Copper Alloy C17510 vs QBe1.9
Copper Alloy · grade comparison
Copper Alloy C17510 and QBe1.9 are both copper alloy grades. QBe1.9 is the stronger of the two: yield strength 1,070 MPa (155 ksi) against 170 MPa (24.7 ksi) for C17510, about 6.3 times as much; tensile strength follows at 1,240 MPa (180 ksi) vs 310 MPa (45 ksi). In exchange, C17510 is the more ductile: elongation 25% versus 5% for QBe1.9, and QBe1.9 is harder (360 HB vs 70 HB). QBe1.9 is lighter (8.26 g/cm³ vs 8.75 g/cm³ for C17510). On the shop floor, QBe1.9 machines more easily (fair vs poor) and QBe1.9 sits in a lower cost tier (high, $$$$) than C17510 (specialty, $$$$$).
C17510Choose it when the part is bent, formed or impact-loaded.
QBe1.9Choose it when strength drives the design, or when weight is the constraint.
C17510 vs QBe1.9: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all copper alloy 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 copper alloy 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.
Elastic (Young's) Modulus
Shear Modulus
Bulk Modulus
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
Compressive Strength
Hardness, Rockwell C
Same in both: Poisson's Ratio 0.3
Physical
Density and transition temperatures.
Density
Melting Point (Solidus)
Liquidus Temperature
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Specific Heat Capacity
Thermal Expansion (CTE, 20–100 °C)
Latent Heat of Fusion
Same in both: Max Service Temperature (continuous) 200°C392 °F · Min Service Temperature -200°C-328 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Galvanic Potential (seawater, vs SCE)
Corrosion Resistance
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Castability
Brazeability / Solderability
Polishability
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Embodied Water
Same in both: Typical Recycled Content 25%
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Modulus of Resilience
Thermal Diffusivity
Thermal Shock Resistance Index
Strength versus weight
Yield strength against density for every copper alloy grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.
Manufacturing and finishing
| Capability | C17510 | QBe1.9 |
|---|---|---|
| CNC machining | Yes | — |
| Sheet metal | Yes | — |
| Default condition | A | — |
| Relative cost | $$$$$ Specialty | $$$$ High |
| Min. machined wall | 0.8 mm | — |
| Best machined surface | Ra 1.6 µm | — |
| Chrome Plating | Yes | — |
| Electropolishing | Yes | — |
| Nickel Plating | Yes | — |
| Painting | Yes | — |
| Tin Plating | Yes | — |
They share 4 finishes: Copper Plating, Electroless Nickel (EN), Gold Plating, Silver Plating.
C17510 vs QBe1.9 — frequently asked
Is QBe1.9 stronger than C17510?
Yes. QBe1.9 has a typical yield strength of 1,070 MPa (155 ksi) against 170 MPa (24.7 ksi) for C17510 — about 6.3 times as much. Tensile strength is 1,240 MPa (180 ksi) vs 310 MPa (45 ksi).
Which is cheaper, C17510 or QBe1.9?
QBe1.9 is the lower-cost material: it sits in the high tier ($$$$) while C17510 is specialty ($$$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.
Which is easier to machine, C17510 or QBe1.9?
QBe1.9. Its machinability rates fair (42/100) against poor (25/100) for C17510; for welding the order is C17510 first (good, 58/100) then QBe1.9 (fair, 50/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in C17510 and QBe1.9 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.