Lub hardness ntawm 2Cr13 stainless hlau yog dab tsi?

2Cr13 stainless hlau sib npaug cov qauv muaj xws li hauv qab no:
ASTM Txuj: 420
AISI / SAE txuj: 420
UNS tus qauv: S42000
EN tus qauv: 1.4021
JIS txuj: SUS420J1.

2Cr13 stainless hlau muaj ntau yam hardnesses, nyob ntawm cov kev kho cua sov. cov
Qhov cuam tshuam ntawm quenching kub ntawm hardness: Lub quenching kub ntawm 2Cr13 stainless hlau muaj ib qho tseem ceeb rau nws hardness. Thaum lub quenching kub yog nyob nruab nrab ntawm 980 degree thiab 1050 degree, lub hardness ntawm 45 thiab 50HRC. Yog tias quenching kub siab tshaj 1050 degree, qhov hardness yuav nce li ntawm 2HRC, tab sis lub sij hawm no cov txheej txheem nplej ntawm cov hlau yuav coarser thiab lub brittleness kuj yuav nce.

Lwm yam kev kho cua sov:
Ntxiv nrog rau qhov kub ntawm quenching, tempering kho tom qab quenching kuj cuam tshuam rau hardness. Lub hardness ntawm 2Cr13 stainless hlau tom qab quenching thiab tempering tuaj yeem ncav cuag HRC 52-65 degrees. Tsis tas li ntawd, qhov nyuaj ntawm 2Cr13 stainless hlau tuaj yeem txhim kho tau zoo tom qab kev kho nitriding. Lub hardness ntawm nitrided txheej tuaj yeem ncav cuag 1270 HK, uas yog 4.4 npaug ntawm qhov tawv ntawm substrate.

Cov txheej txheem hardness sib txawv:
Lub hardness ntawm 2Cr13 stainless hlau tuaj yeem ntsuas los ntawm ntau txoj kev sim, suav nrog Rockwell hardness (HRC), Vickers hardness, thiab Brinell hardness.
Nws Rockwell hardness yog hais txog HRC55, Vickers hardness yog hais txog 400, thiab Brinell hardness yog hais txog 200.