
Weld Neck Flanges
M Metal Tubes India Pvt Ltd, an ISO 9001:2008 certified company with over four decades of industry expertise, is a trusted name in the supply of Weld Neck Raised Face (WNRF) Flanges. These flanges are engineered for reliability, durability, and exceptional performance under extreme conditions.
What Are Weld Neck Flanges?
Weld Neck Flanges are designed with a long tapered hub and are welded to the base of pipes to ensure seamless fluid flow. The bore of the flange matches the pipe bore, minimizing turbulence and erosion. These flanges are ideal for high-pressure and high-temperature environments, and they offer excellent stress distribution and fatigue resistance.
WNRF Flange Material Grades We Offer
- Stainless Steel Weld Neck Flanges (SS 304, SS 316, etc.)
- Carbon Steel Weld Neck Flanges
- Alloy Steel Weld Neck Flanges
- Duplex & Super Duplex Steel Weld Neck Flanges
- Copper Nickel Weld Neck Flanges (Cu-Ni 90/10, 70/30)
- Hastelloy, Incoloy, Inconel, Monel WNRF Flanges
Key Features of Our Weld Neck Flanges
- High mechanical strength and structural integrity
- Leak-proof joint even under extreme pressure
- Flaw detection through radiography is possible
- Ideal for fluctuating and sub-zero temperature conditions
- Widely used in high-stress piping systems
Applications of WNRF Flanges
Our Weld Neck Flanges are widely used in industries that demand strength and longevity such as:
- Oil & Gas Refineries
- Power Generation & Thermal Plants
- Petrochemical & Chemical Processing
- Pharmaceutical & Food Processing Units
- Marine, Shipbuilding & Subsea Pipelines
Standards & Specifications
- ANSI B16.5 and ANSI B16.47 Standards
- Sizes: ½” to 60” | Pressure Ratings: Class 150 to 2500
- Face Types: Raised Face (RF), Ring Type Joint (RTJ)
Why Choose M Metal Tubes India Pvt Ltd?
With over 40 years of commitment to quality and precision, we are a preferred Weld Neck Flange Supplier in India and across global markets. Our flanges are manufactured using cutting-edge technology, quality-tested under stringent norms, and delivered on-time worldwide.
Need Custom Weld Neck Flanges?
Get in touch with our sales team for customized dimensions, bulk orders, or technical queries. We provide detailed product documentation and reliable logistics support globally.


Copper Pipe Fittings

Copper Forged Fittings

Copper Pipes
Specification
Manufacturer of WAO-LOC
TYPE : Slip on, Weldneck, Blind, Socket Weld, Threaded, Lap joint (Stubend) Ring Joint,
DIMENSIONS : As per ANSI B 16.5 for forged steel flange.
SIZE : 1/2”, 3/4”, 1”, 1 1/4: 1 1/2”
MATERIAL : As per ASTM A 105 (High Temperature Service) as per ASTM A181 (General Service ) Carbon Steel Grade ASTM A 182 for High
TEMPERATURE SERVICE : For SS 304 & SS 316
Threaded Reducing & Orifice Pressure Rating as per BS 10 : 1962
Delivery Condition
Annealed and Pickled, Polished, Bright Annealed, Cold Drawn