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MSS SP-43 ASTM A815 UNS32750 GR2507 SMLS Stub End

Yaang Pipe Industry

City: Wenzhou


Contact Person:Miss. yane View Contact Details

MSS SP-43 ASTM A815 UNS32750 GR2507 SMLS Stub End

Place of Origin : Zhejiang, China (Mainland)

Brand Name : yaang

Certification : ISO 9001

MOQ : 1 Piece

Price : USD 1 - 1,900/Piece

Packaging Details : Seaworthy plywood cases or pallets

Delivery Time : 2 - 10 days

Payment Terms : L/C,T/T,Western Union,MoneyGram

Supply Ability : 1000 Pieces Per Day

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Quick Details

  • Material: Super Duplex 2507 (UNS32750)
  • Technics: Cold forming
  • Type: 2507 SMLS Stub End
  • Place of Origin: Zhejiang, China (Mainland)
  • Brand Name: Yaang
  • Connection: Welding
  • Head Code: Round
  • Size: 4 Inch (DN100)

Packaging & Delivery

Packaging Details: fumigation free plywood cases or as per customers' requests
Delivery Detail: Delivery after receiving deposit


MSS SP-43 ASTM A815 UNS32750 GR2507 SMLS Stub End

Size: 4 Inch (DN100)
Material: Super Duplex 2507 (UNS32750), etc

Super duplex stainless steel 2507 (UNS32750) Chemical Composition %

Grade Chemistry (Typical Values) Mechanicals
Specification Cr Ni Mo Cu N W Si Mn P
% (min)
HB (max)
2507 25.0 7.0 3.8 0.75 0.25 0.28 0.80 1.20 0.035 0.020 0.030 Bal 750 500-550 25 270 41


2507 SMLS Stub End


ASME B16.9, MSS SP-43, HG205099, HG20621,

GB/T12459-2005, GB/T13401, SH3408-96,etc.



Wall thickness



Type A, Type B,Type C

Surface treatment

Lathe finish&Abrasive blasting

Stainless steel

304, 304L,304H, 316, 316L,309S,310S, 321,321H,347H,316Ti

Duplex steel

2205, etc

Super duplex steel

2507, etc

MSS SP-43 ASTM A815 UNS32750 GR2507 SMLS Stub End

UNS32750 GR2507 SMLS Stub End

What are they?

UNS32750 GR2507 SMLS Stub Ends are fittings used in place of welded flanges where rotating back up flanges are desired.

They are also called Lap Joints and Vanstone Flared Laps.

How do they work?

A rotating back up flange seats itself against the back surface of the Stub End. When bolts are added, the clamping action of the bolts presses the rotating back up flange against the back of the Stub End. The gasket surface of the Stub End then presses against a gasket and another gasket surface providing joints like standard flange joints. The seal is made by the gasket surface of the stub end alone, the flange only provides the clamping pressure on the joint.


Since Stub Ends are made from material compatible with the designed piping system, back up flanges do not have to be made from the same material. The flange can be made from less expensive material because it never comes in contact with the process fluid.

UNS32750 GR2507 SMLS Stub Ends' Types
UNS32750 GR2507 SMLS Stub Ends are typically manufactured by two methods. Type A & B Stub Ends are made similar to forged fittings such as Elbows and Flanges. Type C Stub Ends are made by forming pipe to the desired dimensions.
UNS32750 GR2507 SMLS Stub Ends are available in two standard lengths, MSS and ANSI.
UNS32750 GR2507 SMLS Stub Ends are normally provided with a standard weld bevel
UNS32750 GR2507 SMLS Stub End dimensions are found on our fitting dimensions page.

Type "A" - Type "B" - Type "C" - Type "CS"

Where can we find the high quality MSS SP-43 ASTM A815 UNS32750 GR2507 SMLS Stub End.

You can visit this website: www.yaang.com (Zhejiang Yaang Pipe Industry Co., Limited).

If any inquiry, please feel free to contact by email sales@yaang.com

China MSS SP-43 ASTM A815 UNS32750 GR2507 SMLS Stub End wholesale

MSS SP-43 ASTM A815 UNS32750 GR2507 SMLS Stub End Images

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