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[China]
Trade Verify
Address: NO.12 HUANGHE RD ,HUANGJINAG , DONGGUAN, GD,CHINA
Contact name:David
VEDALI HARDWARE CO., LTD |
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Verified Suppliers
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Lightweight Plastic Spacer Washers PC Plain Flat DIN 125 Washers
With good performances plastic flat washers are made from apparent PC (Polycarbonate) material , all burrs are removed and no sharp edge for easy installation .
Plastic PC flat washers are very good on elongation , they are not deformed even in heavy load pressure and perfect elastic resilience performance make plastic PC flat washers are used to
▲ Valve
▲ Car
▲ Sealing box
▲ Electrical components
▲ Electronics
▲ Medical device
Generally , plastic PC flat washers are used with bolt or screw or shaft assembled to increase friction and sealing purpose .
Material
Made from plastic PC (Polycarbonate)
Fire Proof Class
UL94V-0 standard
Physical Performance
| Density ( g/cm3) | 1.2 |
| Water absorption % | 0.1～0.15 |
| Shrinkage % | 0.1～0.2 |
Mechanical Property
| Tensile strength MPa | 103 |
| Compressive strength at 20% tension kgf/mm2 | 80 |
| Elongation at break % | 3 |
| Bending strength MPa | 165 |
| Modulus of elasticity for bending MPa | 8270 |
| Notched Impact Strength MPa(kgf/mm) | 110 |
| Hardness HR | 90 |
| Modulus of elasticity for tension MPa | 2280 |
Electrical Performance
| Specific volume resistance Ω·cm | 1E + 18 |
| Heat conduction W/m.K | 0.13～0.2 |
| Dielectric constant | 3 |
Thermal Performance
| Heat distortion temperature ℃ | 115～127 |
| Coefficient of linear expansion k | 0.00007 |
| Normal working temperature ℃ | 110～130 |
| Brittle temperature ℃ | -100 |
| Melting temperature ℃ | 130 |
| Pyrogenic decomposition temperature ℃ | 350 |
Specification
| d1 | 20.5 | ±0.2 |
| d2 | 10 | ±0.2 |
| s | 2 | ±0.2 |
1 , All sizes are in millimeter
2 , Unspecified tolerances are referred to ISO 2768m .
Characteristics
1 , High resistant impact
2 , Perfect electrical performance
3 , Odorless with environment protection
4 , Low shrinkage
Generally , it is 0.1%~0.2%
5 , Stable dimensions
6 , High refractivity
Refractivity is 1.578 based on ISO 489 standard
7 , Good thermal stability
Plastic PC flat washers can work in -100℃ to 130℃
8 , Fine shininess
9 , Inhibiting bacterial
10 , Fire resistance
The grade for fire resistance is UL94V-0 without any additive
11 , Hard with good elongation
12 , Perfect apparent performance
Transparency is up to 90% .
13 , Good insulation
14 , Resistance to corrosion
Plastic PC flat washers are resistant to acid , salty , oil and alcohol .
15 , Wide working temperature
Plastic PC flat washers can be operated from -100℃ to 130℃ and brittle temperature below -100℃
In addition to metric sizes , we are available for BSW sizes and material cover PP , PA , ABS ,POM and rubber . Here are some BSW specifications for plastic PC flat washers .
| Normal | d1 | d2 | s |
| #6 | 0.156 | 0.375 | 0.049 |
| #8 | 0.188 | 0.438 | 0.049 |
| #10 | 0.219 | 0.5 | 0.049 |
| #12 | 0.25 | 0.562 | 0.065 |
| 1/4 | 0.281 | 0.625 | 0.065 |
| 5/16 | 0.344 | 0.688 | 0.065 |
| 3/8 | 0.406 | 0.812 | 0.065 |
| 7/16 | 0.469 | 0.922 | 0.065 |
| 1/2 | 0.531 | 1.062 | 0.095 |
| 9/16 | 0.594 | 1.156 | 0.095 |
| 5/8 | 0.656 | 1.312 | 0.095 |
| 3/4 | 0.812 | 1.469 | 0.134 |
| 7/8 | 0.938 | 1.75 | 0.134 |
| 1 | 1.062 | 2 | 0.314 |
| 1-1/8 | 1.25 | 2.25 | 0.134 |
| 1-1/4 | 1.375 | 2.5 | 0.165 |
| 1-3/8 | 1.5 | 2.75 | 0.165 |
| 1-1/2 | 1.625 | 3 | 0.165 |
| 1-5/8 | 1.75 | 3.75 | 0.18 |
| 1-3/4 | 1.875 | 4 | 0.18 |
| 1-7/8 | 2 | 4.25 | 0.18 |
| 2 | 2.125 | 4.5 | 0.18 |
| 2-1/4 | 2.375 | 4.75 | 0.22 |
| 2-1/2 | 2.625 | 5 | 0.238 |
| 2-3/4 | 2.875 | 5.25 | 0.259 |
| 3 | 3.125 | 5.5 | 0.284 |
Note : pleas contact us for customized specifications for Plastic PC flat washers flat washers .
