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820A16 is a high-strength steel alloy with a chemical composition of 0.17-0.23% carbon, 1.00-1.40% manganese, 0.50% max silicon, 0.035% max phosphorus, and 0.35% max sulfur. When compared to other high-strength steel alloys such as AISI 4140 or ASTM A709 Grade 50, it offers similar mechanical properties with a tensile strength of 850-1000 MPa and a yield strength of 690-740 MPa. However, 820A16 steel has a slightly higher carbon content and lower manganese content compared to AISI 4140, resulting in differences in hardenability and strength. Additionally, 820A16 steel has lower alloying elements compared to ASTM A709 Grade 50, making it more susceptible to cracking and brittleness in certain applications.
820A16 Steel grade
1699874056