C90300 Material Data Sheet

Chemical Properties -- C90300 / NAVY G / Tin Bronze / SAE 620

Element

Nominal %

Minimum %

Maximum %

Aluminum

-

-

0.005

Antimony

-

-

0.2

Copper

88

86

89

Iron

-

-

0.2

Lead

-

-

0.3

Nickel

-

-

1

Phosphorus

-

-

0.05

Silicon

-

-

0.005

Sulfur

-

-

0.05

Tin

8

7.5

9

Zinc

4

3

5

 

Mechanical Properties -- C90300 / NAVY G / Tin Bronze / SAE 620

MO1 - As Sand Cast

 

Tensile Strength:

Minimum 45 ksi

Yield Strength:

Minimum 21 ksi - 0.5% Ext. under load

Elongation:

Minimum 30% in 2 in.

Brinell Hardness:

70 @ 500 kg load

 

 

M02 - As Centrifugal Cast

 

Tensile Strength:

Minimum 44 ksi

Yield Strength:

Minimum 22 ksi - 0.5% Ext. under load

Elongation:

30%, in 2 inches

 

 

M07 - As Continuous Cast

 

Tensile Strength:

Minimum 44 ksi

Yield Strength:

Minimum 22 ksi - 0.5% Ext. under load

Elongation:

18%, in 2 inches

 

Physical Properties -- C90300 / NAVY G / Tin Bronze / SAE 620

Property

US Customary

Melting Point - Liquidus

1832 F

Melting Point - Solidus

1570 F

Density

0.318 lb/in3 at 68 F

Specific Gravity

8.8

Specific Heat Capacity

0.09 Btu/lb/oF at 68 F

Coefficient of Thermal Expansion

10.0 ·10-6 per oF (68-212 F)

Thermal Conductivity

43.2 Btu · ft/(hr · ft2·oF)at 68F

Electrical Conductivity

12 %IACS @ 68 F

Electrical Resistivity

87.2 ohms-cmil/ft @ 68 F

Modulas of Elasticity in Tension

14,000 ksi

 

Fabrication Properties -- C90300 / NAVY G / Tin Bronze / SAE 620

Joining Methods

Suitability

Soldering

Excellent

Brazing

Good

Oxyacetylene Welding

Fair

Gas Shielded Arc Welding

Fair

Coated Metal Arc Welding

Fair

Machinability (C360 Brass =100)

30