Wear Resistance Data

RTP 800 Series Acetal (POM) Compounds — Metric Units

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Wear factor (K) is an indication of a materials resistance to wear as a function of the volume of material lost, force (load) and velocity at the wear interface and time. It is often determined using a "thrust washer" wear testing apparatus per ASTM D3702 in which a molded plastic specimen is rotated against a substrate thrust washer under set pressure and velocity conditions.

A wear factor is calculated with the equation W=K*F*V*T. In this equation W is wear volume (mm3), K is wear factor (mm3/N m)10-8, F is force (N), V is velocity (m/sec), and T is elapsed time (sec).

A material with a lower wear factor (K) has greater resistance to wear and these values are useful for material comparison purposes.


[ View wear data in english units | Return to wear data resin list ]

Plastic vs Plastic

Test Conditions
PV 35
Load 0.90
Speed 0.25
Rotating Sample vs Stationary Sample µ
Dynamic
RTP Product Wear
Factor
RTP Product Wear
Factor
RTP 800
POM
Unfilled
26 vs RTP 200
PA 6/6
Unfilled
265 0.24
RTP 800
POM
Unfilled
122 vs RTP 205
PA 6/6
30% Glass Fiber
459 0.22
RTP 800
POM
Unfilled
122 vs RTP 205 TFE 15
PA 6/6
30% Glass Fiber
15% PTFE
213 0.25
RTP 800
POM
Unfilled
26 vs RTP 300
PC
Unfilled
82 0.47
RTP 800 TFE20
POM
20% PTFE
8 vs RTP 200
PA 6/6
Unfilled
22 0.10
RTP 800 TFE 20
POM
20% PTFE
81 vs RTP 205
PA 6/6
30% Glass Fiber
300 0.24
RTP 800 TFE 20
POM
20% PTFE
137 vs RTP 205 TFE 15
PA 6/6
30% Glass Fiber
15% PTFE
237 0.20
RTP 800 TFE 20
POM
20% PTFE
12 vs RTP 285 TFE 15
PA 6/6
30% Carbon Fiber
15% PTFE
27 0.23
RTP 800 TFE 20
POM
20% PTFE
97 vs RTP 300
PC
Unfilled
199 0.42
RTP 800 TFE 20
POM
20% PTFE
52 vs RTP 205 TFE 15
PA 6/6
30% Glass Fiber
15% PTFE
127 0.27
RTP 800 TFE 20
POM
20% PTFE
89 vs RTP 300 TFE 15

177 0.42
RTP 800 TFE 20
POM
20% PTFE
16 vs RTP 200 TFE 20
PA 6/6
20% PTFE
97 0.32
RTP 805 TFE 15
POM
30% Glass Fiber
15% PTFE
7 vs RTP 200 TFE 20
PA 6/6
20% PTFE
196 0.14
RTP 805 TFE 15
POM
30& Glass Fiber
15% PTFE
447 vs RTP 205 TFE 15
PA 6/6
30% Glass Fiber
15% PTFE
490 0.24
RTP 805 TFE 15
POM
30% Glass Fiber
15% PTFE
187 vs RTP 205 D TFE 15
PA 6/12
30% Glass Fiber
15% PTFE
348 0.20
RTP 805 TFE 15
POM
30% Glass Fiber
15% PTFE
871 vs RTP 305 TFE 15
PC
30% Glass Fiber
15% PTFE
1258 0.28
RTP 805 TFE 15
POM
30% Glass Fiber
15% PTFE
606 vs RTP 805 TFE 15
POM
30% Glass Fiber
15% PTFE
261 0.28
RTP 805 TFE 15
POM
30% Glass Fiber
15% PTFE
173 vs RTP 1002
PBT
15% Glass Fiber
438 0.23
RTP 899 X 88199
POM
PTFE Lubricated
Silicone Lubricated
UL94 HB
2346 vs RTP 899 X 88199
POM
PTFE Lubricated
Silicone Lubricated
UL94 HB
656 0.36
RTP 899 X 93812
POM
Glass Fiber Reinforced
Internally Lubricated
39 vs RTP 899 X 93924
POM
PFPE Lubricated
PTFE Lubricated
30 0.30
RTP 899 X 93812
POM
Glass Fiber Reinforced
Internally Lubricated
74 vs RTP 800
POM
Unfilled
2120 0.39
RTP 899 X 93924
POM
PFPE Lubricated
PTFE Lubricated
147 vs RTP 899 X 88199
POM
PTFE Lubricated
Silicone Lubricated
UL94 HB
254 0.23
RTP 899 X 93924
POM
PFPE Lubricated
PTFE Lubricated
61 vs RTP 899 X 93924
POM
PFPE Lubricated
PTFE Lubricated
43 0.25
RTP 899 X 93924
POM
PFPE Lubricated
PTFE Lubricated
4 vs RTP 200 TFE 20
PA 6/6
20% PTFE
87 0.27
  • Thrust washer testing conducted per ASTM D 3702
  • Wear Factor: (mm3/N m)10-8
  • PV: KPa m/sec
  • Load: N
  • Speed: m/sec

