Alloy 20 Bakin Karfe

Alloy 20 (UNS N08020) wani austenitic ne, nickel-iron-chromium tushen super alloy tare da ƙari na Copper da Molybdenum waɗanda ke ba da juriya ga mahalli mara kyau, rami, da lalata. Hakanan an daidaita shi tare da Columbium don rage hazo carbide yayin walda. Alloy 20 ya bayyana yana faɗuwa tsakanin nau'ikan baƙin ƙarfe da nickel kamar yadda ya ƙunshi halaye na duka biyun. An ƙera shi don iyakar juriya ga harin acid kuma yana nuna juriya mafi girma ga fashewar damuwa-lalata a cikin tafasasshen 20% zuwa 40% sulfuric acid, kuma yana da kyakkyawan juriya na juriya ga sulfuric acid da chloride damuwa lalata lalata. Alloy 20 yana da kyawawan kaddarorin inji a duka yanayi da yanayin zafi mai tsayi, har zuwa kusan 930°F (500°C) kuma ana kera shi da sauri ta hanyoyin masana'antu na yau da kullun.

Ƙayyadaddun bayanai

	Daidaitawa	Alloy 20
1	UNS	N08020
2	Workstoff Nr.	2.4660

Abubuwan Sinadarai:

TYPE	C	Cr	Ku	Fe	Mn	Mo	Ni	P	Si	S	Nb (Cb)
Alloy 20 UNS N08020	0.07 max	min: 19.00 max: 21.00	min: 3.00 max: 4.00	Ma'auni	2.00 max	min: 2.00 max: 3.00	Minti: 32.00 max: 38.00	0.045 max	1.00 max	0.035 max	8 xC min 1.00 max

Kayayyakin Injini:

Yanayi Mai Karfi
Samfurin Samfura	Tashin hankali Karfi, ksi (min)	yawa Ƙarfi, 0.2% biya diyya ksi (min)	Tsawaita % (min)	Rage Yanki % (min)	Tauri Brinell (max)	Tauri Rockwell B (max)
Plate, Shet	80	35	30	-	217	95
Bar	80	35	30	50	-	-

Yawan yawa	8.1 g /cm3
Matsayin narkewa	1443 °C (2430 °F)

Siffofin

• Maɗaukakin lalata, juriya da ƙura
• Ya ƙunshi Niobium don daidaitawa da haɓakawa da kuma haifar da lalatawar intergranular
• Kyakkyawan kaddarorin inji da ƙirƙira
• Karamin hazo carbide yayin walda

Aikace-aikace
Saboda yawan juriya ga lalata, ana amfani da Alloy 20 wajen sarrafa sinadarai, samar da abinci, magunguna, samar da wutar lantarki da aikace-aikacen robobi. Valves, famfo da tsarin matsa lamba sune wasu shahararrun abubuwan da ake amfani da Alloy 20.