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    • Aluminum Castings

    Many foundries only run a handful of common alloys. At Warner Bros. Foundry Company our reputation is on running a wide range of aluminum and copper-based alloys.

    If you don’t see any alloy of interest, listed below, please let us know. We are happy to quote other alloys. Only the highest quality Certified Ingot is used for the production of our Aluminum casting.

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    Aluminum Alloy Specs

    Composition

    Designations and nominal compositions of common aluminum alloys used for sand casting.

    AA Number Former AA designations Former ASTM number Cu Mg Mn Si Others
    A206.0 … … 4.6 0.25 0.35 0.05 (Max) 0.22 Ti, 0.10 Fe (Max)
    319.0 319, Allcast SC64D 3.50 … … 6.00 …
    C355.0 C355 SG51B 1.20 0.50 0.10 (Max) 5.00 0.60 Fe (Max), 0.35 Zn (Max)
    A356.0 A356 SG70B 0.20 (Max) 0.35 0.10 (Max) 7.00 0.20 Fe (Max), 0.10 Zn (Max)
    A357.0 A357 … … 0.60 … 7.00 0.15 Ti, 0.005 Be
    535.0 Almag 35 GM70B … 6.80 0.18 … 0.18 Ti
    713.0 613, Tenzaloy ZC81A,B 0.70 0.35 … … 7.5 Zn, 0.7 Cu
    771.0 Precedent 71A ZG71B … 0.90 … … 7.0 Zn, 0.13 Cr, 0.115 Ti
    850.0 750 … 1.00 … … … 6.2 Sn, 1.0 Ni

     

    Characteristics

    Characteristics of common aluminum alloys used in sand casting.

    Alloy Fluidity Resistance to hot cracking Pressure tightness Heat Treatment Strength at elevated temperatures General corrosion resistance Machining Polishing Anodizing Apperance Weldability
    319.0 2 2 2 Optional 3 3 3 4 4 2
    C355.0 1 1 1 Yes 2 3 3 3 4 1
    A356.0 1 1 1 Yes 3 2 3 4 4 1
    A357.0 1 1 1 Yes 2 2 3 4 4 1
    535.0 5 4 5 Optional 3 1 1 1 1 4
    713.0 3 4 4 No 4 3 1 1 1 4
    771.0 3 4 4 Yes 4 3 1 1 1 4
    850.0 4 5 5 Yes 5 4 1 3 … 5

    Characteristics are comparatively rated from 1 to 5; 1 is the highest or best possible rating.

     

    Alloy Uses

    Alloy Uses
    A206.0 Gear housings, truck spring hanger, cylinder heads, turbine, supercharger impellers
    319.0 Engine crankcase covers, electrical boxes, gear boxes
    C355.0 Air-compressor fittings, crankcase, gear housings, hydraulic fittings
    A356.0 Automobile transmission cases, oil pans and rear-axle housings
    A357.0 Pump bodies, cylinder blocks for water cooled engines
    535.0 Marine industry, corrosive prone applications
    713.0 General-purpose casting alloy for applications that require strength without heat treament or that involve brazing

     

    Test Bar

    Typical Tensile Properties for separately cast test bars of common aluminum casting alloys.

    Tensile strength Yield strength Shear strength Compressive yield strength
    Alloy Temper Mpa ksi Mpa ksi Mpa ksi Mpa ksi Elongation %
    A206.0 T7 435 63 345 50 257 37 372 54 11.7
    319.0 F 185 27 125 18 150 22 130 19 2
    319.0 T6 250 36 165 24 200 29 170 25 2
    355.0 T6 240 35 175 25 195 28 180 26 3
    355.0 T7 265 38 250 36 195 28 260 38 0.5
    356.0 T6 230 33 165 24 180 26 170 25 3.5
    356.0 T7 235 34 210 30 165 24 215 31 2
    535.0 F 275 40 140 20 190 27.5 162 23.5 13
    713.0 T5 210 30 150 22 180 26 170 25 3
    771.0 T71 330 48 310 45 … … 370 54 2

