I-Saky Steel ivelisa i-440 series hardenable martensitic steel stainless sheets & plates 440A, 440B, 440C
AISI 440A, UNS S44002, JIS SUS440A, W.-nr. 1.4109 ( DIN X70CrMo15 ) amacwecwe ensimbi engenasici, iipleyiti, iiflethi
AISI 440B, UNS S44003, JIS SUS440B, W.-nr. 1.4112 ( DIN X90CrMoV18 ) amacwecwe ensimbi engenasici, iipleyiti, iiflethi
AISI 440C, UNS S44004, JIS SUS440C, W.-nr. 1.4125 ( DIN X105CrMo17 ) amacwecwe ensimbi engenasici, iipleyiti, iiflethi
440A 440B 440C icandelo lekhemikhali:
| 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 |
| 440B | 0.85 ~ 0.95 | ≤1 | ≤1 | ≤0.030 | ≤0.035 | 16.00-18.00 | ≤0.60 | ≤0.75 |
| 440C | 0.95 - 1.20 | ≤1 | ≤1 | ≤0.030 | ≤0.040 | 16.00-18.00 | - | ≤0.75 |
Umxholo wekhabhoni kunye nobunzima be-440A-440B-440C bunyuke ngokulandelelana ukusuka kwi-ABC (A-0.75%, B-0.9%, C-1.2%). I-440C yinto enhle kakhulu ephezulu yensimbi engenasici kunye nobunzima be-56-58 RC. Ezi ntsimbi zintathu zinokumelana nokugqwala okuhle, i-440A iyona nto ibhetele, kwaye i-440C yeyona iphantsi. I-440C ixhaphake kakhulu. Ukubunjwa kweekhemikhali zensimbi engenasici ye-martensitic kubonakaliswe ngokongezwa kwezinto ezifana ne-molybdenum, i-tungsten, i-vanadium, kunye ne-niobium esekelwe kwindibaniselwano yamacandelo ahlukeneyo e-0.1% -1.0% C kunye ne-12% -27% Cr. Ekubeni isakhiwo se-tissue singumzimba we-cubic structure, amandla ahla ngokukhawuleza kumaqondo aphezulu. Ngaphantsi kwe-600 ° C, amandla obushushu aphezulu ngawona aphakamileyo kuzo zonke iintlobo zentsimbi engenasici, kwaye amandla okurhubuluza ngawona aphezulu. I-440A ineempawu ezibalaseleyo zokucima kunye nokuqina kunye nobunzima obuphezulu. Inokuqina okuphezulu kune-440B yentsimbi kunye nentsimbi ye-440C. I-440B isetyenziselwa izixhobo zokusika, izixhobo zokulinganisa, iibheringi kunye neevalvu. Inobunzima obuphezulu kune-440A yentsimbi kunye nokuqina okuphezulu kune-440C yentsimbi. I-440C inobunzima obuphezulu bayo yonke insimbi engenasici kunye nentsimbi ekwazi ukumelana nobushushu kwaye isetyenziselwa imilomo kunye neebheringi. I-440F ibakala lentsimbi eliphucula iimpawu zokusika ngokulula ze-440C zentsimbi yeentambo ezizenzekelayo.
Ixesha lokuposa: Aug-17-2018