316Ti / 1.4571 Stainless Steel | Intamet Ltd
316Ti Stainless Steel is a variant of 316 stainless steel alloyed with titanium for improved corrosion resistance, particularly in high temperature environments.
316Ti stainless steel is a variant of 316 that is alloyed with titanium. The addition of titanium to the steel gives it improved resistance to corrosion, particularly in environments with high temperatures and high concentrations of chlorides. The titanium content of 316Ti is typically around 0.5%.
316Ti stainless steel is often used in the construction of heat exchangers, furnace parts, and chemical and petrochemical equipment. It is also used in the food and pharmaceutical industries, as well as in marine environments. The high resistance to corrosion makes it suitable for use in applications where the steel will be exposed to saltwater or other corrosive substances.
The mechanical properties of 316Ti Stainless Steel are similar to those of standard 316 stainless steel, with a slightly higher yield strength and a lower elongation at break. The material is also non-magnetic and has a good weldability and formability.
316Ti Stainless Steel has better resistance to intergranular corrosion than regular 316 stainless steel. This makes it less prone to sensitisation caused by high temperatures. This can cause the steel to become brittle and susceptible to cracking.
When it comes to welding 316Ti stainless steel, it is best to use a filler metal with a higher titanium content than the base metal. This will help to prevent the formation of carbides in the weld zone and ensure that the weld has the same corrosion resistance as the base metal.
Overall, 316Ti Stainless Steel is a versatile stainless steel that is well suited for a wide range of applications in harsh environments. Its strong resistance to rust, along with its good strength, makes it perfect for many different industries.
The physical and mechanical properties of 316Ti Stainless Steel, also known as 1.4571, are as follows:
Physical Properties:
- Density: 8.03 g/cm3
- Melting point: 1399-1454 °C (2550-2650 °F)
- Specific heat: 500 J/kg·K
- Thermal conductivity: 16.3 W/m·K
Mechanical Properties:
- Tensile strength: 515-690 MPa (75-100 ksi)
- Yield strength: 205-450 MPa (30-65 ksi)
- Elongation at break: 40-50%
- Hardness: Rockwell B: 95 max
- Modulus of Elasticity: 193 GPa (28 x 106 psi)
- Poisson's ratio: 0.29
Please note that the mechanical properties may vary slightly depending on the specific grade of 316Ti being used, and also the testing condition. The physical and mechanical properties of 316Ti are similar to those of standard 316 stainless steel, but with a slightly higher yield strength and a lower elongation at break.
The material is also non-magnetic and has a good weldability and formability. It is more resistant to intergranular corrosion, making it less likely to be affected by sensitisation caused by high temperatures. The high resistance to corrosion and high temperature environments makes it suitable for use in a wide range of applications.
Chemical Composition of 316Ti Stainless Steel
The chemical composition of 316Ti, also known as 1.4571, is typically as follows:
- Iron (Fe): balance
- Chromium (Cr): 16-18%
- Nickel (Ni): 10-14%
- Molybdenum (Mo): 2-3%
- Titanium (Ti): 0.5-0.7%
- Manganese (Mn): 2% max
- Silicon (Si): 1% max
- Phosphorus (P): 0.045% max
- Sulfur (S): 0.03% max
- Carbon (C): 0.08% max
- Nitrogen (N): 0.1% max
Please note that the chemical composition may vary slightly depending on the manufacturer or the specific grade of 316Ti stainless steel being used. The chemical composition of the 316Ti is specifically designed to improve the steel's resistance to corrosion, particularly in high temperature environments.
Variants of 316
There are different types of 316 stainless steel made for specific uses or to enhance certain material qualities. Some of the most common variants include:
- 316Ti: This variant of 316 is alloyed with titanium to improve its resistance to corrosion, particularly in environments with high temperatures and high concentrations of chlorides.
- 316L: This variant of 316 is low carbon, for improved resistance to intergranular corrosion and improved welding characteristics
- 316H: This variant of 316 is a high carbon version, which improves its strength and hardness. It is often used in high-stress applications such as valves and pumps.
- 316LN: This variant of 316 is nitrogen-alloyed to improve its strength and toughness. It is often used in high-stress applications such as aerospace and nuclear power plants.
- 316F: This variant of 316 is free-machining, with added sulfur, it is often used in the manufacture of gears, bearings, and other precision components.
- 316L Mod: This variant of 316 is modified to improve its machinability. It is often used in the manufacture of gears, bearings, and other precision components.
- 316L-Si: This variant of 316 is alloyed with silicon to improve its resistance to corrosion and oxidation. It is often used in high-temperature applications such as furnace components and heat exchangers.
The above options are just examples, and there are other options available to meet specific needs. There are more options available to meet specific needs, in addition to the examples mentioned above. One such option is 316L-Mo, which provides better protection against certain types of corrosion. Another option is 316L-Cu, which offers better protection against a different type of corrosion.
AVAILABLE FORMS
Intamet offers 316 Ti in a wide range of forms, including the below: