Aluminum 3003-H112 vs 3003-O
Aluminum · 3003 temper comparison
3003-H112 and 3003-O are two conditions of the same aluminum grade, 3003: H112 (strain hardened from hot working only) versus O (annealed). The chemistry is identical, so every difference below comes from the condition. 3003-H112 is the stronger of the two: yield strength 55 MPa (7.98 ksi) against 42 MPa (6.09 ksi) for 3003-O, about 31% more; tensile strength follows at 120 MPa (17.4 ksi) vs 110 MPa (16 ksi). In exchange, 3003-O is the more ductile: elongation 35% versus 25% for 3003-H112, and 3003-H112 is harder (30 HB vs 28 HB). 3003-O runs hotter in service (200°C vs 150°C continuous) and 3003-O conducts electricity better (50 % IACS vs 45 % IACS).
3003-H112Choose it when strength drives the design.
3003-OChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
3003-H112 vs 3003-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
Hardness, Brinell
Same in both: Elastic (Young's) Modulus 68.9 GPa10 Msi · Shear Modulus 25 GPa3.6 Msi · Bulk Modulus 69 GPa10 Msi · Poisson's Ratio 0.33 · Fatigue Strength (Endurance Limit) 48 MPa7 ksi
Physical
Density and transition temperatures.
Same in both: Density 2.73 g/cm³0.1 lb/in³ · Melting Point (Solidus) 643°C1,189 °F · Liquidus Temperature 654°C1,209 °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 893 J/kg·K0.21 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 23.2 µm/m·K12.9 µin/in·°F · Latent Heat of Fusion 390 J/g168 BTU/lb · Min Service Temperature -196°C-321 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) -0.83 V
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Formability (cold)
Same in both: Machinability 35 / 100 · Weldability 92 / 100 · Brazeability / Solderability 90 / 100 · Polishability 45 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 205 MJ/kg88,134 BTU/lb · Embodied Carbon (primary production) 12.5 kg CO₂/kg · Embodied Water 1,100 L/kg132 gal/lb · Typical Recycled Content 35%
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.
3003-H112 vs 3003-O — frequently asked
Is 3003-H112 stronger than 3003-O?
Yes. 3003-H112 has a typical yield strength of 55 MPa (7.98 ksi) against 42 MPa (6.09 ksi) for 3003-O — about 31% more. Tensile strength is 120 MPa (17.4 ksi) vs 110 MPa (16 ksi).
Which condition does FabDigit quote by default, H112 or O?
Specify the condition in the material field or the drawing note; FabDigit prices the quote for the state you call out.
When should I choose 3003-H112 over 3003-O?
Pick 3003-H112 when strength drives the design. Pick 3003-O when the part is bent, formed or impact-loaded, or when the part sees heat.
Ready to make it?
Upload a CAD file and FabDigit prices the part in 3003-H112 and 3003-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.