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Durus vs VeroBlackPlus

Polymer · grade comparison

Durus and VeroBlackPlus are both polymer grades. VeroBlackPlus is the stronger of the two: yield strength 50 MPa (7.25 ksi) against 22 MPa (3.19 ksi) for Durus, about 127% more; tensile strength follows at 55 MPa (7.98 ksi) vs 25 MPa (3.63 ksi). In exchange, Durus is the more ductile: elongation 45% versus 17% for VeroBlackPlus, and VeroBlackPlus is harder (84 Shore D vs 68 Shore D). VeroBlackPlus is stiffer (2.5 GPa vs 1.1 GPa). On the shop floor, VeroBlackPlus machines more easily (good vs fair).

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

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

Durus vs VeroBlackPlus: properties

DurusVeroBlackPlus

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
55 MPa8 ksi

Yield Strength (0.2% offset)

22 MPa3.2 ksi
50 MPa7.3 ksi

Elongation at Break

45%
17%

Flexural Strength

32 MPa4.6 ksi
90 MPa13.1 ksi

Flexural Modulus

1.1 GPa0.16 Msi
2.6 GPa0.38 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
115 HRR

Compressive Strength

—
80 MPa11.6 ksi

Shear Strength

—
38 MPa5.5 ksi

Fracture Toughness (K_IC)

—
1.4 MPa·√m1.3 ksi·√in

Hardness, Rockwell M

—
80 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%

Water Absorption (Saturation)

—
1.8%

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
43°C109 °F

Vicat Softening Point (B50)

—
50°C122 °F

Limiting Oxygen Index

—
19%

Max Service Temperature (short-term)

—
60°C140 °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.

Electrical Resistivity

—
1×10¹² Ω·m3.94×10¹⁹ µΩ·in

Same in both: Volume Resistivity 1×10¹⁴ Ω·cm

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

UV / Weathering Resistance

20 / 100
30 / 100

Same in both: Corrosion Resistance 70 / 100

Manufacturability

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

Machinability

45 / 100
55 / 100

Weldability

5 / 100
10 / 100

Formability (cold)

15 / 100
5 / 100

Polishability

45 / 100
80 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

115 MJ/kg49,441 BTU/lb
110 MJ/kg47,292 BTU/lb

Same in both: Embodied Carbon (primary production) 5.5 kg CO₂/kg · Typical Recycled Content 0%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

21 kN·m/kg
47 kN·m/kg

Specific Stiffness (E / density)

0.9 MN·m/kg
2.1 MN·m/kg

Modulus of Resilience

220 kJ/m³
500 kJ/m³

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 scaleVeroBlackPlusDurus

Manufacturing and finishing

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

Durus vs VeroBlackPlus — frequently asked

Is VeroBlackPlus stronger than Durus?

Yes. VeroBlackPlus has a typical yield strength of 50 MPa (7.25 ksi) against 22 MPa (3.19 ksi) for Durus — about 127% more. Tensile strength is 55 MPa (7.98 ksi) vs 25 MPa (3.63 ksi).

Which is cheaper, Durus or VeroBlackPlus?

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 VeroBlackPlus?

VeroBlackPlus. Its machinability rates good (55/100) against fair (45/100) for Durus; for welding the order is VeroBlackPlus first (not recommended, 10/100) then Durus (not recommended, 5/100).

Ready to make it?

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