I-Saky Steel ivele i-440 yoqondakala u-Martional Staines Staines Staines kunye neepleyiti 440A, 440B, 440C
I-Aisi 440A, ayingabi-S44002, uJIS MUS440A, W.-NRNR. 1.4109 (Din X70ccrlo15) Iphepha lensizi yensimbi, iipleyiti, iiflethi
I-Aisi 440B, ayingabi-S44003, uJIS MUS440B, W.-NRNR. 1.4112 (Din X90ccrlov18) Iphepha lensizi le-Staines, iipleyiti, iiflethi
I-Aisi 440C, ayingabi-i44004, uJIS MUS440C, W.-NRD. 1.4125 (Din X105CRO17) I-Staines Steeds, iipleyiti, iiflethi
I-440A 440B 440C Inxalenye yemichiza:
| Ibanga | C | Si | Mn | S | P | Cr | Ni | Mo |
| 440A | 0.60 ~ 0.75 | ≤1 | ≤1 | ≤0.030 | ≤0.040 | 16.00 ~ 18.00 | - | ≤0.75 |
| I-440b | 0.85 ~ 0.95 | ≤1 | ≤1 | ≤0.030 | ≤0.035 | 16.00 ~ 18.00 | ≤0.60 | ≤0.75 |
| I-440c | I-0.95 - 1.20 | ≤1 | ≤1 | ≤0.030 | ≤0.040 | 16.00 ~ 18.00 | - | ≤0.75 |
Umxholo we-carbon kunye nobunzima be-440A-440B-440C inyuke ngokulandelelana kwi-ABC (i-0.75%, i-B-0.9%). I-440c sisitya esihle kakhulu esinencasa esingenasiseko esinobunzima be-56-58 RC. Ezi ziqwenga zintathu zinokumelana nokunganyangeki okuhle, i-440a yeyona ilungileyo, kwaye i-440c iseyeyona iphantsi. I-440c ixhaphake kakhulu. Ukuqulunqwa kwekhemikhali yentsimbi engenasitayile engenasitali kubonakaliswa ngokongezwa kwezinto ezinjenge molybdenum, i-tungsten, i-niobium, kunye ne-niobium ngokusekwe kwi-0.1% ye-CR. Kuba isakhiwo se-tishu sisimo esigxile kumzimba, amandla aphosa ubukhali kumaqondo obushushu aphezulu. Ngaphantsi kwe-600 ° C, amandla obushushu obuphezulu kuxhomekeke kuzo zonke iintlobo zentsimbi ezingenasiseko, namandla aqhekezayo nawo asezantsi. I-440A ihamba ngokugqibeleleyo kwaye ikhubazekile iipropathi kunye nobunzima obuphezulu. Inamandla aphezulu kune-440b yentsimbi kunye ne-440c yentsimbi. I-440B isetyenziselwa izixhobo zokusika, izixhobo zokulinganisa, iibheringi kunye neevalves. Inobunzima obuninzi kune-440A yentsimbi kunye nobunzima obuphezulu kune-440c yentsimbi. I-440C inobuqili obuphezulu bazo zonke iintsimbi ezingenasinyithi kunye nobushushu obungenabushushu kwaye zisetyenziselwa i-nozzles kunye nebheringi. I-440F libanga lensimbi eliphucula iipropathi ezisikiweyo ze-440c zentsimbi kwiileyiti ezenzekelayo.
IXESHA LOKUQALA: Aug-17 ukuya ku-1718