Stellite 4
Paub meej
Stellite 4 (UNS R30404), tsim los ntawm Lork Group, yog cobalt -chromium-tungsten hardfacing alloy yam ntxwv los ntawm siab tungsten- rau -carbon ratio. Nws muaj qhov tshwj xeeb siab - kub lub zog thiab corrosion kuj.
Khoom Description
Lub siab -zoo Stellite 4 tsim los ntawm Lork Group yog cobalt -chromium-tungsten-raws li hardfacing alloy. Nws cov khoom tso nws nyob nruab nrab ntawm Stellite 6 thiab Stellite 12: nws muaj kev hnav zoo dua piv rau Stellite 6 thiab muaj zog ntau dua li Stellite 12, thaum tseem ua rau pom kev zoo dua corrosion kuj nyob rau hauv oxidizing acids (xws li nitric thiab sulfuric acids) dua Stellite 6. Nws yog haum rau kev khiav hauj lwm tej yam kev mob nrog rau ib txhij hnav thiab corrosion kuj. Nws pom daim ntawv thov dav dav thoob plaws ntau qhov chaw, suav nrog cov kub extrusion tuag, twj tso kua mis, lub tes tsho, thiab qhuav{13}}cov khoom siv roj teeb ntawm tes.
Cov qauv sib xws
- Castings / General -cov hom phiaj:UNS R30404
- Castings:ASTM B426 / B659 Cov Lus Qhia
- General aerospace:TIAB SA 5785
Stellite 4 Cov Khoom Siv Tshuaj
|
Lub ntsiab |
Cov ntsiab lus (%) |
|
Co |
50.0 |
|
Cr |
30.0-31.0 |
|
W |
13.5-14.0 |
|
C |
0.7-1.0 |
|
Ni |
Tsawg dua lossis sib npaug li 2.5-3.0 |
|
Fe |
Tsawg dua lossis sib npaug li 1.0-3.0 |
|
Si |
Tsawg dua lossis sib npaug li 1.0-1.2 |
|
Mo |
Tsawg dua los yog sib npaug rau 1.0 |
Stellite 4 Lub cev muaj zog
|
Performance Indicators |
Yam khoom muaj nqis |
|
Qhov ntom |
8.55-8.80g / cm³ |
|
Melting Range |
1246 - 1356 degree |
|
Hardness |
40 - 50 HRC (raws li -nrawm) |
|
Thermal conductivity |
Kwv yees . 14.7 - 14.82 W / (m·K) |
|
Coefficient ntawm Thermal Expansion (20-400 degree) |
Kwv yees . 12.6 × 10⁻⁶/K |
|
Modulus ntawm Elasticity |
Kwv yees li . 210 GPa |
Stellite 4 Mechanical zog
|
Tensile zog |
Kwv yees . 922 - 1050 MPa |
|
Yield zog |
Kwv yees li . 750 - 819 MPa |
|
Elongation |
Kwv yees li . 12% |
Daim ntawv thov Stellite 4
- Kub- nias thiab kub-extrusion tuag rau tooj liab / aluminium alloys
- Roj teeb pwm (rau qhuav- cell manufacturing)
- Twj lub tes tsho, impellers, thiab hnav- cov nplhaib sib khi uas tiv taus
- Siab -kub valve sealing nto thiab lub rooj zaum valve
- Pom cov hniav thiab shear hniav