Plastic vs Steel

RTP Product Tested vs. Steel (1018 C)
PV 70
Load 1.80
Speed 0.25
PV 175
Load 2.25
Speed 0.50
PV 350
Load 9.00
Speed 0.25
Wear
Factor
µ
Dynamic
Wear
Factor
µ
Dynamic
Wear
Factor
µ
Dynamic
RTP 800
Unfilled POM
187 0.40 205 0.42 302 0.44
RTP 800 SI 2
2% Silicone
84 0.43 93 0.41 121 0.51
RTP 800 TFE 10
10% PTFE
171 0.68 26 0.29 14 0.18
RTP 800 TFE 15
15% PTFE
135 0.26 44 0.34    
RTP 800 TFE 20
20% PTFE
165 0.25 28 0.34    
RTP 800 TFE 10 SI 2
10% PTFE
2% Silicone
18 0.29 12 0.24 18 0.14
RTP 805 TFE 15
30% Glass Fiber
15% PTFE
143 0.46 271 0.36 1743 0.34
RTP 882 TFE 10
15% Carbon Fiber
10% PTFE
322 0.30 440 0.40    
RTP 800 AR 10 TFE 15
10% Aramid Fiber
15% PTFE
46 0.18 16 0.25 6 0.19
RTP 899 X 93924
PFPE Lubricated
PTFE Lubricated
28 0.44 86 0.37 157 0.46
  • Thrust washer testing conducted per ASTM D 3702
  • Wear Factor: (mm3/N m)10-8
  • PV: KPa m/sec
  • Load: N
  • Speed: m/sec

Comparing competitive data note

  • RTP Company reports Wear Factors per unit Force (KF) with units of (mm3/N m)10-8. This is the industry standard way to calculate and report Wear Factor. Some suppliers report Wear Factors per unit Pressure (KP) with units of (mm3/Pa m)10-11. This value is arrived at by dividing the KF by the contact surface of the test specimen 0.00023 or 2.3-4 m2. As result of this reporting discrepency, RTP Company's Wear Factor values appear to be significantly higher. For example a KP of 3 (mm3/Pa m)10-11 would be equal to KF of 3/0.00023 = 13 (mm3/N m)10-8.

No information supplied by RTP Company constitutes a warranty regarding product performance or use. Any information regarding performance or use is only offered as suggestion for investigation for use, based upon RTP Company or other customer experience. RTP Company makes no warranties, expressed or implied, concerning the suitability or fitness of any of its products for any particular purpose. It is the responsibility of the customer to determine that the product is safe, lawful and technically suitable for the intended use. The disclosure of information herein is not a license to operate under, or a recommendation to infringe any patents.