Titanium Grade C-9-HIP vs Grade C-9-SR
Titanium · Grade C-9 temper comparison
Grade C-9-HIP and Grade C-9-SR are two conditions of the same titanium grade, Grade C-9: HIP (hot isostatic pressed) versus SR (stress relieved). The chemistry is identical, so every difference below comes from the condition. Grade C-9-HIP is the stronger of the two: yield strength 560 MPa (81.2 ksi) against 530 MPa (76.9 ksi) for Grade C-9-SR, about 6% more. Grade C-9-HIP is the more ductile: elongation 12% versus 9% for Grade C-9-SR.
Grade C-9-HIPChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.
Grade C-9-HIP vs Grade C-9-SR: 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 C
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 100 GPa14.5 Msi · Shear Modulus 40 GPa5.8 Msi · Bulk Modulus 95 GPa13.8 Msi · Poisson's Ratio 0.32
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 1,700°C3,092 °F
Thermal
How each material carries heat and how hot it can run.
Same in both: Thermal Conductivity 7.6 W/m·K4.4 BTU/hr·ft·°F · Specific Heat Capacity 544 J/kg·K0.13 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 9.4 µm/m·K5.2 µin/in·°F · Latent Heat of Fusion 365 J/g157 BTU/lb · Max Service Temperature (continuous) 300°C572 °F · Min Service Temperature -250°C-418 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 1.4 % IACS · Electrical Resistivity 1.26×10⁻⁶ Ω·m49.6 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.1 V · Corrosion Resistance 90 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Formability (cold)
Same in both: Weldability 80 / 100 · Castability 60 / 100 · Brazeability / Solderability 40 / 100 · Polishability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 680 MJ/kg292,348 BTU/lb · Embodied Carbon (primary production) 45 kg CO₂/kg · Embodied Water 500 L/kg59.9 gal/lb · Typical Recycled Content 30%
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 C-9-HIP vs Grade C-9-SR — frequently asked
Is Grade C-9-HIP stronger than Grade C-9-SR?
Yes. Grade C-9-HIP has a typical yield strength of 560 MPa (81.2 ksi) against 530 MPa (76.9 ksi) for Grade C-9-SR — about 6% more. Tensile strength is 670 MPa (97.2 ksi) vs 640 MPa (92.8 ksi).
Which condition does FabDigit quote by default, HIP or SR?
ANNEAL is the default Grade C-9 condition in the FabDigit quote flow (neither HIP nor SR). 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 Grade C-9-HIP over Grade C-9-SR?
Pick Grade C-9-HIP when strength drives the design, or when the part is bent, formed or impact-loaded.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Grade C-9-HIP and Grade C-9-SR 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.