FabDigit

ER4045 vs 1100 and 2 more: properties

ER4045110023195183

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

71 GPa10.3 Msi
69 GPa10 Msi
73 GPa10.6 Msi
71 GPa10.3 Msi

Shear Modulus

26.5 GPa3.8 Msi
26 GPa3.8 Msi
27 GPa3.9 Msi
26.4 GPa3.8 Msi

Bulk Modulus

75 GPa10.9 Msi
76 GPa11 Msi
75 GPa10.9 Msi
70 GPa10.2 Msi

Tensile Strength (Ultimate)

165 MPa23.9 ksi
125 MPa18.1 ksi
200 MPa29 ksi
300 MPa43.5 ksi

Yield Strength (0.2% offset)

60 MPa8.7 ksi
115 MPa16.7 ksi
110 MPa16 ksi
145 MPa21 ksi

Elongation at Break

12%
12%
16%
20%

Reduction in Area

15%

Shear Strength

110 MPa16 ksi
75 MPa10.9 ksi
130 MPa18.9 ksi
175 MPa25.4 ksi

Fatigue Strength (Endurance Limit)

55 MPa8 ksi
48 MPa7 ksi
70 MPa10.2 ksi
145 MPa21 ksi

Fracture Toughness (K_IC)

18 MPa·√m16.4 ksi·√in
32 MPa·√m29.1 ksi·√in
28 MPa·√m25.5 ksi·√in

Charpy V-Notch Impact (RT)

5 J3.7 ft·lbf

Hardness, Brinell

45 HB
32 HB
60 HB
80 HB

Hardness, Rockwell B

12 HRB

Hardness, Vickers

48 HV
35 HV

Same in both: Poisson's Ratio 0.33

Physical

Density and transition temperatures.

Density

2.67 g/cm³0.1 lb/in³
2.71 g/cm³0.1 lb/in³
2.84 g/cm³0.1 lb/in³
2.66 g/cm³0.1 lb/in³

Melting Point (Solidus)

577°C1,071 °F
643°C1,189 °F
543°C1,009 °F
574°C1,065 °F

Liquidus Temperature

591°C1,096 °F
657°C1,215 °F
643°C1,189 °F
638°C1,180 °F

Thermal

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

Thermal Conductivity

165 W/m·K95.3 BTU/hr·ft·°F
222 W/m·K128 BTU/hr·ft·°F
170 W/m·K98.2 BTU/hr·ft·°F
117 W/m·K67.6 BTU/hr·ft·°F

Specific Heat Capacity

880 J/kg·K0.21 BTU/lb·°F
904 J/kg·K0.22 BTU/lb·°F
864 J/kg·K0.21 BTU/lb·°F
900 J/kg·K0.21 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

21.3 µm/m·K11.8 µin/in·°F
23.6 µm/m·K13.1 µin/in·°F
22.3 µm/m·K12.4 µin/in·°F
23.4 µm/m·K13 µin/in·°F

Latent Heat of Fusion

490 J/g211 BTU/lb
397 J/g171 BTU/lb
385 J/g166 BTU/lb
397 J/g171 BTU/lb

Max Service Temperature (continuous)

150°C302 °F
120°C248 °F
175°C347 °F
65°C149 °F

Min Service Temperature

-196°C-321 °F
-273°C-459 °F
-253°C-423 °F
-270°C-454 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

41 % IACS
57 % IACS
44 % IACS
29 % IACS

Electrical Resistivity

4.2×10⁻⁸ Ω·m1.65 µΩ·in
3.02×10⁻⁸ Ω·m1.19 µΩ·in
3.9×10⁻⁸ Ω·m1.54 µΩ·in
5.9×10⁻⁸ Ω·m2.32 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.8 V
-0.83 V
-0.64 V
-0.87 V

Corrosion Resistance

58 / 100
78 / 100
32 / 100
75 / 100

Manufacturability

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

Machinability

42 / 100
38 / 100
62 / 100
50 / 100

Machinability Rating (AISI 1212 = 100 %)

70%
30%
55%
45%

Weldability

92 / 100
95 / 100
92 / 100
95 / 100

Formability (cold)

55 / 100
85 / 100
55 / 100
70 / 100

Castability

88 / 100
30 / 100
60 / 100
25 / 100

Brazeability / Solderability

96 / 100
92 / 100
20 / 100
15 / 100

Polishability

38 / 100
80 / 100
55 / 100
60 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

200 MJ/kg85,985 BTU/lb
210 MJ/kg90,284 BTU/lb
205 MJ/kg88,134 BTU/lb
200 MJ/kg85,985 BTU/lb

Embodied Carbon (primary production)

12 kg CO₂/kg
12.5 kg CO₂/kg
12.5 kg CO₂/kg
12.5 kg CO₂/kg

Embodied Water

1,100 L/kg132 gal/lb
1,200 L/kg144 gal/lb
1,150 L/kg138 gal/lb
1,200 L/kg144 gal/lb

Typical Recycled Content

25%
25%
10%
30%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

62 kN·m/kg
46 kN·m/kg
70 kN·m/kg
113 kN·m/kg

Specific Stiffness (E / density)

26.6 MN·m/kg
25.5 MN·m/kg
25.7 MN·m/kg
26.7 MN·m/kg

Modulus of Resilience

25 kJ/m³
96 kJ/m³
83 kJ/m³
148 kJ/m³

Thermal Diffusivity

70.2 mm²/s
90.6 mm²/s
69.3 mm²/s
48.9 mm²/s

Thermal Shock Resistance Index

18
17
21
21

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 scale110023195183ER4045

Manufacturing and finishing

CapabilityER4045110023195183
CNC machiningYesYesYes
Sheet metalYesYesYes
Default condition
Relative cost$$$ Premium$ Budget$$$ Premium$$ Standard
Min. machined wall0.5 mm0.5 mm0.5 mm
Best machined surfaceRa 0.8 µmRa 0.8 µmRa 0.8 µm
Anodizing Type IIYesYesYes
CerakoteYesYesYes
Chem Film (Alodine)YesYesYes
DLCYesYesYes
E-CoatingYesYesYes
ElectropolishingYesYesYes
Hard Anodize Type III w/ PTFEYesYesYes
Hard Anodizing Type IIIYesYesYes
Nickel PlatingYesYesYes
PTFE CoatingYesYesYes
PaintingYesYesYes
Powder CoatingYesYesYes

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

Ready to make it?

Upload a CAD file and FabDigit prices the part in ER4045 and 1100 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.