![]( "AFM 7")
产品名称：AFM 7
产品材质：非石棉，无石棉垫片
产品应用：
产品认证：
技术参数：
AFM 5 / AFM 7
| Material |
AFM 5 is an asbestos-free gasket material. The core consists of a pegged, galvanized steel plate which is provided with a steel wire netting on both sides. A soft mass composed of inorganic fillers and high-grade elastomers is integrated into this metal laminate.
AFM 7 differs from AFM 5 in that stainless steel is used for its core. Due to the greater temperature resistance of the stainless steel pegged plate, AFM 7 can be subjected to higher thermal stress than AFM 5. |
| Properties |
Both materials are very resistant to temperature and stress. Due to their low relaxation rates, gaskets made of AFM 5/7 do not usually require retorque operations. |
| Application |
For sealing joints under high mechanical and thermal stress, for example in turbochargers and exhaust systems. When combined with a stainless steel inner eyelet or casing, the resistance to temperature (no direct contact of the hot exhaust fumes with the material core) and gas sealability (exclusion of transverse diffusion) can be increased even more.
The special material properties also permit the material to be used as cylinder head gasket material in certain applications. |
| Surfaces |
Special coatings applied over the entire surface or parts thereof are available for special applications. |
Technical Data
(Nominal thickness 1.50 mm) |
Weight per surface unit |
kg/m² |
 6.9 |
| Residual stress acc. to DIN 52 913 |
| 16 h, 300 °C |
N/mm² |
> 38 |
Compressibility and recovery
acc. to ASTM F 36, procedure J |
| compressibility |
% |
3 - 10 |
| recovery |
% |
> 45 |
| Swelling acc. to ASTM F 146 |
in IRM 903 Oil (replaces ASTM Oil No. 3)
5 h, 150 °C |
| increase in thickness |
% |
< 10 |
in water / antifreeze (50:50)
5 h, 100 °C |
| increase in thickness |
% |
< 4 |
| Max. operating temperature |
| AFM 5 |
°C |
600 |
| AFM 7 |
°C |
750 |
| Surface pressure |
| maximum at 300 °C |
N/mm² |
100 |
