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Stainless steel pipe fittings

Stainless steel pipe fittings

What are Stainless Steel Buttweld Fittings?

These components are standard across chemical and food processing industries to connect pipes, branch off the flow, or reduce piping size. Stainless steel buttweld fittings impart strength, corrosion resistance, and durability to the installation. They are available in many grades, like 304 and 316, but the latter gets preferred for highly corrosive and marine environments.

Buyers can order various designs and sizes, like an SS elbow to change flow direction by a specified angle, say 90 degrees. Stainless steel reducers, tees, and pipe caps operate in water supply systems and fabrication sectors. An ASTM B16.9 SS stub end also gets widely used for flanged connections.

SS elbow manufacturer in India


Specification of stainless steel buttweld fittings

Specifications Stainless steel pipe fittings size SS elbow pressure ratings
  • ASTM A182
  • ASTM A403 &
  • ASME SA182
  • ASME SA403
  • 1/2" NB to 24" NB
  • 2000 LBS
  • 3000 LBS
  • 6000 LBS
  • 9000 LBS
Custom stainless steel cap temperature range SS reducer melting point Stainless steel material tee hardness range
  • Up to 870°C
  • 1400°C
  • 217 HB
Grades of polished SS butt weld fittings Mirror stainless steel bend radius Magnetic stainless steel cross schedule chart
  • 3D
  • 4D
  • 5D
  • 6D
  • 8D
  • 10D
  • SCH 20
  • XXH
  • STD
  • SCH 160
  • SCH 10
  • SCH 80
  • XH
  • SCH 40
  • SCH 60

Manifest alloys offers a wide range of stainless steel reducer which has excellent forming and welding characteristics

What are the benefits of using stainless steel buttweld fittings in industrial applications?

Low maintenance requirements and long operational life of these products are attractive to diverse sectors, including pharmaceuticals, dairy, and beverages. Here are other key benefits of using stainless pipe fittings:

  • Can resist temperatures of up to 1093°C
  • An SS end cap can withstand corrosive attacks from several acids, alkalis, etc.
  • Displays good oxidation resistance up to 925°C in intermittent services
  • Shows good tensile strength, with some grades rated at 515 MPa
  • An ASME B16.9 stainless steel reducer is easy to clean and adapt to sanitary conditions

We are top SS pipe fittings manufacturer in India, check our huge stock and visit us for free sample, We deliver SS pipe fittings to the United States, Canada, Mexico, and Panama in 10 days.

Types of SS pipe fittings


Stainless steel elbow

Stainless steel elbow

Polished SS tee

Polished SS tee

SS reducer

SS reducer

Mirror stainless steel cap

Mirror stainless steel cap

Stainless steel alloy stub end

Stainless steel alloy stub end

Magnetic stainless steel pipe bend

Magnetic stainless steel pipe bend

Stainless steel material cross

Stainless steel material cross

We are India's biggest stainless steel tee manufacturer in Mumbai, check Dimension and size chart here

What are the latest cutting-edge testing methods for assessing the quality and reliability of stainless steel buttweld fittings?

Procuring high-quality pipe fittings, like a stainless steel 90 degree elbow produced from premium raw materials, is a concrete step toward better performance. The products should also adhere to the ASTM (or other) specification and desired properties, like tensile strength and hardness.

Modern testing techniques for a stainless steel tee and other fittings are radiography, Eddy Current tests, and magnetic particle inspection. Non-destructive tests also include ultrasonic approaches and spectrometry.

Some applications will require testing for impact resistance (Charpy V-Notch), elongation, and toughness (Brinell hardness). Clients can commission a third party to run an inspection from an accredited laboratory. It is helpful if they demand results over and above those indicated in the Mill Test Report.

Weight Formula of SS 90°Elbow


SS pipe fittings weight formula
 

Chemical composition of stainless steel tee


C Mn Si P S Cr Ni
0.08 max
2 max
0.75 Max
0.045 max
0.030 max
18 - 20
8 - 11
Contact us for additional specifications on surface finish of ASME B16.9 SS buttweld fittings

Mechanical properties of stainless steel elbow


Grade Density Melting points Tensile strength Yield strength(0.2% offset) Elongation
SS 8.0g/ cm3 1400°C (255°F) PSI-75000, MPa-515 PSi-30000, MPa-205 35%
To check chemical composition and mechanical properties of SS end cap and stub end, contact us

Equivalent grade of stainless steel reducer


Standard Werkstoff nr. UNS JIS BS GOST AFNOR EN
SS 1.4301 S30400 SUS 304 304S31 08X18H10 Z7CN18-09 X5CrNi18-10

Available grades


Available grades
321H fittings 310 elbow
SS 310s buttweld fittings Stainless steel 316ti tee
347 Reducer SS 317l pipe fittings

Applications of SS elbow


SS elbow applications
 

Value added services of DIN 1.4301SS stub end


  • → Heat treatment
  • → Electro polish
  • → Pickling polish
  • → Annealed
  • → Rolling
  • → Forging
  • → Bending
  • → Fabrication

Size chart of SS buttweld fittings


Nominal fitting Size OD 45° Elbows 90° Elbows 180° Returns
(inch)   LR SR LR LR
  (mm) (inch) Center to face (inch) Radius (inch) Center to face (inch) Center to face (inch) Center to center (inch) Back to face (inch)
3/4 26.7 1.050 7/16   1 1/8 2 1/4 1 11/16
1/2 21.3 0.840 5/8   1 1/2 2 1 7/8
1 33.4 1.315 7/8   1 1 1/2 3 2 3/16
1 1/2 48.3 1.900 1 1/8 3 1 1/2 2 1/4 4 1/2 3 1/4
1 1/4 42.2 1.660 1   1 1/4 1 7/8 3 3/4 2 3/4
2 60.3 2.375 1 3/8 4 2 3 6 4 3/16
3 88.9 3.500 2 6 3 4 1/2 9 6 1/4
2 1/2 73.0 2.875 1 3/4 5 2 1/2 3 3/4 7 1/2 5 3/16
3 1/2 101.6 4.000 2 1/4 7 3 1/2 5 1/4 10 1/2 7 1/4
5 141.3 5.563 3 1/8 10 5 7 1/2 15 10 5/16
4 114.3 4.500 2 1/2 8 4 6 12 8 1/4
6 168.3 6.625 3 3/4 12 6 9 18 12 5/16
12 323.9 12.750 7 1/2 18 12 18 36 24 3/8
8 219.1 8.625 5 12 8 12 24 16 5/16
10 273.1 10.750 6 1/4 15 10 15 30 20 3/8

Wall thickness of SS pipe fittings


Product Elbow Tee Reducer Cap Stub end
Size* 1/2"-24" 1/2"-24" 1/2"-24" 1/2"-80" 1/2"-24"
8"-104" 8"-104" 8"-104" 8"-80"
Wall Thickness SCH10S~XXS SCH10S~XXS SCH10S~XXS SCH10S~SCH160 SCH5S~80S/XS
SCH5S~80S/XS SCH5S~80S/XS SCH5S~80S/XS SCH5S~80S/XS
Seamless
Welded    

American standards of stainless steel cap


  • ASME/ANSI B16.9
  • JIS B2311/2312/2313
  • ISO 3419
  • ISO 5251
  • GOST
  • DIN/EN10253
  • ASME/ANSI B16.28
  • MSS-SP-43
  • MSS-SP-75
  • BS 1640

Stainless steel pipe fittings features


Stainless steel pipe fittings features