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Copper Alloy C63280-M30 vs C63280-TF00

Copper Alloy · C63280 temper comparison

C63280-M30 and C63280-TF00 are two conditions of the same copper alloy grade, C63280: M30 (as hot extruded) versus TF00 (solution heat treated and precipitation hardened). 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 470 MPa (68.2 ksi) for C63280-M30, about 23% more; tensile strength follows at 855 MPa (124 ksi) vs 790 MPa (115 ksi). In exchange, C63280-M30 is the more ductile: elongation 15% versus 10% for C63280-TF00, and C63280-TF00 is harder (260 HB vs 225 HB). On the shop floor, C63280-M30 welds better (very good vs good).

C63280-M30Choose it when the part is bent, formed or impact-loaded, or when it will be welded.

C63280-TF00Choose it when strength drives the design.

C63280-M30 vs C63280-TF00: properties

C63280-M30C63280-TF00

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

790 MPa115 ksi
855 MPa124 ksi

Yield Strength (0.2% offset)

470 MPa68.2 ksi
580 MPa84.1 ksi

Elongation at Break

15%
10%

Reduction in Area

25%
18%

Compressive Strength

500 MPa72.5 ksi
620 MPa89.9 ksi

Shear Strength

460 MPa66.7 ksi
500 MPa72.5 ksi

Fatigue Strength (Endurance Limit)

250 MPa36.3 ksi
280 MPa40.6 ksi

Fracture Toughness (K_IC)

40 MPa·√m36.4 ksi·√in
32 MPa·√m29.1 ksi·√in

Charpy V-Notch Impact (RT)

25 J18.4 ft·lbf
18 J13.3 ft·lbf

Hardness, Brinell

225 HB
260 HB

Hardness, Rockwell B

98 HRB
100 HRB

Hardness, Rockwell C

21 HRC
26 HRC

Hardness, Vickers

235 HV
275 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

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.

Thermal Conductivity

38 W/m·K22 BTU/hr·ft·°F
36 W/m·K20.8 BTU/hr·ft·°F

Same in both: 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.

Electrical Conductivity

7 % IACS
6.5 % IACS

Electrical Resistivity

2.46×10⁻⁷ Ω·m9.69 µΩ·in
2.65×10⁻⁷ Ω·m10.4 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

82 / 100
80 / 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

30 / 100
25 / 100

Machinability Rating (AISI 1212 = 100 %)

20%
16%

Weldability

70 / 100
60 / 100

Formability (cold)

30 / 100
20 / 100

Same in both: 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-M30 vs C63280-TF00 — frequently asked

Is C63280-TF00 stronger than C63280-M30?

Yes. C63280-TF00 has a typical yield strength of 580 MPa (84.1 ksi) against 470 MPa (68.2 ksi) for C63280-M30 — about 23% more. Tensile strength is 855 MPa (124 ksi) vs 790 MPa (115 ksi).

Which condition does FabDigit quote by default, M30 or TF00?

M30 is the default C63280 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, C63280-M30 or C63280-TF00?

C63280-M30, by a small margin. Both rate poor for machinability — 30/100 against 25/100 for C63280-TF00; for welding the order is C63280-M30 first (very good, 70/100) then C63280-TF00 (good, 60/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in C63280-M30 and C63280-TF00 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.