Skip Navigation LinksC90300 Navy G Tin Bronze
St. Paul
Foundry
Banner
Great Castings          St. Paul Foundry 954 Minnehaha Ave West St. Paul MN 55104 651-488-5567 www.stpaulfoundry.com

 Simplifying the Supply Chain For High Knowledge Content Components
  

Alloy Specifications, Chemistries, and Technical Data

C90300 TIN BRONZE
Aliases
CDA NUMBER C90300
Common Name Navy "G" Bronze
Common Name Navy G
SAE 620
Nearest Applicable Casting Standards
ASTM (B Series) B584
SAE (J Series) 461, 462 (was 620)
Federal (QQ-C- Series) 390
Military (Mil-C- Series) 22229
Specification Composition
Minimum Maximum
Copper (Cu) 86 89
Tin (Sn) 7.5 9
Lead (Pb) 0.3
Zinc (Zn) 3.5 5
Iron (Fe) 0.2
Antimony (SB) 0.2
Nickel (Ni) 1
Sulphur (S) 0.05
Phosphorous (P) 0.05
Aluminum (Al) 0.005
Silicon (Si) 0.005
Copper + Sum of Named Elements 99.4
Phosphorous shall be 1.5%, Max for continuous castings 1.5
Specification Properties
(Heat Treat 'F' Denotes As Cast) Heat Treat State Minimum
Tensile Strength (ksi) F 40
Yield Strength (.5% extension under load) (ksi) F 18
Elongation (2 inch gauge length) (%) F 20
Typical Properties
Heat Treat State Typical
Proportional Limit (ksi) 13
Modulus of Elasticity (ksi) 14000
Hardness (Brinell) (HB @ 500kg) 70
Machinability (% of free cutting brass) 35
Impact Strength (Charpy) (ft-lb) 14
Compressive Strength (0.001 in. set/in.) (ksi) 13
Melting Range (Liquidus-Solidus)(F) 1570-1832
Coefficient of Thermal Expansion (per F @ 68-400F) 0.000010
Thermal Conductivity (Btu/sq.ft/ft./hr/F @ 68F) 43.2
Specific Heat (Btu/lb/F @ 68F) 0.09
Electrical Conductivity (% IACS @ 68F) 12
Density (lb/cu.in. @ 68F) 0.318
Pouring Temperature (Light Castings) (F) 2000-3000
Pouring Temperature (Heavy Castings) (F) 1900-2100
Patternmakers Shrinkage (in/ft) 3/16
Drossing Low
Gassing Medium
Fluidity Medium
Reduction of Area (%) F 35
Comments
Wear Resistance: Excellent
Corrosion Resistance*
*While corrosion reistance is listed for food products, certain alloys may be unacceptable for other reasons.
Acetate Solvents Excellent Resistance
Acetic Acid, 20 % Not Recommended
Acetic Acid, 50% Not Recommended
Acetic Acid, Glacial Excellent Resistance
Acetone Excellent Resistance
Acetylene Explosive!
Alcohols Excellent Resistance
Aluminum Chloride Not Recommended
Aluminum Sulfate Acceptable
Ammonia, Moist Gas Not Recommended
Ammonia,Moisture-Free Excellent Resistance
Ammonium Chloride Not Recommended
Ammonium Hydroxide Not Recommended
Ammonium Nitrate Not Recommended
Ammonium Sulfate Acceptable
Aniline and Aniline Dyes Not Recommended
Asphalt Excellent Resistance
Barium Chloride Excellent Resistance
Barium Sulfide Not Recommended
Beer Excellent Resistance
Beet Sugar Syrup Excellent Resistance
Benzine Excellent Resistance
Benzol Excellent Resistance
Boric Acid Excellent Resistance
Butane Excellent Resistance
Calcium Bisulfite Excellent Resistance
Calcium Chloride (acid) Acceptable
Calcium Chloride (alkaline) Not Recommended
Calcium Hydroxide Not Recommended
Calcium Hypochlorite Not Recommended
Cane Sugar Syrups Excellent Resistance
Carbon Dioxide, Dry Excellent Resistance
Carbon Dioxide, Moist Acceptable
Carbon Tetrachloride, Dry Excellent Resistance
Carbon Tetrachloride, Moist Acceptable
Carbonated Beverages Not Recommended
Chlorine, Dry Excellent Resistance
Chlorine,Moist Not Recommended
Chromic Acid Not Recommended
Citric Acid Excellent Resistance
Copper Sulfate Excellent Resistance
Cottonseed Oil Excellent Resistance
Creosote Acceptable
Ethers Excellent Resistance
Ethylene Glycol Excellent Resistance
Ferric Chloride,Sulfate Not Recommended
Ferrous Chloride, Sullate Not Recommended
Formaldehyde Excellent Resistance
Formic Acid Excellent Resistance
Freon Excellent Resistance
Fuel Oil Excellent Resistance
Furfural Excellent Resistance
Gasoline Excellent Resistance
Gelatin Excellent Resistance
