Stainless hlau - Qib 253MA (UNS S30815)

253MA yog qib sib txuas cov khoom siv zoo heev ntawm qhov kub thiab txias nrog kev yooj yim ntawm kev tsim. Nws tiv taus oxidation ntawm qhov kub txog li 1150 ° C thiab tuaj yeem muab kev pabcuam zoo tshaj rau Qib 310 hauv carbon, nitrogen thiab sulfur uas muaj cua.

Lwm qhov kev tsim tshwj xeeb uas suav nrog qib no yog 2111HTR.

253MA muaj cov ntsiab lus tsis tshua muaj npib tsib xee, uas ua rau nws muaj txiaj ntsig zoo hauv kev txo cov sulphide cua thaum piv rau cov nickel alloys siab thiab qib 310. Kev suav nrog siab silicon, nitrogen thiab cerium cov ntsiab lus muab cov hlau zoo oxide stability, siab kub siab zog thiab zoo heev. tsis kam mus rau sigma theem nag lossis daus.

Cov qauv austenitic muab cov qib no zoo heev toughness, txawm mus rau cryogenic kub.

Cov khoom tseem ceeb

Cov khoom no tau teev tseg rau cov khoom lag luam tiaj tus (phaj, ntawv thiab coil) raws li Qib S30815 hauv ASTM A240 / A240M. Zoo sib xws tab sis tsis tas yuav zoo ib yam khoom yog teev rau lwm yam khoom xws li yeeb nkab thiab bar hauv lawv cov specifications.

Kev sib xyaw

Cov khoom sib xyaw ua ke rau qib 253MA stainless hlau tau muab rau hauv rooj 1.

Table 1.Kev sib xyaw ua ke rau 253MA qib stainless hlau