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Titanium C-23-HIP vs C-23-STA

Titanium · C-23 temper comparison

C-23-HIP and C-23-STA are two conditions of the same titanium grade, C-23: HIP (hot isostatic pressed) versus STA (solution treated and aged). The chemistry is identical, so every difference below comes from the condition. C-23-STA is the stronger of the two: yield strength 920 MPa (133 ksi) against 860 MPa (125 ksi) for C-23-HIP, about 7% more; tensile strength follows at 1,010 MPa (146 ksi) vs 930 MPa (135 ksi). In exchange, C-23-HIP is the more ductile: elongation 12% versus 8% for C-23-STA, and C-23-STA is harder (355 HB vs 330 HB).

C-23-HIPChoose it when the part is bent, formed or impact-loaded.

C-23-STAChoose it when strength drives the design.

C-23-HIP vs C-23-STA: properties

C-23-HIPC-23-STA

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

930 MPa135 ksi
1,010 MPa146 ksi

Yield Strength (0.2% offset)

860 MPa125 ksi
920 MPa133 ksi

Elongation at Break

12%
8%

Reduction in Area

22%
16%

Fatigue Strength (Endurance Limit)

500 MPa72.5 ksi
540 MPa78.3 ksi

Fracture Toughness (K_IC)

85 MPa·√m77.4 ksi·√in
68 MPa·√m61.9 ksi·√in

Charpy V-Notch Impact (RT)

24 J17.7 ft·lbf
18 J13.3 ft·lbf

Hardness, Brinell

330 HB
355 HB

Hardness, Rockwell C

34 HRC
36 HRC

Same in both: Elastic (Young's) Modulus 112 GPa16.2 Msi · Shear Modulus 42 GPa6.1 Msi · Bulk Modulus 108 GPa15.7 Msi · Poisson's Ratio 0.34 · Compressive Strength 950 MPa138 ksi · Shear Strength 580 MPa84.1 ksi · Hardness, Vickers 345 HV

Physical

Density and transition temperatures.

Same in both: Density 4.43 g/cm³0.16 lb/in³ · Melting Point (Solidus) 1,604°C2,919 °F · Liquidus Temperature 1,660°C3,020 °F

Thermal

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

Same in both: Thermal Conductivity 6.7 W/m·K3.9 BTU/hr·ft·°F · Specific Heat Capacity 560 J/kg·K0.13 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 8.8 µm/m·K4.9 µin/in·°F · Latent Heat of Fusion 365 J/g157 BTU/lb · Max Service Temperature (continuous) 400°C752 °F · Min Service Temperature -253°C-423 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 1 % IACS · Electrical Resistivity 1.71×10⁻⁶ Ω·m67.3 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Same in both: Galvanic Potential (seawater, vs SCE) -0.12 V · Corrosion Resistance 92 / 100

Manufacturability

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

Machinability

20 / 100
17 / 100

Same in both: Machinability Rating (AISI 1212 = 100 %) 22% · Weldability 75 / 100 · Formability (cold) 20 / 100 · 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) 45 kg CO₂/kg · Embodied Water 950 L/kg114 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-23

C-23-HIP vs C-23-STA — frequently asked

Is C-23-STA stronger than C-23-HIP?

Yes. C-23-STA has a typical yield strength of 920 MPa (133 ksi) against 860 MPa (125 ksi) for C-23-HIP — about 7% more. Tensile strength is 1,010 MPa (146 ksi) vs 930 MPa (135 ksi).

Which condition does FabDigit quote by default, HIP or STA?

HIP is the default C-23 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 C-23-HIP over C-23-STA?

Pick C-23-HIP when the part is bent, formed or impact-loaded. Pick C-23-STA when strength drives the design.

Ready to make it?

Upload a CAD file and FabDigit prices the part in C-23-HIP and C-23-STA 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.