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Lead Babbitt, Tin Babbitt, Bearing Metal, Zinc Babbitt

Lead Babbitt, No. 4 Babbitt, Universal Babbitt, Tin Babbitt, Genuine Babbitt and custom Babbitt from Nuclead

Babbitt Metals

  • No. 4 Babbitt – a common hardware grade used for various non-critical, low speed applications
  • Universal Babbitt – mainly for medium speed applications, such as unidirectional and moderate cyclic loads
  • Genuine Babbitt – virtually lead free; a high tin content babbitt typically used for high speed and low pressure applications
  • Other special types and grades are available including – Bearing Babbitt, Zamak (Zamac), Kirksite, Cerrobend, Wood’s alloy, Lipowitz’s alloy, Pewtalloy, MCP 158 and Bendalloy
Nuclead can make any custom babbitt. Supply us with your specifications and we’ll fabricate and certify to your special needs.
Sharp Manufacturing can machine and fabricate any materials to your custom specifications.

Compositions

The following tables provide Babbitt Compositions for ASTM B-23, QQ-T-390 and ASTM B560-79 specifications:

ASTM B-23 Specification

Chemical Composition
(Tin-Base Babbitt)
Alloy
Number
(Grade)
   
Percentage (%)12311
Tin90-9288-9083-8586-89
Antimony4.0-5.07.0-8.07.5-8.56.0-7.5
Lead0.350.350.350.35
Copper4.0-5.03.0-4.07.5-8.55.0-6.5
Iron0.080.080.080.08
Arsenic0.10.10.10.1
Bismuth0.080.080.080.08
Zinc0.0050.0050.0050.005
Aluminum0.0050.0050.0050.005
Cadmium0.050.050.050.05
Total Elements99.899.899.899.8
Chemical Composition
(Lead-Base Babbitt)
Alloy
Number
(Grade)
   
Percentage (%)781315
Tin9.3-10.74.5-5.55.5-6.50.8-1.2
Antimony14.0-16.014.0-16.09.5-10.514.5-17.5
Leadremainderremainderremainderremainder
Copper0.50.50.50.5
Iron0.10.10.10.1
Arsenic0.30-0.600.30-0.600.250.8-1.4
Bismuth0.10.10.10.1
Zinc0.0050.0050.0050.005
Aluminum0.0050.0050.0050.005
Cadmium0.050.050.050.05

ASTM B-560-79 Specification

Chemical CompositionAlloy
Number
(Grade)
  
Percentage (%)123
Tin90-9390-9395-98
Antimony6.0-8.05.0-7.501.0-3.0
Lead0.05 Max0.05 Max0.05 Max
Copper.025-2.01.5-3.01.0-2.0
Iron0.0150.0150.015
Arsenic0.050.050.05
Bismuth000
Zinc0.0050.0050.005
Aluminum–-00
Cadmium–-00
Total Elements99.899.899.8

QQ-T-390 Specification

Chemical Composition
(Tin-Base Babbitt)
Alloy
Number
(Grade)
    
Percentage (%)12345
Tin90-9288-9083-8580.5-82.561-63
Antimony4-57-87.5-8.512-149.5-10.5
Lead0.350.350.350.2524-26
Copper4-53-47.5-8.55-62.5-3.5
Iron0.080.080.080.080.08
Arsenic0.10.10.10.10.15
Bismuth0.080.080.08****
Zinc0.0050.0050.0050.0050.005
Aluminum0.0050.0050.0050.0050.005
Cadmium0.050.050.050.050.05
Other Elements0.10.10.10.10.3
Chemical Composition
(Lead-Base Babbitt)
Alloy
Number
(Grade)
    
Percentage (%)67101113
Tin4.5-5.59.3-10.7.75-1.259-114-6
Antimony14-1614-1614.5-17.511.5-13.58-10
Lead79-8174-7678-8374-7983-88
Copper0.50.50.60.4-0.60.5
Iron0.10.10.10.10.1
Arsenic0.20.60.8-1.40.20.2
Bismuth**********
Zinc0.0050.0050.0050.0050.005
Aluminum0.0050.0050.0050.0050.005
Cadmium0.050.050.050.050.05
Other Elements0.50.50.50.50.75

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