Main Products: FR4 G10 G11 ,3240 Epoxy fiberglass laminated sheet ,3025 phenolic cotton cloth laminated sheet ,3021 phenolic paper laminated sheet bakelite ,dmd dm electrical insulation paper
3021 bakelite sheet
USD $1 - $10 /Kilogram
Min.Order:1000 Kilograms
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New Light (Xuchang) Electrical Insulation Materials Limited
Business Type: Trading Company
Xuchang Henan ChinaMain Products: FR4 G10 G11 ,3240 Epoxy fiberglass laminated sheet ,3025 phenolic cotton cloth laminated sheet ,3021 phenolic paper laminated sheet bakelite ,dmd dm electrical insulation paperProduct Details
3021 bakelite sheet
1.Description: phenolic bakelite sheet is made from paper that impregnated with phenolic resin under pressure and heat. With high mechanical strength and electrical properties
2.Specifications:
1).Thermal grade: class E. 2).Thickness : 3-100mm
3).Size: 980 x 1,980mm ± 10mm; 1,000 X2,000mm ± 10mm ; 1030X(2000-2300) ± 10mm , (980-1030)x(980-1500) ± 10mm
3. standard color: Brown .orange,black
4. Applications:
It is used for the insulating spare parts of electrical appliances and transformers, high mechanical properties electrical and mechanical devices.
3021A, 3021B, 3021C (China standard) is in accordance with X, XX, XXX, XP, XXP, XXXP, XPC (
NEMA standard)
Properties | Unit | Index Value | 3021A(Fact Value) |
Flexural strength perpendicular to laminations | MPa | ≥120 | 126 |
Bonding strength (≥10mm in thickness) | N | ≥3200 | 4100 |
Impact Strength | KJ/m2 | ≥15 | 17.5 |
Tensile strength | Mpa | ≥100 | 103 |
Insulation resistance after immersion in water (D-24/23) | Ω | ≥1.0×107 | 4.5×107 |
Dielectric strength perpendicular to laminations (in 90±5°C transformer oil, 1 mm in thickness) | MV/m | ≥ 84 | 92 (90±5°C) |
Breakdown voltage parallel to laminations | KV | ≥ 20 | 22 |
(in 20±5°C transformer oil) | |||
Permittivity (50Hz) | — | - | - |
Permittivity (1MHz) | — | ≤5.5 | 5 |
Dissipation factor (50Hz) | — | ≤ | - |
Dissipation factor (1MHz) | — | ≤0.05 | 0.03 |
Density | g/cm3 | 1.30-1.45 | 1.41 |
Water absorption (D-24/23, 1.6mm in tickness) | mg | ≤182 | 163 |
Color | — | Organge | |
Reference standard | — | Enterprise Standard |
| Properties | Unit | Index Value | Fact Value | |
| 3021B | 3021B | |||
| Density | g/cm3 | 1.30-1.45 | 1.4 | |
| Flexural strength | Mpa | ≥118 | 126 | |
| Tensile strength | Mpa | ≥88 | 96 | |
| Adhesive strength | N | 3200 | 3600 | |
| Impact strength | KJ/M2 | 15 | 18 | |
| insulation resistance Parallel to lamination | normal | MΩ | ≥1.0*1014 | 1.2*105 |
| damp | ≥1.0*102 | 1.8*103 | ||
| voltage resistance Parallel to lamination (in 20°C±5°C transformer oil 5min) | kv | ≥14 | OK | |
| voltage resistance perpendicular to laminate (in 20°C±5°C transformer oil 5min) | 0.2-1mm | kv/mm | ≥14 | OK |
| 1.1-2mm | ||||
| 2.1-3mm | ||||
| thermal stability | <20mm | °C | 90 | OK |
| >20mm | ||||
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