Hlau AlloysCov hlau sib xyaw ua ke ntawm cov hlau sib xyaw nrog lwm cov ntsiab lus los txhim kho cov khoom zoo li lub zog, corrosion tsis kam, hardness, thiab ductility. Ob lub ntsiab pawg yoghlauthiabNrum Hlau, txhua tus nrog ntau yam subtypes.
🔧 1. Hlau Alloys (Hlau + Carbon + Lwm yam)
a. Cov Hlau Hlau
Tsawg Daim Hlau (<0.3% C): Ductile, weldable, used in structural applications.
Nruab Nrab Cov Hlau({{{{{0}}}}. 3-0.6% c): Muaj zog, siv hauv Automotive Qhov Chaw.
Cov Roj Hlau Siab (>{{0 {0}}. 6% c): tawv thiab nkig, siv hauv cov cuab yeej thiab springs.
b. Alloy Steel
Muaj cov ntsiab xws li chromium, npib tsib xee, molybdenum, vanadium.
Txhim kho lub zog, tawv, thiab hnav tsis kam.
Cov Ntawv Thov: Zog, Pipelines, cov khoom siv tub rog.
c. Stainless hlau
Muaj ntau dua los yog sib npaug rau 10.5% chromium.
Zoo heev corrosion.
Hom:
AUSTENITIC(piv txwv li, 304, 316): Tsis muaj xim, corrosion-resistant.
Ferritic(piv txwv li, 430): sib nqus, sib nqus, qis corrosion tsis kam.
Tus ntaus rog(piv txwv li, 410): nyuaj, siv nyob rau hauv riam thiab turbines.
d. Tuam Hlau Hlau
Siab hardness thiab hnav tsis kam.
Siv rau tej cuab yeej, tuag, pwm.
⚙️ 2. Cast Iron Alloys (Iron + >2% carbon)
a. Grey cam khwb cia hlau
Graphite flakes, zoo machinity, docation damping.
Siv hauv cov cav thaiv, tshuab siv rau tshuab.
b. Dawb nrum hlau
Nyuaj, nkig, hnav zoo.
Siv nyob rau hauv cov kev siv-resistant applications zoo li zeb liners.
c. Ductile (nodular) cam khwb cia hlau
Spherical graphite suav nrog, siab zog thiab ductility.
Siv rau hauv qhov chaw siv tsheb, kav dej.
d. Mallable cam khwb cia hlau
Sov-kho cov hlau dawb.
Sib txuas lub zog thiab machinuab.
🧲 3. Lwm cov hlau-based alloys
a. WRUGHT HLAU
Cov ntsiab lus muaj roj carbon tsawg heev, fibrous qauv.
Keeb kwm siv nyob rau hauv rooj vag thiab kev tsheb nqaj hlau.
b. Superalloys (Hlau-Npib-Npib lossis Hlau-Cobalt Raws)
Lub zog zoo tshaj plaws ntawm kev kub siab.
Siv nyob rau hauv aerospace thiab turbines.
✅ Cov Lus Qhia Tshaj:
| Ntaus | Ntsiab lus Ntsiab | Cov Khoom Siv | Kev Siv Ntau |
|---|---|---|---|
| Cov Hlau Hlau | Fe + C | Lub zog, raug nqi | Kev Tsim Kho, Cov Cuab Yeej |
| Alloy Steel | Fe + C + Ni, CR, thiab lwm yam. | Muaj zog, hnav-resistant | Zog, tsheb, Pipelines |
| Stainless hlau | Fe + Cr (Loj dua los yog sib npaug rau 10.5%) | Corrosion-resistant | Chav ua noj ua chav, khoom siv kho mob |
| Tuam Hlau Hlau | Fe + w, v, mo, thiab lwm yam. | Tawv, cua sov-resistant | Txiav cov cuab yeej, pwm |
| Grey cam khwb cia hlau | Fe + C + Si | Zoo damping, machinability | Lub cav thaiv, cov hauv paus |
| Zas cam khwb cia hlau | Fe + C + mg | Muaj zog thiab ductile | Cov kav dej, qhov chaw tsheb |
| WRUGHT HLAU | Cov Hlau Hlau + Slag | Tawv siab, ductile | Hniav Ironwork |
