Aluminum 4004-H14 vs 4004-O
Aluminum · 4004 temper comparison
4004-H14 and 4004-O are two conditions of the same aluminum grade, 4004: H14 (strain hardened, half hard) versus O (annealed). The chemistry is identical, so every difference below comes from the condition. 4004-H14 is the stronger of the two: yield strength 195 MPa (28.3 ksi) against 90 MPa (13.1 ksi) for 4004-O, about 117% more; tensile strength follows at 250 MPa (36.3 ksi) vs 200 MPa (29 ksi). In exchange, 4004-O is the more ductile: elongation 10% versus 5% for 4004-H14, and 4004-H14 is harder (80 HB vs 60 HB).
4004-H14Choose it when strength drives the design.
4004-OChoose it when the part is bent, formed or impact-loaded.
4004-H14 vs 4004-O: 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.
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Shear Strength
Fatigue Strength (Endurance Limit)
Hardness, Brinell
Same in both: Elastic (Young's) Modulus 71 GPa10.3 Msi · Shear Modulus 26.5 GPa3.8 Msi · Bulk Modulus 70 GPa10.2 Msi · Poisson's Ratio 0.33
Physical
Density and transition temperatures.
Same in both: Density 2.66 g/cm³0.1 lb/in³ · Melting Point (Solidus) 559°C1,038 °F · Liquidus Temperature 596°C1,105 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Max Service Temperature (continuous)
Same in both: Specific Heat Capacity 880 J/kg·K0.21 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 20.5 µm/m·K11.4 µin/in·°F · Latent Heat of Fusion 460 J/g198 BTU/lb · Min Service Temperature -196°C-321 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Same in both: Electrical Resistivity 4.66×10⁻⁸ Ω·m1.83 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.82 V · Corrosion Resistance 55 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Same in both: Castability 80 / 100 · Brazeability / Solderability 97 / 100 · Polishability 35 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 200 MJ/kg85,985 BTU/lb · Embodied Carbon (primary production) 12 kg CO₂/kg · Embodied Water 1,150 L/kg138 gal/lb · Typical Recycled Content 25%
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.
4004-H14 vs 4004-O — frequently asked
Is 4004-H14 stronger than 4004-O?
Yes. 4004-H14 has a typical yield strength of 195 MPa (28.3 ksi) against 90 MPa (13.1 ksi) for 4004-O — about 117% more. Tensile strength is 250 MPa (36.3 ksi) vs 200 MPa (29 ksi).
Which condition does FabDigit quote by default, H14 or O?
O is the default 4004 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, 4004-H14 or 4004-O?
4004-H14. Its machinability rates fair (38/100) against poor (30/100) for 4004-O; for welding the order is 4004-O first (good, 55/100) then 4004-H14 (fair, 50/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in 4004-H14 and 4004-O 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.