This specification covers a low-alloy steel in the form of investment castings. These castings have been used typically for small structural parts of intricate design requiring heat treatment to minimum tensile strengths up to 175 ksi (1207 MPa), but usage is not limited to such applications.
SAE AMS5338G-2013 Referenced Document
ASTM A370-12 Standard Test Methods and Definitions for Mechanical Testing of Steel Products*, 2024-04-20 Update
ASTM E1417-05 Standard Practice for Liquid Penetrant Testing*, 2024-04-20 Update
ASTM E1444-05 Standard Practice for Magnetic Particle Testing*, 2024-04-20 Update
ASTM E1742-08 Standard Practice for Radiographic Examination*, 2024-04-20 Update
ASTM E350-12 Standard Test Methods for Chemical Analysis of Carbon Steel, Low-Alloy Steel, Silicon Electrical Steel, Ingot Iron, and Wrought Iron*, 2024-04-20 Update
SAE AMS5338G-2013 history
2022SAE AMS5338H-2022 Steel, Investment Castings 0.95Cr - 0.20Mo (0.35 - 0.45C) (4140 Mod) Normalized or Normalized and Tempered
2017SAE AMS5338H-2017 Steel@ Investment Castings 0.95Cr - 0.20Mo (0.35 - 0.45C) (4140 Mod) Normalized or Normalized and Tempered (UNS J14046)
2013SAE AMS5338G-2013 Steel, Investment Castings, 0.95Cr - 0.20Mo (0.35 - 0.45C) (SAE 4140 Mod), Normalized or Normalized and Tempered