    Typical Properties & Characteristics of Aluminum Sand Casting

    Typical Aluminum Alloys (a) Resistance to Corrosion (b) Typical Mechanical Properties
    AA Former AA Designation ASTM Spec. No. Federal Spec. No. SAE Alloy No. Approx. Weight, lb./in.3 General Stress Corrosion Cracking Relative Machinability (c) Castability (k) Weldability (Arc) (d) Ultimate Tensile Strength, ksi (i) Yield Strength Tension, ksi (e) (i) Elongation, Percentage in 2 in. (Round Specimen, 1/2" Dia.) (f) (i) Shear Strength, ksi (g) Fatigue Endurance Limit, ksi (h) Brinell Hardness (500-kg Load, 10-mm Ball) (j)
    206.0-T4 ... B26 QQ-A-601 … 0.101 2 B 3 2 2 51 36 7 40 9.5 104
    A206.0-T7 ... B26 QQ-A-601 … 0.101 2 B 3 2 2 63 50 3 37 10 122
    319.0-F 319, Allcast B26 QQ-A-601 329 0.101 3 B 4 4 4 27 18 2 22 10 70
    319.0-T5 319, Allcast … …. … 0.101 3 B 3 2 2 30 26 1.5 24 11 80
    319.0-T6 319, Allcast B26 QQ-A-601 329 0.101 3 C 3 2 2 36 24 2 29 11 80
    355.0-T6 355 B26 …. 322 0.098 3 A 3 1 2 35 25 3 28 9 80
    355.0-T7 355 B26 QQ-A-601 … 0.098 3 A 3 1 2 38 36 0.5 38 10 85
    C355.0-T6 C355 B26 …. … 0.098 3 A 3 1 2 38 28 5 28 10 90
    356.0-T6 356 B26 QQ-A-601 323 0.098 2 A 4 1 2 33 24 3.5 26 8.5 70
    356.0-T7 356 B26 QQ-A-601 … 0.098 2 A 4 1 2 34 30 2 24 9 75
    A356.0-T6 A356 … …. … 0.096 2 A 4 1 2 37 27 5 20 8.5 80
    535.0-F Almag 35 B26 QQ-A-601 324 0.095 1 A 1 5 4 40 21 13 28 10 70
    713.0-T5 613, Tenzaloy B26 QQ-A-601 315 0.102 2 B 1 4 4 35 25 4 26 9 74
    771.0-T5 Precedent 71A B26 QQ-A-601 ... 0.102 2 B 1 4 4 42 38 1.5 ... ... 100
    771.0-T6 Precedent 71A B26 QQ-A-601 ... 0.102 2 B 1 4 4 42 35 5 ... ... 90

    Zinc Alloy Properties

    ALLOY ZA-8 ZA-12 ZA-27
    Mechanical Properties Sand Cast / Perm Mold / Die Cast Sand Cast / Perm Mold / Die Cast Sand Cast / Perm Mold / Die Cast
    Ultimate Tensile Strength
    psi x 103
    		 38/32-37/54 40-46/45-50/58 58-64/45-47/61
    Yield Strenght-0.2% Offset
    psi x 103
    		 29/30/42 31/39/46 54/37/55
    Elongation % in 2" 1-2/1-2/6-10 1-3/1-3/4-7 3-6/8-11/1-3
    Shear Strength psi x 103
    		 na/35/40 37/na/43 42/33/47
    Hardness Brinell 85/85-90/95-110 89-105/89-105/95-115 110-120/90-110/105-125
    Impact Strength ft-lb
    156/na/313
    193/na/213
    353/433/93
    Fatigue Strength Rotary
    Bend (psi x 103 )
    5 x 108 cycles
    		 na/7.5/15 15/na/17       25/15/21
    Compressive Yield Strength
    0.1% Offset psi x 103
    		 29/31/37 33/34/39 48/37/52
    Modulus of Elasticity
    psi x 106
    12.4/12.47/na
    na/12^7/na
    na/11.37/na
    Poisson's Ratio na/0.29/na na/.3/na na/.32/na
    Physical Properties
    Density lb/cu in 0.227 0.218 0.181
    Melting Range 0F
    		 707-759 710-810 708-903
    Electrical Conductivity %IACS 27.7 28.3 29.7
    Thermal conductivity
    BTU/ft/hr/ 0F
    		 66.3 67.1 72.5
    Coefficient of thermal Expan
    68-2120Fuin/in/ 0F
    		 12.9 13.4 14.4
    Specific Heat BTU/lb/ 0F
    Pattern or Die Shrinkage in/in
    0.104
    na/ 1/8 in/ft/ .007
    0.107
    1/8in/ft /5/32in /ft/.0075
    0.125
    5/32in/ft /5/32in/ft /.008

     

    Chemical & North American Color Code Requirements

    ASTM B240
    ZA-8
    ZA-8
    ZA-12
    ZA-12
    ZA-27
    ZA-27
    Aluminum 8.2-8.8 10.8-11.5 25.5-28.0
    Magnesium 0.02-0.03 0.02-0.03 0.012-0.020
    Copper 0.9-1.3 0.5-1.2 2.0-2.5
    Iron, Max 0.035 0.05 0.07
    Lead, Max 0.005 0.005 0.005
    Cadmium, Max 0.005 0.005 0.005
    Tin, Max 0.002 0.002 0.002
    Nickel ... 0.005-0.020 ...
    Zinc Remainder Remainder Remainder

     

    Download All Aluminum Resources

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      Warner Brothers Foundry guarantees that your aluminum part is manufactured 100% in the United States, along with all of our tooling. These are American made aluminum castings, the best in the world.

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