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Titanium Weld Neck Flange

The Titanium Weld Neck Flange is designed for high-pressure and high-temperature applications requiring strong, reliable connections. It features a long tapered hub and a butt-welded end, making it ideal for severe service conditions. Titanium weld neck flanges offer excellent corrosion resistance, high strength-to-weight ratio, and long service life. These flanges are commonly used in chemical processing, aerospace, marine, oil and gas, and power generation industries.

We offer a full range of titanium weld neck flanges in grades such as Gr1, Gr2, Gr5 (Ti-6Al-4V), Gr7, and Gr12, conforming to standards including ASME B16.5, ANSI, EN1092-1, DIN, JIS and others.

Titanium Weld Neck Flange Key Features

Long neck ensures stress distribution at the weld area
Designed for high-pressure environments
Excellent corrosion and chemical resistance
Available in a range of titanium grades and international standards
Suitable for welded pipe systems

Titanium Weld Neck Flange Applications

Oil & gas transmission lines
Aerospace hydraulic and fuel systems
Marine engineering and desalination systems
High-purity chemical processing
Medical and industrial equipment
Heat exchangers and reactors

Titanium Weld Neck Flange Specifications Table

Size (NPS)	Outer Diameter (mm)	Hub Length (mm)	Thickness (mm)	Bolt Holes	Standard
1/2"	89	38	11	4	ASME B16.5
1"	108	48	13	4	EN1092-1
2"	150	60	16	8	ANSI / DIN
4"	229	76	19	8	JIS / ASME
6"	279	89	21	8	ASME B16.5
Custom	On request	On request	On request	On request	Based on Drawings

Titanium Weld Neck Flange Available Titanium Grades

Grade	Standard	Description
Gr1	ASTM B381	Commercially pure titanium, soft and excellent corrosion resistance
Gr2	ASTM B381	Most commonly used grade with moderate strength
Gr5	Ti-6Al-4V	High strength titanium alloy for aerospace and medical use
Gr7	Ti + Pd	Superior corrosion resistance to reducing acids
Gr12	Ti + Mo + Ni	Great resistance to corrosion and high-temperature environments