Stainless steel wires are in high demand for their excellent properties, such as corrosion resistance and strength. Based on their chemical composition, stainless steel is classified into different grades.

In this article, we will explore stainless steel grade 316 Ti wires, which are highly corrosion-resistant and exhibit excellent behaviour even at high temperatures.

About 316 Ti Stainless Steel Wire

316 Ti is a stabilised grade of 316 stainless steel. It consists of around .07% of Titanium making it suitable for high-temperature applications. The presence of titanium also results in higher corrosion resistance even in environments with high concentrations of chlorides. It is also non-magnetic and shows good weldability and formability.

Chemistry Typical

Apart from titanium, grade 316 Ti also has a good amount of nickel and chromium. Let us look at its detailed chemical composition:

  • Carbon: 0.08 max%
  • Manganese: 2.00 max%
  • Silicon: 1.00 max%
  • Chromium: 16.00-18.00%
  • Nickel: 10.00-14.00%
  • Molybdenum: 2.00-3.00%
  • Titanium: 5 x (Carbon + Nitrogen) – 0.07%
  • Phosphorus: 0.040% max
  • Sulfur: 0.030% max
  • Copper: 0.075% max
  • Iron: Balance

Physical Properties of 316 Ti Stainless Steel

The physical properties of 316Ti Stainless Steel are as follows:

  • Density: 0.29 lbs/in³, 7.99 g/cm³
  • Electrical Resistivity: microhm-in (microhm-cm): 68°F (20°C): 29.4 (74.0)
  • Specific Heat: BTU/lb/°F (kJ/kg•K): 32-212°F (0-100°C): 0.12 (0.50)
  • Thermal Conductivity: BTU/hr/ft²/ft/°F (W/m•K):
    • At 212°F (100°C): 9.4 (16.2)
    • At 932°F (500°C): 12.4 (21.4)
  • Mean Coefficient of Thermal Expansion, in/in/°F (μm/m•K):
    • 32-212°F (0-100°C): 8.9 x 10 (16.0)
    • 32-600°F (0-315°C): 9.0 x 10 (16.2)
    • 32-1000°F (0-538°C): 9.7 x 10 (17.5)
    • 32-1200°F (0-649°C): 10.3 x 10 (18.5)
    • 32-1500ºF (0-871ºC): 11.1 x 10 (18.5)
  • Modulus of Elasticity: KSI (MPa)
    • 0 x 10³(193 x 10³) in tension
    • 2 x 10³(77 x 10³) in torsion
  • Magnetic Permeability: H = 200 Oersteds: Annealed: < 1.02 max.
  • Melting Range: °F (°C) 2500 – 2590 (1371 – 1421)

Mechanical Properties of 316 Ti SS at Room Temperature

Here are some mechanical properties of 316Ti stainless steel at room temperature:

  • 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

Annealed Condition Typical

The properties of grade 316 Ti in its annealed condition are:

  • Ultimate Tensile Strength: 75 KSI min (515 MPa min)
  • Yield Strength: (0.2% Offset) 30 KSI min (205 MPa min)
  • Elongation: 40% min
  • Hardness: Rb 95 max
  • Properties: Tempered
  • 1/16H
    • Ultimate Tensile Strength: 85 KSI min (585 MPa min)
    • Yield Strength: (0.2% Offset) 45 KSI min (310 MPa min)
    • Elongation: 35% min
  • 1/8H
    • Ultimate Tensile Strength: 100 KSI min (690 MPa min)
    • Yield Strength: (0.2% Offset) 55 KSI min (380 MPa min)
    • Elongation: 35% min
  • 1/4H
    • Ultimate Tensile Strength: 125 KSI min (860 MPa min)
    • Yield Strength: (0.2% Offset) 75 KSI min (515 MPA min)
    • Elongation: 10% min

316 Ti Corrosion Resistance Wire

Grade 316 Ti is highly corrosion resistant even in high -temperatures. The presence of Molybdenum and Titanium makes it highly corrosion resistant even in chloride solutions and increases its strength in high-temperature environments. It is also resistant to acids, such as sulfuric acids, hydrochloric acids, and acid sulfates.

316 Ti Stainless Steel Wire Applications

Some of the common applications of 316 Ti Stainless steel wire are:

  • Pulp and Paper Equipment
  • Screening application in marine environment
  • Propeller shafts, Fittings
  • Heat exchangers
  • Exterior Architectural Components in Marine Coastal Areas