acetron, acetal, pom h, derlin , tecaform

Acetron POM-H Delrin®

Delrin AF Blend is a unique thermoplastic material for use in moving parts in which low friction and long wear life are important. It is a combination of PTFE fibers uniformly dispersed in Delrin acetal resin. This combination offers better wear characteristics than unfilled Delrin.

Delrin AF Blend, supplied as a 2:1 blend of Delrin AF100 and Delrin 150 resins, has excellent sliding/friction properties. Bearings made of Delrin AF Blend can operate at higher speeds while exhibiting reduced wear. These bearings are also essentially free of slip-stick behavior because the static and dynamic coefficient of friction are closer than with most plastics.

Delrin AF Blend retains 90% of the strength that is inherent in unmodified Delrin acetal. Some properties are changed due to the addition of the softer PTFE fiber. The natural color of Delrin AF Blend is dark brown.

Delrin® AF 100

Unblended Delrin AF, offers a slightly higher limiting PV and lower coefficient of friction due to additional PTFE content. This added PTFE typically decreases the wear capability and impact strength. Delrin AF 100 is available on a custom basis.

POM-H Polyacetal rods - Delrin

Acetal H (Delrin) Extruded Black Rod is a homopolymer manufactured from Delrin resin. Delrin is a semi-crystalline, thermoplastic with product characteristics including excellent dimensional stability, low moisture absorption, and high wear resistance.

POM-H rods offer slightly higher tensile and impact strength in comparison to Acetal Copolymer Rod. (Natural Delrin rod conforms to FDA21 CFR 177.2470). The long term service temperature range of Delrin Rod is from -50°C to 90°C and has a short term maximum service temperature of 150°C.

Acetal H rods (Delrin®) also give slightly less chemical resistance than copolymer acetal. However, polyacetal POM-H rods from Delrin® are ideal for applications such as small diameter, thin-walled bushings that would benefit from the additional strength and rigidity of homopolymer acetal. Typical fields of application for POM-H - Acetal H Rod include mechanical engineering, vehicle construction, and precision engineering.

Delrin POM-H Rod is a material well suited to billeting, precision grinding, and CNC turning. Similar materials available from us include Acetal C Extruded Natural Rod and Acetal C Extruded Black Rod. If you have a requirement for machined or finished Delrin components please ask our team for more information.

MECHANICAL PROPERTIES	VALUE	UNIT	PARAMETER	NORM
Modulus of elasticity (tensile test)	3400	MPa	1mm/min	DIN EN ISO 527-2
Tensile strength	79	MPa	50mm/min	DIN EN ISO 527-2
Tensile strength at yield	79	MPa	50mm/min	DIN EN ISO 527-2
Elongation at yield	37	%	50mm/min	DIN EN ISO 527-2
Elongation at break	45	%	50mm/min	DIN EN ISO 527-2
Flexural strength	106	MPa	2mm/min, 10 N	DIN EN ISO 178
Modulus of elasticity (flexural test)	3600	MPa	2mm/min, 10 N	DIN EN ISO 178
Compression strength	19/33/69	MPa	1% / 2% / 5%	EN ISO 604
Compression modulus	2700	MPa	5mm/min, 10 N	EN ISO 604
Impact strength (Charpy)	n.b.	kJ/m2	max. 7,5J	DIN EN ISO 179-1eU
Notched impact strength (Charpy)	15	kJ/m2	max. 7,5J	DIN EN ISO 179-1eA
Ball indentation hardness	185	MPa		ISO 2039-1

THERMAL PROPERTIES	VALUE	UNIT	PARAMETER	NORM
Glass transition temperature	-60	C		DIN EN ISO 11357
Melting temperature	182	C		DIN EN ISO 11357
Service temperature	150	C	short term	NN
Service temperature	110	C	long term	NN
Thermal expansion (CLTE)	12	10-5*1/K	23-60°C, long.	DIN EN ISO 11359-1;2
Thermal expansion (CLTE)	13	10-5*1/K	23-100°C, long.	DIN EN ISO 11359-1;2
Thermal conductivity	0.43	W/(k*m)		ISO 22007-4:2008
Specific heat	1.3	J/(g*K)		ISO 22007-4:2008

ELECTRICAL PROPERTIES	VALUE	UNIT	PARAMETER	NORM
surface resistivity	1014	O		DIN IEC 60093

OTHER PROPERTIES	VALUE	UNIT	PARAMETER	NORM
Water absorption	0.1	%	24h / 96h (23°C)	DIN EN ISO 62
Resistance to hot water/ bases	-	-		-
Resistance to weathering	-	-		NN
Flammability (UL94)	HB	-	corresponding to	DIN IEC 60695-11-10;

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