Cov khoom ntawm C4 Hastelloy -} kev paub

1.What cov khoom yog c4 hastelloy?

C4 Hastelloy (tsis muaj N06455) yog aNickel - chromium - molybdenum (ni}} mo) SuperalloyCais rau Hastelloy tsev neeg, tsim tawm rau kev kho kom xeb tsis zoo nyob rau ib puag ncig cua. Nws yog wrought, tau cov khoom -} {}}} Cov ntsiab lus ntawm cov pa roj carbide, tsim kom txo qis carbide nag lossis kub {{{}} kub nthuav tawm. This material excels in resisting pitting, crevice corrosion, and stress corrosion cracking (SCC) in media such as sulfuric acid, hydrochloric acid, phosphoric acid, and chloride-containing solutions. Nws yog dav siv hauv kev ua tshuaj lom neeg, cov chaw ua tshuaj, petrochemicals, thiab lwm yam kev lag luam uas xav tau kev txhim khu kev qha hauv kev ua kom muaj mob hnyav.

2.What yog cov tshuaj lom neeg muaj pes tsawg leeg ntawm c4 hastelloy?

Cov tshuaj lom neeg muaj pes tsawg leeg ntawm C4 Hastelloy yog nruj me ntsis tswj hwm kom ntseeg tau tias nws cov khoom siv corrosion, nrog cov neeg siv tshuab li hauv qab no:

Npib tsib caug (ni): 63.0-69.0% (BIB QIB, muab matrix stability thiab corrosion tsis kam)

Chromium (cr): 14.0-18.0% (txhim kho kev oxidation thiab dav corrosion tsis kam)

Molybdenum (mo): 14.0-17.0% (txhim kho kev tawm tsam rau pitting, corrosion corrosion, thiab txo cov kua qaub)

Hlau (FE): ≤3.0% (AIDS hauv cov txheej txheem tsis muaj kev cuam tshuam corrosion tsis kam)

Carbon (c): I≤0.015% (Cov pa roj carbon qis tiv thaiv nag lossis daus, tseem ceeb rau weldability thiab scc tsis kam)

Silicon (si): I≤0.08% (Rho tawm cov tshuaj Oxide me me oxide thiab txhim kho kom haum rau lub sijhawm vuam)

Manganese (MN): ≤1.0% (txhim kho kev ua haujlwm thiab txheej txheem)

Phosphorus (p): L≤0.04% (tswj kom tsis txhob muaj brittleness thiab corrosion degradation)

Sulphur (s): L≤0.03% (txo qis kom tiv thaiv kev tawg kub thiab corrosion sedeptibility)

Tungsten (w): ≤0.5% (LW lub caij nyoog, kev pab me me rau corrosion tsis kam)

info-443-448 info-440-441

3.Qhov yog lub hardness ntawm c4 hastelloy?

Lub hardness ntawm c4 hastelloy sib txawv nrog nws lub xeev kho cua sov thiab ua cov kev pabcuam, nrog cov txiaj ntsig raug xws li hauv qab no:

Annealed Xeev (raug):

Brinell Hardness (HB): 210-250 HB (sib npaug rau ~ 22-28 HRC ntawm Rockwell C Scale)

Vickers Hardness (HV): 220-260 hv

Annealing yog tus qauv kev kho cua sov rau C4 Hastelloy (Feem Ntau 1150-1200 ° C, ua raws li los ntawm nrawm Quenching). Lub xeev no ua rau qhov siab tshaj plaws ductility, kev nruj, thiab corrosion tsis kam, ua rau haum rau cov ntawv thov feem ntau.Txias -} Ua haujlwm lub xeev:

Hardness nce nrog kev ua haujlwm txias (piv txwv li, dov, Forging). Rau kev ua haujlwm txias txias, brinell hardness tuaj yeem ncav cuag 280-320 HB (30-34 HRC).

Txias ua hauj lwm txhim kho lub zog tab sis yuav txo qis ductility; Nws yog siv rau cov ntawv thov uas xav tau cov khoom siv muaj zog dua yam tsis muaj kev txi yuam kev corrosion.

Welded pob qij txha:

Welded areas typically have similar hardness to the annealed base metal (210–250 HB) when proper welding procedures (eg, low heat input, post-weld annealing if needed) are followed.

Kev siv hluav taws xob tsis zoo (piv txwv li, cov cua sov ntau dhau) yuav ua rau muaj kev nyuaj me ntsis nce rau hauv qhov kub} 2, tab sis qhov no yog qhov tsawg los ntawm alloy cov ntsiab lus muaj roj carbon tsawg.