347 / 347H fa'alava uamea

FAAMATALAGA

Ituaiga 347 / 347H uʻamea uʻamea o se austenitic grade o chromium sila, lea e aofia ai le columbium o se elemene mautu. E mafai foi ona faʻaopoopo le Tantalum mo le ausiaina o le faʻamautuina. O lenei mea e faʻaumatia ai le carbide precipitation, faʻapea foʻi ma le corrosion intergranular i paipa uʻamea. Ituaiga 347 / 347H paipa u'amea u'amea ofo atu maualuga fetolofi ma fa'avevesi meatotino gau nai lo vasega 304 ma 304L. O le mea lea e talafeagai ai mo le fa'aalia i lagona ma'ale'ale ma intergranular corrosion. E le gata i lea, o le faʻaofiina o le columbium e mafai ai ona maua e 347 paipa e sili ona lelei le faʻafefeteina, e sili atu nai lo le 321 paipa uamea. Ae ui i lea, 347H uʻamea o le sili atu carbon tuufaatasiga sui o stainless steel paipa vasega 347. O le mea lea, 347H uamea tubes ofoina faaleleia maualuga vevela ma mea fetolofi.

347 / 347H TUPE u'amea u'amea

O lo'o mulimuli mai meatotino o paipa u'amea 347 / 347H ofo mai e Arch City Steel & Alloy:

 

Tete'e a'e:

 

  • Fa'aalia le tete'e fa'ama'i e tutusa ma isi u'amea austenitic
  • E sili atu nai lo le vasega 321 mo vai ma isi siosiomaga maualalo vevela
  • E sili atu le maualuga o le vevela nai lo le 304 po'o le 304L
  • Lelei teteʻe i lagona i siosiomaga vevela maualuga
  • E fetaui mo masini uelo mamafa e le mafai ona faʻapipiʻiina
  • Fa'aoga mo masini fa'aogaina i le va o le 800 i le 150°F (427 I LE 816°C)

 

Maufa'atasi:

 

  • 347 / 347H paipa u'amea u'amea/paipa ua manatu e sili ona ueloina i totonu o vasega maualuga uma paipa uamea.

  • E mafai ona ueloina i faiga faapisinisi uma

 

Togafitiga vevela:

 

  • 347 / 347H paipa u'amea u'amea ma paipa ofo atu se vaega o le vevela o le 1800 i le 2000°F.

  • E mafai ona fa'amama fa'afefeteina e aunoa ma se fa'alavelave e fa'asolo mai ai le pala i totonu o le carbide timuga o le 800 i le 1500°F.

  • E le mafai ona faʻamaʻaʻaina e ala ile vevela

 

Talosaga:

 

347 / 347H paipa e masani ona faʻaaogaina mo le fausiaina o mea faigaluega e tatau ona faʻaaogaina i lalo ole tulaga ogaoga. E le gata i lea, e masani ona faʻaaogaina i fale gaosi suauu. O talosaga tetele e aofia ai:

 

  • Fa'agasologa o vaila'au vevela maualuga
  • Faiga fa'afefe vevela
  • O paipa ausa maualuga
  • O le ausa maualuga ole vevela ma paipa paipa/paaga
  • faiga fa'avevela mamafa
  • Fa'avevela vevela susulu
  • Paipa fa'ameamea lautele

 

FA'AIGA KEMIMI

 

Tulaga Fa'ata'ita'i Fa'apitoa % (tau maualuga, se'i vagana ua fa'ailoa)
Vasega C Cr Mn Ni P S Si Cb/Ta
347 0.08 maualuga min: 17.0
maualuga: 20.0
2.0 maualuga min: 9.0
maualuga: 13.0
0.04 maualuga 0.30 maualuga 0.75 maualuga min:10x C
maualuga: 1.0
347H min: 0.04
maualuga: 0.10
min: 17.0
maualuga: 20.0
2.0 maualuga min: 9.0
maualuga: 13.0
0.03 maualuga 0.30 maualuga 0.75 maualuga min:10x C
maualuga: 1.0

Taimi meli: Oke-09-2020