产品名称：AFM20
产品材质：非石棉，无石棉垫片
产品应用：发动机，油泵，水泵，压缩机
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技术参数：

Material	AFM 20 is composed of a pegged and galvanized steel core. An asbestos-free soft material compound is applied to both sides of the core containing aramide fibres, inorganic fillers and high-grade binder elastomers.
Properties	AFM 20 shows good stress resistance and conforms well to sealing faces.
Application	For cylinder head gaskets in mid-range internal combustion engines, for other sealing joints exposed to mechanical and thermal stress, e.g. intake and exhaust manifolds, transmission flanges and high-pressure pumps.
Surfaces	Special coatings applied over the entire surface or parts thereof are available for special applications, e.g. an anti-stick coating on a PTFE basis (also possible on materials in roll form) or a QJ coating on a silicone basis which improves micro-sealing (only available as a finished gasket). Screen printing with various elastomers is also possible.
Technical Data (Nominal thickness 1.30 mm)	Weight per surface unit	kg/m²	3.7
	Residual stress acc. to DIN 52 913
	16 h, 300 °C	N/mm²	> 37
	Compressibility and recovery acc. to ASTM F 36, procedure J
	compressibility	%	6 - 14
	recovery	%	> 55
	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 C
	increase in thickness	%	< 5
	Operating temperature
	maximum	°C	400
	Surface pressure
	maximum at 300 °C	N/mm²	100

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