SAE AMS Standard List: Irons & Steel Castings

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Introduction to SAE AMS Casting Standards

The Society of Automotive Engineers (SAE) employs a numerical index system to identify steel compositions, making it possible to use numbers that partially describe the material's composition. For simple alloy steels, the second digit typically indicates the approximate percentage of the predominant alloying element, providing engineers and manufacturers with immediate insight into the material's properties.

This comprehensive reference covers an extensive range of casting standards, including:

• Various iron castings designed specifically for automotive applications
• Heat-treated steel castings with diverse performance characteristics
• Corrosion-resistant investment steel castings for specialized applications

For more detailed information on the classification system, please refer to the Introduction to the SAE AMS Standard Designation System

Iron Casting Standards

The following table presents key SAE standards related to iron castings, their current status, and essential specifications:

Table 1. Iron Casting Standards

Standard Number	Last version	Description	Status
SAE AMS 5392	1994	Alloy Iron Castings, Sand, Moderate Corrosion and Heat Resistant, 2.1Cr - 15Ni - 6.5Cu (2.4 - 2.8C), as Cast	Replaced by ASTM A 439 /1/
SAE AMS 5393	1994	Alloy Iron Castings, Sand, Moderate Corrosion and Heat Resistant, 2.0Cr - 20Ni (2.4 - 2.8C), Stress Relieved	Replaced by ASTM A 439 /1/
SAE AMS 5394	1994	Alloy Iron Castings, Ductile, Sand, Corrosion and Heat Resistant, 2.0Cr - 20Ni (2.4 - 3.0C), Stress Relieved	Replaced by ASTM A 439 /1/
SAE J 158	-	Automotive Malleable Iron Castings	Withdrawn 2003 /6/
SAE J 431	2000	Automotive Gray Iron Castings	/22/
SAE J 434	2004	Automotive Ductile (Nodular) Iron Castings	/11/

Steel Casting Standards

Steel castings offer enhanced mechanical properties compared to iron castings, with various alloy compositions optimized for specific applications. The table below provides a detailed overview of steel casting standards.

Table 2. Steel Casting Standards

Standard Number	Last version	Description	Status
SAE AMS 5210	1970	Steel Castings, Investment, Electrical Induction Melted, Annealed	Withdrawn 1982 /1/
SAE AMS 5310	2001	Iron Castings, Pearlitic Malleable	/1/
SAE AMS 5315	1992	Ductile (Nodular) Iron Castings, Sand, 60,000 psi (415 MPa) Tensile Strength, Ferritize Annealed	/1/
SAE AMS 5316	1992	Ductile (Nodular) Iron Castings, Sand, 80,000 psi (550 MPa) Tensile Strength, as Cast	/1/
SAE AMS 5328	1998	Steel Castings, Investment 0.80Cr - 1.8Ni - 0.35Mo (0.28 - 0.36C) (SAE 4330 Modified) Annealed	/1/
SAE AMS 5329	-	Steel Castings, Sand, 0.80cr 1.8ni 0.35mo (0.28-0.36c) Annealed	Withdrawn 2000 /1/
SAE AMS 5330	1987	Steel Castings, Investment 0.80Cr - 1.8Ni - 0.35Mo (0.38 - 0.46C) (SAE 4340 Modified) Annealed	Withdrawn 1998 /1/
SAE AMS 5331	1987	Steel, Sand, Castings 0.82Cr - 1.8Ni - 0.35Mo (0.38 - 0.46C) (SAE 4340) Normalized and Tempered	Withdrawn 1996 /1/
SAE AMS 5333	2007	Steel, Investment Castings 0.50Cr - 0.55Ni - 0.25Mo (0.11 - 0.17C) (SAE 8615) Normalized	/1/
SAE AMS 5334	2007	Steel, Investment Castings 0.50Cr - 0.55Ni - 0.20Mo (0.25 - 0.35C) (SAE 8630 Mod) Normalized and Tempered	/1/

Corrosion-Resistant Investment Steel Castings

The SAE AMS standards include numerous specifications for corrosion-resistant investment steel castings, which are critical for applications requiring both precision and resistance to harsh environments:

Table 3. Continued Steel Casting Standards - Corrosion-Resistant Types

Standard Number	Last version	Description	Status
SAE AMS 5336	2006	Steel, Investment Castings 0.95Cr - 0.20Mo (0.25 - 0.35C) (SAE 4130 Mod) Normalized or Normalized and Tempered (Composition	/1/
SAE AMS 5337	2007	Steel, Maraging, Investment Castings, 18.5Ni - 9.0Co - 5.0Mo - 0.70Ti - 0.12Al, Vacuum Melted, Homogenized, Overaged, and Solution Heat Treated	/1/
SAE AMS 5338	2001	Steel, investment castings, 0.95Cr - 0.20Mo (0.35 - 0.45C) (SAE 4140 mod), normalized or normalized and tempered	/1/
SAE AMS 5339	2007	Steel, Maraging, Investment Castings, 17Ni - 10Co - 4.6Mo - 0.30Ti - 0.06Al, Vacuum Melted, Homogenized, Overaged and Solution Heat Treated	/1/
SAE AMS 5340	2007	Steel, Corrosion-Resistant, Investment Castings, 14Cr - 4.25Ni - 2.25Mo - 0.25Cb - 3.25Cu, Homogenization and Solution Heat Treated	/1/
SAE AMS 5341	1985	Steel Castings, Investment, Corrosion Resistant, 19.5Cr - 10.5Ni - 0.25S (Type 303), Solution Heat Treated	Withdrawn 1995 /1/
SAE AMS 5342	2006	Steel, Corrosion-Resistant, Investment Castings, 16Cr - 4.1Ni - 0.28Cb (Nb) - 3.2Cu, Homogenization, Solution, and Precipitation Heat Treated (H1100), 130 ksi (896 MPa) Tensile Strength (17-4)	/1/

Heat-Resistant and Specialized Casting Standards

For applications requiring resistance to both corrosion and elevated temperatures, the following standards apply:

Table 4. Heat-Resistant and Specialized Casting Standards

Standard Number	Last version	Description	Status
SAE AMS 5343	2006	Steel, Corrosion-Resistant, Investment Castings, 16Cr - 4.1Ni - 0.28Cb (Nb) - 3.2Cu, Homogenization, Solution, and Precipitation Heat Treated (H1000), 150 ksi (1034 MPa) Tensile Strength (17-4)	/1/
SAE AMS 5344	2007	Steel, Corrosion-Resistant, Investment Castings, 16Cr - 4.1Ni - 0.28Cb - 3.2Cu, Homogenization, Solution, and Precipitation Heat Treated (H900), 180 ksi (1241 MPa) Tensile Strength (17-4)	/1/
SAE AMS 5346	2006	Steel, Corrosion-Resistant, Investment Castings, 15Cr - 4.6Ni - 0.22Cb (Nb) - 2.8Cu, Solution and Precipitation Heat Treated (H925), 180 ksi (1241 MPa) Tensile Strength (15-5)	/1/
SAE AMS 5347	2006	Steel, Corrosion-Resistant, Investment Castings, 15Cr - 4.6Ni - 0.22Cb (Nb) - 2.8Cu, Solution and Precipitation Heat Treated (H1000) 150 ksi (1034 MPa) Tensile Strength (15-5)	/1/
SAE AMS 5348	1985	Steel Castings, Tubular, Centrifugal, Corrosion Resistant, 15Cr - 4.6Ni - 0.22 (Cb+Ta) - 2.8Cu, Solution Heat Treated	Withdrawn 1995 /1/

Table 5. Additional Specialized Steel Casting Standards

Standard Number	Last version	Description	Status
SAE AMS 5349	2007	Steel, Corrosion-Resistant, Investment Castings 13Cr Free Machining; Hardened and Tempered	/2/
SAE AMS 5350	2001	Steel, Corrosion and Moderate Heat Resistant, Investment Castings, 12.5Cr (SAE 51410), Hardened and Tempered	/1/
SAE AMS 5351	1987	Steel Castings, Sand, Corrosion and Moderate Heat Resistant 13Cr Normalized and Tempered	Withdrawn 1995 /1/
SAE AMS 5352	2007	Steel, Corrosion-Resistant, Investment Castings 17Cr - 0.55Mo (0.95 - 1.20C) Annealed	/1/
SAE AMS 5353	2007	Steel, Corrosion-Resistant, Investment Castings 16Cr - 1.8Ni - 0.08N As Cast	/1/
SAE AMS 5354	2006	Steel, Corrosion and Heat Resistant, Investment Castings 13Cr - 2.0Ni - 3.0W Hardened and Tempered	/1/

Conclusion and Additional References

This comprehensive guide to SAE AMS standards for iron and steel castings serves as a valuable reference for engineering professionals. For the most current status of any standard, consult the official SAE documentation. Understanding these standards is crucial for ensuring material compliance, quality control, and appropriate material selection for critical applications.