural tube differ
How It Compares With the Alternatives
| 304 stainless pipe | 316L adds molybdenum, which is what gives it the pitting and crevice resistance needed in chloride bearing process service |
|---|---|
| Solid stainless bar | For the same bending and torsional strength the pipe is lighter, which is why it is used for mechanical parts and engineering structures |
| 317 stainless pipe | 317 carries more nickel and molybdenum still and is chosen where phosphoric and acetic acid pitting is the concern |
Related Products
ASTM A213 TP347 Cold Finished Seamless Pipe 168.3 x 4.2 x 8000 mm
This is a cold finished TP347 seamless pipe supplied to ASME B36.19 dimensions and ASTM A213 material requirements, in a fixed size…
View specifications →
904L Stainless Steel Pipe
904L is one of the strongest stainless grades for corrosion resistance, written as 1.4539 or X1NiCrMoCu25-20-5 under EN and as UNS…
View specifications →
310S Stainless Steel Pipe
310S, also known as 1.4845 or X8CrNi25-21 under EN and UNS S31008, is the grade used in very high temperature environments.…
View specifications →
321 Stainless Steel Pipe
321 is the titanium stabilised austenitic grade preferred for heat resistant applications, written as 1.4541 or X6CrNiTi18-10 under…
View specifications →Where This Material Is Used
Food and Pharmaceutical
Hygienic equipment is judged on what it does not do: it does not shed metal into the product, it...
Water and Fire Protection
Water systems are long life assets where the pipe is buried, embedded or hidden in a riser, so...
Made to Size Mill Supply
Buying standard mill lengths and cutting them on site wastes material twice, in the offcut and in...
316L Stainless Steel Pipe Questions
What shapes can you supply
What is the largest round size
What wall thickness range is available
What are the standard lengths
Which standards does the pipe meet
Where is 316L pipe typically used
Quote 316L Stainless Steel Pipe
Send the size, wall or thickness, quantity and destination port. Certificates, packing and lead time are confirmed on the quotation.