Irin le ti wa ni pin si kekere erogba, irin, alabọde erogba irin ati ki o ga erogba, irin.Kekere erogba, irin - erogba akoonu jẹ gbogbo kere ju 0.25%;irin erogba alabọde - akoonu erogba jẹ gbogbogbo laarin 0.25 ati 0.60%;irin erogba giga - akoonu erogba ni gbogbogbo tobi ju 0.60%.
Iwọn alaṣẹ: orilẹ-ede mi Taiwan CNS boṣewa irin nọmba S20C, German DIN boṣewa ohun elo 1.0402, German DIN boṣewa irin nọmba CK22/C22.British BS boṣewa irin nọmba IC22, French AFNOR boṣewa irin nọmba CC20, French NF boṣewa irin nọmba C22, Italian UNI boṣewa irin nọmba C20/C21, Belgium NBN boṣewa irin nọmba C25-1, Sweden SS boṣewa irin nọmba 1450, Spain UNE boṣewa irin No. F.112, American AISI/SAE boṣewa irin No.. 1020, Japanese JIS boṣewa irin No.. S20C/S22C.
Ohun elo kemikali: Erogba C: 0.32～0.40 Silicon Si: 0.17～0.37 Manganese Mn: 0.50 darí-ini : Agbara fifẹ σb (MPa): ≥530 (54) Agbara ikore σs (MPa): ≥315 (32) Elongation δ5 (%): ≥20 Agbegbe isunki ψ (%): ≥45 Ipa agbara Akv (J): ≥ 55 ikolu toughness iye αkv (J/cm²): ≥69 (7) Lile: unheated ≤197HB Ayẹwo iwọn: iwọn ayẹwo jẹ 25mm Iṣẹ imọ-ẹrọ Boṣewa orilẹ-ede: GB699-1999
