Aluminum 2030-T351 vs 2030-T851
Aluminum · 2030 temper comparison
2030-T351 and 2030-T851 are two conditions of the same aluminum grade, 2030: T351 (T3, stress relieved by stretching) versus T851 (T8, stress relieved by stretching). The chemistry is identical, so every difference below comes from the condition. 2030-T851 is the stronger of the two: yield strength 370 MPa (53.7 ksi) against 280 MPa (40.6 ksi) for 2030-T351, about 32% more; tensile strength follows at 425 MPa (61.6 ksi) vs 395 MPa (57.3 ksi). In exchange, 2030-T351 is the more ductile: elongation 12% versus 8% for 2030-T851, and 2030-T851 is harder (118 HB vs 100 HB). 2030-T851 runs hotter in service (150°C vs 100°C continuous) and 2030-T851 conducts heat better (150 W/m·K vs 132 W/m·K).
2030-T351Choose it when the part is bent, formed or impact-loaded.
2030-T851Choose it when strength drives the design, or when the part sees heat.
2030-T351 vs 2030-T851: 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)
Fracture Toughness (K_IC)
Hardness, Brinell
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 73 GPa10.6 Msi · Shear Modulus 27 GPa3.9 Msi · Bulk Modulus 71 GPa10.3 Msi · Poisson's Ratio 0.33
Physical
Density and transition temperatures.
Same in both: Density 2.82 g/cm³0.1 lb/in³ · Melting Point (Solidus) 510°C950 °F · Liquidus Temperature 640°C1,184 °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 870 J/kg·K0.21 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 23 µm/m·K12.8 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) -0.69 V
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Formability (cold)
Same in both: Weldability 12 / 100 · Brazeability / Solderability 10 / 100 · Polishability 55 / 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 1,200 L/kg144 gal/lb · Typical Recycled Content 10%
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.
2030-T351 vs 2030-T851 — frequently asked
Is 2030-T851 stronger than 2030-T351?
Yes. 2030-T851 has a typical yield strength of 370 MPa (53.7 ksi) against 280 MPa (40.6 ksi) for 2030-T351 — about 32% more. Tensile strength is 425 MPa (61.6 ksi) vs 395 MPa (57.3 ksi).
Which condition does FabDigit quote by default, T351 or T851?
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 2030-T351 over 2030-T851?
Pick 2030-T351 when the part is bent, formed or impact-loaded. Pick 2030-T851 when strength drives the design, or when the part sees heat.
Ready to make it?
Upload a CAD file and FabDigit prices the part in 2030-T351 and 2030-T851 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.