Soda-Lime Glass ANN vs Soda-Lime Glass FT
Glass · Soda-Lime Glass temper comparison
Soda-Lime Glass ANN and Soda-Lime Glass FT are two conditions of the same glass grade, Soda-Lime Glass: ANN (annealed) versus FT (fully tempered / toughened). The chemistry is identical, so every difference below comes from the condition. Soda-Lime Glass FT is the stronger of the two: tensile strength 150 MPa (21.8 ksi) against 45 MPa (6.53 ksi) for Soda-Lime Glass ANN, about 3.3 times as much. Soda-Lime Glass FT runs hotter in service (250°C vs 110°C continuous). On the shop floor, Soda-Lime Glass ANN machines more easily (poor vs not recommended).
Soda-Lime Glass ANNChoose it when the part is machined in volume.
Soda-Lime Glass FTChoose it when strength drives the design, or when the part sees heat.
Soda-Lime Glass ANN vs Soda-Lime Glass FT: 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.
Soda-Lime Glass ANNSoda-Lime Glass FT
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Tensile Strength (Ultimate)
Compressive Strength
Flexural Strength
Same in both: Elastic (Young's) Modulus 72 GPa10.4 Msi · Shear Modulus 29.5 GPa4.3 Msi · Bulk Modulus 43 GPa6.2 Msi · Poisson's Ratio 0.22 · Elongation at Break 0% · Fracture Toughness (K_IC) 0.75 MPa·√m0.68 ksi·√in · Hardness, Vickers 550 HV · Hardness, Knoop 480 HK · Hardness, Mohs 5.5
Physical
Density and transition temperatures.
Same in both: Density 2.5 g/cm³0.09 lb/in³ · Refractive Index 1.52 · Light Transmission 90% · Porosity 0%
Thermal
How each material carries heat and how hot it can run.
Max Service Temperature (continuous)
Same in both: Thermal Conductivity 1 W/m·K0.58 BTU/hr·ft·°F · Specific Heat Capacity 840 J/kg·K0.2 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 9 µm/m·K5 µin/in·°F · Min Service Temperature -70°C-94 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Resistivity 1×10¹⁰ Ω·m3.94×10¹⁷ µΩ·in · Dielectric Strength 12 kV/mm305 V/mil · Dielectric Constant (1 MHz) 7.2 · Dissipation Factor (1 MHz) 0.009 · Volume Resistivity 1×10¹² Ω·cm
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Corrosion Resistance 85 / 100
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.
Same in both: Embodied Energy (primary production) 15 MJ/kg6,449 BTU/lb · Embodied Carbon (primary production) 1.2 kg CO₂/kg · Embodied Water 14 L/kg1.7 gal/lb · Typical Recycled Content 22%
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.
Soda-Lime Glass ANN vs Soda-Lime Glass FT — frequently asked
Is Soda-Lime Glass FT stronger than Soda-Lime Glass ANN?
Yes. Soda-Lime Glass FT has a typical tensile strength of 150 MPa (21.8 ksi) against 45 MPa (6.53 ksi) for Soda-Lime Glass ANN — about 3.3 times as much.
Which condition does FabDigit quote by default, ANN or FT?
ANN is the default Soda-Lime Glass condition in the FabDigit quote flow. The other condition is available on request or by drawing note — specify it in the material field or the part notes and the quote is priced for it.
Which is easier to machine, Soda-Lime Glass ANN or Soda-Lime Glass FT?
Soda-Lime Glass ANN. Its machinability rates poor (20/100) against not recommended (2/100) for Soda-Lime Glass FT.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Soda-Lime Glass ANN and Soda-Lime Glass FT 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.