Skip to content

Foundry 101

Equivalence Charts

Equivalent material grades across U.S., Asian, German, and U.K. standards.

Use these charts to find equivalent alloy grades across U.S., Asian, German, and U.K. standards, with the typical casting process and key characteristics of each.

Aluminum

ALLOY USA ASIA GERMANY UK CASTING PROCESS CHARACTERISTICS
Al-Si A356 AC4C LM25 Gravity cast sand and perm mold Good casting and machining characteristics, typically used in heat treated condition
Al-Si-12Fe A413 ADC1 ALSi12 LM20 Die Cast Excellent pressure tightness
Al-Si-Mg A360 ADC3 ALSi10Mg LM20 Die Cast Higher corrosion resistance but more difficult to cast
Al-Si-Cu A380 ADC10 ALSi8Cu3FE LM24 Die Cast Most common alloy for die casting
Al-Si-Cu A383 ADC12 LM2 Die Cast Excellent die filling characteristics, strength at elevated temperatures
B390 ADC14 LM30 Die Cast High hardness, good wear resistance

Magnesium

ALLOY USA ASIA GERMANY UK CASTING PROCESS CHARACTERISTICS
AZ91D 1729 3.5912 2970 Mag 3 Die Cast 33% lighter than aluminum. Excellent strength to weight ratio and corrosion resistance

Stainless Steel

ALLOY USA ASIA GERMANY UK CASTING PROCESS CHARACTERISTICS
CF-8 304 SUS 304 X 5 CrNI 18 10 304S16 Sand cast, Investment cast, forging High strength, excellent corrosion resistance
CF-8M 316 SUS316 X 5 CrNiMo 18 10 316S31 Sand cast, Investment cast, forging Contains molybdenum which increases corrosion resistance
CA-15 410 SUS410 X10Cr13 410S21 Sand cast, Investment cast, forging
IC 440C 440C SUS440C X105CrMo17 Sand cast, Investment cast, forging High hardness and toughness grade, sometimes used in cutting tools
630 17-4PH X5CrNiCuNb17-4-4 Sand cast, Investment cast, forging High strength and hardness, Good corrosion resistance. Used in aerospace and chemical processing

Gray Iron

ALLOY USA ASIA GERMANY UK CASTING PROCESS CHARACTERISTICS
20,000 PSI (Tensile) A48, Class 20 B HT 150 FC 100 GG10 Grade 100 Sand cast, Investment cast, forging Gray iron is available in several strength grades. Excellent noise and vibration damping. Good machinability.
25,000 PSI A48, Class 25 B HT 150 FC150 GG15 Grade 150 Sand cast, Investment cast, forging Gray iron is available in several strength grades. Excellent noise and vibration damping. Good machinability.
30,000 PSI A48, Class 30 B HT 200 FC200 GG20 Grade 200 Sand cast, Investment cast, forging Gray iron is available in several strength grades. Excellent noise and vibration damping. Good machinability.
35,000 PSI A48, Class 35 B HT 250 FC 250 GG25 Grade 250 Sand cast, Investment cast, forging Gray iron is available in several strength grades. Excellent noise and vibration damping. Good machinability.
40,000 PSI A48, Class 40B HT 300 FC300 GG30 Grade 300 Sand cast, Investment cast, forging Gray iron is available in several strength grades. Excellent noise and vibration damping. Good machinability.

Ductile Iron

ALLOY USA ASIA GERMANY UK CASTING PROCESS CHARACTERISTICS
60,000 PSI A536, 60-40-18 QT 400-18   FCD400 GGG40 400/17 Sand Casting, Shell Molding Also referred to as nodular iron. Comparable to some carbon steels in strength. Higher tensile and fatigue strength than gray iron. Excellent shock and impact loading.
65,000 PSI A536, 65-45-12 QT 450-10   FCD450 GGG45 420/12 Sand Casting, Shell Molding Also referred to as nodular iron. Comparable to some carbon steels in strength. Higher tensile and fatigue strength than gray iron. Excellent shock and impact loading.
70,000 PSI A536, 70-50-05 QT 500-7   FCD500 GGG50 500/7 Sand Casting, Shell Molding Also referred to as nodular iron. Comparable to some carbon steels in strength. Higher tensile and fatigue strength than gray iron. Excellent shock and impact loading.
80,000 PSI A536, 80-55-06 QT 600-3     FCD600 GGG60 600/7 Sand Casting, Shell Molding Also referred to as nodular iron. Comparable to some carbon steels in strength. Higher tensile and fatigue strength than gray iron. Excellent shock and impact loading.
100,000 PSI A536, 100-70-03 QT 700-2     FCD700 GGG70 700/2 Sand Casting, Shell Molding Also referred to as nodular iron. Comparable to some carbon steels in strength. Higher tensile and fatigue strength than gray iron. Excellent shock and impact loading.
120,000 PSI A536, 120-90-02 QT800-2    FCD 800 GGG80 800/2 Sand Casting, Shell Molding Also referred to as nodular iron. Comparable to some carbon steels in strength. Higher tensile and fatigue strength than gray iron. Excellent shock and impact loading.

Bar Stock

ALLOY USA ASIA GERMANY UK CASTING PROCESS CHARACTERISTICS
1010 1010 10 Ck10 040A10 Lower strength steels, higher ductility, lower cost Carbon steel
1020 1020 20 S20C C22 050A20 Lower strength steels, higher ductility, lower cost Carbon steel
1045 1045 45 S45C C45 080M46 Better mechanical properties than low carbon steels Carbon steel
4140 4140 42CrMo SCM440 42CrMo4 708A42 Good combination of strength, toughness and wear resistance Alloy Steel
15CrMo A-387Cr B 15CRMo STC42 16CrMo44 1653 Heavy duty structural and mechanical components Alloy Steel
20CrMo 4118, 4119 20CrMo SCT42 20CrMo44 CDS12 Heavy duty structural and mechanical components Alloy Steel
20Cr 5120 20Cr SCr420H 20Cr4 527A19 Case hardening steels used for high stress parts such as gears and shafts Alloy Steel
40Cr 5140 40Cr SCr440 41Cr4 520M40 Case hardening steels used for high stress parts such as gears and shafts Alloy Steel

Foundry 101

More guides

Let us help you move your business forward

Tell us about your part and our team will get back to you.

Talk with a Precision Metal Components Expert