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AISI 316/316H Stainless Steel ButtWelded Reducer Pipe Fitting

AISI 316/316H Reducer Pipe Fitting is a pipe fitting that connects two pipes with different diameters. Austenitic stainless steel alloy 316 or 316H is used as a material. It has excellent resistance to corrosion, high strength, and good weldability. It has a number of applications which include chemicals, petrochemical, oil and gas, power generation and marine. AISI 316/316H Stainless Steel ButtWelded Reducer Pipe Fitting has two types: concentric reducer and eccentric reducer. A concentric reducer has a common centerline and causes the pipe diameter to decrease from large to small while keeping a fixed centerline. An off center reducer has an offset centre line and reduces pipe size from larger to smaller by aligning one end of the fitting with one end of the pipe. As for the selection of concentric or eccentric reducer, it is up to the flow nature, pressure drop and alignment needs of piping system.

AISI 316/316H Stainless Steel ButtWelded Reducer Pipe Fittin

Types of AISI 316/316H buttwelded reducer pipe fitting, Stainless Steel ButtWelded Reducer Pipe Fitting

However, buttwelded reducer pipe fittings are used to join pipes of varying calibers and reduce the flow rate of fluids or gases. They are butt-welded to the ends of the pipes, producing a continuous and leak free joint. There are two types of buttwelded reducer pipe fittings: concentric and eccentric. A concentric reducer is an element with the common centerline, and when reducing from larger to smaller it has a constant centerline. An eccentric reducer features an offset axis that decreases the pipe size from greatest to smallest by associating one end of a fitting with one end of the pipe. The decision on whether to use concentric or eccentric reducer is based on the type of flow features, pressure loss and pipelines alignment. It is a high carbon variant of 316 stainless steel and has excellent resistance to oxidation and corrosion in the high temperature range. AISI 316/316H buttwelded reducer pipe fittings is used for high strength and wear resistant applications such as furnace parts, heaters etc., they are available according to the customer’s requirements in various sizes shapes and schedules.

Concentric Reducer

Concentric Reducer

Rexon Pipe fittings specialty is one of the types of stainless steel fitting that is a buttwelded Concentric Reducer pipe fitting. It has two apertures of varying sizes that link pipes of different diameters and maintain the centreline. It is commonly utilized to change the pipe diameter and flow rate among different piping systems.

Eccentric Reducer

Eccentric Reducer

Buttwelded Eccentric Reducer pipe fitting is a type of stainless steel fitting with slant centerline and two openings of different sizes that is manufactured by Rexon Pipe fittings.

Short-End Reducer

Short-End Reducer

Short-End Reducer pipe fitting is a type of stainless steel fitting with two openings of different sizes and a shorter end than standard reducers and is what Rexon pipe fittings specialize at.

Long-End Reducer

Long-End Reducer

Buttwelded Long-End Reducer pipe fitting is one of the stainless steel fitting types, which has two openings with different sizes and a longer end than regular reducers; Rexon Pipe fittings specialize in.

Stainless Steel 316 Butt-Welded Reducer Pipe Fittings Specifications

  • Material: Metallic
  • Color: Varies
  • Joining: Welding
  • Types: Elbows, Tees, Reducers, Caps, Stub Ends
  • Sizes: Varied
  • Standards: ASME B16.9, MSS-SP 75, DIN
  • Pressure Ratings: Application-specific
  • Corrosion Resistance: Yes
  • Installation: Welding
  • Maintenance: Regular

AISI 316/316H Stainless Steel ButtWelded Reducer Pipe Fitting Specifications

Stainless Steel buttwelded reducer pipe fitting specifications are AISI 316/316H, which the dimensional and tolerance and material grades of wrought austenitic stainless steel fittings used for pressure vessel applications.

Specification Description
Material Grades AISI 316 (UNS S31600), AISI 316H (UNS S31609)
Size Range Specified in nominal pipe sizes (NPS) or millimeters
Wall Thickness Conforms to the appropriate standard (e.g., ASME B16.9) - Specified in schedule numbers or millimeters
Manufacturing Standards Conforms to recognized standards, such as ASME B16.9 (for stainless steel fittings)
Pressure Rating Varies with material, wall thickness, and size - Typically designated by class numbers (e.g., Class 150, Class 300)
End Connections Beveled ends for welding - Bevel angle typically 37.5 degrees
Surface Finish Exterior and interior surfaces free from defects - Welds properly formed and inspected
Heat Treatment Post-weld heat treatment (PWHT) may be necessary for certain applications
Testing and Inspection Visual inspection, dimensional checks, non-destructive testing (e.g., radiographic, ultrasonic) - Material testing (e.g., PMI)
Marking Clearly marked with size, material grade, manufacturer's name/logo, and relevant standards
Certification Manufacturer provides material certificates, test reports, and other documentation to confirm compliance with specifications and standards

AISI 304/304L buttwelded reducer pipe fitting Stainless Steel Physical Property

The physical properties that can be attributed to 316/316L SS buttwelded reducer pipe fitting, stainless steel fittings that have excellent thermal conductivity and low thermal expansion, include density, specific heat and modulus of elasticity.

Grade Tensile Str
(MPa) min
Yield Str
0.2% Proof
(MPa) min
(% in 50mm) min
Rockwell B (HR B) max Brinell (HB) max
316 515 205 40 95 217
316L 485 170 40 95 217
316H 515 205 40 95 217

AISI 316/316L Buttwelded Equal Tee Chemial Property

317/317L SS buttwelded reducer pipe fitting is a stainless steel fitting that contains components such as chromium, nickel, carbon and other elements that have good corrosion resistance and tensile strength.

Element 317 Stainless Steel (%) 317L Stainless Steel (%)
Carbon (C) 0.08 max 0.03 max
Chromium (Cr) 18.0 - 20.0 18.0 - 20.0
Nickel (Ni) 11.0 - 15.0 11.0 - 15.0
Manganese (Mn) 2.0 max 2.0 max
Silicon (Si) 0.75 max 0.75 max
Phosphorus (P) 0.045 max 0.045 max
Sulfur (S) 0.03 max 0.03 max
Molybdenum (Mo) 3.0 - 4.0 3.0 - 4.0
Iron (Fe) Balance Balance

Price List Of SS 316 Reducer Pipe Fittings In India

Description Price In INR (Per Piece)
2" X SCH 40 325.00
3" X SCH 40 400.00
4" X SCH 40 600.00
6" X SCH 40 1350.00
8" X SCH 40 2400.00
10" X SCH 40 4500.00

Frequently Asked Questions

What is the difference between long radius and short radius elbow fittings?
It is the long radius elbow fittings that have a longer curvature, thus giving smoother fl ow and minimized pressure drop. Short radius elbow fittings provide a smaller curvature radius and hence compactness but can lead to higher pressure drops.
What is the maximum pressure rating for stainless steel butt-welded elbow pipe fittings?
However, the maximum pressure rating relies on material grade, fitting size and design. It is always necessary to follow the manufacturer’s specifications and standards of industry for these particular pressure ratings.
Can stainless steel butt-welded elbow pipe fittings be used in high-temperature applications?
The answer is yes because stainless steel butt-welded elbow pipe fittings can resist high temperatures. The temperature specifications, however, may be dependent on the material grade and its use. It is therefore important to take into account the temperature restrictions from the manufacturer and refer back to industry standards.
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