Titanium Ti Grade 38 Annealed vs Ti Grade 38-CW
Titanium · Ti Grade 38 temper comparison
Ti Grade 38 Annealed and Ti Grade 38-CW are two conditions of the same titanium grade, Ti Grade 38: Annealed versus CW (cold worked). The chemistry is identical, so every difference below comes from the condition. Ti Grade 38-CW is the stronger of the two: yield strength 970 MPa (141 ksi) against 810 MPa (117 ksi) for Ti Grade 38 Annealed, about 20% more; tensile strength follows at 1,050 MPa (152 ksi) vs 900 MPa (131 ksi). In exchange, Ti Grade 38 Annealed is the more ductile: elongation 15% versus 7% for Ti Grade 38-CW, and Ti Grade 38-CW is harder (320 HB vs 290 HB). Ti Grade 38 Annealed runs hotter in service (400°C vs 300°C continuous). On the shop floor, Ti Grade 38 Annealed welds better (very good vs good).
Ti Grade 38 AnnealedChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
Ti Grade 38-CWChoose it when strength drives the design.
Ti Grade 38 Annealed vs Ti Grade 38-CW: 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 38 AnnealedTi Grade 38-CW
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)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell C
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 105 GPa15.2 Msi · Shear Modulus 40 GPa5.8 Msi · Bulk Modulus 108 GPa15.7 Msi · Poisson's Ratio 0.33
Physical
Density and transition temperatures.
Same in both: Density 4.48 g/cm³0.16 lb/in³ · Melting Point (Solidus) 1,620°C2,948 °F · Liquidus Temperature 1,660°C3,020 °F
Thermal
How each material carries heat and how hot it can run.
Max Service Temperature (continuous)
Same in both: Thermal Conductivity 7 W/m·K4 BTU/hr·ft·°F · Specific Heat Capacity 530 J/kg·K0.13 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 9 µm/m·K5 µin/in·°F · Latent Heat of Fusion 390 J/g168 BTU/lb · Min Service Temperature -196°C-321 °F
Electrical
Conductivity and insulation.
Electrical Resistivity
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 85 / 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 25 / 100 · Brazeability / Solderability 40 / 100 · Polishability 65 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 620 MJ/kg266,552 BTU/lb · Embodied Carbon (primary production) 40 kg CO₂/kg · Embodied Water 320 L/kg38.3 gal/lb · Typical Recycled Content 35%
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 38 Annealed vs Ti Grade 38-CW — frequently asked
Is Ti Grade 38-CW stronger than Ti Grade 38 Annealed?
Yes. Ti Grade 38-CW has a typical yield strength of 970 MPa (141 ksi) against 810 MPa (117 ksi) for Ti Grade 38 Annealed — about 20% more. Tensile strength is 1,050 MPa (152 ksi) vs 900 MPa (131 ksi).
Which condition does FabDigit quote by default, Annealed or CW?
Annealed is the default Ti Grade 38 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, Ti Grade 38 Annealed or Ti Grade 38-CW?
Ti Grade 38 Annealed. Its weldability rates very good (70/100) against good (60/100) for Ti Grade 38-CW.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Ti Grade 38 Annealed and Ti Grade 38-CW 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.