Enwere ike kewaa ígwè n'ime obere carbon ígwè, ọkara carbon ígwè na elu carbon ígwè.Igwe carbon dị ala - ọdịnaya carbon bụ ihe na-erughị 0.25%;ọkara carbon ígwè - carbon ọdịnaya bụ n'ozuzu n'etiti 0.25 na 0.60%;elu carbon ígwè - carbon ọdịnaya bụ n'ozuzu karịa 0.60%.
Standardkpụrụ Executive: obodo m Taiwan CNS ọkọlọtọ ígwè nọmba S20C, German DIN ọkọlọtọ ihe onwunwe nọmba 1.0402, German DIN ọkọlọtọ ígwè nọmba CK22/C22.British BS ọkọlọtọ ígwè nọmba IC22, French AFNOR ọkọlọtọ ígwè nọmba CC20, French NF ọkọlọtọ ígwè nọmba C22, Italian UNI ọkọlọtọ ígwè nọmba C20/C21, Belgium NBN ọkọlọtọ ígwè nọmba C25-1, Sweden SS ọkọlọtọ ígwè nọmba 1450, Spain UNE ọkọlọtọ ígwè. Mba F.112, American AISI/SAE ọkọlọtọ ígwè No. 1020, Japanese JIS ọkọlọtọ ígwè No. S20C/S22C.
Ngwakọta kemịkalụ: Carbon C: 0.32～0.40 Silicon Si: 0.17～0.37 Manganese Mn: 0.50 n'ibu Njirimara : Ike nkwụsi ike σb (MPa): ≥530 (54) Mbelata ike σs (MPa): ≥315 (32) Elongation δ5 (%): ≥20 Mpaghara shrinkage ψ (%): ≥45 Mmetụta ike Akv (J): ≥ 55 mmetụta siri ike uru αkv (J / cm²): ≥69 (7) Isi ike: unheated ≤197HB Nlere nha: nha sample bụ 25mm Nka na ụzụ arụmọrụ mba ọkọlọtọ: GB699-1999
