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Lap joint 321ss seamless stainless steel flanges stub end

Lap joint 321ss seamless stainless steel flanges stub end Featured Image
  • Lap joint 321ss seamless stainless steel flanges stub end
  • Lap joint 321ss seamless stainless steel flanges stub end
  • Lap joint 321ss seamless stainless steel flanges stub end
  • Lap joint 321ss seamless stainless steel flanges stub end
  • Lap joint 321ss seamless stainless steel flanges stub end
  • Lap joint 321ss seamless stainless steel flanges stub end

Short Description:

Name:Stub End
Size:1/2"-80"
Standard:ANSI B16.9, MSS SP 43, EN1092-1, Customized, and etc.
Type:Long and short
Material: Stainless steel,Duplex stainless steel,Nickel alloy.
Wall thickness:SCH5S, SCH10, SCH10S, STD,XS, SCH40S, SCH80S, SCH20, SCH30, SCH40, SCH60, SCH80, SCH160, XXS ,customized and etc.


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Product Detail

PRODUCT PARAMETERS

Product Name Stub end
Size 1/2"-24" seamless, 26"-60" welded
Standard ANSI B16.9, MSS SP 43, EN1092-1, customized, and etc.
Wall thickness SCH5S, SCH10, SCH10S, STD,XS, SCH40S, SCH80S, SCH20, SCH30, SCH40, SCH60, SCH80, SCH160, XXS ,customized and etc.
Type Long and short
End Bevel end/BE/buttweld
Surface pickled, sand rolling
Material Stainless steel: A403 WP304/304L, A403 WP316/316L, A403 WP321, A403 WP310S, A403 WP347H, A403 WP316Ti, A403 WP317, 904L,1.4301,1.4307,1.4401,1.4571,1.4541, 254Mo and etc.
Duplex stainless steel: UNS31803, SAF2205, UNS32205, UNS31500, UNS32750 , UNS32760, 1.4462,1.4410,1.4501 and etc.
Nickel alloy: inconel600, inconel625, inconel690, incoloy800, incoloy 825, incoloy 800H, C22, C-276,Monel400, Alloy20 etc.
Application Petrochemical industry;aviation and aerospace industry;pharmaceutical industry,gas exhaust; power plant;ship building; water treatment, etc.
Advantages ready stock,faster delivery time;available in all sizes,customized;high quality

       SHORT/LONG PATTERN STUB ENDS (ASA/MSS)

Stub ends are available in two different patterns:

  • the short pattern, called MSS-A stub ends
  • the long pattern, called ASA-A stub ends (or ANSI length stub end)
Short and long pattern stub ends

Short pattern (MSS) and long pattern stub ends (ASA)

STUB END TYPES

Stub ends are available in three different types, named “Type A”, “Type B” and “Type C”:

  • The first type (A) is manufactured and machined to match standard lap joint backing flange (the two products have to be used in combination). The mating surfaces have an identical profile to permit a smooth loading of the flare face
  • Stub ends type B are have to be used with standard slip-on flanges
  • Type C stub ends can be used either with lap joint or slip-on flanges and are manufactured from pipes

Stub end types

BENEFITS OF LAP JOINT STUB ENDS

1.Reduces the overall cost of the flanged jointGenerally, the lap joint flange is of a lower grade than the material of the stub end and the pipework, thus saving the total weight of high-grade material used for the flanged joint.Example:For an SS316 pipe, instead of using a full 316 welding neck flange, a combination of an SS316 stub end and a carbon steel lap joint flange would do the same exact job, but the total weight of SS316 material would be lower, and the cost as well.Essentially, stub ends allow to minimize the weight of high-grade material in stainless, duplex, and nickel alloy piping, saving costs. Of course, the bigger the diameter and the class of the flanges, the higher the saving!2.Facilitates the installation of the flangeThe lap joint flange can be rotated on the pipe and simplify the alignment of the bolt holes of the mating flanges

It shall be noted that stud ends are becoming popular also in high-pressure applications (whereas they were used for low-pressure applications only in the past).

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DETALED PHOTOS

1. Bevel end as per ANSI B16.25.

2.  Without lamination and cracks

3. Without any weld repairs

4. Surface treatment can be pickled or CNC fine machined. For sure, the price is different. For your reference, pickled surface is cheaper.

MARKING

Various marking work can be on your request. We accept mark your LOGO.

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INSPECTION

1. Dimension measurements, all within standard tolerance.
2. Thickness tolerance:+/-12.5% , or on your request
3. PMI
4. PT, UT,X-ray test
5. Accept Third party inspection
6. Supply MTC, EN10204 3.1/3.2 certificate, NACE

PACKAGING & SHIPPING

1. Packed by plywood case or plywood pallet as per
2. we will put packing list on each package
3. we will put shipping markings on each package. Markings words are on your request.
4. All  wood package materials are fumigation free

 

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INSPECTION

1. Dimension measurements, all within standard tolerance.
2. Thickness tolerance:+/-12.5% , or on your request
3. PMI
4. PT, UT,X-ray test
5. Accept Third party inspection
6. Supply MTC, EN10204 3.1/3.2 certificate, NACE

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