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Copper Alloy C63280-TF00 vs C63280-TQ50

Copper Alloy · C63280 temper comparison

C63280-TF00 and C63280-TQ50 are two conditions of the same copper alloy grade, C63280: TF00 (solution heat treated and precipitation hardened) versus TQ50 (quenched and tempered). The chemistry is identical, so every difference below comes from the condition. C63280-TF00 is the stronger of the two: yield strength 580 MPa (84.1 ksi) against 550 MPa (79.8 ksi) for C63280-TQ50, about 5% more. In exchange, C63280-TQ50 is the more ductile: elongation 12% versus 10% for C63280-TF00, and C63280-TF00 is harder (26 HRC vs 24 HRC).

C63280-TF00Choose it when strength drives the design.

C63280-TQ50Choose it when the part is bent, formed or impact-loaded.

C63280-TF00 vs C63280-TQ50: properties

C63280-TF00C63280-TQ50

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

855 MPa124 ksi
830 MPa120 ksi

Yield Strength (0.2% offset)

580 MPa84.1 ksi
550 MPa79.8 ksi

Elongation at Break

10%
12%

Compressive Strength

620 MPa89.9 ksi
860 MPa125 ksi

Shear Strength

500 MPa72.5 ksi
490 MPa71.1 ksi

Fatigue Strength (Endurance Limit)

280 MPa40.6 ksi
270 MPa39.2 ksi

Fracture Toughness (K_IC)

32 MPa·√m29.1 ksi·√in
35 MPa·√m31.9 ksi·√in

Charpy V-Notch Impact (RT)

18 J13.3 ft·lbf
22 J16.2 ft·lbf

Hardness, Brinell

260 HB
250 HB

Hardness, Rockwell B

100 HRB
102 HRB

Hardness, Rockwell C

26 HRC
24 HRC

Hardness, Vickers

275 HV
262 HV

Same in both: Elastic (Young's) Modulus 117 GPa17 Msi · Shear Modulus 44 GPa6.4 Msi · Bulk Modulus 110 GPa16 Msi · Poisson's Ratio 0.32 · Reduction in Area 18%

Physical

Density and transition temperatures.

Same in both: Density 7.58 g/cm³0.27 lb/in³ · Melting Point (Solidus) 1,040°C1,904 °F · Liquidus Temperature 1,060°C1,940 °F

Thermal

How each material carries heat and how hot it can run.

Same in both: Thermal Conductivity 36 W/m·K20.8 BTU/hr·ft·°F · Specific Heat Capacity 419 J/kg·K0.1 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 16.2 µm/m·K9 µin/in·°F · Latent Heat of Fusion 220 J/g94.6 BTU/lb · Max Service Temperature (continuous) 300°C572 °F · Min Service Temperature -200°C-328 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 6.5 % IACS · Electrical Resistivity 2.65×10⁻⁷ Ω·m10.4 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

80 / 100
82 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.25 V

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability Rating (AISI 1212 = 100 %)

16%
18%

Same in both: Machinability 25 / 100 · Weldability 60 / 100 · Formability (cold) 20 / 100 · Brazeability / Solderability 35 / 100 · Polishability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 65 MJ/kg27,945 BTU/lb · Embodied Carbon (primary production) 4.5 kg CO₂/kg · Embodied Water 350 L/kg41.9 gal/lb · Typical Recycled Content 30%

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.

501002005001,0007.588.599.5Density (g/cm³)Yield strength (MPa) — log scaleC63280

C63280-TF00 vs C63280-TQ50 — frequently asked

Is C63280-TF00 stronger than C63280-TQ50?

Yes. C63280-TF00 has a typical yield strength of 580 MPa (84.1 ksi) against 550 MPa (79.8 ksi) for C63280-TQ50 — about 5% more. Tensile strength is 855 MPa (124 ksi) vs 830 MPa (120 ksi).

Which condition does FabDigit quote by default, TF00 or TQ50?

M30 is the default C63280 condition in the FabDigit quote flow (neither TF00 nor TQ50). 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 C63280-TF00 over C63280-TQ50?

Pick C63280-TF00 when strength drives the design. Pick C63280-TQ50 when the part is bent, formed or impact-loaded.

Ready to make it?

Upload a CAD file and FabDigit prices the part in C63280-TF00 and C63280-TQ50 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.