Lead Babbitt, Tin Babbitt, Bearing Metal, Zinc Babbitt

Lead Babbitt for commercial, industrial & other custom applications, in-stock for bulk delivery now.

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 (%)	1	2	3	11
Tin	90-92	88-90	83-85	86-89
Antimony	4.0-5.0	7.0-8.0	7.5-8.5	6.0-7.5
Lead	0.35	0.35	0.35	0.35
Copper	4.0-5.0	3.0-4.0	7.5-8.5	5.0-6.5
Iron	0.08	0.08	0.08	0.08
Arsenic	0.1	0.1	0.1	0.1
Bismuth	0.08	0.08	0.08	0.08
Zinc	0.005	0.005	0.005	0.005
Aluminum	0.005	0.005	0.005	0.005
Cadmium	0.05	0.05	0.05	0.05
Total Elements	99.8	99.8	99.8	99.8

Chemical Composition (Lead-Base Babbitt)	Alloy Number (Grade)
Percentage (%)	7	8	13	15
Tin	9.3-10.7	4.5-5.5	5.5-6.5	0.8-1.2
Antimony	14.0-16.0	14.0-16.0	9.5-10.5	14.5-17.5
Lead	remainder	remainder	remainder	remainder
Copper	0.5	0.5	0.5	0.5
Iron	0.1	0.1	0.1	0.1
Arsenic	0.30-0.60	0.30-0.60	0.25	0.8-1.4
Bismuth	0.1	0.1	0.1	0.1
Zinc	0.005	0.005	0.005	0.005
Aluminum	0.005	0.005	0.005	0.005
Cadmium	0.05	0.05	0.05	0.05

ASTM B-560-79 Specification

Chemical Composition	Alloy Number (Grade)
Percentage (%)	1	2	3
Tin	90-93	90-93	95-98
Antimony	6.0-8.0	5.0-7.50	1.0-3.0
Lead	0.05 Max	0.05 Max	0.05 Max
Copper	.025-2.0	1.5-3.0	1.0-2.0
Iron	0.015	0.015	0.015
Arsenic	0.05	0.05	0.05
Bismuth	0	0	0
Zinc	0.005	0.005	0.005
Aluminum	–-	0	0
Cadmium	–-	0	0
Total Elements	99.8	99.8	99.8

QQ-T-390 Specification

Chemical Composition (Tin-Base Babbitt)	Alloy Number (Grade)
Percentage (%)	1	2	3	4	5
Tin	90-92	88-90	83-85	80.5-82.5	61-63
Antimony	4-5	7-8	7.5-8.5	12-14	9.5-10.5
Lead	0.35	0.35	0.35	0.25	24-26
Copper	4-5	3-4	7.5-8.5	5-6	2.5-3.5
Iron	0.08	0.08	0.08	0.08	0.08
Arsenic	0.1	0.1	0.1	0.1	0.15
Bismuth	0.08	0.08	0.08	**	**
Zinc	0.005	0.005	0.005	0.005	0.005
Aluminum	0.005	0.005	0.005	0.005	0.005
Cadmium	0.05	0.05	0.05	0.05	0.05
Other Elements	0.1	0.1	0.1	0.1	0.3

Chemical Composition (Lead-Base Babbitt)	Alloy Number (Grade)
Percentage (%)	6	7	10	11	13
Tin	4.5-5.5	9.3-10.7	.75-1.25	9-11	4-6
Antimony	14-16	14-16	14.5-17.5	11.5-13.5	8-10
Lead	79-81	74-76	78-83	74-79	83-88
Copper	0.5	0.5	0.6	0.4-0.6	0.5
Iron	0.1	0.1	0.1	0.1	0.1
Arsenic	0.2	0.6	0.8-1.4	0.2	0.2
Bismuth	**	**	**	**	**
Zinc	0.005	0.005	0.005	0.005	0.005
Aluminum	0.005	0.005	0.005	0.005	0.005
Cadmium	0.05	0.05	0.05	0.05	0.05
Other Elements	0.5	0.5	0.5	0.5	0.75

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