Bronze Alloy Charts

Commercially Available Alloys

These charts are informational only. Not for design purposes.

Centrifugally Cast - Copper Bismuth Bronze

(C89320, C89325, C89831, C89833, C89835, C89836, C89837)

New regulations taking effect in January of 2014 will require brass products used in potable water installations to be replaced by materials which are lead free.

Examples of items that may need replaced by a lead free grade if in a potable water installation:

  • Lead free pump shaft sleeves
  • Lead free impeller wear rings
  • Lead free bushings
  • Lead free adapters
  • Lead free couplings
  • Lead free flanges
  • Lead free collars
  • Lead free bowl wear rings
  • Lead free case wear rings
  • Lead free brass check valves
  • Lead free backflow preventers
  • Lead free brass ball valves
  • Lead free threaded brass fittings
  • Lead free water main fittings
Copper - Bismuth (Lead Free Alternative Alloys)
Cross Index Nominal Chemical Composition Typical Mechanical Properties
CDA Ingot Former SAE Former Federal Former ASTM Copper Tin Bi Zinc Tensile (psi) Yield (psi) Elongation % BHN @ 500 KG
C89320 --- --- --- --- 89 6 5 --- 40,000 20,000 30 70
C89325 --- --- --- --- 86 10 3.2 --- 35,000 18,000 20 73
C89831 --- --- --- --- 89 3.2 3.2 3 34,000 15,000 20 55
C89833 --- --- --- --- 89 5 2.2 3 37,000 17,000 28 60
C89835 --- --- Federalally III-932 --- 87 6.7 2.2 3 35,000 18,000 20 65
C89836 --- --- --- --- 89 5.5 2.5 3 37,000 19,000 30 65
C89837 --- --- --- --- 86 3.5 0.9 8 37,000 17,000 32 60

Centrifugally Cast - High Leaded Tin Bronzes

(C932, C934, C935, C936, C937, C938, C943, C945)

The high leaded tin bronzes contain the most widely used bearing bronze alloy C932 (also known as SAE 660). Widely available and somewhat less expensive than other bearings alloys - it is known for its unsurpassed wear performance against steel journals. It can be used against unhardened and not perfectly smooth shafts. Lead weakens these alloys but imparts the ability to tolerate interrupted lubrication. It also combines favorable antifriction properties with good load-carrying capacities and will conform to slight shaft misalignments.

Typical uses:

  • General purpose bushings
  • Bearings
  • Washers
  • Non-pressure applications
  • High speed - light load bushings
  • Mild acid applications
  • Bearings and bushings with machinability and anti-seizing properties
  • High speed - heavy pressure bushings
  • Bridge parts
  • Bearing plates
  • Low friction - moderate pressure bushings
  • Railroad applications
High Leaded Tin Bronze
Cross Index Nominal Chemical Composition Minimum Mechanical Requirements
CDA Ingot Former SAE Former Federal Former ASTM Copper Tin Lead Zinc Tensile (psi) Yield (psi) Elongation % BHN @ 500 KG
C93800 319 67 (E6) 3D 78 7 15 --- 25,000 16,000 5 60
C94000 296 --- (E2) --- 72 13 15 --- --- --- --- 50
C94100 325 --- (E5) --- 75 5 20 --- 25,000 17,000 7 50
C94300 322 --- (E1) 3E 70 5 25 --- 21,000 15,000 7 48

Centrifugally Cast - Leaded Tin Bronzes

(C922, C923, C926, C927)

Leaded tin bronze has similar uses as tin bronze but is specified when better machinability and/or pressure tightness is needed.

Typical uses:

  • Medium pressure hydraulic & steam to 550 F
  • Marine and ornamental castings
  • High-pressure hydraulic and steam equipment
  • Structural castings
  • Lead screw nuts
  • Heavy duty bearings
  • Pump pistons
Leaded Tin Bronze
Cross Index Nominal Chemical Composition Minimum Mechanical Requirements
CDA Ingot Former SAE Former Federal Former ASTM Copper Tin Lead Zinc Tensile (psi) Yield (psi) Elongation % BHN @ 500 KG
C83600 115 40 (B5) 4A 85 5 5 5 36,000 19,000 15 60
C84400 123 --- --- --- 81 3 7 9 30,000 15,000 16 55
C92800 295 --- --- --- 79 16 5 --- 40,000 30,000 1 130
C93200 315 660 A-932 3B 83 7 7 3 35,000 20,000 10 65
C93400 310 --- (E8) --- 84 8 8 --- 34,000 20,000 8 60
C93500 326 66 (E9) 3C 85 5 9 1 30,000 16,000 12 60
C93600 --- --- --- --- 80 7 12 1 32,000 16,000 15 60
C93700 305 64 (E10) 3A 80 10 10 --- 35,000 20,000 6 60

