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Titanium C-12-A vs C-12-F

Titanium · C-12 temper comparison

C-12-A and C-12-F are two conditions of the same titanium grade, C-12: A (solution annealed) versus F (as fabricated). The chemistry is identical, so every difference below comes from the condition. Both yield at about 455 MPa — the mechanical properties are the same, and the difference is in how the stock is processed and what it is certified to (solution annealed versus as fabricated). C-12-A is the more ductile: elongation 12% versus 10% for C-12-F.

C-12-AChoose it when the part is bent, formed or impact-loaded.

C-12-A vs C-12-F: properties

C-12-AC-12-F

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

560 MPa81.2 ksi
550 MPa79.8 ksi

Yield Strength (0.2% offset)

455 MPa66 ksi
450 MPa65.3 ksi

Elongation at Break

12%
10%

Reduction in Area

20%
16%

Compressive Strength

480 MPa69.6 ksi
470 MPa68.2 ksi

Shear Strength

380 MPa55.1 ksi
375 MPa54.4 ksi

Fatigue Strength (Endurance Limit)

280 MPa40.6 ksi
240 MPa34.8 ksi

Fracture Toughness (K_IC)

65 MPa·√m59.2 ksi·√in
58 MPa·√m52.8 ksi·√in

Charpy V-Notch Impact (RT)

25 J18.4 ft·lbf
20 J14.8 ft·lbf

Hardness, Brinell

210 HB
215 HB

Hardness, Rockwell B

95 HRB
96 HRB

Hardness, Vickers

220 HV
225 HV

Same in both: Elastic (Young's) Modulus 103 GPa14.9 Msi · Shear Modulus 45 GPa6.5 Msi · Bulk Modulus 110 GPa16 Msi · Poisson's Ratio 0.34

Physical

Density and transition temperatures.

Same in both: Density 4.51 g/cm³0.16 lb/in³ · Melting Point (Solidus) 1,650°C3,002 °F · Liquidus Temperature 1,700°C3,092 °F

Thermal

How each material carries heat and how hot it can run.

Max Service Temperature (continuous)

315°C599 °F
300°C572 °F

Same in both: Thermal Conductivity 19 W/m·K11 BTU/hr·ft·°F · Specific Heat Capacity 540 J/kg·K0.13 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 9.5 µm/m·K5.3 µin/in·°F · Latent Heat of Fusion 395 J/g170 BTU/lb · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 3.3 % IACS · Electrical Resistivity 5.2×10⁻⁷ Ω·m20.5 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

93 / 100
91 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.1 V

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

28 / 100
26 / 100

Machinability Rating (AISI 1212 = 100 %)

22%
20%

Weldability

85 / 100
80 / 100

Formability (cold)

30 / 100
22 / 100

Same in both: Castability 60 / 100 · Brazeability / Solderability 40 / 100 · Polishability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 700 MJ/kg300,946 BTU/lb · Embodied Carbon (primary production) 42 kg CO₂/kg · Embodied Water 500 L/kg59.9 gal/lb · Typical Recycled Content 25%

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.

3005007001,0004.555.5Density (g/cm³)Yield strength (MPa) — log scaleC-12

C-12-A vs C-12-F — frequently asked

What is the difference between C-12-A and C-12-F?

C-12-A and C-12-F are two conditions of the same titanium grade, C-12: A (solution annealed) versus F (as fabricated). The chemistry is identical, so every difference below comes from the condition. Both yield at about 455 MPa — the mechanical properties are the same, and the difference is in how the stock is processed and what it is certified to (solution annealed versus as fabricated).

Which condition does FabDigit quote by default, A or F?

A is the default C-12 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.

Which welds better, C-12-A or C-12-F?

C-12-A. Its weldability rates excellent (85/100) against very good (80/100) for C-12-F.

Ready to make it?

Upload a CAD file and FabDigit prices the part in C-12-A and C-12-F 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.