Glucose Excellent Resistance
Glue Excellent Resistance
Glycerine Excellent Resistance
Hydrochloric or Muriatic Acid Not Recommended
Hydrofluoric Acid Acceptable
Hydrofluosilicic Acid Acceptable
Hydrogen Excellent Resistance
Hydrogen Peroxide Not Recommended
Hydrogen Sulfide, Moist Not Recommended
Hydrogen Sulfide,Dry Not Recommended
Lacquer Thinners Excellent Resistance
Lacquers Excellent Resistance
Lactic Acid Excellent Resistance
Linseed Oil Excellent Resistance
Liquor, White Not Recommended
Liquor,Black Acceptable
Liquor,Green Not Recommended
Magnesium Chloride Excellent Resistance
Magnesium Hydroxide Acceptable
Magnesium Sullate Excellent Resistance
Mercury, Mercury Salts Not Recommended
Milk Excellent Resistance
Molasses Excellent Resistance
Natural Gas Excellent Resistance
Nickel Chloride Excellent Resistance
Nickel Sulfate Excellent Resistance
Nitric Acid Not Recommended
Oleic Acid Excellent Resistance
Oxalic Acid Excellent Resistance
Phosphoric Acid Excellent Resistance
Picric Acid Not Recommended
Potassium Chloride Excellent Resistance
Potassium Cyanide Not Recommended
Potassium Hydroxide Not Recommended
Potassium Sulfate Excellent Resistance
Propane Gas Excellent Resistance
Sea Water Excellent Resistance
Soap Solutions Excellent Resistance
Sodium Bicarbonate Excellent Resistance
Sodium Bisulfate Not Recommended
Sodium Carbonate Excellent Resistance
Sodium Chloride Excellent Resistance
Sodium Cyanide Not Recommended
Sodium Hydroxide Not Recommended
Sodium Hypochlorite Not Recommended
Sodium Peroxide Acceptable
Sodium Phosphate Excellent Resistance
Sodium Sulfate, Silicate Excellent Resistance
Sodium Sulfite, Thiosulfate Not Recommended
Soduim Nitrate Acceptable
Stearic Acid Excellent Resistance
Sulfur Chloride Not Recommended
Sulfur Dioxide, Dry Excellent Resistance
Sulfur Dioxide, Moist Excellent Resistance
Sulfur Trioxide, Dry Excellent Resistance
Sulfur, Solid Not Recommended
Sulfuric Acid, 78% or Less Acceptable
Sulfuric Acid, 78% to 90% Not Recommended
Sulfuric Acid, 90% to 95% Not Recommended
Sulfuric Acid, Fuming Not Recommended
Tannic Acid Excellent Resistance
Tartaric Acid Excellent Resistance
Toluene Acceptable
Trichlorethylene, Dry Excellent Resistance
Trichlorethylene, Moist Excellent Resistance
Turpentine Excellent Resistance
Varnish Excellent Resistance
Vinegar Excellent Resistance
Water, Acid Mine Not Recommended
Water, Condensate Excellent Resistance
Water, Potable Excellent Resistance
Whiskey Excellent Resistance
Zinc Chloride Not Recommended
Zinc Sulfate Excellent Resistance
Applications
Acme Thread
Baffle Plate
Bearing Bracket
Bearing Bracket Cap
Bearing Bracket Cove
Bearing Inner
Bearings
Blade Impeller
Body
Bottom Cap
Brake Arm
Brake Lever
Bushings
Cannon
Capstan Head Cover
Casing Ring
Channel Ring Navy G
Chucking Fork
Collector Ring
Collector Ring With
Collector Ring Wout
Cowl Light Bracket
Discharge Casing
Flinger
Flingers
Fork
Gears
Gland
Gland Follower
Gland Followers
Header Coil
Hinge
Impeller
Impeller Nut
Impeller Ring
Lh Impeller
Lower Oil Seal
Mounting Bracket
Od Impeller
Oil Gaurd
Oil Seal
Oil Slinger
Packing Gland
Packing Glands
Piston Rings
Post
Pump Bodies
Pump Impellers
Pump Piston Follower
Purge Sump Valve Bod
Rh Impeller
Ring
Rocker Arm
Scraper
Screen Scraper
Seal Rings
Second Stage Diffuse
Slider Bearing
Sliding Block
Spacer
Spring Chamber
Spring Retainer Cast
Steam Fittings
Stock Pattern
Stock Shoe
Stuff Box Gland
Stuffing Box
Suction
Suction Casing
Switch Cover
Thrust Block
Tool Holder
Triangle Handle
Upper Oil Seal
Valve Components
Valve Seat
Vane Impeller
Volute
Great Castings
         St. Paul Foundry 954 Minnehaha Ave West St. Paul MN 55104 651-488-5567 www.stpaulfoundry.com
Banner
Banner
St. Paul Foundry
954 Minnehaha Avenue West
Saint Paul, Minnesota 55104
(651) 488-5567  Fax: (651) 488-0908
Sales and Estimating: (651) 312-4734 email

