MET 90

ALLOY SELECTION

Selecting Your Alloy

Alloy Selection Chart

M-GP#7

Copper 83%

Lead 7%

Tin 7%

Zinc 3 %

CDA932

13-14

30

Selecting the proper material is crucial to successful design of new bearings.  Factors of the application such as load speeds and temperature must be known for proper alloy selection.

Bronze is normally used as the base material for Spadone Alfa bearings.  The chart below lists a few of the common bearing alloys used in bearing applications.  Each alloy is listed with its specific properties.  These properties should only be used as a guide when designing a bearing for your application.

Bronze alloys may not suitable for all applications.  Especially those that involve environmental concerns, extreme temperature fluctuations and loads that exceed the compressive strengths of bronze.  Other materials with suitable properties can be selected.  These would include cast iron, tool steels, stainless steel and other materials that have provided excellent operating results. 

We recommend that you review the details of your application with our staff.

Approximate

Composition

Compressive Strength

.001 set 1,000 psi

Tensile Strength

1,000 psi (min)

Yield Strength

1,000 psi (min)

14

% Elogation

In inches

(min)

Brinell

Hardness

Application

15

65

(500 kg)

Used for Medium load & temperature applications. General utility alloy. Conforms to ASTM B-271, B-505,B-584, SAE 660

Speed: 250 SFPMLoad: 1,000 psiTemp: 450 FP.V.: 20,000

Widely used bearing alloy.  Good anti-friction & wear properties.  Medium loads & temperature.  Good resistance to mild acids & paper mill sulfite liquor.  Conforms to SAE 64 - ASTM-B-22-C, B-271 B-584

M-GP#5

Copper 80%

Lead 10%

Tin 10%

CDA937

13

30

12

15

60

(500 kg)

Speed: 250 SFPMLoad: 1,000 psiTemp: 450 FP.V.: 30,000

Heavy duty alloy.  Excellent for heavy loads and shock conditions.  Exhibits high resistance to corrosion.  Similar to ASTM B-22-D, B584, B 271 or SAE 62.

Extremely tough alloy with ex bearing characteristics. High resistance to abrasion & corrosion.  Used for continuous heavy duty applications.  Similar to SAE-701B, ASTM B-148, Alloy 9C, B-505 and B-271.

Most widely used alloy for one piece Bridge bushings & Plates.  For slow speeds & extreme loads ranging from 3,500 (running) to 8,000 (static) psi.  Conforms to ASTM B-584, SAE 430B, ASTM B22 Alloy.

Speed: 250 SFPMLoad: 2,000 psiTemp: 550 FP.V.: 30,000

Speed: 100 SFPMLoad: 3,500 psiTemp: 500 FP.V.: 50,000

Speed:  25 SFPMLoad: 3,500 psiTemp: 600 FP.V.: 70,000

M-G#20

Copper 88%

Tin 10%

Zinc 2%

CDA905

M-HD#8

Copper 83%

Aluminum 11%

Nickel 2%

Iron 4%

CDA954

B-110

Copper 65%

Aluminum 6%

Iron 3%

Zinc 22%

Manganese 4%

CDA863

15

40

18

60

22

75

110

30

60

20

12

12

170

(3000 kg)

75

(500 kg)

60

(500 kg)

225

(3000 kg)

800-959-2529

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