Aluminum 3003-H19 vs 3003-O
Aluminum · 3003 temper comparison
3003-H19 and 3003-O are two conditions of the same aluminum grade, 3003: H19 (strain hardened, extra hard) versus O (annealed). The chemistry is identical, so every difference below comes from the condition. 3003-H19 is the stronger of the two: yield strength 200 MPa (29 ksi) against 42 MPa (6.09 ksi) for 3003-O, about 4.8 times as much; tensile strength follows at 215 MPa (31.2 ksi) vs 110 MPa (16 ksi). In exchange, 3003-O is the more ductile: elongation 35% versus 3% for 3003-H19, and 3003-H19 is harder (58 HB vs 28 HB). 3003-O runs hotter in service (200°C vs 100°C continuous) and 3003-O conducts heat better (193 W/m·K vs 155 W/m·K). On the shop floor, 3003-H19 machines more easily (50 vs 35 out of 100) and 3003-O welds better (excellent vs very good).
3003-H19Choose it when strength drives the design, or when the part is machined in volume.
3003-OChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
3003-H19 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
Fatigue Strength (Endurance Limit)
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
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).
Same in both: Galvanic Potential (seawater, vs SCE) -0.83 V · Corrosion Resistance 68 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Weldability
Formability (cold)
Same in both: 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-H19 vs 3003-O — frequently asked
Is 3003-H19 stronger than 3003-O?
Yes. 3003-H19 has a typical yield strength of 200 MPa (29 ksi) against 42 MPa (6.09 ksi) for 3003-O — about 4.8 times as much. Tensile strength is 215 MPa (31.2 ksi) vs 110 MPa (16 ksi).
Which condition does FabDigit quote by default, H19 or O?
Specify the condition in the material field or the drawing note; FabDigit prices the quote for the state you call out.
Which is easier to machine, 3003-H19 or 3003-O?
3003-H19, by a small margin. Both rate fair for machinability — 50/100 against 35/100 for 3003-O; for welding the order is 3003-O first (excellent, 92/100) then 3003-H19 (very good, 70/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in 3003-H19 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.