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Pyroceram 9606 GREEN-GLASS

Heat-treated state

also Corning 9606

Pick for near-net shaping: the parent glass can be pressed, drawn or conventionally ground, then cerammed to final properties (with ~1–2 % shrinkage).

High cost $$$$

Values for the GREEN-GLASS condition

Other Pyroceram 9606 tempers and conditions

Pyroceram 9606 is listed in 2 conditions; see the grade overview at Pyroceram 9606.

Compare all 2 conditionsHide
Condition · open for datasheetBest forYield MPaTensile MPaElong. %HardnessConductivity
GREEN-GLASSThis page
formed but not yet crystallized
Pick for near-net shaping: the parent glass can be pressed, drawn or conventionally ground, then cerammed to final properties (with ~1–2 % shrinkage).—500560 HV2 W/m·K
CERAMMEDDefault
fully crystallized, as-fired/ground surface
Standard fully crystallized condition for radomes, substrates and heat-resistant structural parts.—1200700 HV4 W/m·K

What is Pyroceram 9606 GREEN-GLASS?

Pyroceram 9606 GREEN-GLASS is Pyroceram 9606 heat treated to GREEN-GLASS — pick for near-net shaping: the parent glass can be pressed, drawn or conventionally ground, then cerammed to final properties (with ~1–2 % shrinkage). Pyroceram 9606 GREEN-GLASS has a tensile strength of 50 MPa (7.25 ksi), stronger than 59% of glass grades. Elongation at break is 0% and the elastic modulus is 90 GPa (13.1 Msi). Pyroceram 9606 GREEN-GLASS has a density of 2.5 g/cm³ (0.0903 lb/in³), lighter than 74% of glass grades. It melts at 1,350°C (2,462 °F). CERAMMED is the default condition FabDigit quotes; GREEN-GLASS is available on request or by drawing note.

Advantages

  • Stiff — 90 GPa (13.1 Msi), better than 75% of glass grades

Limitations

  • Hard to polish — 70/100, worse than 76% of glass grades

Pyroceram 9606 GREEN-GLASS properties

Typical room-temperature values for Pyroceram 9606 GREEN-GLASS; 15 are specific to this condition. Other listed values are Pyroceram 9606 reference data and may not represent this condition. Bars are the position among glass grades.

Physical4

Pyroceram 9606 GREEN-GLASS has a density of 2.5 g/cm³ (0.0903 lb/in³), lighter than 74% of glass grades. It melts at 1,350°C (2,462 °F).

Density2.5 g/cm³0.09 lb/in³
Melting Point (Solidus)1,350°C2,462 °F
Light Transmission0%
Porosity0%

Mechanical13

Pyroceram 9606 GREEN-GLASS has a tensile strength of 50 MPa (7.25 ksi), stronger than 59% of glass grades. Elongation at break is 0% and the elastic modulus is 90 GPa (13.1 Msi).

Elastic (Young's) Modulus90 GPa13.1 Msi
Shear Modulus48 GPa7 Msi
Bulk Modulus78 GPa11.3 Msi
Poisson's Ratio0.25
Tensile Strength (Ultimate)50 MPa7.3 ksi
Elongation at Break0%
Compressive Strength800 MPa116 ksi
Flexural Strength70 MPa10.2 ksi
Shear Strength55 MPa8 ksi
Fracture Toughness (K_IC)0.8 MPa·√m0.73 ksi·√in
Hardness, Vickers560 HV
Hardness, Knoop698 HK
Hardness, Mohs6.5

Thermal5

Pyroceram 9606 GREEN-GLASS is rated for continuous service to 600°C (1,112 °F). It conducts heat at 1.7 W/m·K (0.982 BTU/hr·ft·°F), better than 66% of glass grades. Thermal expansion is 4 µm/m·K (2.22 µin/in·°F).

Thermal Conductivity1.7 W/m·K0.98 BTU/hr·ft·°F
Specific Heat Capacity800 J/kg·K0.19 BTU/lb·°F
Thermal Expansion (CTE, 20–100 °C)4 µm/m·K2.2 µin/in·°F
Max Service Temperature (continuous)600°C1,112 °F
Min Service Temperature-200°C-328 °F

Electrical5

Pyroceram 9606 GREEN-GLASS is an electrical insulator with a dielectric strength of 16 kV/mm (406.4 V/mil) and a resistivity of 1×10¹⁰ Ω·m.

Electrical Resistivity1×10¹⁰ Ω·m3.94×10¹⁷ µΩ·in
Dielectric Strength16 kV/mm406 V/mil
Dielectric Constant (1 MHz)5.6
Dissipation Factor (1 MHz)3×10⁻⁴
Volume Resistivity1×10¹⁴ Ω·cm

Chemical & Environmental2

Corrosion resistance is very good (72/100), worse than 53% of glass grades.

