MaterialCharacteristics

Product Category
1: Oil-impregnated bearing
Copper-based, iron-based and iron , copper-based
High-speed and high wear-resistant bearings
2: Structural parts
Copper-based, iron-based and iron & copper-based
3: Copper alloy powder

Alloy elements in bearing material and density classification provision

Alloy element Brand logo chemical compositions（%） physical-mechanical property
Fe C C Cu Sn Zn Pb Miscell aneous Oil content % Oil density g/cm3 Radial pressing dent kgf/mm2 Superficial hardness HB
Copper-stannum-zinc-lead?/div> FZ2170 <0.5 - 0.5-2.0 more 5-7 5-7 2-4 1.5 =18 6.6-7.2 >15 20-50
FZ2175 =12 >7.2-7.8 >20 30-60

 Bearing material: iron, iron-copper, iron-bronze, iron-carbon- graphite

Parameter Symbol Unit Iron Iron-copper Iron-bronzea Iron-carbon- graphitea  
Codeb Codeb Codeb Codeb
chemical compositions Cc Cu Fu Sn Graphite Summation of other elements，max. -F-00 -K170 -F-00 -K220 -F-00C2 -K200 -F-00C2 -K250 -F-03C36T -K90 -F-03C36T -K120 -F-03C45T K-70 -F-03C45T K-100 -F-03G3 -K70 -F-03G3 -K80
  % % % % % % 0.3 - more - - 2 0.3 - more - - 2 0.3 1-4 more - - 2 0.3 1-4 more - - 2 0.5 34-38 more 3.5-4.5 0.3-1.0 2 0.5 34-38 more 3.5-4.5 0.3-1.0 2 0.5 43-47 more 4.5-5.5 <1.0 2 0.5 43-47 more 4.5-5.5 <1.0 2 0.5 - more - 2.0-3.5 2 0.5 - more - 2.0-3.5 2 Nominal Value
Opening Porosity P % 22 17 22 17 24 19 24 19 20 13
Radial pressing Dent strength，min. K MPa 170 220 200 250 90-265 120-345 70-245 100-310 70-175 80-210
(different status   g/cm3 5.8 6.2 5.8 6.2 5.8 6.2 5.6 6.0 5.6 6.0 d d
Linear expansion factor(d)   10-6k-1 12 12 12 12 14 14 14 14 12 12
a. the given scope of radial pressing dent strength value indicates that a balance must be maintained between carbide carbon and free graphite. b. All materials can impregnate lubricants. c. iron phase only. d. Reference value

copper, bronze-graphite materials for bearing

Parameter Symbol Unit Iron Iron-copper Iron-bronzea Iron-carbon- graphitea  
Codeb Codeb Codeb Codeb
chemical compositions Cc Cu Fu Sn Graphite Summation of other elements，max. -F-00 -K170 -F-00 -K220 -F-00C2 -K200 -F-00C2 -K250 -F-03C36T -K90 -F-03C36T -K120 -F-03C45T K-70 -F-03C45T K-100 -F-03G3 -K70 -F-03G3 -K80
  % % % % % % 0.3 - more - - 2 0.3 - more - - 2 0.3 1-4 more - - 2 0.3 1-4 more - - 2 0.5 34-38 more 3.5-4.5 0.3-1.0 2 0.5 34-38 more 3.5-4.5 0.3-1.0 2 0.5 43-47 more 4.5-5.5 1.0 2 0.5 43-47 more 4.5-5.5 1.0 2 0.5 - more - 2.0-3.5 2 0.5 - more - 2.0-3.5 2 Nominal Value
Opening Porosity P % 22 17 22 17 24 19 24 19 20 13
Radial pressing Dent strength，min. K MPa 170 220 200 250 90-265 120-345 70-245 100-310 70-175 80-210
(different status   g/cm3 5.8 6.2 5.8 6.2 5.8 6.2 5.6 6.0 5.6 6.0 d d
Linear expansion factor(d)   10-6k-1 12 12 12 12 14 14 14 14 12 12
a. the given scope of radial pressing dent strength value indicates that a balance must be maintained between carbide carbon and free graphite. b. All materials can impregnate lubricants. c. iron phase only. d. Reference value

iron-based materials for structural parts: iron and carbon steel

Parameter Symbol Unit Iron carbon - steel  
Code Code
Chemical composition»¯ºÏ Cu Fe Radial pressing Dent strength , density£¬max. -F
-00
-
100 		-F
-00
-
120 		-F
-00
-
140 		-F
-05
-
140 		-F
-05
-
170 		-F
-05
-
340
Ha 		-F
-05
-
480
Ha 		-F
-05
-
210 		-F
-08
-
240 		-F
-08
-
45
0Hb 		-F
-08
-
550
Hb
  % % % % £¼0.3 - more 2 £¼0.3 - more 2 £¼0.3 - more 2 0.3-0.6 - more 2 0.3-0.6 - more 2 0.3-0.6 - more 2 0.3-0.6 - more 2 0.6-0.9 - more 2 0.6-0.9 - more 2 0.6-0.9 - more 2 0.6-0.9 - more 2 Nominal Value
Tensile yield strength min. Rp0.2 Mpa 100 120 140 140 70     210 240    
Ultimate tensile strength min. Pm Mpa           340 480     450 550
Superficial
hardness		   HV5 62 75 85 90 120 280
HV
10 		300
HV
10 		120 140 320
HV
10 		360
HV
10 		consult
luo 60
HR
F 		70
HR
F 		80
HR
F 		40
HR
B 		60
HR
B 		20
HR
C 		25
HR
C 		60
HR
B 		70
HR
B 		28
HR
C 		33
HR
C
Density   g/cm3 6.7 7.0 7.3 6.6 7.0 6.6 7.0 6.6 7.0 6.6 7.0
Tensile strength Rm Mpa 170 210 260 220 275 410 550 290 390 520 620
Tensile yield strength Rp0.2 Mpa 120 150 170 160 220 a a 240 260 c c
Elongation A25 % 3 4 7 1 2 nmd nmd 1 1 nmd nmd
Young's modulus   GPa 120 140 160 115 140 115 140 115 140 115 140
Poisson ratio     0.25 0.27 0.28 0.25 0.27 0.25 0.27 0.25 0.27 0.25 0.27
Fracture-free impact energy   J 8 24 47 5 8 4 5 5 7 5 7
Compressive yield strength (0.1%) Mpa 120 125 130 210 225 300 420 290 290 400 550
Transverse rupture strength   Mpa 340 500 660 440 550 720 970 510 690 790 950
90% survival rat at Fatigue point e   Mpa 65 80 100 80 105 160 220 120 170 210 260
Note: machining property of these materials can be improved through adding additives, and the properties listed in the table will remain unchanged.
a¡¢At 850¡æ, heat for 30 minutes in an atmosphere with 0.5% carbon for austenitizing, and oil quench it, then temper at 180¡æ for 1 hour. b¡¢At 850¡æ, heat for 30 minutes in an atmosphere with 0.8% carbon for austenitizing, and oil quench it, then temper at 180¡æ for 1 hour. c¡¢The tensile yield strength and the ultimate tensile strength for heat-treated materials are approximately equal. d¡¢mm=no measurement e¡¢The survival rate determined through swivel bending test is 90% of the fatigue endurance life, so process the machining sample as per ISO3928£¨GB/T4337£©.