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Bronze and Bronze MoS2 - Fortified PTFE
 
Property (1) Units ASTM Method 60% PTFE
40% Bronze		 50% PTFE
50% Bronze		 40% PTFE
60% Bronze		 30% PTFE
70% Bronze		 20% PTFE
80% Bronze		 55% PTFE
40% Bronze
5% MoS2		 40% PTFE
55% Bronze
5% MoS2		 30% PTFE
65% Bronze
5% MoS2
Specific Gravity
Theoretical
Measured
 gr / cc D1457-62
3.12
3.05
3.49
3.35
3.97
3.78
4.62
4.25
5.47
4.70
3.25
3.14
3.90
3.67
4.51
4.16
Tensile
Strength 		MD
CD		 psi D1457-62 2350
2850		 2300
2700		 2200
2600		 1600
1700		 1500
1700		 2000
2700		 1850
2300		 1800
2200
Elongation MD
CD		 % D1457-62 2350
2850		 2300
2700		 2200
2600		 1600
1700		 1500
1700		 2000
2700		 1850
2300		 1800
2200
Deformation 78°F, 2000 psi, 24 hrs.
Total Def.

Perm Def.

500°F, 600 psi,
24 hrs.
Total Def.

Perm Def.

MD
CD
MD
CD


MD
CD
MD
CD		 % D621-59
(Modified)

8.6
7.0
4.4
3.1


28
26
13
12

6.6
5.3
2.7
2.2


21
18
10
9.2

4.8
3.7
1.9
1.4


13
12
7.1
6.3

3.0
2.2
1.1
0.8


7.3
6.3
4.3
3.8

1.6
1.1
0.5
0.4


3.2
2.7
2.1
1.9

7.8
6.2
3.5
3.0


17
17
10
8.8

4.6
3.6
1.9
1.7


11
10
5.6
4.8

2.8
2.2
1.1
1.0


6.6
6.2
3.1
2.8
Flexural Strength
1% Strain
3% Strain
 psi D790-59T
1400
2600
1700
2900
2000
3200
2400
3600
2700
3900
1600
2800
2100
3300
2500
3600
Flexural Modulus
(x 105)		     1.4 1.7 2.0 2.4 2.7 1.6 2.1 2.5
Compressive Strength
0.2% offset

1% Strain

5% Strain

Modulus x 104

MD
CD
MD
CD
MD
CD
MD
CD		 psi D695-54

1400
1300
1100
1000
2400
2300
1.1
1.0

1500
1500
1200
1150
2750
2700
1.2
1.1

1700
1700
1500
1500
3100
3100
1.6
1.6

2200
2200
1800
1800
3800
3800
2.0
2.0

2500
2500
2000
2000
4000
4000
2.2
2.2

1500
1400
1200
1150
2600
2450
1.2
1.1

1800
1700
1500
1450
3100
3000
1.5
1.5

2100
2000
1800
1700
4000
3900
1.8
1.8
Hardness-Shore D
Initial

15 Secs
MD
CD
MD
CD 		   
65
60
60
56
69
64
64
59
73
68
68
63
76
73
72
68
80
76
76
73
65
60
60
56
70
66
65
56
74
70
69
66
Coef. of Thermal Exp.
78°F to 200°F

300°F

400°F

500°F

MD
CD
MD
CD
MD
CD
MD
CD 		in/in/F D696-90

6.1
5.4
6.5
5.6
7.2
6.1
8.6
7.1

5.7
4.9
6.1
5.2
6.8
5.6
8.7
6.6

5.1
4.3
5.5
4.5
6.2
5.0
7.6
5.8

4.4
3.5
4.9
3.7
5.6
4.1
6.9
4.8

3.4
2.4
3.8
2.5
4.6
3.8
5.9
3.4

6.3
4.7
6.8
4.9
7.5
5.4
9.0
6.5

5.6
3.9
6.1
4.1
6.8
4.6
8.2
5.4

4.9
3.3
5.3
3.5
6.1
3.9
7.3
4.6
Thermal Conductivity BTU/hr/
sq.ft./F/in		 Cenco Fitch 4.3 5.0 5.8 6.6 7.5 4.3 5.0 6.0
Limiting PV
10 fpm

100 fpm

1000 fpm
   LPN Std.
7,500CF(2)
12,580OT(3)
10,500T
10,000CF

12,500T

10,500T
10,000CF

12,500T

13,000T
10,000CF

10,000T

15,500T
12,500T

10,000T

15,500T
10,000CF

12,500T

10,000T
12,500CF

12,500T

12,500T
15,000CF

12,500T

12,500T
Wear Factor
(K) x 10-10
Equilibrium
 in3-min.
lb-ft-hr		   5 5 5 6 20 5 5 5
Coefficient of friction
Static @ 33.33 psi
Dynamic @ 33.33 psi
150 fpm
   LPN Std.
0.05
0.13
0.06
0.13
0.07
0.13
0.07
0.13
0.14
0.18
0.07
0.13
0.08
0.13
0.10
0.15
Compression Ratio
Bulk Density
   LPN Std.
LPN Std.		 8.5
360		 6.3
530		 5.7
660		 5.5
780		 5.2
900		 6.6
480		 5.9
620		 5.6
740
Mold Shrinkage, typical % LPN Std. 3.0 1.8 1.6 1.3 0 2.6 1.8 0.8
Property (1) Units ASTM Method 60% PTFE
40% Bronze		 50% PTFE
50% Bronze		 40% PTFE
60% Bronze		 30% PTFE
70% Bronze		 20% PTFE
80% Bronze		 55% PTFE
40% Bronze
5% MoS2		 40% PTFE
55% Bronze
5% MoS2		 30% PTFE
65% Bronze
5% MoS2
 
 
1. Specimens preformed at 10,000 psi: sintered (SPI free sintering cycle).
2. Specimen cold flowed.
3. Temperature exceeded 300°F, measured 0.125 from interface. (Steel begins to turn blue).
 
This information is based on our experience to date and we believe it to be reliable. It is intended only as a guide for use at your discretion and risk. We cannot guarantee favorable results and assume no liability in connection with its use or the use of the products described. None of this information is to be taken as a license to operate under, or a recommendation to infringe, any patents.