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Aluminum 6005A vs 6101B

Aluminum · grade comparison

Aluminum 6005A and 6101B are both aluminum grades. 6005A is the stronger of the two: yield strength 235 MPa (34.1 ksi) against 165 MPa (23.9 ksi) for 6101B, about 42% more; tensile strength follows at 275 MPa (39.9 ksi) vs 205 MPa (29.7 ksi). 6005A is harder — 95 HB against 70 HB for 6101B — which matters for wear surfaces and threads. 6101B conducts heat better (220 W/m·K vs 190 W/m·K). On the shop floor, 6005A machines more easily (good vs fair), 6101B forms better (good vs fair), and 6005A sits in a lower cost tier (budget, $) than 6101B (standard, $$).

6005AChoose it when strength drives the design, or when surface hardness matters.

6005A vs 6101B: properties

6005A6101B

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

69.5 GPa10.1 Msi
69 GPa10 Msi

Bulk Modulus

69 GPa10 Msi
68 GPa9.9 Msi

Tensile Strength (Ultimate)

275 MPa39.9 ksi
205 MPa29.7 ksi

Yield Strength (0.2% offset)

235 MPa34.1 ksi
165 MPa23.9 ksi

Elongation at Break

11%
10%

Compressive Strength

235 MPa34.1 ksi
—

Shear Strength

180 MPa26.1 ksi
125 MPa18.1 ksi

Fatigue Strength (Endurance Limit)

90 MPa13.1 ksi
65 MPa9.4 ksi

Fracture Toughness (K_IC)

29 MPa·√m26.4 ksi·√in
—

Charpy V-Notch Impact (RT)

18 J13.3 ft·lbf
—

Hardness, Brinell

95 HB
70 HB

Hardness, Vickers

100 HV
75 HV

Same in both: Shear Modulus 26 GPa3.8 Msi · Poisson's Ratio 0.33

Physical

Density and transition temperatures.

Melting Point (Solidus)

607°C1,125 °F
615°C1,139 °F

Liquidus Temperature

654°C1,209 °F
652°C1,206 °F

Same in both: Density 2.7 g/cm³0.1 lb/in³

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

190 W/m·K110 BTU/hr·ft·°F
220 W/m·K127 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

23 µm/m·K12.8 µin/in·°F
23.5 µm/m·K13.1 µin/in·°F

Latent Heat of Fusion

393 J/g169 BTU/lb
395 J/g170 BTU/lb

Same in both: Specific Heat Capacity 897 J/kg·K0.21 BTU/lb·°F · Max Service Temperature (continuous) 150°C302 °F · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

49 % IACS
57 % IACS

Electrical Resistivity

3.5×10⁻⁸ Ω·m1.38 µΩ·in
3.03×10⁻⁸ Ω·m1.19 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

68 / 100
70 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.78 V

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

62 / 100
50 / 100

Machinability Rating (AISI 1212 = 100 %)

190%
150%

Formability (cold)

40 / 100
55 / 100

Castability

25 / 100
—

Brazeability / Solderability

45 / 100
70 / 100

Same in both: Weldability 85 / 100 · Polishability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Carbon (primary production)

12.5 kg CO₂/kg
12 kg CO₂/kg

Embodied Water

1,200 L/kg144 gal/lb
1,100 L/kg132 gal/lb

Typical Recycled Content

30%
20%

Same in both: Embodied Energy (primary production) 200 MJ/kg85,985 BTU/lb

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

102 kN·m/kg
76 kN·m/kg

Specific Stiffness (E / density)

25.7 MN·m/kg
25.6 MN·m/kg

Modulus of Resilience

397 kJ/m³
197 kJ/m³

Thermal Diffusivity

78.5 mm²/s
90.8 mm²/s

Thermal Shock Resistance Index

33
28

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.

20501002005002.22.42.62.83Density (g/cm³)Yield strength (MPa) — log scale6005A6101B

Manufacturing and finishing

Capability6005A6101B
CNC machiningYes—
Sheet metalYes—
Default condition——
Relative cost$ Budget$$ Standard
Min. machined wall0.5 mm—
Best machined surfaceRa 0.8 µm—
Anodizing Type IIYes—
CerakoteYes—
Chem Film (Alodine)Yes—
DLCYes—
E-CoatingYes—
ElectropolishingYes—
Hard Anodize Type III w/ PTFEYes—
Hard Anodizing Type IIIYes—
Nickel PlatingYes—
PTFE CoatingYes—
PaintingYes—
Powder CoatingYes—

They share 4 finishes: Electroless Nickel (EN), Epoxy Coating, Gold Plating, Silver Plating.

6005A vs 6101B — frequently asked

Is 6005A stronger than 6101B?

Yes. 6005A has a typical yield strength of 235 MPa (34.1 ksi) against 165 MPa (23.9 ksi) for 6101B — about 42% more. Tensile strength is 275 MPa (39.9 ksi) vs 205 MPa (29.7 ksi).

Which is cheaper, 6005A or 6101B?

6005A is the lower-cost material: it sits in the budget tier ($) while 6101B is standard ($$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.

Which is easier to machine, 6005A or 6101B?

6005A. Its machinability rates good (62/100) against fair (50/100) for 6101B.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 6005A and 6101B 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.