Corrosion ResistanceVery good72/100
Chemical Resistance SummaryExcellent resistance to water, steam, weak acids, salts and most organics; attacked by hydrofluoric acid, hot concentrated phosphoric acid and strong hot alkalis, which leach the residual glassy phase.

Sustainability4

Producing a kilogram of Pyroceram 9606 GREEN-GLASS takes about 45 MJ of energy and emits 3 kg of CO₂ — less than 58% of glass grades. Typical recycled content is 5%.

Embodied Energy (primary production)45 MJ/kg19,347 BTU/lb
Embodied Carbon (primary production)3 kg CO₂/kg
Embodied Water25 L/kg3 gal/lb
Typical Recycled Content5%

Manufacturability3

Pyroceram 9606 GREEN-GLASS's machinability is poor (25/100, better than 63% of glass grades).

MachinabilityPoor25/100
PolishabilityVery good70/100
Sintering / Firing Temperature1,200°C2,192 °F

Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.

Working with Pyroceram 9606 GREEN-GLASS

Is Pyroceram 9606 easy to machine?

After ceramming only diamond grinding, lapping, ultrasonic or laser machining works; do rough shaping in the parent-glass state and allow ~1–2 % crystallization shrinkage.

Can Pyroceram 9606 be welded?

Not weldable; join by glass frit sealing, active-metal brazing or ceramic adhesives, matching CTE (~4.5 ppm/K) to avoid seal stress.

Can Pyroceram 9606 be formed, bent or molded?

Formed as a glass — pressed, spun, cast or drawn — then given a two-stage nucleation/crystal-growth heat treatment near 1100–1250 °C.

What surface finishes work on Pyroceram 9606?

Fine grinding and polishing raise strength by removing surface flaws; can be metallized (Mo-Mn or thin-film) for substrate and RF applications.

Pyroceram 9606 chemical composition (wt %)

Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.

ElementSpec limit (wt %)Nominal
SiO2network former54 – 5856
Al2O318 – 2220
MgOforms cordierite phase13 – 1615
TiO2nucleating agent7 – 109
As2O3 + minor oxidesfining agent / residual glassy phase modifiers0 – 10.5

Pyroceram 9606 GREEN-GLASS — frequently asked

What is Pyroceram 9606 GREEN-GLASS used for?

Pyroceram 9606 GREEN-GLASS is typically used for radome material, missile nose cones, cookware and heat exchangers. In short: original commercial glass-ceramic; service to 1200 °C; radome-grade glass-ceramic.

What is the tensile strength of Pyroceram 9606 GREEN-GLASS?

Pyroceram 9606 GREEN-GLASS has a typical tensile strength of 50 MPa (7.25 ksi) — stronger than 59% of glass grades. Strength varies by condition: see the 2 listed tempers.

Is Pyroceram 9606 GREEN-GLASS easy to machine?

Not especially — machinability is rated poor (25/100, better than 63% of glass grades). After ceramming only diamond grinding, lapping, ultrasonic or laser machining works; do rough shaping in the parent-glass state and allow ~1–2 % crystallization shrinkage.

Can Pyroceram 9606 GREEN-GLASS be welded?

Not weldable; join by glass frit sealing, active-metal brazing or ceramic adhesives, matching CTE (~4.5 ppm/K) to avoid seal stress.

What surface finishes work on Pyroceram 9606 GREEN-GLASS?

Fine grinding and polishing raise strength by removing surface flaws; can be metallized (Mo-Mn or thin-film) for substrate and RF applications.

Can Pyroceram 9606 GREEN-GLASS be formed, bent or molded?

Formed as a glass — pressed, spun, cast or drawn — then given a two-stage nucleation/crystal-growth heat treatment near 1100–1250 °C.

What is the maximum service temperature of Pyroceram 9606 GREEN-GLASS?

Pyroceram 9606 GREEN-GLASS is rated for continuous use to about 600°C (1,112 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.

Sources

  1. Pyroceram Brand Glass-Ceramic Code 9606 Property Data — Corning Glass Works (1985)
  2. Engineered Materials Handbook Vol.4: Ceramics and Glasses — ASM International (1991)
  3. Glass-Ceramic Technology — Wiley/American Ceramic Society (Höland & Beall) (2012)
  4. Ceramic radome material property compilations (MAS glass-ceramics) — AFRL/NASA technical reports (1980)

Property data is compiled from published supplier and standards handbooks and normalised for comparison. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.