Aluminum 6B02-H112 vs 6B02-T651
Aluminum · 6B02 temper comparison
6B02-H112 and 6B02-T651 are two conditions of the same aluminum grade, 6B02: H112 (strain hardened from hot working only) versus T651 (T6, stress relieved by stretching). The chemistry is identical, so every difference below comes from the condition. 6B02-T651 is the stronger of the two: yield strength 240 MPa (34.8 ksi) against 95 MPa (13.8 ksi) for 6B02-H112, about 153% more; tensile strength follows at 270 MPa (39.2 ksi) vs 165 MPa (23.9 ksi). In exchange, 6B02-H112 is the more ductile: elongation 16% versus 11% for 6B02-T651, and 6B02-T651 is harder (95 HB vs 52 HB). 6B02-H112 runs hotter in service (200°C vs 150°C continuous) and 6B02-H112 conducts heat better (190 W/m·K vs 170 W/m·K). On the shop floor, 6B02-T651 machines more easily (good vs fair).
6B02-H112Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.
6B02-T651Choose it when strength drives the design, or when the part is machined in volume.
6B02-H112 vs 6B02-T651: 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
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
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
Physical
Density and transition temperatures.
Same in both: Density 2.7 g/cm³0.1 lb/in³ · Melting Point (Solidus) 585°C1,085 °F · Liquidus Temperature 650°C1,202 °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 896 J/kg·K0.21 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 23.4 µm/m·K13 µin/in·°F · Latent Heat of Fusion 395 J/g170 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) -0.75 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 25 / 100 · Brazeability / Solderability 55 / 100 · Polishability 70 / 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 1,100 L/kg132 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.
6B02-H112 vs 6B02-T651 — frequently asked
Is 6B02-T651 stronger than 6B02-H112?
Yes. 6B02-T651 has a typical yield strength of 240 MPa (34.8 ksi) against 95 MPa (13.8 ksi) for 6B02-H112 — about 153% more. Tensile strength is 270 MPa (39.2 ksi) vs 165 MPa (23.9 ksi).
Which condition does FabDigit quote by default, H112 or T651?
T6 is the default 6B02 condition in the FabDigit quote flow (neither H112 nor T651). 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, 6B02-H112 or 6B02-T651?
6B02-T651. Its machinability rates good (60/100) against fair (42/100) for 6B02-H112; for welding the order is 6B02-H112 first (very good, 80/100) then 6B02-T651 (very good, 75/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in 6B02-H112 and 6B02-T651 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.