Zircalon
Zirconia (or zirconium dioxide, ZrO2) is characterized by high impact resistance and very high strength and toughness giving it excellent wear resistance. In addition it is chemically stable resulting in excellent corrosion resistance.
Zirconia is typically used in applications in the metal forming (link to our metal forming page) industry as weld location pins (link to our weld pin page) for resistance welding of captive nuts on sheet metal.
Production Engineering offers three grades of zirconia: Zircalon 5, Zircalon 10 and Zircalon 20. The properties of these materials are outlined below.
Zircalon 5
Zircalon 5 is an yttria stabilized zirconia (YSZ) and has very good strength and toughness. The table below lists typical mechanical, thermal and electrical property data for Zircalon 5.
Physical property data for Zircalon 5
| Property | Value | Units | |||
|---|---|---|---|---|---|
| www.resistanceweldsupplies.com | |||||
| Composition | YSZ | - | |||
| Density | 6.13 | g/cc | |||
| Porosity | 0 | % | |||
| 3 point Modules of Rupture 20°C (Specimen 3 × 3 × 50mm, span 19.05mm) |
1000 | MPa | |||
| Weibull Modulus | 15 | - | |||
| Compressive Strength | >2000 | MPa | |||
| Young's Modulus of Elasticity | 205 | GPa | |||
| Poisson's Ratio | 0.30 | - | |||
| Hardness (HRA) | 91 | - | |||
| Hardness (Vickers Hv50) | 13.24 (1350) | GPa (Kg/mm2) | |||
| Fracture Toughness K1C | 8.0 | MPa m½ | |||
| Thermal Expansion Coefficient (0-1200°C) | 10.0X10-6 | K-1 | |||
| Thermal Conductivity | 2.0 | W/(mK) | |||
| Thermal Shock Resistance | 250 | ΔT°C quenched in cold water | |||
| Maximum Use Temperature | 1000 | °C | |||
| RT Electrical Resistivity | 1011 | ohm cm | |||
Zircalon 10
Zircalon 10 is an yttria stabilized zirconia (YSZ) and has higher strength and toughness than Zircalon 5. The table below lists typical mechanical, thermal and electrical property data for Zircalon 10.
Physical property data for Zircalon 10
| Property | Value | Units | |||
|---|---|---|---|---|---|
| www.resistanceweldsupplies.com | |||||
| Composition | YSZ | - | |||
| Density | 6.05 | g/cc | |||
| Porosity | 0 | % | |||
| 3 point Modules of Rupture 20°C (Specimen 3 × 3 × 50mm, span 19.05mm) |
1200 | MPa | |||
| Weibull Modulus | 15 | - | |||
| Compressive Strength | >2000 | MPa | |||
| Young's Modulus of Elasticity | 205 | GPa | |||
| Poisson's Ratio | 0.30 | - | |||
| Hardness (HRA) | 91 | - | |||
| Hardness (Vickers Hv50) | 13.24 (1350) | GPa (Kg/mm2) | |||
| Fracture Toughness K1C | 10.0 | MPa m½ | |||
| Thermal Expansion Coefficient (0-1200°C) | 10.0X10-6 | K-1 | |||
| Thermal Conductivity | 2.0 | W/m/K | |||
| Thermal Shock Resistance | 250 | ΔT°C quenched in cold water | |||
| Maximum Use Temperature | 1000 | °C | |||
| RT Electrical Resistivity | 1011 | ohm cm | |||
Zircalon 20
Zircalon 20 is a magnesia stabilized zirconia (MSZ) and has better thermal shock resistance than either Zircalon 5 or Zircalon 10. The table below lists typical mechanical, thermal and electrical property data for Zircalon 20.
