Mar 23, 2023
The Corresponding Of 40CrNiMoA, 4340 And SNCM439
Chrome-Moly low alloy steel series contains 0.5% – 9% Cr and 0.5% – 1% Mo and lower than 0.20% carbon. 40CrNiMoA, 4340 and SNCM439 are the low alloy chromoly steel materials from the different standards. 40CrNiMoA steel is a Chinese standard chromium-molybdenum high strength steel with good hardenability and toughness. 4340 and SNCM439 are standards from American and Japanese respectively. In…
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