Site Map      Copyright 2025

Alloy Guide Sheet Terms of Use

Use Good Design Principles

1. St. Paul Foundry is providing this information on metal characteristics for informational purposes only. Before making a final decision on alloy selection consider the following and all other appropriate design and specification principles. Please note that this is not an exhaustive list.

2. Consult the appropriate specification from an accredited specifying body (ASTM, SAE, Federal or Military) to determine current minimum values of this alloy.

3. Use appropriate design safety factors.

4. Use Failure Modes and Effects Analysis to help identify possible weaknesses in designs and specifications.

5. Use computerized stress analysis tools.

6. Use appropriate certification requirements for your casting suppliers. These may include test bars, chemical certifications, radiography, dye penetrant or other non-destructive testing methods.

7. Test your design to failure in a controlled environment. Then test it to failure in a simulation of its end use.

8. You and you alone are responsible for the suitability of your design and the materials that you select.

Disclaimer

WHILE EVERY EFFORT IS MADE BY ST. PAUL FOUNDRY (SPF) TO ENSURE ACCURACY, THIS INFORMATION IS PROVIDED FOR GENERAL INFORMATION PURPOSES ONLY AND NOT FOR ANY OTHER PURPOSE. BY ACCESSING THIS INFORMATION, YOU AGREE THAT IT MAY BE REVISED AT ANY TIME, IT IS PROVIDED “AS IS” AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTY, THAT NO WARRANTY OR REPRESENTATION IS MADE ABOUT ITS CONTENT OR SUITABILITY FOR ANY PURPOSE, AND THAT SPF EXPRESSLY DISCLAIMS WARRANTIES OF MERCHANTABILITY AND FITNESS. YOU ASSUME ALL RISK AND LIABILITY FOR ANY LOSS, DAMAGE, CLAIM, OR EXPENSE RESULTING FROM YOUR REVIEW, USE, OR POSSESSION OF THIS INFORMATION.