Physical property data for Zircalon 20
| Property | Value | Units | |||
|---|---|---|---|---|---|
| www.resistanceweldsupplies.com | |||||
| Composition | MSZ | - | |||
| Density | 5.7 | g/cc | |||
| Porosity | 0 | % | |||
| 3 point Modules of Rupture 20°C (Specimen 3 × 3 × 50mm, span 19.05mm) |
500 | MPa | |||
| Weibull Modulus | 15 | - | |||
| Compressive Strength | >1600 | MPa | |||
| Young's Modulus of Elasticity | 210 | GPa | |||
| Poisson's Ratio | 0.30 | - | |||
| Hardness (HRA) | 90 | - | |||
| Hardness (Vickers Hv50) | 11.24 (1200) | GPa (Kg/mm2 | |||
| Fracture Toughness K1C | 7.0 | MPa m½ | |||
| Thermal Expansion Coefficient (0-1200°C) | 11.0X10-6 | K-1 | |||
| Thermal Conductivity | 2.5 | W/m/K | |||
| Thermal Shock Resistance | 350 | ΔT°C quenched in cold water | |||
| Maximum Use Temperature | 1000 | °C | |||
| RT Electrical Resistivity | 1011 | ohm cm | |||
Weld Location Pins
International Syalons manufactures a comprehensive range of silicon nitride, sialon and zirconia advanced ceramic weld location and control pins. These are used in the metal forming industry to allow precise welding of nuts to sheet metal. Sialons are silicon nitride based ceramics which possess a number of characteristics, such as excellent mechanical, thermal and chemical properties, making them ideal in metal forming applications. Syalon 101 weld location pins have a proven history of success of more than 20 years by several leading automotive manufacturers.
Zircalon weld location pins are a more recent addition to our portfolio. They excel where their greater toughness is required, such as when severe impact is a possibility. Like Syalon 101 they have excellent wear resistance, however they are not recommended where thermal shock may occur. Also, they are double the weight of an equivalent Syalon 101 weld pin. Zircalon is available in two grades, Zircalon 5 and Zircalon 10. Zircalon 10 has slightly superior properties for applications which demand it.
The tables below show our range of standard weld pins. However, we make a whole range of none standard sizes, so please contact us with your enquiry.
Standard Weld Pins–Technical Information
| Part Number | NUT SIZE | A | B | C | D | E | F | G | R |
|---|---|---|---|---|---|---|---|---|---|
| ISN 050060 | M5 | 6 | 2 | 12 | 1 | 6.0 | 7.5 | 15 | 15 |
| ISN 060070 | M6 | 7 | 2 | 12 | 2 | 7.0 | 9.5 | 15 | 15 |
| ISN 060078 | M6 | 7 | 2 | 12 | 2 | 7.8 | 9.5 | 15 | 15 |
| ISN 060088 | M6 | 10 | 3 | 12 | 2 | 8.8 | 8.0 | 15 | 15 |
| ISN 080090 | M8 | 10 | 5 | 14 | 2.5 | 9.0 | 7.5 | 15 | 12.5 |
| ISN 100110 | M10 | 12 | 4 | 16 | 2.5 | 11.0 | 8.0 | 15 | 12.5 |
