Duran vs Soda-Lime Glass
Glass · grade comparison
Duran and Soda-Lime Glass are both glass grades. Soda-Lime Glass is the stronger of the two: tensile strength 45 MPa (6.53 ksi) against 35 MPa (5.08 ksi) for Duran, about 29% more. Duran is harder — 580 HV against 550 HV for Soda-Lime Glass — which matters for wear surfaces and threads. Duran is lighter (2.23 g/cm³ vs 2.5 g/cm³ for Soda-Lime Glass) and Soda-Lime Glass is stiffer (72 GPa vs 64 GPa). On the shop floor, Soda-Lime Glass machines more easily (poor vs not recommended) and Soda-Lime Glass sits in a lower cost tier (budget, $) than Duran (premium, $$$).
DuranChoose it when surface hardness matters, or when weight is the constraint.
Soda-Lime GlassChoose it when strength drives the design, or when the part is machined in volume.
Duran vs Soda-Lime Glass: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all glass 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 glass 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.
Elastic (Young's) Modulus
Shear Modulus
Bulk Modulus
Poisson's Ratio
Tensile Strength (Ultimate)
Compressive Strength
Flexural Strength
Hardness, Vickers
Same in both: Elongation at Break 0% · Fracture Toughness (K_IC) 0.75 MPa·√m0.68 ksi·√in · Hardness, Knoop 480 HK · Hardness, Mohs 5.5
Physical
Density and transition temperatures.
Density
Refractive Index
Light Transmission
Same in both: Porosity 0%
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Specific Heat Capacity
Thermal Expansion (CTE, 20–100 °C)
Max Service Temperature (continuous)
Same in both: Min Service Temperature -70°C-94 °F
Electrical
Conductivity and insulation.
Electrical Resistivity
Dielectric Strength
Dielectric Constant (1 MHz)
Dissipation Factor (1 MHz)
Volume Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Same in both: Polishability 95 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Embodied Water
Typical Recycled Content
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Thermal Diffusivity
Same in both: Thermal Shock Resistance Index 0
Strength versus weight
Yield strength against density for every glass grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.
Manufacturing and finishing
| Capability | Duran | Soda-Lime Glass |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$ Premium | $ Budget |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Duran vs Soda-Lime Glass — frequently asked
Is Soda-Lime Glass stronger than Duran?
Yes. Soda-Lime Glass has a typical tensile strength of 45 MPa (6.53 ksi) against 35 MPa (5.08 ksi) for Duran — about 29% more.
Which is cheaper, Duran or Soda-Lime Glass?
Soda-Lime Glass is the lower-cost material: it sits in the budget tier ($) while Duran is premium ($$$). 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, Duran or Soda-Lime Glass?
Soda-Lime Glass. Its machinability rates poor (20/100) against not recommended (10/100) for Duran.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Duran and Soda-Lime Glass 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.