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  1. DuraKapp™#1 Babbitt - 1 lb. Regular Bar
    DuraKapp™#1 Babbitt - 1 lb. Regular Bar
    $15.75
    ASTM B23 #1 - OEM matching refurbishment Tin Babbitt for high speed machinery, engines, and generators. 91Sn4.5Cu4.5Sb, nominal 1 lb. bars. VIEW PRODUCT
  2. DuraKapp™#1 Babbitt - 6 lb. Notch Bar
    DuraKapp™#1 Babbitt - 6 lb. Notch Bar
    $91.50
    ASTM B23 #1 - OEM matching refurbishment Tin Babbitt for high speed machinery, engines, and generators. 91Sn4.5Cu4.5Sb, nominal 6 lb. notch bars. VIEW PRODUCT
  3. DuraKapp™#1 Babbitt - 35 lb. Ingot
    DuraKapp™#1 Babbitt - 35 lb. Ingot
    $515.75
    ASTM B23 #1 - OEM matching refurbishment Tin Babbitt for high speed machinery, engines, and generators. 91Sn4.5Cu4.5Sb, nominal 35 lb. ingots. VIEW PRODUCT

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DuraKapp™#1 is a Lead-free, Tin-based Babbitt known for its ability to withstand high pressure, high temperature, and friction. Kapp Alloy combines high purity virgin raw materials and our proprietary Precision Microcasting™ process to create the world’s strongest, most consistent Tin-based Babbitt. It is available in a variety of forms such as: ingots, notch bars, and bars depending on your application.

 

DuraKapp™#1 Babbitt meets or exceeds the specifications for ASTM #1 Babbitt - also known as #1, No. 1, or Grade 1 Babbitt. We back all of our products with a 100% satisfaction guarantee or your money back.

 

Applications

 

Properties

Specification

ASTM B23:

Grade 1

QQ-T-90A:

No. 1

 

Composition

%

Sn (Tin):

90.0-92.0%

Sb (Antimony):

4.0-5.0%

Cu (Copper):

4.0-5.0%

Pb (Lead):

0.35% (max.)

 

Component Elements Properties

Metric

English

Comments

Aluminum, Al: 

<= 0.0050 %

<= 0.0050 %

Antimony, Sb: 

4.5 %

4.5 %

Arsenic, As: 

<= 0.10 %

<= 0.10 %

Bismuth, Bi: 

<= 0.080 %

<= 0.080 %

Cadmium, Cd: 

<= 0.050 %

<= 0.050 %

Copper, Cu: 

4.5 %

4.5 %

Iron, Fe: 

<= 0.080 %

<= 0.080 %

Lead, Pb: 

<= 0.35 %

<= 0.35 %

Tin, Sn: 

91 %

91 %

Zinc, Zn: 

<= 0.0050 %

<= 0.0050 %

 

Technical Data

Metric

English

Comments

Density:

7.34 g/cc

0.265 lb/in³

Hardness, Brinell: 

17

17

10 mm ball/500 kg load-30 sec.

Tensile Strength, Ultimate: 

62.0 MPa

8,990 psi

Diecast

 

64.0 MPa

9,280 psi

Chill cast

Elongation at Break: 

2.0 %

2.0 %

in 50 mm

Modulus of Elasticity: 

50.0 GPa

7250 ksi

Compressive Yield Strength: 

30.3 MPa

18.3 MPa

4,390 psi

2,650 psi

@ 68°F (20°C);

@ 212°F (100°C)

Ultimate Compressive Strength: 

88.6 MPa

12,900 psi

Fatigue Strength:

26.0 MPa

@ 2.007 Cycles

3,770 psi

@ 2.007 Cycles

Chill cast, R.R. Moore Test

Izod Impact:

3.40 J

2.51 ft-lb

Chill Cast

Johnson’s Apparent Elastic Limit:

16.9 MPa 7.2 MPa

2,450 psi;

1,050 psi

68°F (20°C);

212°F (100°C)

Melting Range:

433-700°F (223-371°C)

Pouring Temperature:

441°F (227°C)

 

Product Variants

DuraKapp™#1 is available in standard forms:

  • 35 lb. (15.9 kg) ingots
  • 6 lb. (2.7 kg) notch bars
  • 1 lb. (0.5 kg) bars

 

Custom alloys and forms are our specialty. Call Kapp Alloy to discuss your specific project.

Also Order

 

Click here for DuraKapp™#1 Technical Data Sheet

 

Click here for DuraKapp™#1 Safety Data Sheet

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