| ISN 120130 | M12 | 13 | 4 | 18 | 2.5 | 13.0 | 8.0 | 15 | 12.5 |
| Part Number | NUT SIZE | HOLESIZE | A | B | C | D | E | F | G |
|---|---|---|---|---|---|---|---|---|---|
| ISN 1 DOL | M5 | 6.0 | 5.85 | 12.00 | 2.00 | 1.00 | 6 | 7.5 | 15.0 |
| ISN 2 DOL | M6 | 7.0 | 6.85 | 12.00 | 2.00 | 2.00 | 7 | 8.0 | 15.0 |
| ISN 2 DOL 7.2 | M8 T/LESS | 7.4 | 7.20 | 12.00 | 2.00 | 2.00 | 7 | 8.0 | 15.0 |
| ISN 3 DOL | M6 | 7.5 | 7.35 | 12.00 | 2.00 | 2.00 | 7 | 8.0 | 15.0 |
| ISN 4 DOL | M6 | 8.0 | 7.85 | 12.00 | 2.00 | 2.00 | 7 | 8.0 | 15.0 |
| ISN 5 DOL | M8 | 9.0 | 8.85 | 12.00 | 3.00 | 2.00 | 9 | 8.0 | 15.0 |
| ISN 6 DOL | M8 | 9.5 | 9.35 | 14.00 | 4.00 | 2.50 | 9 | 8.0 | 12.5 |
| ISN 7 DOL | M8 | 10.0 | 9.85 | 16.00 | 4.00 | 2.50 | 10 | 8.0 | 12.5 |
| ISN 815 DOL | M6 | 8.25 | 8.15 | 12.00 | 2.00 | 2.00 | 7 | 8.0 | 15.0 |
| ISN 9 DOL | M10 | 11.0 | 10.85 | 16.00 | 4.00 | 2.50 | 11 | 8.0 | 12.5 |
| ISN 10 DOL | M10 | 11.5 | 11.35 | 16.00 | 4.00 | 2.50 | 11 | 8.0 | 12.5 |
| ISN 1015 DOL | M8 | 10.25 | 10.15 | 16.00 | 4.00 | 2.50 | 10 | 8.0 | 12.5 |
| ISN 11 DOL | M10 | 12.0 | 11.85 | 16.00 | 4.00 | 2.50 | 11 | 8.0 | 12.5 |
| ISN 12 DOL | M12 | 13.0 | 12.85 | 16.00 | 4.00 | 2.50 | 12 | 8.0 | 12.5 |
| ISN 1215 DOL | M10 | 12.25 | 12.15 | 16.00 | 4.00 | 2.50 | 11 | 8.0 | 12.5 |
| ISN 13 DOL | M6 | 8.2 | 8.00 | 12.00 | 2.00 | 2.00 | 7 | 8.0 | 15.0 |
| Part Number | NUT SIZE | HOLESIZE | A | B | C | D |
|---|---|---|---|---|---|---|
| ISP 1 | M4, M5, M6 | 6.00 | 5.85 | 10.00 | 1.5 | 4.3 |
| ISP 2 | M6 | 7.00 | 6.85 | 10.00 | 1.5 | 5.2 |
| ISP 3 | M6 | 7.50 | 7.35 | 12.00 | 2.0 | 5.4 |
| ISP 4 | M6 | 8.00 | 7.85 | 12.00 | 2.0 | 5.8 |
| ISCP 5 | M8 | 9.00 | 8.85 | 14.00 | 3.0 | 6.2 |
| ISP 6 | M8 | 9.50 | 9.35 | 14.00 | 3.0 | 6.6 |
| ISP 7 | M8 | 10.00 | 9.85 | 14.00 | 3.0 | 7.0 |
| ISP 8 | M8 | 10.50 | 10.35 | 14.00 | 3.0 | 7.5 |
| ISP 9 | M10 | 11.00 | 10.85 | 16.00 | 3.5 | 7.7 |
| ISP 10 | M10 | 11.50 | 11.35 | 16.00 | 3.5 | 8.1 |
| ISP 11 | M10, 7/16 UNF | 12.00 | 11.85 | 16.00 | 3.5 | 8.5 |
| ISP 12 | M12, 7/16 UNF | 13.00 | 12.85 | 16.00 | 4.5 | 8.9 |
| ISP 13 | M10 | 12.50 | 12.35 | 16.00 | 3.5 | 8.9 |
| ISP 14 | M14 | 15.00 | 14.86 | 18.00 | 5.0 | 10.4 |
| ISP 15 | M12 | 14.00 | 13.85 | 16.00 | 4.0 | 10.0 |
| ISP 16 | 7/16 UNF | 14.50 | 14.35 | 16.00 | 4.5 | 10.2 |
| ISP 17 | 7/16 UNF | 13.50 | 13.35 | 16.00 | 4.5 | 9.3 |
| ISP 18 | M14 | 15.20 | 15.15 | 17.00 | 5.0 | 10.6 |
| ISP 24 | M6 | 8.25 | 8.10 | 12.00 | 2.0 | 6.0 |
| ISP 25 | M6 | 8.40 | 8.25 | 12.00 | 2.0 | 6.1 |
| ISP 26 | M12/LESS | 13.20 | 13.05 | 16.00 | 4.5 | 9.1 |
| ISP 27 | M8 | 8.70 | 8.55 | 12.00 | 2.0 | 6.4 |
| ISP 28 | M8 | 10.65 | 10.50 | 14.00 | 3.0 | 7.6 |
