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ANSI/ASME B16.9 Stainless Steel 347/347H Buttweld Pipe Fittings

347/347H Pipe Fittings, SS 347/347H Pipe Bends, Stainless Steel 347/347H Buttweld Pipe Fittings, ASTM A403 SS 347/347H pipe fittings, ASTM A182 SS347/347H Pipe Fittings, ASTM A240 Stainless Steel 347/347H Flanges manufacturer, Stainless Steel 347/347H Pipe Bends, SS 347/347H Elbow, SS 347/347H Tee, SS 347/347H Reducer, Tee

Stainless Steel Tradename UNS no. Werkstoff No. Density (g/cm3)
347 Stainless 347 S34700 1.4550 7.96
347H Stainless 347H S34709 1.4961 7.96

JF Engineering Products LLP is a leading maker and dealer of stainless steel 347/347H buttweld pipe fittings and 347/347H flanges, tee, reducer and bends. We have a complete stock of these stainless pipe fittings such as SS 347 elbow, SS 347 reducer, SS 347 Tee, SS 347 Cross, SS 347 Flanges and SS 347 Pipe Bends available according to the standard ASTM A403/ A182/ A240 and ANSI B16.9/16.28/ B16.25/ MSS SP-43.

Type 347 is similar to Type 321 Stainless steel but the only differene is slightly improved corrosion resistance in strongly oxidizing environments. It contains columbium and is widely used in high temperature environments. 347 stainless steel has amazing features such as good welding and forming capabilities. It is also known as UNS S32109 that provide higher temperature strength. Stainless Steel 347 is essentially non-magnetic in the annealed condition and can only be hardened by cold working.

The key features of Stainless Steel 347/347H Pipe Fittings
  • Good Creep Strength
  • Improved Intergranular Corrosion Resistance
  • Possess high temperature properties
Applications of Stainless Steel 347/347H Pipe Fittings
  • Oil Refinery Equipment
  • Heat Exchangers
  • Boilers and pressure vessels
  • Chemical Industries

Key Properties of Stainless Steel 347 Pipe Fittings, SS 347 Flanges

  • Stainless steel 347H offers high temperature creep properties
  • Improved intergranular corrosion resistance
  • Superior general corrosion resistance over Type 321
  • Superior high temperature properties than 304 or 304L

Common Applications – SS 347 Pipe Fittings, 347 Flanges

  • Furnace parts
  • Pressure vessels and tanks
  • Industrial boilers
  • Pulp and paper processing equipment
  • Heat exchanger tubes
  • High temperature chemical processing equipment
  • Oil and petrochemical refineries

SS 347 Pipe Fittings Production Range

Specification ASTM A182 / A403 & ASME SA182 / SA403
Type Seamless / Welded / Fabricated
Variants 347, 347H
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 347/347H Pipe Fittings

Buttweld Stainless Steel 347/347H Pipe Fittings

Products Size
SS 347 Elbows – Long Radius SS 347 Stub Ends

Sizes 1/2″ – 48″

SS 347 Elbows – Short Radius SS 347 Crosses
SS 347 Reducing Elbows SS 347 Reducing Crosses
SS 347 45° Elbows SS 347 180° LR Return Bends
SS 347 Tees SS 347 180° SR Return Bends
SS 347 Fabricated Tees SS 347 Pipe Bends / Piggable Bends
SS 347 Reducers SS 347 Couplings
SS 347 Concentric Reducers SS 347 Pipe Nipples
SS 347 Eccentric Reducers SS 347 Forged/Plate Cut Rings
SS 347 3D Elbow SS 347 End Caps
SS 347 5D Elbow SS 347 Forged / Plate Circles

High Pressure Forged 347/347H Pipe Fittings

Threaded and Socket Weld Pipe Fittings

Products Size
SS 347 90° Elbows SS 347 Couplings

Sizes 1/8″ – 4″

Pressure Ratings –
2000 LBS, 3000 LBS, 6000 LBS, 9000 LBS

SS 347 45° Elbows SS 347 Reducers
SS 347 Street Elbows SS 347 Inserts
SS 347 Tees SS 347 Caps
SS 347 Crosses SS 347 Unions

Stainless Steel 347/347H Flanges

Forged and Plate Flanges

Specification ASTM A182 / A240 & ASME SA182 / SA240
Grade 347, 347H
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 347 Slip-On Flanges SS 347 Threaded Flanges

1/8″ – 36″

Raised Face or Flat Face

SS 347 Weld Neck Flanges SS 347 Socket Weld Flanges
SS 347 Blind Flanges SS 347 Reducing Flanges
SS 347 Lap Joint Flanges SS 347 Plate Flanges

Marking & Packing

Products are packaged to ensure that there is no damage during transit. In case of exports, standard export packaging is done in wooden cases. All fittings and flanges are marked with Grade, Lot No, Size, Degree and our trade mark. On special requests we can also, make custom marking on our products.

Quality Assurance

At JF Engineering Products LLP, all fittings and flanges are subject to strict inspection at each stage of the production process, from starting material purchasing to product dispatch. They are visually examined for conformity to ASTM, ASME, MSS, DIN, EN, and JIS codes and standards. Upon request, official certified Inspection Agencies can be called in to witness the material reports, dimensions and quality conformity of products.

Test Certificates: Manufacturer Test Certificate as per EN 10204 / 3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report