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Magnesium Alloy ZE41-T5 vs ZE41-T6

Magnesium Alloy · ZE41 temper comparison

ZE41-T5 and ZE41-T6 are two conditions of the same magnesium alloy grade, ZE41: T5 (cooled from hot working and artificially aged) versus T6 (solution heat treated and artificially aged). The chemistry is identical, so every difference below comes from the condition. ZE41-T6 is the stronger of the two: yield strength 150 MPa (21.8 ksi) against 140 MPa (20.3 ksi) for ZE41-T5, about 7% more. In exchange, ZE41-T5 is the more ductile: elongation 3.5% versus 3% for ZE41-T6, and ZE41-T6 is harder (66 HB vs 62 HB).

ZE41-T5Choose it when the part is bent, formed or impact-loaded.

ZE41-T6Choose it when strength drives the design.

ZE41-T5 vs ZE41-T6: properties

ZE41-T5ZE41-T6

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

205 MPa29.7 ksi
215 MPa31.2 ksi

Yield Strength (0.2% offset)

140 MPa20.3 ksi
150 MPa21.8 ksi

Elongation at Break

3.5%
3%

Compressive Strength

300 MPa43.5 ksi
315 MPa45.7 ksi

Shear Strength

160 MPa23.2 ksi
165 MPa23.9 ksi

Fatigue Strength (Endurance Limit)

69 MPa10 ksi
70 MPa10.2 ksi

Fracture Toughness (K_IC)

13 MPa·√m11.8 ksi·√in
12.5 MPa·√m11.4 ksi·√in

Charpy V-Notch Impact (RT)

3 J2 ft·lbf
2 J1.8 ft·lbf

Hardness, Brinell

62 HB
66 HB

Hardness, Vickers

65 HV
69 HV

Same in both: Elastic (Young's) Modulus 44 GPa6.4 Msi · Shear Modulus 16.5 GPa2.4 Msi · Bulk Modulus 45 GPa6.5 Msi · Poisson's Ratio 0.35

Physical

Density and transition temperatures.

Same in both: Density 1.84 g/cm³0.07 lb/in³ · Melting Point (Solidus) 510°C950 °F · Liquidus Temperature 645°C1,193 °F

Thermal

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

Thermal Conductivity

113 W/m·K65.3 BTU/hr·ft·°F
116 W/m·K67 BTU/hr·ft·°F

Same in both: Specific Heat Capacity 1,000 J/kg·K0.24 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 26.1 µm/m·K14.5 µin/in·°F · Latent Heat of Fusion 340 J/g146 BTU/lb · Max Service Temperature (continuous) 150°C302 °F · Min Service Temperature -70°C-94 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

25 % IACS
26 % IACS

Electrical Resistivity

6.8×10⁻⁸ Ω·m2.68 µΩ·in
6.6×10⁻⁸ Ω·m2.6 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Same in both: Galvanic Potential (seawater, vs SCE) -1.55 V · Corrosion Resistance 18 / 100

Manufacturability

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

Machinability

96 / 100
95 / 100

Machinability Rating (AISI 1212 = 100 %)

400%
380%

Weldability

70 / 100
62 / 100

Formability (cold)

10 / 100
8 / 100

Same in both: Castability 88 / 100 · Brazeability / Solderability 20 / 100 · Polishability 55 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 300 MJ/kg128,977 BTU/lb · Embodied Carbon (primary production) 26 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 scaleZE41

ZE41-T5 vs ZE41-T6 — frequently asked

Is ZE41-T6 stronger than ZE41-T5?

Yes. ZE41-T6 has a typical yield strength of 150 MPa (21.8 ksi) against 140 MPa (20.3 ksi) for ZE41-T5 — about 7% more. Tensile strength is 215 MPa (31.2 ksi) vs 205 MPa (29.7 ksi).

Which condition does FabDigit quote by default, T5 or T6?

T5 is the default ZE41 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, ZE41-T5 or ZE41-T6?

ZE41-T5. Its weldability rates very good (70/100) against good (62/100) for ZE41-T6.

Ready to make it?

Upload a CAD file and FabDigit prices the part in ZE41-T5 and ZE41-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.