Centrifugally Cast - Tin Bronzes

(C903, C905, C907, C916)

Tin bronze offers excellent corrosion resistance along with good wear resistance and reasonably high strength. Used in sleeve bearings, they wear especially well against steel.

Typical uses:

  • Bearings
  • Bushings
  • Pump impellers
  • Piston rings
  • Pump bodies
  • Valves
  • Steam fittings
  • Worm wheels
  • Gears
  • Bearings for heavy loads and relatively low speeds
Tin Bronze
Cross Index Nominal Chemical Composition Minimum Mechanical Requirements
CDA Ingot Former SAE Former Federal Former ASTM Copper Sn Pb Zn Ni Tensile (psi) Yield (psi) Elongation % BHN @ 500 KG
C90300 225 620 (D5) 1B 88 8 --- 4 --- 44,000 22,000 18 70
C90500 210 62 (D6) 1A 88 10 --- 2 --- 44,000 25,000 10 75
C90700 205 65 --- --- 89 11 --- --- --- 40,000 25,000 10 80
C90900 199 --- --- --- 87 13 --- --- --- 40,000 20,000 15 90
C91000 197 --- (D2) --- 85 15 --- --- --- 30,000 25,000 1 105
C91100 --- --- --- --- 84 16 --- --- --- 35,000 25,000 2 135**
C91300 194 --- (D1) --- 81 19 --- --- --- 35,000 30,000 0.5 160**
C91600 --- --- (F1) --- 88 10.5 --- --- 1.5 35,000 17,000 10 65
C91700 --- --- --- --- 86.5 12 --- --- 1.5 35,000 17,000 10 65
C92200 245 622 (D4) 2A 88 6 1.5 4.5 --- 38,000 19,000 18 65
C92300 230 621 (D3) 2B 87 8 1 4 --- 40,000 19,000 16 70
C92500 250 640 --- --- 87 11 1 2 1 40,000 24,000 10 80
C92700 206 63 --- --- 88 10 2 --- --- 38,000 20,000 8 77
C92900 206W/Ni --- --- 84 10 2.5 --- 3.5 45,000 25,000 8 75

**BHN @ 3000 KG


Centrifugally Cast - Yellow Brass

Yellow Brass
Cross Index Nominal Chemical Composition Minimum Mechanical Requirements
CDA Ingot Former SAE Former Federal Former ASTM Copper Sn Pb Zn Al Tensile (psi) Yield (psi) Elongation % BHN @ 500 KG
C85200 400 --- A-852 B584-852 72 1 3 24 --- 35,000 12,000 25 45
C85300 407 --- --- --- 70 --- --- 30 --- 35,000 11,000 40 ---
C85400 403 41 A-854 B584-854 67 1 3 29 --- 30,000 11,000 20 50
C85700 405.2 --- A-857 B584-857 63 1 1 34.7 0.3 40,000 14,000 15 75

Centrifugally Cast - Manganese Bronzes

(C862, C863, C864, C865, C867)

Manganese bronze, the strongest of the "as cast" bronze, is used primarily for heavy duty mechanical products. They provide moderately good corrosion resistance.

