Ukuqulunqakukwenziwa kwentsimbi yentsimbi kwibillet ngehamile okanye ngomatshini woxinzelelo; Ngokokwakheka kweekhemikhali, intsimbi inokwahlulwa ibe yintsimbi yecarbon kunye nealloy steel.

(1) Ukongeza kwi-iron kunye nekhabhoni, ukubunjwa kweekhemikhali ze-carbon steel nazo ziqulethe izinto ezifana ne-manganese silico, isulfure kunye ne-phosphorus, phakathi kwayo isulfure kunye ne-phosphorus yinto engcolileyo eyingozi. I-Manganese silico yi-deoxidized element eyongezwe kwi-carbon steel kwinkqubo yokwenza intsimbi. Ngokomxholo wekhabhoni owahlukileyo kwintsimbi yekhabhoni, ihlala yohlulwe ngokwezi ntlobo zintathu zilandelayo:
Insimbi ye-carbon ephantsi: Umxholo wekhabhoni ngu-0.04% -0.25%;
Intsimbi yekhabhoni ephakathi: 0.25% -0.55% umxholo wekhabhoni;
Intsimbi yekhabhoni ephezulu: umxholo wekhabhoni omkhulu kune-0.55%
(2) ingxubevange yentsimbi yongeza enye okanye izinto ezininzi zokuxuba kwintsimbi yekhabhoni kunye nentsimbi epholileyo, intsimbi enjalo iqulathe zombini njengesilicon manganese ialloy element okanye izinto eziqinileyo, ikwaqulathe ezinye izinto ezidibanisayo, njengenickel chromium molybdenum vanadium titanium tungsten cobalt aluminium zirconium niobium. nezinto zomhlaba ezinqabileyo etc. Ukongeza, ezinye calcium ingxubevange intsimbi iqulathe boron kunye nitrogen etc. Nonmetal element ngokwesixa esipheleleyo umxholo ingxubevange element kwintsimbi, yahlulwe kwezi ndidi zintathu zilandelayo:

Insimbi ye-alloy ephantsi: umxholo we-alloying element ungaphantsi kwe-3.5%;
Insimbi ye-alloy ephakathi: umxholo we-alloying element ngu-3.5-10%;
Intsimbi ephezulu ye-alloy: umxholo wento ehlanganisiweyo iyonke ingaphezulu kwe-10%
Ngokwenani lezinto ezahlukeneyo ze-alloy eziqulethwe kwintsimbi ye-alloy, nazo zinokwahlulwa zibe yintsimbi ye-binary ternary kunye ne-multi-element alloy steel ukongeza, ngokweentlobo zezinto zealloy eziqulethwe kwintsimbi, zinokwahlulwa zibe yintsimbi yemanganese, intsimbi yechromium, intsimbi boron, nesilicon intsimbi, manganese intsimbi, chromium manganese intsimbi, intsimbi molybdenum, chromium molybdenum, tungsten vanadium intsimbi njalo njalo.