Titanium Grade 17-ANN vs Grade 17 CR-Hard
Titanium · Grade 17 temper comparison
Grade 17-ANN and Grade 17 CR-Hard are two conditions of the same titanium grade, Grade 17: ANN (annealed) versus CR-Hard (cold rolled). The chemistry is identical, so every difference below comes from the condition. Grade 17 CR-Hard is the stronger of the two: yield strength 480 MPa (69.6 ksi) against 240 MPa (34.8 ksi) for Grade 17-ANN, about 100% more; tensile strength follows at 550 MPa (79.8 ksi) vs 330 MPa (47.9 ksi). In exchange, Grade 17-ANN is the more ductile: elongation 32% versus 8% for Grade 17 CR-Hard, and Grade 17 CR-Hard is harder (195 HB vs 120 HB). Grade 17-ANN runs hotter in service (315°C vs 250°C continuous). On the shop floor, Grade 17 CR-Hard machines more easily (50 vs 40 out of 100) and Grade 17-ANN welds better (excellent vs very good).
Grade 17-ANNChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
Grade 17 CR-HardChoose it when strength drives the design, or when the part is machined in volume.
Grade 17-ANN vs Grade 17 CR-Hard: 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.
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 B
Hardness, Vickers
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) 1,660°C3,020 °F · Liquidus Temperature 1,670°C3,038 °F
Thermal
How each material carries heat and how hot it can run.
Max Service Temperature (continuous)
Same in both: Thermal Conductivity 17.5 W/m·K10.1 BTU/hr·ft·°F · Specific Heat Capacity 523 J/kg·K0.12 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 8.6 µm/m·K4.8 µin/in·°F · Latent Heat of Fusion 419 J/g180 BTU/lb · Min Service Temperature -250°C-418 °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
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
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Same in both: Brazeability / Solderability 45 / 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 900 L/kg108 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.
Grade 17-ANN vs Grade 17 CR-Hard — frequently asked
Is Grade 17 CR-Hard stronger than Grade 17-ANN?
Yes. Grade 17 CR-Hard has a typical yield strength of 480 MPa (69.6 ksi) against 240 MPa (34.8 ksi) for Grade 17-ANN — about 100% more. Tensile strength is 550 MPa (79.8 ksi) vs 330 MPa (47.9 ksi).
Which condition does FabDigit quote by default, ANN or CR-Hard?
ANN is the default Grade 17 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 is easier to machine, Grade 17-ANN or Grade 17 CR-Hard?
Grade 17 CR-Hard, by a small margin. Both rate fair for machinability — 50/100 against 40/100 for Grade 17-ANN; for welding the order is Grade 17-ANN first (excellent, 88/100) then Grade 17 CR-Hard (very good, 75/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in Grade 17-ANN and Grade 17 CR-Hard 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.