316Ti Stainless Steel (1.4571)

316Ti stainless steel is a titanium-stabilised alloy offering excellent corrosion resistance and strength in high-temperature environments.

316Ti Stainless Steel

316Ti stainless steel is a variant of 316 that includes titanium for added stability at elevated temperatures. This addition helps prevent sensitisation, a condition where chromium carbides form at grain boundaries, reducing corrosion resistance, making 316Ti ideal for extended exposure to high heat.

Often used in aggressive environments where both corrosion resistance and long-term structural integrity are required, 316Ti is commonly found in heat exchangers, furnace parts, and chemical processing equipment. It also performs well in chloride-rich and marine environments due to its molybdenum content, which improves resistance to pitting and crevice corrosion.

316Ti stainless steel offers good weldability and formability. Its mechanical properties are comparable to standard 316, though the titanium addition gives it slightly higher yield strength and enhanced resistance to intergranular corrosion.

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AVAILABLE FORMS

Intamet offers 316 Ti in a wide range of forms, including the below:

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What are the Mechanical Properties of 316Ti Stainless Steel?

Typical mechanical properties of 316Ti (1.4571) include:

Tensile Strength: 515–690 MPa (75–100 ksi)
Yield Strength: 205–450 MPa (30–65 ksi)
Elongation at Break: 40–50%
Hardness: Rockwell B95 max
Modulus of Elasticity: 193 GPa (28 × 10⁶ psi)
Poisson’s Ratio: 0.29

These values may vary depending on product form and manufacturing method. The addition of titanium enhances resistance to high-temperature creep and stress rupture.

What are the Physical Properties of 316Ti Stainless Steel?

316Ti stainless steel has the following typical physical properties:

Density: 8.03 g/cm³
Melting Point: 1399–1454 °C (2550–2650 °F)
Specific Heat Capacity: 500 J/kg·K
Thermal Conductivity: 16.3 W/m·K
Thermal Expansion: ~16 × 10⁻⁶ /K
Modulus of Elasticity: 193 GPa

These properties support its use in thermal processing equipment, structural applications at high temperatures, and marine or corrosive environments.

Are There Variants of 316 Stainless Steel?

Yes, 316Ti is one of several engineered variants of 316 stainless steel, each offering tailored performance:

316L: Low-carbon version for improved weldability and resistance to intergranular corrosion

316H: High-carbon variant for enhanced strength and hardness in elevated temperatures

316LN: Nitrogen-strengthened version for greater toughness and high-stress use

316F: Free-machining grade used in precision components

316L Mod: Modified for improved machinability

316L-Si: Silicon-enhanced variant for oxidation resistance at high temperatures

316L-Mo: Improved resistance to pitting and crevice corrosion

316L-Cu: Enhanced resistance to stress corrosion cracking

What is the Chemical Composition of 316Ti Stainless Steel?

The typical chemical composition of 316Ti / 1.4571 includes:

Iron (Fe): Balance
Chromium (Cr): 16–18%
Nickel (Ni): 10–14%
Molybdenum (Mo): 2–3%
Titanium (Ti): 0.5–0.7%
Manganese (Mn): ≤ 2.00%
Silicon (Si): ≤ 1.00%
Phosphorus (P): ≤ 0.045%
Sulfur (S): ≤ 0.030%
Carbon (C): ≤ 0.08%
Nitrogen (N): ≤ 0.10%

The titanium stabilisation (typically around 0.5%) is key to its improved corrosion resistance under heat, particularly against intergranular corrosion.

Where is 316Ti Stainless Steel Used?

316Ti stainless steel is suited to harsh operating environments, especially those involving high temperatures and chlorides. Common applications include:

Heat exchangers and furnace components
Chemical and petrochemical processing equipment
Marine structures and piping
Food and pharmaceutical processing
Welded pressure vessels and tanks

Its formability and weldability also make it ideal for fabrications requiring durability and resistance to sensitisation.

316Ti Stainless Steel (1.4571)