Aluminum 1200-H112 vs 1200-O
Aluminum · 1200 temper comparison
1200-H112 and 1200-O are two conditions of the same aluminum grade, 1200: H112 (strain hardened from hot working only) versus O (annealed). The chemistry is identical, so every difference below comes from the condition. 1200-H112 is the stronger of the two: yield strength 40 MPa (5.8 ksi) against 32 MPa (4.64 ksi) for 1200-O, about 25% more. In exchange, 1200-O is the more ductile: elongation 40% versus 28% for 1200-H112. 1200-O runs hotter in service (200°C vs 150°C continuous).
1200-H112Choose it when strength drives the design.
1200-OChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
1200-H112 vs 1200-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.
Yield Strength (0.2% offset)
Elongation at Break
Shear Strength
Hardness, Brinell
Same in both: Elastic (Young's) Modulus 69 GPa10 Msi · Shear Modulus 26 GPa3.8 Msi · Bulk Modulus 70 GPa10.2 Msi · Poisson's Ratio 0.33 · Tensile Strength (Ultimate) 90 MPa13.1 ksi · Fatigue Strength (Endurance Limit) 34 MPa4.9 ksi
Physical
Density and transition temperatures.
Same in both: Density 2.71 g/cm³0.1 lb/in³ · Melting Point (Solidus) 645°C1,193 °F · Liquidus Temperature 657°C1,215 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Thermal Expansion (CTE, 20–100 °C)
Latent Heat of Fusion
Max Service Temperature (continuous)
Same in both: Specific Heat Capacity 900 J/kg·K0.21 BTU/lb·°F · Min Service Temperature -250°C-418 °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 72 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Formability (cold)
Polishability
Same in both: Weldability 92 / 100 · Castability 30 / 100 · Brazeability / Solderability 80 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Typical Recycled Content
Same in both: Embodied Water 1,200 L/kg144 gal/lb
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.
1200-H112 vs 1200-O — frequently asked
Is 1200-H112 stronger than 1200-O?
Yes. 1200-H112 has a typical yield strength of 40 MPa (5.8 ksi) against 32 MPa (4.64 ksi) for 1200-O — about 25% more. Tensile strength is 90 MPa (13.1 ksi) vs 90 MPa (13.1 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.
Which is easier to machine, 1200-H112 or 1200-O?
1200-H112, by a small margin. Both rate poor for machinability — 32/100 against 25/100 for 1200-O.
Ready to make it?
Upload a CAD file and FabDigit prices the part in 1200-H112 and 1200-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.