Aluminum BAlSi-2 CLAD-O vs BAlSi-2-O
Aluminum · BAlSi-2 temper comparison
BAlSi-2 CLAD-O and BAlSi-2-O are two conditions of the same aluminum grade, BAlSi-2: CLAD-O (4343 cladding on 3003 brazing sheet, annealed composite) versus O (annealed). The chemistry is identical, so every difference below comes from the condition. BAlSi-2-O is the stronger of the two: yield strength 55 MPa (7.98 ksi) against 48 MPa (6.96 ksi) for BAlSi-2 CLAD-O, about 15% more; tensile strength follows at 130 MPa (18.9 ksi) vs 115 MPa (16.7 ksi). In exchange, BAlSi-2 CLAD-O is the more ductile: elongation 25% versus 20% for BAlSi-2-O, and BAlSi-2-O is harder (42 HB vs 32 HB). On the shop floor, BAlSi-2-O machines more easily (fair vs poor) and BAlSi-2 CLAD-O welds better (good vs fair).
BAlSi-2 CLAD-OChoose it when the part is bent, formed or impact-loaded, or when it will be welded.
BAlSi-2-OChoose it when strength drives the design, or when the part is machined in volume.
BAlSi-2 CLAD-O vs BAlSi-2-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.
Elastic (Young's) Modulus
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Vickers
Same in both: Shear Modulus 26 GPa3.8 Msi · Bulk Modulus 71 GPa10.3 Msi · Poisson's Ratio 0.33
Physical
Density and transition temperatures.
Same in both: Density 2.68 g/cm³0.1 lb/in³ · Melting Point (Solidus) 577°C1,071 °F · Liquidus Temperature 613°C1,135 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Same in both: Specific Heat Capacity 900 J/kg·K0.21 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 21.6 µm/m·K12 µin/in·°F · Latent Heat of Fusion 490 J/g211 BTU/lb · Max Service Temperature (continuous) 150°C302 °F · 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) -0.82 V
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 85 / 100 · Brazeability / Solderability 95 / 100 · Polishability 40 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 200 MJ/kg85,985 BTU/lb · Embodied Carbon (primary production) 12.5 kg CO₂/kg · Embodied Water 1,200 L/kg144 gal/lb · Typical Recycled Content 30%
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.
BAlSi-2 CLAD-O vs BAlSi-2-O — frequently asked
Is BAlSi-2-O stronger than BAlSi-2 CLAD-O?
Yes. BAlSi-2-O has a typical yield strength of 55 MPa (7.98 ksi) against 48 MPa (6.96 ksi) for BAlSi-2 CLAD-O — about 15% more. Tensile strength is 130 MPa (18.9 ksi) vs 115 MPa (16.7 ksi).
Which condition does FabDigit quote by default, CLAD-O or O?
AS-BRAZED is the default BAlSi-2 condition in the FabDigit quote flow (neither CLAD-O nor O). 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, BAlSi-2 CLAD-O or BAlSi-2-O?
BAlSi-2-O. Its machinability rates fair (40/100) against poor (30/100) for BAlSi-2 CLAD-O; for welding the order is BAlSi-2 CLAD-O first (good, 55/100) then BAlSi-2-O (fair, 45/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in BAlSi-2 CLAD-O and BAlSi-2-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.