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Babbitt Material Compositions

The following tables provide Babbitt Compositions for both ASTM B-23 and QQ-T-390 Specifications. Orion designed bearings are supplied with a high-tin lining according to the ASTM B-23 and QQ-T-390 Grade 2 Specifications.

ASTM B-23

CHEMICAL COMPOSITON ALLOY NUMBER (GRADE)
TIN-BASE BABBITT LEAD-BASE BABBITT
(%) 1 2 3 11 7 8 13 15
TIN 90 - 92 88 - 90 83 - 85 86 - 89 9.3 - 10.7 4.5 - 5.5 5.5 - 6.5 0.8 - 1.2
ANTIMONY 4.0 - 5.0 7.0 - 8.0 7.5 - 8.5 6 - 7.5 14.0 - 16.0 14.0 - 16.0 9.5 - 10.5 14.5 - 17.5
LEAD 0.35 0.35 0.35 0.5 remainder remainder remainder remainder
COPPER 4.0 - 5.0 3.0 - 4.0 7.5 - 8.5 5.0 - 6.5 0.5 0.5 0.5 0.5
IRON 0.08 0.08 0.08 0.08 0.1 0.1 0.1 0.1
ARSENIC 0.10 0.10 0.10 0.10 0.30 - 0.60 0.30 - 0.60 0.25 0.8 - 1.4
BISMUTH 0.08 0.08 0.08 0.08 0.1 0.1 0.1 0.1
ZINC 0.005 0.005 0.005 0.005 0.005 0.005 0.005 0.005
ALUMINUM 0.005 0.005 0.005 0.005 0.005 0.005 0.005 0.005
CADMIUM 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05
TOTAL ELEMENTS 99.8 99.8 99.8 99.8

QQ-T-390

CHEMICAL COMPOSITON ALLOY NUMBER (GRADE)
TIN-BASE BABBITT LEAD-BASE BABBITT
(%) 1 2 3 4 5 6 7 10 11 13
TIN 90 - 92 88 - 90 83 - 85 80.5 - 82.5 61.0 - 63.0 4.5 - 5.5 9.3 - 10.7 0.75 - 1.25 9.0 - 11.0 4.0 - 6.0
ANTIMONY 4.0 - 5.0 7.0 - 8.0 7.5 - 8.5 12.0 - 14.0 9.5 - 10.5 14.0 - 16.0 14.0 - 16.0 14.5 - 17.5 11.5 - 13.5 8.0 - 10.0
LEAD 0.35 0.35 0.35 0.25 24.0 - 26.0 79.0- 81.0 74.0 - 76.0 78.0 - 83.0 74.0 - 79.0 83.0 - 88.0
COPPER 4.0 - 5.0 3.0 - 4.0 7.5 - 8.5 5.0 - 6.0 2.5 - 3.5 0.50 0.50 0.60 0.40 - 0.60 0.50
IRON 0.08 0.08 0.08 0.08 0.08 0.10 0.10 0.10 0.10 0.10
ARSENIC 0.10 0.10 0.10 0.10 0.15 0.20 0.60 0.8 - 1.4 0.20 0.20
BISMUTH 0.08 0.08 0.08 ** ** ** ** ** ** **
ZINC 0.005 0.005 0.005 0.005 0.005 0.005 0.005 0.005 0.005 0.005
ALUMINUM 0.005 0.005 0.005 0.005 0.005 0.005 0.005 0.005 0.005 0.005
OTHER ELEMENTS 0.10 0.10 0.10 0.10 0.30 0.50 0.50 0.50 0.50 0.75