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Magnesium Alloy ZC63A-F vs ZC63A-T6

Magnesium Alloy · ZC63A temper comparison

ZC63A-F and ZC63A-T6 are two conditions of the same magnesium alloy grade, ZC63A: F (as fabricated) versus T6 (solution heat treated and artificially aged). The chemistry is identical, so every difference below comes from the condition. ZC63A-T6 is the stronger of the two: yield strength 145 MPa (21 ksi) against 110 MPa (16 ksi) for ZC63A-F, about 32% more; tensile strength follows at 210 MPa (30.5 ksi) vs 175 MPa (25.4 ksi). ZC63A-T6 is the more ductile: elongation 5% versus 3% for ZC63A-F, and ZC63A-T6 is harder (60 HB vs 52 HB). ZC63A-T6 runs hotter in service (150°C vs 130°C continuous).

ZC63A-T6Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.

ZC63A-F vs ZC63A-T6: properties

ZC63A-FZC63A-T6

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

175 MPa25.4 ksi
210 MPa30.5 ksi

Yield Strength (0.2% offset)

110 MPa16 ksi
145 MPa21 ksi

Elongation at Break

3%
5%

Reduction in Area

4%
6%

Compressive Strength

100 MPa14.5 ksi
130 MPa18.9 ksi

Shear Strength

120 MPa17.4 ksi
140 MPa20.3 ksi

Fatigue Strength (Endurance Limit)

70 MPa10.2 ksi
80 MPa11.6 ksi

Fracture Toughness (K_IC)

11 MPa·√m10 ksi·√in
13 MPa·√m11.8 ksi·√in

Charpy V-Notch Impact (RT)

2 J1.5 ft·lbf
3 J2.2 ft·lbf

Hardness, Brinell

52 HB
60 HB

Hardness, Vickers

55 HV
63 HV

Same in both: Elastic (Young's) Modulus 45 GPa6.5 Msi · Shear Modulus 17 GPa2.5 Msi · Bulk Modulus 45 GPa6.5 Msi · Poisson's Ratio 0.35

Physical

Density and transition temperatures.

Same in both: Density 1.87 g/cm³0.07 lb/in³ · Melting Point (Solidus) 465°C869 °F · Liquidus Temperature 635°C1,175 °F

Thermal

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

Max Service Temperature (continuous)

130°C266 °F
150°C302 °F

Same in both: Thermal Conductivity 122 W/m·K70.5 BTU/hr·ft·°F · Specific Heat Capacity 1,000 J/kg·K0.24 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 27 µm/m·K15 µin/in·°F · Latent Heat of Fusion 340 J/g146 BTU/lb · Min Service Temperature -100°C-148 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 24 % IACS · Electrical Resistivity 7.2×10⁻⁸ Ω·m2.83 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

16 / 100
18 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -1.55 V

Manufacturability

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

Weldability

45 / 100
40 / 100

Formability (cold)

8 / 100
10 / 100

Same in both: Machinability 95 / 100 · Machinability Rating (AISI 1212 = 100 %) 500% · Castability 80 / 100 · Brazeability / Solderability 20 / 100 · Polishability 50 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 330 MJ/kg141,875 BTU/lb · Embodied Carbon (primary production) 33 kg CO₂/kg · Embodied Water 500 L/kg59.9 gal/lb · Typical Recycled Content 25%

Strength versus weight

Yield strength against density for every magnesium alloy grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.

701001502001.41.51.61.71.8Density (g/cm³)Yield strength (MPa) — log scaleZC63A

ZC63A-F vs ZC63A-T6 — frequently asked

Is ZC63A-T6 stronger than ZC63A-F?

Yes. ZC63A-T6 has a typical yield strength of 145 MPa (21 ksi) against 110 MPa (16 ksi) for ZC63A-F — about 32% more. Tensile strength is 210 MPa (30.5 ksi) vs 175 MPa (25.4 ksi).

Which condition does FabDigit quote by default, F or T6?

T6 is the default ZC63A 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 welds better, ZC63A-F or ZC63A-T6?

ZC63A-F. Its weldability rates fair (45/100) against fair (40/100) for ZC63A-T6.

Ready to make it?

Upload a CAD file and FabDigit prices the part in ZC63A-F and ZC63A-T6 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.