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Magnesium Alloy AS41B vs EN-MC21110

Magnesium Alloy · grade comparison

Magnesium Alloy AS41B and EN-MC21110 are both magnesium alloy grades. AS41B is the stronger of the two: yield strength 140 MPa (20.3 ksi) against 110 MPa (16 ksi) for EN-MC21110, about 27% more; tensile strength follows at 215 MPa (31.2 ksi) vs 200 MPa (29 ksi). AS41B is the more ductile: elongation 6% versus 3% for EN-MC21110, and AS41B is harder (75 HB vs 65 HB). AS41B runs hotter in service (175°C vs 120°C continuous) and AS41B conducts electricity better (13.5 % IACS vs 12 % IACS). On the shop floor, EN-MC21110 welds better (good vs fair).

AS41BChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.

EN-MC21110Choose it when it will be welded.

AS41B vs EN-MC21110: properties

AS41BEN-MC21110

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

215 MPa31.2 ksi
200 MPa29 ksi

Yield Strength (0.2% offset)

140 MPa20.3 ksi
110 MPa16 ksi

Elongation at Break

6%
3%

Compressive Strength

140 MPa20.3 ksi
320 MPa46.4 ksi

Fatigue Strength (Endurance Limit)

70 MPa10.2 ksi
80 MPa11.6 ksi

Fracture Toughness (K_IC)

13 MPa·√m11.8 ksi·√in
12 MPa·√m10.9 ksi·√in

Charpy V-Notch Impact (RT)

3 J2.2 ft·lbf
2 J1.5 ft·lbf

Hardness, Brinell

75 HB
65 HB

Hardness, Vickers

—
70 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 · Shear Strength 140 MPa20.3 ksi

Physical

Density and transition temperatures.

Density

1.77 g/cm³0.06 lb/in³
1.81 g/cm³0.07 lb/in³

Melting Point (Solidus)

565°C1,049 °F
470°C878 °F

Liquidus Temperature

620°C1,148 °F
595°C1,103 °F

Thermal

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

Thermal Conductivity

68 W/m·K39.3 BTU/hr·ft·°F
72 W/m·K41.6 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

26.1 µm/m·K14.5 µin/in·°F
26 µm/m·K14.4 µin/in·°F

Latent Heat of Fusion

340 J/g146 BTU/lb
373 J/g160 BTU/lb

Max Service Temperature (continuous)

175°C347 °F
120°C248 °F

Min Service Temperature

-70°C-94 °F
-60°C-76 °F

Same in both: Specific Heat Capacity 1,020 J/kg·K0.24 BTU/lb·°F

Electrical

Conductivity and insulation.

Electrical Conductivity

13.5 % IACS
12 % IACS

Electrical Resistivity

1.27×10⁻⁷ Ω·m5 µΩ·in
1.4×10⁻⁷ Ω·m5.51 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-1.6 V
-1.55 V

Same in both: Corrosion Resistance 30 / 100

Manufacturability

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

Weldability

35 / 100
65 / 100

Formability (cold)

10 / 100
15 / 100

Castability

85 / 100
92 / 100

Brazeability / Solderability

15 / 100
25 / 100

Same in both: Machinability 95 / 100 · Machinability Rating (AISI 1212 = 100 %) 400% · Polishability 55 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

320 MJ/kg137,575 BTU/lb
300 MJ/kg128,977 BTU/lb

Same in both: Embodied Carbon (primary production) 32 kg CO₂/kg · Embodied Water 500 L/kg59.9 gal/lb · Typical Recycled Content 30%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

121 kN·m/kg
110 kN·m/kg

Specific Stiffness (E / density)

25.4 MN·m/kg
24.9 MN·m/kg

Modulus of Resilience

218 kJ/m³
134 kJ/m³

Thermal Diffusivity

37.7 mm²/s
39 mm²/s

Same in both: Thermal Shock Resistance Index 12

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 scaleAS41BEN-MC21110

Manufacturing and finishing

CapabilityAS41BEN-MC21110
CNC machiningYes—
Default conditionAs Cast—
Relative cost$$ Standard$$ Standard
Min. machined wall0.8 mm—
Best machined surfaceRa 0.8 µm—
Anodizing Type IIYes—
Chem Film (Alodine)Yes—
E-CoatingYes—
Hard Anodize Type III w/ PTFEYes—
Hard Anodizing Type IIIYes—
PaintingYes—
Powder CoatingYes—

AS41B vs EN-MC21110 — frequently asked

Is AS41B stronger than EN-MC21110?

Yes. AS41B has a typical yield strength of 140 MPa (20.3 ksi) against 110 MPa (16 ksi) for EN-MC21110 — about 27% more. Tensile strength is 215 MPa (31.2 ksi) vs 200 MPa (29 ksi).

Which is cheaper, AS41B or EN-MC21110?

Both sit in the same relative cost tier ($$, standard); the part price will be decided by machining time, tolerance and quantity rather than by the material.

Which welds better, AS41B or EN-MC21110?

EN-MC21110. Its weldability rates good (65/100) against fair (35/100) for AS41B.

Ready to make it?

Upload a CAD file and FabDigit prices the part in AS41B and EN-MC21110 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.