16Mo3 thiab 15Mo3 yog qhov tseem ceeb tib yam chromium-molybdenum (Cr-Mo) boiler / siab hlab ntsha hlau, nrog 16Mo3 yog cov European niaj hnub (EN 10028-2) tsim los hloov cov laus German (DIN 17155) 15Mo3, sib faib cov khoom sib xws thiab cov khoom sib xws (1541) 16Mo3 feem ntau nta nruj tswj ntawm impurities xws li Phosphorus (P) thiab Sulfur (S) rau kev ua tau zoo me ntsis ntawm cov temps siab, ua rau nws tus qauv nyiam rau kev tsim kho tshiab.
Tshuaj muaj pes tsawg leeg:
| Qib | C | Si | Mn | P | S | Cr | Cu | Mo | Ni | N |
| 15 hmo 3 | 0.12-0.20 | 0.10-0.35 | 0.40-0.90 | Tsawg dua lossis sib npaug li 0.035 | Tsawg dua lossis sib npaug li 0.030 | Tsawg dua lossis sib npaug li 0.25 | Tsawg dua los yog sib npaug li 0.30 | Tsawg dua los yog sib npaug li 0.30 | ||
| 16 hmo 3 | 0.12-0.20 | Tsawg dua los yog sib npaug li 0.35 | 0.40-0.90 | Tsawg dua lossis sib npaug li 0.025 | Tsawg dua lossis sib npaug li 0.010 | Tsawg dua los yog sib npaug li 0.30 | Tsawg dua los yog sib npaug li 0.30 | 0.25-0.35 | Tsawg dua los yog sib npaug li 0.30 | Tsawg dua lossis sib npaug li 0.012 |
Mechanical zog:
| Qib | Yield zog | Tensile zog | Elongation |
| (Mpa) | (MPa) | (%) | |
| 15 hmo 3 | Ntau dua lossis sib npaug li 275 | 440-590 | Ntau tshaj los yog sib npaug rau 20 |
| 16 hmo 3 | Ntau dua lossis sib npaug li 275 | 440-590 | Ntau dua lossis sib npaug 22 |
16Mo3 siab lub nkoj hlau, tsim los ntawm cov hlau tooj 1.5415, yog European (DIN EN) qib steel rau alloy steels . 16Mo3 siab nkoj steel phaj yog Cr-Mo alloy steel. Qhov sib ntxiv ntawm molybdenum (Mo) tsis tsuas yog txhim kho qhov tsis kam ntawm 16Mo3 siab lub nkoj steel phaj rau pitting corrosion, tab sis kuj tseem txhim khu kev nkag siab ntawm 16Mo3 siab hlab ntsha steel phaj ntawm qhov kub thiab txias. Cov chromium (Cr) txhim kho qhov tsis kam ntawm 16Mo3 siab nkoj steel phaj kom siab -kub hydrogen nres thiab graphitization.
Qhov tseem ceeb sib txawv & Kev sib raug zoo
Txuj: 15Mo3 yog los ntawm DIN 17155; 16Mo3 yog los ntawm EN 10028-2.
Superseded: EN 10028-2 (16Mo3) hloov DIN 17155 (15Mo3) nyob ib ncig ntawm 1990s / 2000s.
Qhov sib npaug: Lawv suav tias yog qib sib npaug, feem ntau hloov pauv tau hauv kev tsim, tab sis 16Mo3 yog tus qauv tam sim no.
Chemical Composition: 16Mo3 feem ntau muaj kev txwv nruj dua ntawm cov ntsiab lus xws li Phosphorus (P) thiab Sulfur (S), ua rau cov khoom siv kho kom zoo me ntsis, tshwj xeeb tshaj yog nkag los ntawm qhov kub siab (txog ~ 500 degree).
Summary of Properties (Zoo sib xws)
Hom: Tsawg- alloy Mo- hlau rau cov hlab ntsha siab / boilers.
Kev kho cua sov: Ob qho tib si feem ntau muab cov khoom ua kom zoo.
Kev siv: fais fab nroj tsuag, petrochemicals, siab -temp kev pab cuam.
Weldability: Zoo weldability.
Hauv qhov tseem ceeb, yog tias daim duab qhia txog 15Mo3, feem ntau koj tuaj yeem siv 16Mo3 raws li nws qhov kev hloov pauv, hloov kho tshiab, muab qhov zoo dua qub vim muaj kev tswj tsis zoo.
