Dab tsi yog cov khoom muaj pes tsawg leeg ntawm 304 stainless hlau?
Tso lus
Rau 304 stainless hlau, Ni lub hauv paus hauv nws cov muaj pes tsawg leeg yog qhov tseem ceeb, uas ncaj qha txiav txim siab corrosion ntawm 304 stainless hlau thiab nws cov nqi.
Cov ntsiab lus tseem ceeb tshaj plaws hauv 304 yog Ni thiab Cr, tab sis lawv tsis txwv rau ob lub ntsiab lus no. Cov kev cai tshwj xeeb yog teev los ntawm cov qauv khoom. Qhov teeb meem kev txiav txim siab hauv kev lag luam ntseeg tias ntev npaum li cov ntsiab lus Ni yog siab dua 8% thiab cov ntsiab lus Cr ntau dua 18%, nws tuaj yeem suav tias yog 304 stainless hlau. Qhov no yog vim li cas kev lag luam hu ua hom stainless hlau 18/8 stainless hlau. Qhov tseeb, cov qauv khoom lag luam muaj cov kev cai meej heev rau 304, thiab cov qauv khoom no muaj qee qhov sib txawv rau cov duab sib txawv ntawm stainless hlau. Hauv qab no yog qee cov qauv khoom siv thiab kev sim.
Txhawm rau txiav txim siab seb cov khoom puas yog 304 stainless hlau, nws yuav tsum ua kom tau raws li qhov yuav tsum tau muaj ntawm txhua lub ntsiab lus hauv cov qauv khoom, tsuav yog ib qho tsis tau raws li, nws tsis tuaj yeem hu ua 304 stainless hlau.
1, ASTM A276 (Standard Specification rau Stainless Hlau Bars thiab Shapes)
|
304 |
C |
Mn |
P |
S |
Si |
Cr |
Ni |
|
txheem,% |
Tsawg dua lossis sib npaug rau 0.08 |
Tsawg dua lossis sib npaug rau 2.00 |
Tsawg dua lossis sib npaug rau 0.045 |
Tsawg dua lossis sib npaug rau 0.030 |
Tsawg dua los yog sib npaug rau 1.00 |
18.0–20.0 |
8.0-11.0 |
2, ASTM A240 (Chromium thiab Chromium-Nickel Stainless Hlau Phaj, Sheet, thiab Sawb rau Siab essels thiab rau General Applications)
|
304 |
C |
Mn |
P |
S |
Si |
Cr |
Ni |
N |
|
txheem,% |
Tsawg dua lossis sib npaug rau 0.07 |
Tsawg dua lossis sib npaug rau 2.00 |
Tsawg dua lossis sib npaug rau 0.045 |
Tsawg dua lossis sib npaug rau 0.030 |
Tsawg dua lossis sib npaug rau 0.75 |
17.5–19.5 |
8.0–10.5 |
Tsawg dua lossis sib npaug rau 0.10 |
3, JIS G4305 (txias-rolled stainless hlau phaj, ntawv thiab sawb)
|
TIAB SA 304 |
C |
Mn |
P |
S |
Si |
Cr |
Ni |
|
txheem,% |
Tsawg dua lossis sib npaug rau 0.08 |
Tsawg dua lossis sib npaug rau 2.00 |
Tsawg dua lossis sib npaug rau 0.045 |
Tsawg dua lossis sib npaug rau 0.030 |
Tsawg dua los yog sib npaug rau 1.00 |
18.0–20.0 |
8.0-10.5 |
4, JIS G4303 (Stainless hlau tuav)
|
TIAB SA 304 |
C |
Mn |
P |
S |
Si |
Cr |
Ni |
|
txheem,% |
Tsawg dua lossis sib npaug rau 0.08 |
Tsawg dua lossis sib npaug rau 2.00 |
Tsawg dua lossis sib npaug rau 0.045 |
Tsawg dua lossis sib npaug rau 0.030 |
Tsawg dua los yog sib npaug rau 1.00 |
18.0–20.0 |
8.0-10.5 |
