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ASTM A182 F53 Super Duplex Steel 2507 Nipolet Fitting MSS SP-97

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ASTM A182 F53 Super Duplex Steel 2507 Nipolet Fitting MSS SP-97

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Brand Name :	YUHONG
Model Number :	ASMT A182 F53 Super Duplex Nipolet
Certification :	ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Payment Terms :	L/C, T/T
Delivery Time :	7days

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ASTM A182 F53 Super Duplex Steel 2507 Nipolet Fitting MSS SP-97

ASTM A182 F53 Super Duplex Steel 2507 / S32750 Nipolet , MSS SP-97 Pipe Fitting

MSS SP-97, titled Integrally Reinforced Forged Branch Outlet Fittings—Socket Welding, Threaded, and Buttwelding Ends, is a critical standard developed by the Manufacturers Standardization Society (MSS). It governs the design, manufacturing, and testing of forged branch outlet fittings used in high-pressure piping systems.

A Nipolet combines a branch outlet fitting (similar to Weldolet) with a flange, forming an integrated unit for 90° branch connections3.

It functions as a hybrid of three components:
- Weldolet/Nipolet (for branch integration)
- Flange (for bolted connection)
This design eliminates intermediate welds, enhancing structural integrity and leak prevention.

ASTM A182 F53 Super Duplex Pipe Fitting Specification

A Nipolet combines a branch outlet fitting (similar to Weldolet) with a flange, forming an integrated unit for 90° branch connections3.
It functions as a hybrid of three components:
- Weldolet/Nipolet (for branch integration)
- Flange (for bolted connection)
This design eliminates intermediate welds, enhancing structural integrity and leak prevention.

Chemical Composition of A182 F53 Super Duplex Pipe Fittings

UNS	C %	Cr %	Ni %	Mo %	N %	Mn %	Cu %	W	S	Si
S32750	< 0.03	24.0-26.0	6.0-8.0	3.0-5.0	0.24-0.32	< 1.20	< 0.5	-	-	-
2507	< 0.03	24.0-26.0	6.0-8.0	3.0-5.0	0.24-0.32	< 1.20	< 0.5	-	-	-
F53	< 0.03	24.0-26.0	6.0-8.0	3.0-5.0	0.24-0.32	< 1.20	< 0.5	-	-	-

Mechanical Propertities of A182 F53 Super Duplex Pipe Olet

Grade	YS (MPa)	TS (MPa)	% Elongation	Hardness(BHN)
UNS S32750	550 min.	795 min.	15 min.	310 max.
2507	550 min.	795 min.	15 min.	310 max.
F53	550 min.	795 min.	15 min.	310 max.

Design and Testing of pipe olet

Reinforcement Principle: Forged fittings eliminate the need for external reinforcement by integrating extra material around the branch junction310.
Testing:
- No Hydrostatic Testing: Fittings rely on validated design calculations instead of mandatory hydrotests10.
- Non-Destructive Examination (NDE): Mandatory radiography/ultrasonic testing for weld integrity3.
Marking Requirements: Each fitting must include:
- Manufacturer’s trademark, material grade (e.g., WPHY-52), size (Run NPS × Outlet NPS), and "SP-97"

Covers 90° branch connections (e.g., Weldolet, Elbolet, Sweepolet) for pipelines requiring full reinforcement without additional pads or saddles. These fittings integrate a branch outlet directly into the main pipe via forging.

Applications

Sectors: Oil and gas, chemical processing, power generation, and nuclear facilities.
Global Alignment: Works with ASME BPVC, ASTM, and API standards to ensure U.S. and international compliance.
Case Example: Hastelloy C276 Weldolets® for corrosive environments in chemical plants.

ASTM A182 F53 Super Duplex Steel 2507 Nipolet Fitting MSS SP-97

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