– Carbon (C): 0.38-0.45%
– Silicon (Si): 0.15-0.35%
– Manganese (Mn): 0.60-0.90%
– Phosphorus (P): ≤0.025%
– Sulfur (S): ≤0.035%
– Chromium (Cr): 0.90-1.20%
– Molybdenum (Mo): 0.15-0.30%
These elements contribute to the steel’s overall properties and performance, including its heat treatment characteristics and machinability. The specific chemical composition may vary slightly depending on the manufacturer and thermal processing of the steel.
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