FabDigitFabDigit

Durus vs VeroGray

Polymer · grade comparison

Durus and VeroGray are both polymer grades. VeroGray is the stronger of the two: tensile strength 57 MPa (8.27 ksi) against 25 MPa (3.63 ksi) for Durus, about 128% more. In exchange, Durus is the more ductile: elongation 45% versus 17% for VeroGray, and VeroGray is harder (84 Shore D vs 68 Shore D). VeroGray is stiffer (2.5 GPa vs 1.1 GPa). On the shop floor, VeroGray machines more easily (good vs fair).

DurusChoose it when the part is bent, formed or impact-loaded.

VeroGrayChoose it when strength drives the design, or when the part is machined in volume.

Durus vs VeroGray: properties

DurusVeroGray

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

1.1 GPa0.16 Msi
2.5 GPa0.36 Msi

Poisson's Ratio

0.4
0.35

Tensile Strength (Ultimate)

25 MPa3.6 ksi
57 MPa8.3 ksi

Yield Strength (0.2% offset)

22 MPa3.2 ksi
—

Elongation at Break

45%
17%

Flexural Strength

32 MPa4.6 ksi
90 MPa13.1 ksi

Flexural Modulus

1.1 GPa0.16 Msi
2.7 GPa0.39 Msi

Izod Impact, Notched

50 J/m0.94 ft·lbf/in
25 J/m0.47 ft·lbf/in

Hardness, Shore D

68 Shore D
84 Shore D

Hardness, Rockwell R

95 HRR
—

Hardness, Rockwell M

—
74 HRM

Physical

Density and transition temperatures.

Density

1.17 g/cm³0.04 lb/in³
1.18 g/cm³0.04 lb/in³

Glass Transition (Tg)

43°C109 °F
53°C127 °F

Water Absorption (24 h)

1.8%
1.3%

Thermal

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

Thermal Expansion (CTE, 20–100 °C)

110 µm/m·K61.1 µin/in·°F
80 µm/m·K44.4 µin/in·°F

Heat Deflection Temp. @ 0.45 MPa

48°C118 °F
47°C117 °F

Heat Deflection Temp. @ 1.8 MPa

42°C108 °F
46°C115 °F

Same in both: Thermal Conductivity 0.2 W/m·K0.12 BTU/hr·ft·°F · Specific Heat Capacity 1,500 J/kg·K0.36 BTU/lb·°F · Max Service Temperature (continuous) 45°C113 °F · Min Service Temperature -20°C-4 °F

Electrical

Conductivity and insulation.

Volume Resistivity

1×10¹⁴ Ω·cm
—

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

70 / 100
—

UV / Weathering Resistance

20 / 100
25 / 100

Manufacturability

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

Machinability

45 / 100
55 / 100

Weldability

5 / 100
—

Formability (cold)

15 / 100
—

Polishability

45 / 100
65 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

115 MJ/kg49,441 BTU/lb
120 MJ/kg51,591 BTU/lb

Embodied Carbon (primary production)

5.5 kg CO₂/kg
6 kg CO₂/kg

Same in both: Typical Recycled Content 0%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

21 kN·m/kg
49 kN·m/kg

Specific Stiffness (E / density)

0.9 MN·m/kg
2.1 MN·m/kg

Same in both: Thermal Diffusivity 0.1 mm²/s · Thermal Shock Resistance Index 0

Strength versus weight

Yield strength against density for every polymer grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.

0.1110100123Density (g/cm³)Yield strength (MPa) — log scaleDurus

Manufacturing and finishing

CapabilityDurusVeroGray
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

Durus vs VeroGray — frequently asked

Is VeroGray stronger than Durus?

Yes. VeroGray has a typical tensile strength of 57 MPa (8.27 ksi) against 25 MPa (3.63 ksi) for Durus — about 128% more.

Which is cheaper, Durus or VeroGray?

Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.

Which is easier to machine, Durus or VeroGray?

VeroGray. Its machinability rates good (55/100) against fair (45/100) for Durus.

Ready to make it?

Upload a CAD file and FabDigit prices the part in Durus and VeroGray 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.