| ISP 29 | M8 | 8.15 | 8.05 | 12.00 | 2.0 | 6.0 |
| ISP 30 | M6 | 6.60 | 6.40 | 10.00 | 1.5 | 4.8 |
| Part Number | NUT SIZE | A | C | E | F | G |
|---|---|---|---|---|---|---|
| ISN 04048 | M4 | 3 | 12 | 4.8 | 6.5 | 12.0 |
| ISN 05058 | M5 | 3 | 12 | 5.8 | 7.5 | 12.0 |
| ISN 06068 | M6 | 5 | 12 | 6.8 | 9.5 | 13.9 |
| ISN 08078 | M8 | 6 | 14 | 7.8 | 9.5 | 13.9 |
| ISN 08088 | M8 | 6 | 14 | 8.8 | 8.0 | 13.9 |
| ISN 08090 | M8 | 6 | 14 | 9.0 | 7.5 | 13.9 |
| ISN 10102 | M10 | 7 | 16 | 10.2 | 8.0 | 13.9 |
| ISN 10107 | M10 | 7 | 16 | 10.7 | 8.0 | 13.9 |
| ISN 12144 | M12 | 8 | 18 | 14.4 | 8.0 | 13.9 |
| ISN 12116 | M12 | 8 | 18 | 11.6 | 8.0 | 13.9 |
| Part Number | NUT SIZE | HOLESIZE | A | B | C | E | F |
|---|---|---|---|---|---|---|---|
| ISN 1C | M5 | 6.00 | 5.85 | 4.10 | 10.0 | 2.5 | 30.5 |
| ISN 4C | M6 | 8.00 | 7.85 | 4.90 | 12.0 | 4.0 | 31.5 |
| ISN 7C | M8 | 10.00 | 9.85 | 6.60 | 16.0 | 5 | 32.5 |
| ISN 11C | M10 | 12.00 | 11.85 | 8.40 | 16.0 | 5 | 33.5 |
| ISN 14C | M14 | 15.00 | 14.85 | 12.40 | 17.0 | 9 | 34.5 |
| ISN 15C | M12 | 14.00 | 13.85 | 10.50 | 16.0 | 8 | 34.5 |
| ISN 16C | M14 | 14.60 | 14.35 | 12.40 | 16.5 | 8 | 34.5 |
| ISN 20C | M12F | 12.7 | 12.5 | 10.50 | 16.0 | 8 | 34.5 |
| ISN 21C | M12F | 13.20 | 13.05 | 10.65 | 16.0 | 8 | 34.5 |
| ISN 22C | BUSH | 9.20 | 9.1 | 8.45 | 14.0 | 6 | 33.5 |
| ISN 23C | M10 | 11.20 | 11.05 | 8.40 | 16.0 | 6 | 33.5 |
| ISN 24C | M6 | 8.25 | 8.10 | 4.90 | 12.0 | 4.0 | 31.5 |
| ISN 25C | M6 | 8.4 | 8.25 | 4.9 | 12.0 | 4.0 | 31.5 |
| ISN 716TL1215 | 7/16TL | 12.25 | 12.15 | 10.35 | 16.0 | 6 | 33.5 |
| ISN 716TL1225 | 7/16TL | 12.4 | 12.25 | 10.35 | 16.0 | 6 | 33.5 |
| Part Number | NUT SIZE | A | B | C | D | E | F | R1 | R2 |
|---|---|---|---|---|---|---|---|---|---|
| ISN 050070 | M6 | 4 | 16 | 7 | 12 | 5.0 | 7.0 | 2.5 | 1.5 |
| ISN 050088 | M6 | 4 | 16 | 7 | 12 | 5.0 | 8.8 | 2.5 | 1.5 |
| ISN 066110 | M8 | 7 | 15 | 7 | 16 | 6.6 | 11.0 | 3.3 | MIN |
| ISN 084110 | M10 | 5 | 16 | 7 | 16 | 8.4 | 11.0 | 2.0 | 1.5 |
| ISN 084144 | M10 | 5 | 16 | 7 | 16 | 8.4 | 14.35 | 2.0 | 1.5 |
| ISN 085121 | M10 | 7 | 14.4 | 7 | 16 | 8.5 | 12.1 | 2.0 | 1.5 |
| ISN 095130 | 7/16 | 10 | 16 | 9 | 18 | 9.5 | 13.0 | 2.0 | 1.5 |
| ISN 105130 | M12 | 10 | 18 | 9 | 18 | 10.5 | 13.0 | 2.0 | 1.5 |
| ISN 105140 | M12 | 10 | 18 | 9 | 18 | 10.5 | 14.0 | 2.0 | 1.5 |
Typical physical property data obtained under test conditions. All properties have been measured by independent testing authorities. The values given only apply to the test bodies on which they were determined, and therefore can only be recommended values. See our disclaimer.
Zircalon 5 and 10