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Titanium Grade 23-CW vs Grade 23-O

Titanium · Grade 23 temper comparison

Grade 23-CW and Grade 23-O are two conditions of the same titanium grade, Grade 23: CW (cold worked) versus O (annealed). The chemistry is identical, so every difference below comes from the condition. Grade 23-CW is the stronger of the two: yield strength 960 MPa (139 ksi) against 850 MPa (123 ksi) for Grade 23-O, about 13% more; tensile strength follows at 1,050 MPa (152 ksi) vs 930 MPa (135 ksi). In exchange, Grade 23-O is the more ductile: elongation 15% versus 10% for Grade 23-CW, and Grade 23-CW is harder (340 HB vs 320 HB). Grade 23-O runs hotter in service (350°C vs 300°C continuous).

Grade 23-CWChoose it when strength drives the design.

Grade 23-OChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.

Grade 23-CW vs Grade 23-O: properties

Grade 23-CWGrade 23-O

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

1,050 MPa152 ksi
930 MPa135 ksi

Yield Strength (0.2% offset)

960 MPa139 ksi
850 MPa123 ksi

Elongation at Break

10%
15%

Reduction in Area

28%
35%

Compressive Strength

1,080 MPa157 ksi
970 MPa141 ksi

Shear Strength

640 MPa92.8 ksi
580 MPa84.1 ksi

Fatigue Strength (Endurance Limit)

560 MPa81.2 ksi
510 MPa74 ksi

Fracture Toughness (K_IC)

70 MPa·√m63.7 ksi·√in
85 MPa·√m77.4 ksi·√in

Charpy V-Notch Impact (RT)

16 J11.8 ft·lbf
22 J16.2 ft·lbf

Hardness, Brinell

340 HB
320 HB

Hardness, Rockwell C

36 HRC
33 HRC

Hardness, Vickers

360 HV
340 HV

Same in both: Elastic (Young's) Modulus 113 GPa16.4 Msi · Shear Modulus 44 GPa6.4 Msi · Bulk Modulus 110 GPa16 Msi · Poisson's Ratio 0.34

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.

Max Service Temperature (continuous)

300°C572 °F
350°C662 °F

Same in both: Thermal Conductivity 6.7 W/m·K3.9 BTU/hr·ft·°F · Specific Heat Capacity 526 J/kg·K0.13 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 8.6 µm/m·K4.8 µin/in·°F · Latent Heat of Fusion 365 J/g157 BTU/lb · Min Service Temperature -253°C-423 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

1.73×10⁻⁶ Ω·m68.1 µΩ·in
1.71×10⁻⁶ Ω·m67.3 µΩ·in

Same in both: Electrical Conductivity 1 % IACS

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

18 / 100
20 / 100

Machinability Rating (AISI 1212 = 100 %)

20%
22%

Weldability

75 / 100
80 / 100

Formability (cold)

20 / 100
35 / 100

Same in both: Castability 40 / 100 · Brazeability / Solderability 35 / 100 · Polishability 80 / 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 480 L/kg57.5 gal/lb · Typical Recycled Content 15%

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 scaleGrade 23

Grade 23-CW vs Grade 23-O — frequently asked

Is Grade 23-CW stronger than Grade 23-O?

Yes. Grade 23-CW has a typical yield strength of 960 MPa (139 ksi) against 850 MPa (123 ksi) for Grade 23-O — about 13% more. Tensile strength is 1,050 MPa (152 ksi) vs 930 MPa (135 ksi).

Which condition does FabDigit quote by default, CW or O?

O is the default Grade 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.

Which welds better, Grade 23-CW or Grade 23-O?

Grade 23-O. Its weldability rates very good (80/100) against very good (75/100) for Grade 23-CW.

Ready to make it?

Upload a CAD file and FabDigit prices the part in Grade 23-CW and Grade 23-O 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.