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| ID Material | PA |
|---|---|
| Responsable | R.Antich |
| Revision | 0 |
| Revision date | 31/03/2026 |
SA7251
SA7251 is rigid moulded, asbestos free friction material on a elastomeric/resin matrix, reinforced with synthetic fibers, without metal components. This matrix help so much at mechanical propieties. SA7251 is fully cured material and is suitable for bonding & rivetting.
Material data
Friction properties
| Static Friction Coefficient (@15bar, from the box) | 0.35±0.05 μ |
|---|---|
| Static Friction Coefficient (@15bar, 100ºC) | 0.35±0.05 μ |
| Dynamic Friction Coefficient (10bar, 10m/s) | 0.44±0.05 |
| Wear Rate (@10bar, 15m/s) | 25 (at 150 ºC) |
| Tº Fading (@10bar, 10m/s) | >350 °C |
Physical properties
| Hardness (DIN53505) | 82±5 Shore-D |
|---|---|
| Specific Gravity (ASTM D792) | 1.70 ± 0.1 gr/cm3 |
| Thermal Conductivity (ASTM E1952) | 0.49±0.01 W/m°K |
Mechanical properties
| Tensile Strength (ASTM D638) | 25±5 N/mm² |
|---|---|
| Compressive Strength (ISO 844:2014) | 130±5 N/mm² |
| Young Modulus (ASTM D638) | 2510±100 N/mm² |
Recommended Working Values
| Tº Max. Continuous Operation | <250 °C |
|---|---|
| Tº Max. Intermittent Operation | <400 °C |
| Max. Pressure | <50 Bar |
| Max. Rubbing Speed | <40 m/s |
Material type
Rigid
Appearance / Formats
Applications
Brake pads · Drum Brakes · Industral clutches · Miscellaneous industrial brakes / clutches · Rings segments for machinery
Price Level
€€€
Reach (EC)1907/2023 - RoHS 2015/863/EU
Compliance
Others
| Recommended Mating Surface | Perlitic cast iron, hardness HB150-200 |
|---|---|
| Recommended Adhesives | Thermosetting adhesive |
| Oil Resistant | Poor |
Charts
