Long Weld Neck Flanges

Product Description

Long Weld Neck Flanges are widely used in refining industries for linking purposes. It is mainly used for applications where high pressure is main factor. This neck flanges are manufactured under the vigilance of our skilled professionals by using latest technologies in compliance with the set quality norms. Our offered neck flanges are available in different specifications which can be customized as per the needs of our valued customers. Our offered Long Weld Neck Flanges are known for their excellent durability, fine finish and corrosion resistance. 

Specification

Flange Face Type	Weld Neck
Usage/Application	Industrial
Material Standard	ASTM A105,ANSI B16.5,ASTM A182
Finishing	Bright
Material	Stainless Steel

RANGE :

1/2" (15 NB) to 60" (1500NB) in 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS ASA 150, ASA 300, PN 6,10,16,25, 40,64,100,160 ETC. available with NACE MR 01-75

SIZE :

1/2" (15NB) to 60" (1500NB)

CLASS / PRESSURE :

Class / Pressure : 150#, 300#, 600#, 900#, 1500#, 2500# PN6, PN10, PN16, PN25, PN40, PN64

DIMENSION :

B16.5, BS4504, EN-1092, B16.36, B16.47, B16.48, MSS SP44

STD :

STD : ANSI Flanges, ASME Flanges, DIN Flanges, EN Flanges, BS Flanges, API, JIS, NACE etc.

FEATURES :

• Dimensional accuracy, Corrosion resistance, High efficiency, Excellent finish, Durable

 

Stainless Steel Long Weld Neck Flanges :

• Standard : ASTM / ASME A/SA 182
• Grade : F 304, 304L, 304H, 309S, 309H, 310S, 310H, 316, 316TI, 316H, 316L, 316LN, 317, 317L, 321, 321H, 347, 347H, 904L

 

Duplex Steel Long Weld Neck Flanges :

• Standard : ASTM / ASME A/SA 182
• Grade : F 44, F 45, F51, F 53, F 55, F 60, F 61

 

Aluminium Long Weld Neck Flanges :

• Standard : ASTM B247, B361.
• Grade : 2024, 6061, 6063, 6101, 7075.

 

Titanium Long Weld Neck Flanges :

• Standard : ASTM B381.
• Grade : Grade 1, Grade 2, Grade 4, Grade 5, Grade 6, Grade 7, Grade 9, Grade 19, Grade 23

 

Carbon Steel Long Weld Neck Flanges :

• Standard : ASTM A 105/A694/ A350 LF3/A350 LF2.
• Grade : F42/46/52/56/60/65/70

 

Low Temperature Carbon Steel Long Weld Neck Flanges :

• Standard : ASTM A 350 LF2 / A350 LF3

 

Alloy Steel Long Weld Neck Flanges :

• Standard : ASTM A182
• Grade : F1/F5/F9/F11/F22/F91

 

Copper Alloy Long Weld Neck Flanges :

• Standard : ASTM / ASME SB 61 / 62 / 151 / 152.
• Grade : UNS NO. C 70600 (CU -NI- 90/10), C 71500 (CU -NI- 70/30) C 71640

 

• Nickel Alloy Weld Neck Flanges :

  • Standard : ASTM / ASME SB 564 / 160 / 472
  • Nickel 200 - UNS N02200   
  • Nickel 201 - UNS N02201
  • Monel 400 - UNS N04400
  • Monel K500 - UNS N05500
  • Inconel K600 - UNS N06600
  • Inconel 601 - UNS N06601
  • Inconel 625 - UNS N06625   
  • Inconel 800 - UNS N08800
  • Inconel 800H - UNS N08810
  • Inconel 825 - UNS N08825
  • Hastelloy C276 - UNS N10276
  • Alloy 20 - UNS N08020

 

Test Certificate :

Manufacturer Test Certificate as per EN 10204 / 3.1 

Exceptional Durability and Safety

Long Weld Neck Flanges deliver excellent strength and leak-proof performance in demanding environments such as oil & gas, petrochemical plants, and power facilities. Materials like ASTM A105 and SS316 provide durability under extreme conditions, while advanced coatings ensure long-term rust and corrosion resistance.


Comprehensive Testing and Certification

Every flange undergoes thorough inspectionsultrasonic, PMI, hydrostatic, and visual teststo verify quality and integrity. Certified according to EN 10204 3.1/3.2, ISO, and PED standards, these flanges meet rigorous industry and safety requirements for reliable use across global projects.


Custom Manufacturing and Packaging Solutions

Flanges are produced in a range of sizes, styles, and finishes, meeting ANSI, DIN, JIS, and other international standards. Packaging options, including wooden cases and pallets, are tailored to customer requirements, ensuring safe delivery and preservation during transit.