Gnee steel tshwj xeeb hauv kev muab Alloy steel phaj hauv 30CrMnSiA. Yog xav paub ntxiv ntawm 30CrMnSiA steel daim hlau, thov xyuas lawv hauv qab no:
GB/T 11251 30CrMnSiA alloy steel daim hlau tshuaj muaj pes tsawg leeg:
|
Qib |
C |
Si |
Mn |
Cr |
Mo |
Ni |
W |
B |
Al |
Ti |
V |
|
30CrMnSiA |
0.28-0.34 |
0.90-1.20 |
0.80-1.10 |
0.80-1.10 |
|
|
|
|
|
|
|
GB/T 11251 30CrMnSiA alloy sheets mechanical zog:
|
Qib |
Tensile zog [Mpa] |
Elongation [%, min] |
HWB (Max) |
|
30CrMnSiA |
550-750 |
19 |
229 |
Nyob rau hauv ib puag ncig corrosive, qhov saum npoo ntawm 30CrMnSiA alloy structural steel phaj tsim cov oxide zaj duab xis ntom ntom, uas tiv taus oxidation thiab corrosion nres. Tsis tas li ntawd, cov khoom no nthuav tawm qhov zoo corrosion kuj nyob rau hauv ntau yam organic thiab inorganic corrosive media, xws li dej, nitric acid, acetic acid thiab lwm yam.
30CrMnSiA steel phaj tseem tuaj yeem tuav lub zog zoo thiab ruaj khov ntawm qhov kub thiab txias. Tom qab qhov kub thiab txias tempering kho, nws cov kev ua tau zoo tau zoo dua ntxiv. Cov khoom siv no muaj lub zog nkag siab thiab lub zog ntev ntawm qhov kub thiab txias, thiab tuaj yeem tiv taus ntau yam kev ua haujlwm nyuaj. Tsis tas li ntawd, nws muaj qhov zoo siab - kub hardness thiab siab -kub toughness, ua kom ntseeg tau thiab kev nyab xeeb nyob rau hauv siab - qhov kub thiab txias.
Vim nws txoj kev ua tau zoo heev, 30CrMnSiA cov hlau tsis tshua muaj hlau phaj yog dav siv hauv kev tsim khoom ntawm ntau yam khoom siv tub rog thiab cov khoom tseem ceeb. Piv txwv li, nws yog siv nyob rau hauv kev tsim cov qauv hull, turrets, lem thiab lwm yam tseem ceeb ntawm armored tsheb; nyob rau hauv kev tsim cov aircraft carriers thiab submarines rau cov yam ntxwv tseem ceeb; kuj tseem siv rau hauv kev tsim cov cuaj luaj thiab foob pob hluav taws rau cov khoom tseem ceeb, thiab lwm yam. Tsis tas li ntawd, nws kuj tau siv dav hauv kev tsim khoom ntawm ntau yam khoom siv tub rog, ntsuas thiab pwm tshwj xeeb thiab lwm yam precision.
