321 seamless steel yeeb nkabyog tsim los ntawm kev ntxiv Ti keeb rau 304 seamless steel yeeb nkab los tiv thaiv grain ciam corrosion; nws yog tsim rau siv ntawm qhov kub thiab txias ntawm 430 degree -900 degree . Ib qib ntawm stainless hlau ua raws li American ASTM cov qauv. Sib npaug rau Tuam Tshoj 0Cr18Ni10Ti stainless hlau yeeb nkab. Feem ntau yog siv nyob rau hauv dav hlau, cov kav dej, thiab boiler nruas. 321 seamless stainless hlau yeeb nkab tau zoo heev kub ntxhov siab kev ua tau zoo thiab kub creep kuj. Cov khoom siv dag zog zoo dua li 304 seamless steel yeeb nkab.
321 cua sov-resistant stainless hlau kav yog tsuas yog siv los ua cov pa roj carbon zoo steel hlau, alloy structural steel thiab stainless kub-resistant steel seamless steel kav rau chav boiler kav dej siab thiab siab dua. Cov kav dej boiler no raug rau qhov kub thiab txias. Kev ua haujlwm thiab cov kav dej kuj tseem yuav raug oxidation thiab corrosion nyob rau hauv qhov kev txiav txim ntawm high-temperature flue gas thiab dej vapor. Yog li ntawd, cov kav hlau steel yuav tsum muaj lub zog ntev, siab oxidation tsis kam, thiab kev ruaj ntseg zoo, xws li cov kav dej hydraulic.
Qib Specification Sib piv ntawm 321 Stainless Steel Pipes
| Qib | UNS No | Laus British | Euronorm | Swedish SS | Japanese JIS | ||
| BS | En | Tsis muaj | Lub npe | ||||
| 321 | S32100 | 321S31 | 58B, 58C | 1.4541 | X6CrNiTi18-10 | 2337 | TIAB SA 321 |
| 321H | S32109 | 321S51 | - | 1.4878 | X10CrNiTi18-10 | - | SUS 321 H |
ASTM A312 TP 321 / 321H stainless hlau yeeb nkab muaj pes tsawg leeg
| Qib | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
| 321 | min. max |
- 0.08 |
2.00 | 0.75 | 0.045 | 0.030 | 17.0 19.0 |
- | 9.0 12.0 |
0.10 |
Stainless hlau 321 Pipes
Kev kho cua sov ntawm 321 Stainless Hlau Yeeb thiab Tubes
Thaum tshav kub kub mus rau 950-1120 degree thiab txias sai sai rau qhov siab tshaj plaws corrosion kuj. Kev kho kom ruaj khov: cua sov mus rau 870-900 degree rau txhua 25mm thickness thiab tuav rau 1 teev, ces cua txias. Rau qhov kev pabcuam hnyav tshaj plaws (siab dua 425 degree), stabilization yog pom zoo, tshwj xeeb tshaj yog rau cov ntaub ntawv annealed nyob rau sab sauv kawg ntawm lub annealing kub ntau yam. Tshav kub rau 700 degree thiab tuav rau 1-2 teev, ces cua txias. Cov qib no tsis tuaj yeem ua kom tawv nqaij los ntawm kev kho cua sov.
GNEE Cov kev pabcuam muaj nqis ntxiv
UT (Ultrasonic kuaj)
AR (Raws li Kub Rolled nkaus xwb)
TMCP (Thermal Mechanical Control Processing)
N (Normalized)
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