Typical uses:

  • Brackets
  • Shafts
  • Gears
  • Structural parts
  • Screw down nuts
  • Slow-speed heavy load bearings
  • Gears
  • Gibs and cams
  • Free machine parts
  • Lever arms
  • Light duty gears
  • Marine fittings
  • Valve stems
  • Propellers for salt and fresh water
  • Machinery parts substituting for steel and mallable iron
Manganese Bronze
Cross Index Nominal Chemical Composition Minimum Mechanical Requirements
CDA Ingot Former SAE Former Federal Former ASTM Copper Zn Al Fe Mn Tensile (psi) Yield (psi) Elongation % BHN @ 3000 KG
C86200 423 430A (B) & (E) 8B 64 26 4 3 3 90,000 45,000 18 180
C86300 424 430B (C) 8C 63 25 6 3 3 110,000 62,000 14 225
C86500 421 43 (A) 8A 58 39 1 1 1 70,000 25,000 25 130

Centrifugally Cast - Leaded Manganese Bronze

Leaded Manganese Bronze
Cross Index Nominal Chemical Composition Minimum Mechanical Requirements
CDA Ingot Former SAE Former Federal Former ASTM Copper Sn Pb Zinc Tensile (psi) Yield (psi) Elongation % BHN @ 3000 KG
864 420 --- C2 7A 59 --- 1 40 60,000 20,000 15 105
867 422 --- --- --- 58 --- 1 41 80,000 32,000 15 155

Centrifugally Cast - Aluminum Bronzes

(C952, C953, C954, C955, C956, C958) and aerospace standards AMS 4880, AMS 4881, AMS 4640

Aluminum bronzes and nickel aluminum bronzes contain between 3% and 12% aluminum which strengthens the alloy. They are best known for their high corrosion and oxidation resistance combined with exceptionally good mechanical properties. Aluminum bronze bearings are used in heavily loaded applications. Alloys such as C954 or C955 can be quenched and tempered to reach even higher strengths when necessary. Resistance to seawater corrosion is extremely high in nickel aluminum bronzes such as C955. Due to its resistance to corrosion, erosion, and cavitation, it is widely used for propellers and other marine hardware.

Typical uses:

  • Gun mounting and slides
  • Landing gear parts
  • Pickling tank and mild alkali applications
  • Marine engine and propellers
  • Gears
  • Cams
  • Stripper nuts
  • Slippers
  • High temperature applications
  • Mining machine parts
  • Spur and low speed - heavily loaded worm gears
  • Nuts
  • Pumps
  • Bushings
  • Tank gun recoil mechanisms
  • Valve guides and seats in aircraft engines
  • Cable connectors
  • Pole-line hardware
  • Terminals
  • Propeller hubs
  • Blades and other parts including valves with sea water contact
Aluminum Bronze
Cross Index Nominal Chemical Composition Minimum Mechanical Requirements
CDA Ingot Former SAE Former Federal Former ASTM Copper Al Fe Ni Mn Tensile (psi) Yield (psi) Elongation % BHN @ 3000 KG
C95200 415A 68A 9A 88 9 3 --- --- --- 68,000 26,000 20 125
C95300 415B 68B G7 9B 89 10 1 --- --- 70,000 26,000 25 140
C95300HT G7-HT --- --- --- --- --- --- --- 80,000 40,000 12 174
C95400 415C --- A-954 9C 85 11 4 --- --- 85,000 32,000 12 170
C95400-HT --- G5-HT 9C-HT --- --- --- --- --- 95,000 45,000 10 195
C95500 415D --- G3 9D 81 11 4 4 --- 95,000 42,000 10 195
C95500-HT --- G3-HT 9D-HT --- --- --- --- --- 11,000 62,000 8 230
C95800 --- --- --- --- 81 9 4 5 1 85,000 35,000 15 159
C95900 --- --- --- --- 82 13 4 --- 1 90,000 52,000 0.5 286

Centrifugally Cast - Nickel Silvers

(C973, Mil C 15345 alloy 7, modified C973)

Nickel silver offers excellent corrosion resistance, high castability, and very good machinability. They have moderate strength and a pleasing silvery luster.

Typical uses:

  • Valves
  • Fittings
  • Hardware for food and beverage handling equipment
  • Seals and labyrinth rings in steam turbines
Nickel Silver
Cross Index Nominal Chemical Composition Minimum Mechanical Requirements
CDA Ingot Former SAE Former Federal Former ASTM Copper Sn Pb Zn Ni Tensile (psi) Yield (psi) Elongation % BHN @ 3000 KG
C97300 410 --- --- --- 56 2 10 20 12 30,000 15,000 8 50
C97600 412 --- --- --- 64 4 4 8 20 30,000 17,000 8 75