Babbitt Alloys
| Industry Names | ASTM Grade | Comments | Sn | Pb | Cu | Sb | As | oth. | Yield Point, psiD (MPa) 68°F(20°C) |
Yield Point, psiD (MPa) 212°F(100°C) |
Johnson's Apparent Elastic Limit psi (MPa)E 68°F(20°C) |
Johnson's Apparent Elastic Limit psi (MPa)E 212°F(100°C) |
Melting Point °F (°C) |
Proper Pouring Temp °F (°C) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| No. 1, DuraKapp™ #1 | 1 | 90-92 | 0.35 (max) | 4-5 | 4-5 | 4400 (30.3) | 2650 (18.3) | 2450 (16.9) | 1050 (7.2) | 433 (223) | 825 (441) | |||
| Nickel Genuine, DuraKapp™ #2 | 2 | Most Common and industry standard for bearing lining. | 88-90 | 0.35 (max) | 3-4 | 7-8 | 6100 (42.0) | 3000 (20.6) | 3350 (23.1) | 1100 (7.6) | 466 (241) | 795 (424) | ||
| Super Tough, DuraKapp™ #3 | 3 | 83-85 | 0.35 (max) | 7.5-8.5 | 7.5-8.5 | 6600 (45.5) | 3150 (21.7) | 5350 (36.9) | 1300 (9.0) | 464 (240) | 915 (491) | |||
| Grade 4, DuraKapp™ #4 | 4 | 74-76 | 9.3-10.7 | 2.5-3.5 | 11-13 | |||||||||
| Grade 11, DuraKapp™ #11 | 11 | 86-89 | 0.35 (max) | 5-6.5 | 6-7.5 | |||||||||
| Durite, DuraKapp™ #15 | 15 | .8-1.2 | 79.9-83.9 | 14.5-17.5 | .8-1.4 | |||||||||
| Royal, DuraKapp™ #8 | 8 | 4.5-5.5 | 77.9-81.2 | 14-16 | .3-.6 | 3400 (23.4) | 1750 (12.1) | 2650 (18.3) | 1200 (8.3) | 459 (237) | 645 (341) | |||
| Grade 13, DuraKapp™ #13 | 13 | 5.5-6.5 | 82.5-85 | 9.5-10.5 | .25 (max) | |||||||||
| Heavy Pressure, DuraKapp™ #7 | 7 | 9.3-10.7 | 72.5-76.5 | 14-16 | .3-.6 | 3550 (24.5) | 1600 (11.0) | 2500 (17.2) | 1350 (9.3) | 464 (240) | 640 (338) |
| D The values of yield point were taken from stress-strain curves at deformation of 0.125% of gauge length |
| E Johnson's apparent elastic limit is taken as the unit stress at the point where the slope of the tangent to the curve is 2/3 times its slope in origin |
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