3 Stainless Steel Pipe Fittings TP316 / 316L Butt Weld Fittings Tee ASME B16.9
Description:
- Buttweld fitting is defined as a part used in a piping system, for changing direction, branching or for change of pipe diameter, and which is mechanically joined to the system.
- Buttweld fittings is a butt-welded connected pipe fittings, it is easy for installation and maintenance.There are many different types of fittings and they are the same in all sizes and schedules as the pipe.
- Buttweld fittings (BW fittings) whose dimensions, dimensional tolerances et cetera are defined in the ASME B16.9 standards. Light-weight corrosion resistant fittings are made to MSS SP43.
- Stainless steel tee is the most important buttweld pipe fittings, they are fabricated by seamless stainless steel pipes or steel plate and get beveled end for butt-welding.
- A butt weld pipe fitting is designed to be welded on site at its end(s) to connect pipe(s) together and allow change in direction or pipe diameter, or branching or ending.
- This fitting then becomes part of a system for transporting fluids (oil, gas, steam, chemicals, …) in a safe and efficient manner, over short or long distances.
Composition:
Elements |
316L (wt%) / CR316L /S31603 |
316 (wt%) / CR316 / S31600 |
(C) Carbon, max |
0.03 |
0.08 |
(Mn) Manganese, max |
2 |
2 |
(P) Phosphorus, max |
0.045 |
0.045 |
(S) Sulfur, max |
0.03 |
0.03 |
(Si) Silicon, max |
1 |
1 |
(Ni) Nickel |
10.0 - 14.0 |
10.0 - 14.0 |
(Cr) Chromium |
16.0 - 18.0 |
16.0 - 18.0 |
(Mo) Molybdenum |
2.0 - 3.0 |
2.0 - 3.0 |
(Fe) Iron |
Bal. |
Bal. |
(Cu) Copper |
N/A |
N/A |
(N) Nitrogen |
N/A |
N/A |
Materials:
Stainless Steel |
A403 304/L,304H ·310S ·316/L,316Ti·317/L·321/H ·347/H ·S31803·S32750 ·904L |
Low Temperature Steel |
A420 WPL3, WPL6 |
Alloy Steel |
A234 WP5, WP9, WP11, WP12, WP22, WP91 |
High Yield |
WPHY42, 52, 60, 65, 70 |
Duplex & Super Duplex |
A815 UNS 31803, UNS 31254, UNS S32750 |
Nickel Alloys |
alloy200, 400, K500, 600, 625, 800, 825 ,alloy 20, hastalloy B2, C22, C276 |
Other Grades |
Cu70Ni30(C71500),Cu90Ni10(C70600),Titanium |

Quality & Inspection:
- PMI test to verify material grade
- Dimension controlling during fabricating and finished
- Visual and surface 100% examination before shipment
- End protected for shipment
- Packed in carton box firstly, then in wooden case
Application:
- Ship building,
- Petrochemical,
- Steel plant,
- Refineries,
- Chemical,
- Fertilizers,
- Defence,
- Power plant,
- Shipyard,
- Oil & gas,
- Offshore,
- Railway,
- LNG,
- etc.
Heavy wall thickness elbow is our strength. All of these materials are available for third party inspection, such as SGS,BV,Lloyd’s,TUV etc. For more information, please contact us.