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B16.9 Buttweld Fittings ASTM A403 WP304 Stainless Steel Lap Joint Stud Ends

B16.9 Buttweld Fittings ASTM A403 WP304 Stainless Steel Lap Joint Stud Ends

  • B16.9 Buttweld Fittings ASTM A403 WP304 Stainless Steel Lap Joint Stud Ends
  • B16.9 Buttweld Fittings ASTM A403 WP304 Stainless Steel Lap Joint Stud Ends
  • B16.9 Buttweld Fittings ASTM A403 WP304 Stainless Steel Lap Joint Stud Ends
B16.9 Buttweld Fittings ASTM A403 WP304 Stainless Steel Lap Joint Stud Ends
Product Details:
Place of Origin: CHINA
Brand Name: YUHONG
Certification: ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Model Number: ASTM A403 WP317 Stainless Steel Stub End
Payment & Shipping Terms:
Minimum Order Quantity: 1PC
Packaging Details: Ply-wooden Case /Pallet
Delivery Time: 7 DAYS
Payment Terms: L/C,T/T
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Detailed Product Description
Product Name: Stub End Standard: ASTM A403, ASME SA403
Dimension: ASME/ANSI B16.9, MSS SP43 Material: Stainless Steel 304, 304L, 316L, 317, 317L, 310S, 321et.
Size: 1/2" To 24" Schedule: Sch 10s To Sch XXS
Type: Type A, Type B, Type C, Collar Type Length: Long Pattern, Short Pattern
Technique: Cold Drawn
Highlight:

Stainless Steel Lap Joint Stud Ends

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ASTM A403 WP304 Buttweld Pipe Fittings

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Buttweld Stainless Lap Joint Stud Ends

ASME B16.9 Buttweld Pipe Fittings , ASTM A403 WP304 Stainless Steel Lap Joint Stud Ends
 
 
A stub end is a short piece of pipe with a flange on one end and a lap joint on the other. It is designed to be used with a matching lap joint flange and allows for easy disassembly for maintenance or inspection. Ensure that the steel stub end material matches the piping system in terms of corrosion resistance and mechanical properties. Typically made of carbon steel, alloy steel, stainless steel, or other materials to match the piping system's requirements. 
 
 
Connection Process of Stub End and Flange:

  • The stub end is welded to a pipe. This creates a reliable mechanical connection.
  • A flange is then bolted to the stub end. A gasket is placed between the flange and stub end to ensure a tight seal.
  • Bolting the flange down applies pressure, compressing the gasket and forming a leak-proof joint.

 
 

ASTM A403 WP304/304L Pipe Fittings Equivalent Grade
Grade UNS No Old British Euronorm Swedish SS Japanese JIS
BS En No Name
304 S30400 304S31 58E 1.4301 X5CrNi18-10 2332 SUS 304
304L S30403 304S11 - 1.4306 X2CrNi19-11 2352 SUS 304L

 

 
ASTM A403 WP304/304L Pipe Fittings Chemical Composition

Grade C Mn Si P S Cr Mo Ni N
304 min.max. -0.08 -2.0 -0.75 -0.045 -0.030 18.0-20.0 - 8.0-10.5 -0.10
304L min. max. - 0.030 - 2.0 - 0.75 - 0.045 - 0.030 18.0 20.0 - 8.0 12.0 - 0.10

 

 
ASTM A403 WP304/304L Pipe Fittings Mechanical Properties

Grade Tensile Strength (MPa) min Yield Strength 0.2% Proof (MPa) min Elongation (% in 50mm) min Hardness
Rockwell B (HR B) max Brinell (HB) max
304 515 205 40 92 201
304L 485 170 40 92 201

 

 
Stainless Steel Buttweld Lap Joint Stub End:
ASTM A403 WP316/316L, 304/304L, 310/S, 317/L, 321, etc. DIN1.4301, DIN1.4306, DIN 1.4401, DIN 1.4404 ...
Duplex & Super Duplex Steel Buttweld Lap Joint Stub End:
ASTM A 815 UNS S31803, S32205, S32750
Carbon Steel Buttweld Lap Joint Stub End:
ASTM A234 WPB, WPHY 42, WPHY 46, WPHY 52, WPH 60, WPHY 65 & WPHY 70.
Low-Temperature Carbon Steel Buttweld Lap Joint Stub End:
ASTM A420 WPL3, A420 WPL6
Alloy Steel Buttweld Lap Joint Stub End:
ASTM A234 WP1, WP5, WP9, WP11, WP12, WP22, WP91, WP92
Nickel Alloy Buttweld Lap Joint Stub End:
ASTM B336 Nickel 200, Nickel 201, Monel 400, Inconel 800, Inconel 825, Inconel 600, Inconel 625, Inconel 601, Hastelloy C 276, Alloy 20

 

 

Here are some key functions and characteristics of stub ends:
1. Connection Point: Stub ends act as a connection point for additional pipes or fittings, allowing for branching off from the main pipeline.
2. Flanged Connection: They typically come in two types: long stub ends and short stub ends. They are often used with flanges for secure connections to other piping segments.
3. Support for Valves: Stub ends can be used to support valves, allowing for easy access for maintenance and repairs.
4. Flexibility in Design: They provide flexibility in piping design by facilitating easy changes in the direction or branching of flow.
5. Pressure Handling: Stub ends are designed to handle the pressure and flow characteristics of the system, making them suitable for various applications in different industries.

 
 
Applications
They are particularly beneficial in environments where the system may be subject to pressure fluctuations or frequent operational changes.

  • oil and gas
  • chemical processing
  • water treatment
  • shipbuilding

 
 

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