SS 316/316L Pipe Fittings


Reliable Pipes and Tubes Ltd. is a leading manufacturer and supplier of stainless steel 316 (1.4401), 316L (1.4404) and 316Ti (1.4571) grade buttweld pipe fittings and flanges. RELIABLE PIPES & TUBES LTD. offers a complete range of stainless steel 316/316L pipe fittings such as SS 316 reducer, SS 316 elbow, SS 316 tee, SS 316 cross, SS 316 end caps, SS 316 stub ends and SS 316 pipe bends. Stainless steel 316 and 316L 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 316 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 316 pipe fittings, SS 316 flanges and SS 316 pipe bends. Our specialty is to manufacture and supply large size fabricated 100% radiography tested SS 316 elbows, SS 316 reducers, SS 316 tees and SS 316 large diaReliable Pipes and Tubes fabricated pipes.

Stainless ASTM A403, ASTM A182, ASTM A240 – 316/316L PIPE FITTINGS, SS 316/316L FLANGES SUPPLIER

stainless steel 316/316L pipe fittings
SS 316/316L Pipe Fittings
stainless steel 316/316L pipe flanges
SS 316/316L Pipe Flanges
stainless steel 310/310S forged fittings
SS 316/316L Forged Fittings


Stainless steel 316 and 316L are the second most commonly used stainless steel grades after 304/304L, being a higher version of 304, with addition of molybdenum and slightly higher content of nickel. The properties of stainless steel 316 are similar to that of Type 304, except that alloy 316 is stronger at elevated temperatures. 316L is the low carbon version, while Type 316H is a higher carbon version of 316 stainless steels. Meanwhile, 316Ti is a titanium stabilized version of 316. Resistance to sensitization is achieved in type 316Ti with titanium additions to stabilize the structure against chromium carbide precipitation, which is the source of sensitization.

RELIABLE PIPES & TUBES LTD. also stocks and supplies a complete range of SS 316 | 316L pipes to complement our existing production range of SS 316 buttweld fittings and SS 316 flanges. Stainless steel 316/316L pipes can be supplied in cut to length sizes and also machined or fabricated to meet your custom piping requirements.

Stainless Steel Tradename UNS no. Werkstoff No. Density (g/cm3)
316 316 Stainless S31600 1.4401 8.00
316L 316L Stainless S31603 1.4404 8.00
316H 316H Stainless S31609 1.4919 8.00
316Ti 316Ti Stainless S31635 1.4571 8.00


SS 316/316L Pipe Fittings Production Range

Specification ASTM A182 / A403 & ASME SA182 / SA403
Type Seamless / Welded / Fabricated
Variants 316, 316L
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 316/316L Pipe Fittings

Seamless/Welded 100% Radiography Tested

Products Size
SS 316 Elbows – Long Radius SS 316/316L Stub Ends Sizes 1/2″ – 48″
SS 316/316L Elbows – Short Radius SS 316L Crosses
SS 316L Reducing Elbows SS 316 Reducing Crosses
SS 316 45° Elbows SS 316/316L 180° LR Return Bends
SS 316 Tees SS 316L 180° SR Return Bends
SS 316L Equal Tees SS 316/316L Pipe Bends / Piggable Bends
SS 316/316L Reducers SS 316 Couplings
SS 316L Concentric Reducers SS 316/316L Steel Pipe Nipples
SS 316 Eccentric Reducers SS 316L Forged/Plate Cut Rings
SS 316 3D Elbow SS 316/316L End Caps
SS 316/316L 5D Elbow SS 316 Forged / Plate Circles
SS 316/316L Pipe Fittings SS 316 Pipe Fittings


High Pressure Forged SS 316/316L Pipe Fittings

Threaded and Socket Weld Pipe Fittings

Products Size
SS 316/316L 90° Elbows SS 316/316L Couplings Sizes 1/8″ – 4″
Pressure Ratings –
2000 LBS, 3000 LBS, 6000 LBS, 9000 LBS
SS 316 45° Elbows SS 316L Reducers
SS 316L Street Elbows SS 316/316L Inserts
SS 316/316L Tees SS 316 Caps
SS 316L Crosses SS 316/316L Unions


SS 316/316L Flanges

SS 316/316L Forged and Plate Flanges

Specification ASTM A182 / A240 & ASME SA182 / SA240
Grade 316 (1% Ni), 316L (4% Ni)
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 316/316L Slip-On Flanges SS 316L Threaded Flanges 1/8″ – 36″
Raised Face or Flat Face
SS 316 Weld Neck Flanges SS 316/316L Socket Weld Flanges
SS 316/316L Blind Flanges SS 316 Reducing Flanges
SS 316 Lap Joint Flanges SS 316L Plate Flanges