316Ti stainless steel wire mesh is a titanium-stabilized version of Type 316 austenitic stainless steel mesh containing a certain of molybdenum element. It is also referred to as the DIN/EN name 1.4571 and its UNS equivalent UNS.S31635 wire mesh.

In comparison to traditional chromium-nickel austenitic stainless steels like Type 304, the Type 316 alloys provide exceptional resistance to general corrosion and pitting/crevice corrosion. At high temperatures, they also provide increased creep, stress rupture, and tensile strength. At temperatures between roughly 900 and 1500 °F (425 to 815 °C), sensitization, the development of grain boundary chromium carbides, can occur in type 316 stainless steel, which can lead to fast corrosion. Even though Type 316L with reduced carbon is immune to sensitization, prolonged exposure in this temperature range will eventually cause even the low carbon grade to become sensitized. With titanium additions to reinforce the structure against chromium carbide precipitation, the cause of sensitization, Type 316Ti filter mesh is able to resist sensitization. The titanium combines with the carbon to generate titanium carbides during an intermediate-temperature heat treatment, which stabilizes the material, reduces the development of chromium carbides, and greatly lowers vulnerability to sensitization in service.

As a result, the alloy's corrosion resistance can be employed for extended periods of time at high temperatures.

In reality, 316Ti is a derivation of grade 316, similar to the relationship between 321 and 304. Grade 316Ti is uncommon in the petrochemical and aerospace industries, while grade 321 is the titanium-stabilized version of 304.

316Ti is extremely well-liked in Europe for historical reasons. Germany and the Eastern European nations primarily maintain the grade's existence as the chosen material in many standards that haven't changed in decades. Since a long time ago, 316/316L has become the material of choice for chemical processing and aqueous corrosion applications in the North, South, and west of Germany.

What is the difference between 316, 316L, and 316 materials?

Types 1.4401 and 1.4404 of stainless steel are also known as grades 316 and 316L, respectively. Austenitic grade 316 is second only to 304 in commercial significance.

The addition of molybdenum to 316 stainless steel increases its corrosion resistance. This is particularly evident in chloride conditions with pitting and crevice corrosion.

316L, the low-carbon version of 316 stainless steel, is resistant to carbide precipitation at grain boundaries (sensitization). This makes it suitable for use in components with a thickness greater than 6 mm.

For applications involving extreme temperatures, 316H stainless steel with high carbon content and 316Ti stainless steel should be utilized.

Even at cryogenic temperatures, the austenitic structure of 316 stainless steel provides outstanding tensile strength.

316Ti stainless steel contains a minor quantity of titanium. Typically, titanium content is only about 0.5%. Titanium atoms stabilize the structure of 316 at temperatures over 800 degrees Celsius. This avoids carbide precipitation at grain boundaries and prevents corrosion of the metal. The primary benefit of 316Ti is that it can withstand higher temperatures for longer periods of time without sensitization (precipitation). 316Ti retains the same physical and mechanical qualities as ordinary 316 grades.

Chemical composition of 316Ti stainless steel wire mesh

Physical Properties of 316Ti filter screens

Physical Properties of 316Ti wire mesh

Regular Specification Table of plain weave and twill weave alloy 20 filter mesh

Regular specification table of 316Ti Plain Dutch Weave Wire Mesh.

Regular specification table of Twilled Dutch Weave 316Ti stainless steel woven wires.

Fabrication of 316 Ti Alloy Mesh
As an austenitic stainless steel mesh, 316Ti alloy filter mesh is frequently fabricated into different shapes ranging from very simple to quite complicated ones. These alloys are blanked, pierced, and shaped using the same machinery as carbon steel.
Due to their high ductility, austenitic alloys may be easily shaped by bending, stretching, deep drawing, and spinning. However, because of their superior strength and work hardenability, the austenitic grades demand significantly more power than carbon steels during forming processes. To handle the high strength and galling propensity of austenitic alloys, it is vital to pay close attention to lubrication throughout the forming process.
 

Annealing of 316Ti Alloy
The austenitic stainless steels are supplied in an annealed, ready-to-use state. In order to eliminate the effects of cold forming or dissolve precipitated chromium carbides caused by thermal exposures, heat treatment may be required during or after fabrication. For 316Ti alloy, solution annealing is achieved by heating in the range of 1900- 2150°F (1040-1175°C) and then air-cooling or quenching in water, depending on section thickness. For optimal resistance to sensitization, 316Ti alloy should be given a stabilizing heat treatment at 1550-1650°F (845-900°C) to precipitate titanium carbides and inhibit the precipitation of chromium carbides during lower temperature exposure. The 316Ti alloy cannot be heat-treated to harden.
 

Welding of 316Ti Alloy Filter Mesh
Austenitic stainless steel filter mesh products are regarded as the most weldable stainless steel material. All fusion and resistance welding techniques are often used to link them. There are two key issues for weld joints in these alloys;
The first one is the prevention of solidification cracking and the second one is the maintenance of corrosion resistance of the weld and heat-affected zones. 
Type 316Ti stainless steel wire mesh commonly is welded autogenously. If filler metal must be used for welding Type 316Ti, the low-carbon Types 316L or E318 filler metals are recommended. Copper or zinc contamination in the weld zone should be avoided, as these metals can generate compounds with a low melting point, which can lead to weld cracking.
After welding, stabilized austenitic stainless steel 316Ti alloy is susceptible to intergranular corrosion under specific circumstances. One such scenario results in what is known as a “knife line attack.” This reveals itself as a very small area of severe corrosion near a weld. This occurs when the metal close to the weld is subjected to temperatures in the sensitizing range (800-1500°F; 425-815°C) after being heated to a high temperature (more than 2100°F) to dissolve titanium carbides. At these temperatures, the rate of synthesis of titanium carbides is slow, and the free carbon interacts with chromium in the heat-affected zone to generate grain boundary carbides.

-Filter Screen in Marine environment.
-Filtering in Pulp and Paper Equipment
-Out Door Architectural Woven Wire Screens in Coastal Areas
-Food Processing Conveyor Belt Mesh and other food processing screen mesh.
-Coastal balustrading infill screen.
-Mining screen mesh products.