Hom 347H yog lub siab carbon austenitic chromium stainless hlau. Pom muaj nyob rau hauv cov ntawv thov uas xav tau kev kub ntxhov siab, lwm yam qauv tsim muaj xws li:

Zoo sib xws kuj thiab corrosion tiv thaiv li Alloy 304
Siv rau cov khoom siv welded hnyav thaum annealing tsis tau
Zoo oxidation kuj, nyob rau hauv par nrog rau feem ntau lwm yam austenitic stainless hlau
Cov pa roj carbon ntau dua tso cai rau kom zoo dua qhov kub thiab txias creep zog

347H Stainless Steel

Tshuaj muaj pes tsawg leeg

Cov lus hauv qab no qhia cov tshuaj muaj pes tsawg leeg ntawm qib 347H stainless hlau.

Element	Cov ntsiab lus (%)
Hlau, Fe	62.83 - 73.64
Chromium, Cr	17 - 20
Nickel, Nia	9 - 13
Manganese, Mn	2
Silicon, Sib	1
Niobium, Nb (Columbium, Cb)	0.320 - 1
Carbon, C	0.04 - 0.10
Phosphorus, P	0.040
Sulfur, S	0.030

Fabrication thiab Thaum tshav kub kub kho

Machineability

Machining qib 347H stainless hlau yog me ntsis tawv dua li ntawm qib 304 steel. Txawm li cas los xij, qhov hardenability ntawm cov hlau no tuaj yeem txo qis los ntawm kev siv cov khoom noj zoo tas li thiab qeeb qeeb.

Vuam

Qib 347H stainless hlau tuaj yeem welded siv feem ntau ntawm kev tiv thaiv thiab fusion txoj kev. Oxyacetylene welding tsis nyiam rau cov hlau no.

Kub Ua Haujlwm

Forging, chim siab thiab lwm yam txheej txheem ua haujlwm kub tuaj yeem ua tau ntawm 1149 txog 1232 degree (2100 txog 2250 degree F). Qib 347H hlau yuav tsum tau muab dej quenched thiab annealed kom tau qhov siab tshaj plaws hardness.

Ua haujlwm txias

Qib 347H stainless hlau tuaj yeem nkag tau yooj yim stamped, blanked, spun thiab kos vim nws yog tawv heev thiab ductile.

Annealing

Qib 347H stainless hlau tuaj yeem muab tso rau ntawm qhov kub ntawm 1010 txog 1193 degree (1850 txog 2000 degree F) thiab tom qab ntawd quenched nrog dej.