Introduction Of Titanium Grade 5 Flanges

As welding neck flanges for use in the petrochemical and pharmaceutical industries, grade 5 alloy titanium or commercially pure titanium flanges are forged into blind, lap, and flat weld flanges that are used for inspection and cleaning.

These endure deep-sea submersion, extreme temperatures, and pressure. The distinctive chemistry offers significant weight and augments strength. Grade 5 flanges also have proficient fatigue and abrasion resistance, sealing capability, non-magnetism, non-toxicity, machinability, and, as expected, non-cavitating durability against corrosion and high temperature, which ensures longevity.

Other grade 5 alloy titanium flanges are used predominantly in the aerospace industry. These are ideal for spacecraft and aircraft due to their endurance to harsh conditions. Flanges also further reduce aircraft weight, which enhances performance, flight safety, and flight stability.

Commercially Pure Titanium and Grade 5 titanium flanges are processed using the boosting method, which allows for the manufacture of blind flanges, flat welding flanges, lap flanges, inspection flanges, and welding neck flanges for use in the petrochemical and pharmaceutical industries.

Both types of flanges endure multiple deep-sea water submersion, extreme and non-uniform temperature and pressure forces, and submersion in deep-sea waters. Their unique structure, from extreme weight and strength, enhances these further. Grade 5 titanium flanges are expected to show enhanced fatigue and wear resistance, reliability, ultrasonic machinability, sealing capability, non-corrosiveness, non-toxicity, high temperature endurance, non-magnetism, and low dissolution rates. Due to these elements having unparalleled strength, they become ideal.

The aerospace industry constitutes its primary market. Machined flanges from grade 5 titanium are beneficial to advanced aircraft and spacecraft. Less weight results in improved performance, enhanced flight stability, and increased safety, further bolstering their appeal.

Features Of Titanium Grade 5 Flanges

1. Corrosion resistance. It is extremely stable in oxidative, neutral, and weakly reducing media.

2. Welding compatibility. Welding can be used by TIG, MIG, and other processes, and the weld strength reaches more than 90% of the base material, and is suitable for large valve segment manufacturing.

3. Bio-Environmental Compatibility. The magnetic permeability is 1.0001, suitable for medical MRI equipment; it has good compatibility with human tissues and can be used in pharmaceutical and food-grade valves. Titanium recycling rate is as high as 95%, the waste is free of heavy metal pollution, and it complies with the EU RoHS Directive.

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Application Of Titanium Grade 5 Flanges

It is used in submarine ballast water systems and aircraft carrier steam turbine condenser valves, with a corrosion resistance of seawater erosion and corrosion rate <0.005mm/year. Wellhead oil recovery tree valve used in crude oil mining. Used for the turbo pump valve of a liquid oxygen/kerosene engine, passes the vacuum thermal cycle test, and has no leakage. In the Wanmike exploration well, it is used as a mud pulser valve, which is resistant to 175MPa hydrostatic pressure and 120℃ high temperature, and resistant to H₂S partial pressure 3MPa corrosion.

Specification of Titanium Grade 5 Flanges

Grade	GR5(Ti-6Al-4V)
Purity	Ti≥99.9%
Technique	Rolling, Cutting, Drilling, Machining, Grinding, Polishing
Size(inches)	1/8" NB to 48" NB
Density	4.54g/cm3
Surface	Polished
Elongation	14-20%
Standard	ASTM B381, ASME B16.5, GB