Titanium Ti Grade 36 Annealed vs Ti Grade 36-SR
Titanium · Ti Grade 36 temper comparison
Ti Grade 36 Annealed and Ti Grade 36-SR are two conditions of the same titanium grade, Ti Grade 36: Annealed versus SR (stress relieved). The chemistry is identical, so every difference below comes from the condition. Ti Grade 36-SR is the stronger of the two: yield strength 400 MPa (58 ksi) against 340 MPa (49.3 ksi) for Ti Grade 36 Annealed, about 18% more; tensile strength follows at 470 MPa (68.2 ksi) vs 420 MPa (60.9 ksi). In exchange, Ti Grade 36 Annealed is the more ductile: elongation 25% versus 20% for Ti Grade 36-SR, and Ti Grade 36-SR is harder (157 HB vs 138 HB).
Ti Grade 36 AnnealedChoose it when the part is bent, formed or impact-loaded.
Ti Grade 36-SRChoose it when strength drives the design.
Ti Grade 36 Annealed vs Ti Grade 36-SR: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all titanium grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
How to read these bars
- One bar per material. A full bar is the highest value among all titanium grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
Ti Grade 36 AnnealedTi Grade 36-SR
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 62 GPa9 Msi · Shear Modulus 23 GPa3.3 Msi · Bulk Modulus 69 GPa10 Msi · Poisson's Ratio 0.35
Physical
Density and transition temperatures.
Same in both: Density 5.7 g/cm³0.21 lb/in³ · Melting Point (Solidus) 1,720°C3,128 °F · Liquidus Temperature 1,810°C3,290 °F
Thermal
How each material carries heat and how hot it can run.
Same in both: Thermal Conductivity 10 W/m·K5.8 BTU/hr·ft·°F · Specific Heat Capacity 405 J/kg·K0.1 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 8 µm/m·K4.4 µin/in·°F · Latent Heat of Fusion 340 J/g146 BTU/lb · Max Service Temperature (continuous) 300°C572 °F · Min Service Temperature -253°C-423 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 2.9 % IACS · Electrical Resistivity 6×10⁻⁷ Ω·m23.6 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.1 V · Corrosion Resistance 92 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Same in both: Castability 35 / 100 · Brazeability / Solderability 45 / 100 · Polishability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 720 MJ/kg309,545 BTU/lb · Embodied Carbon (primary production) 46 kg CO₂/kg · Embodied Water 900 L/kg108 gal/lb · Typical Recycled Content 20%
Strength versus weight
Yield strength against density for every titanium grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.
Ti Grade 36 Annealed vs Ti Grade 36-SR — frequently asked
Is Ti Grade 36-SR stronger than Ti Grade 36 Annealed?
Yes. Ti Grade 36-SR has a typical yield strength of 400 MPa (58 ksi) against 340 MPa (49.3 ksi) for Ti Grade 36 Annealed — about 18% more. Tensile strength is 470 MPa (68.2 ksi) vs 420 MPa (60.9 ksi).
Which condition does FabDigit quote by default, Annealed or SR?
Annealed is the default Ti Grade 36 condition in the FabDigit quote flow. The other condition is available on request or by drawing note — specify it in the material field or the part notes and the quote is priced for it.
When should I choose Ti Grade 36 Annealed over Ti Grade 36-SR?
Pick Ti Grade 36 Annealed when the part is bent, formed or impact-loaded. Pick Ti Grade 36-SR when strength drives the design.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Ti Grade 36 Annealed and Ti Grade 36-SR side by side — material, machining time, tolerance and finish in one quote. Certified material data ships with the order on request.
Typical handbook values for the conditions named above, normalised for comparison. Hardness on non-Brinell scales is converted approximately for charting only. Request certified data with your order for design-critical properties.