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347H Birta Aan Lahayn
Bir daxal laheyn
347 / 347H Birta Aan Lahayn
347 Birta Aan Lahayn

347 / 347H Birta Aan Lahayn

347 darajada birta aan dahsoon waa daawaha xasiloon, sababtuna waa columbium + qaybteeda tantalum gudaha. Ku habboon nolosha shaqada muddada-dheer ee heerkul sarreeya (800-1500ºF), 347 Steel-ka-baxa ah ayaa sidoo kale u adkaysata daxalka intergranular ee qiyaasta roobabka karbide chromium.
Macluumaadka alaabta

Alloy 347 waa isku dheeli tiran, austenitic, chromium bir ka kooban kolumbium taas oo tixgelinaysa dhamaadka roobab carbide, iyo sidaas daxalka intergranular. Alloy 347 waxaa lagu dheellitiraa kororka chromium iyo tantalum wuxuuna bixiyaa gurguurta iyo kadeedka guryaha dillaaca marka loo eego alloy 304 iyo 304L, kuwaas oo sidoo kale laga yaabo in loo isticmaalo soo-gaadhista halka dareenka iyo daxalka intergranular ay walaac ka qabaan. si ay u leeyihiin iska caabin daxalka heer sare ah, ka wanaagsan ka ee daawaha 321. Alloy 347H waa kaarboon ka samaysan ka samaysan ee Alloy 347 iyo bandhigay kor u kacay heerkulka sare iyo guryaha gurguurta.
Astaamaha

  • Cadaadiska gurguurta ee sarreeya iyo guryaha dillaaca marka la barbar dhigo 304
  • Ku habboon adeegga heerkulka sare
  • Ka guulaysta dareenka iyo walaacyada daxalka intergranular
  • Waxaa loo isticmaali karaa codsiyada heerkulka sare
  • Xasilinta awgeed maaddadu waxay bixisaa iska caabin guud oo daxalka ah marka la barbar dhigo 304/304L
Codsiyada
  • Habaynta Kiimikada
  • Qalabka habaynta cuntada iyo kaydinta
  • Sifeynta batroolka cutubyada dildilaaca dareeraha, adeegga polythionic acid
  • Wax-soo-saarka Daawooyinka
  • Soo kabsashada kulaylka qashinka qashinka
iska caabinta arxanka

Alloy 347 saxan bir ah oo aan caadi ahayn ayaa soo bandhigaysa iska caabin guud oo wanaagsan oo la mid ah 304. Waxaa loo soo saaray isticmaalka baaxadda roobabka chromium carbide by 800 - 1500 ° F (427 - 816 ° C) halkaas oo alloys aan dheelitirnayn sida 304 ay ku xiran yihiin intergranular. weerar. Baaxadda heerkulkan, iska caabbinta guud ee daxalka ee Alloy 347 saxan bir aan lahayn ayaa ka fiican Alloy 321 saxan bir ah. Alloy 347 waxa kale oo uu ka shaqeeyaa waxoogaa ka sarreeya Alloy 321 xaaladaha oksaydhaynta xooggan ilaa 1500°F (816°C). Daawaha waxaa loo isticmaali karaa qayb ka mid ah xalalka nitric; Inta badan asiidhyada dabiiciga ah ee la qaso heerkulka dhexdhexaadka ah iyo fosfooraska aashitada saafiga ah ee heerkulka hoose iyo ilaa 10% xalalka la qaso ee heerkulka sare. Alloy 347 saxan bir ah oo aan lahayn ayaa iska caabinaysa daxalka cadaadiska polythionic acid ee adeega hydrocarbon. Waxa kale oo loo isticmaali karaa chloride ama fluoride xalalka caustic ee bilaashka ah ee heerkulka dhexdhexaadka ah. Alloy 347 saxan bir ah oo aan fiicneyn si fiican uma qabato xalalka chloride, xitaa xaddi yar, ama sulfuric acid.

Faahfaahin dheeraad ah
Halabuurka Kiimikada %
Darajo C Si P S Cr Mn Ni Fe Cb (Nb+Ta)
347 0.08 max 0.75 max 0.045 max 0.03 max 17.0 - 19.0 2.0 max 9.0-13.0 Hadhaaga 10x (C + N)- 1.0
347H 0.04-0.10 0.75 max 0.045 max 0.03 max 17.0 - 19.0 2.0 max 9.0-13.0 Hadhaaga 8x (C + N)- 1.0

Guryaha Makaanikada
Xoogga Jilitaanka (ksi) 0.2% Xoogga Wax-soosaarka (ksi) Kordhinta 2 inji
75 30 40

Guryaha Jirka
Unugyo Heerkulka °C
Cufnaanta 7.97 g /cm³ Qol
Kuleylka Gaarka ah 0.12 Kcal /kg.C 22°
Range dhalaalay 1398 - 1446 °C -
Qaabka Elasticity 193 KN /mm² 20°
Iska caabin koronto 72 µΩ.cm Qol
Isku-dhafka Ballaarinta 16.0 µm /m °C 20 - 100 °
Habdhaqanka kulaylka 16.3 W/m -°K 20°

Tilmaamaha ASTM
Dhuumaha / Tube (SMLS) Xaashi / saxan Baar Been abuurasho Qalabaynta
A 213 A 240, A 666 A 276 A 182 A 403
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