Aluminum EN AC-21000 vs EN AC-45200
Aluminum · grade comparison
Aluminum EN AC-21000 and EN AC-45200 are both aluminum grades. EN AC-21000 is the stronger of the two: yield strength 210 MPa (30.5 ksi) against 80 MPa (11.6 ksi) for EN AC-45200, about 163% more; tensile strength follows at 320 MPa (46.4 ksi) vs 160 MPa (23.2 ksi). EN AC-21000 is the more ductile: elongation 7% versus 1% for EN AC-45200, and EN AC-21000 is harder (92 HB vs 60 HB). EN AC-45200 is stiffer (75 GPa vs 71 GPa) and EN AC-45200 conducts heat better (125 W/m·K vs 112 W/m·K). On the shop floor, EN AC-21000 machines more easily (very good vs good) and EN AC-45200 sits in a lower cost tier (standard, $$) than EN AC-21000 (premium, $$$).
EN AC-21000Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.
EN AC-45200Choose it when cost is the deciding factor.
EN AC-21000 vs EN AC-45200: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all aluminum grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
How to read these bars
- One bar per material. A full bar is the highest value among all aluminum grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Shear Modulus
Bulk Modulus
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Hardness, Brinell
Reduction in Area
Charpy V-Notch Impact (RT)
Hardness, Rockwell B
Hardness, Vickers
Same in both: Poisson's Ratio 0.33
Physical
Density and transition temperatures.
Density
Melting Point (Solidus)
Liquidus Temperature
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Specific Heat Capacity
Thermal Expansion (CTE, 20–100 °C)
Latent Heat of Fusion
Min Service Temperature
Same in both: Max Service Temperature (continuous) 150°C302 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Galvanic Potential (seawater, vs SCE)
Corrosion Resistance
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Castability
Polishability
Same in both: Brazeability / Solderability 20 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Embodied Water
Typical Recycled Content
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Modulus of Resilience
Thermal Diffusivity
Thermal Shock Resistance Index
Strength versus weight
Yield strength against density for every aluminum grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.
Manufacturing and finishing
| Capability | EN AC-21000 | EN AC-45200 |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$ Premium | $$ Standard |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Both take the same 4 finishes: Electroless Nickel (EN), Epoxy Coating, Gold Plating, Silver Plating.
EN AC-21000 vs EN AC-45200 — frequently asked
Is EN AC-21000 stronger than EN AC-45200?
Yes. EN AC-21000 has a typical yield strength of 210 MPa (30.5 ksi) against 80 MPa (11.6 ksi) for EN AC-45200 — about 163% more. Tensile strength is 320 MPa (46.4 ksi) vs 160 MPa (23.2 ksi).
Which is cheaper, EN AC-21000 or EN AC-45200?
EN AC-45200 is the lower-cost material: it sits in the standard tier ($$) while EN AC-21000 is premium ($$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.
Which is easier to machine, EN AC-21000 or EN AC-45200?
EN AC-21000. Its machinability rates very good (78/100) against good (65/100) for EN AC-45200; for welding the order is EN AC-45200 first (poor, 30/100) then EN AC-21000 (poor, 25/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in EN AC-21000 and EN AC-45200 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.