American Standard SAE1020

 　　SAE1015 is equivalent to 15 # steel in China, and SAE1020 is equivalent to 20 # steel in China

　　Chemical composition of SAE1020 carbon structural steel: SAE1020 steel is a high-quality carbon structural steel with low mechanical strength, good plasticity and toughness. It is easy to mold and form in the cold state, easy to cut, and has good welding performance. To improve surface hardness, carburization and cyanide treatment can be carried out. Used for manufacturing welded parts, cold stamped parts, forgings, and carburized parts with low strength, such as bolts, washers, partitions, shells, etc.

　　Chemical composition:

　　Carbon C: 0.16-0.22 Silicon Si: 0.15-0.35 Manganese Mn: 0.60-0.90 Sulfur S: ≤ 0.050 Phosphorus P: ≤ 0.040 Chromium Cr: ≤ 0.20 Nickel Ni: ≤ 0.25 Copper Cu: ≤ 0.25





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