Alloy 347H bụ ihe kwụsiri ike, austenitic, chromium ígwè nwere columbium nke na-enye ohere maka ikpochapụ mmiri ozuzo carbide, na, n'ihi ya, corrosion intergranualr.A na-eme ka Alloy 347 kwụsie ike site na mgbakwunye nke chromium na tantalum ma na-enye ihe mgbawa dị elu na nrụgide nrụgide karịa alloy 304 na 304L nke nwekwara ike iji mee ihe maka ikpughe ebe mmetụta uche na corrosion intergranualr na-echegbu onwe ya.Mgbakwunye nke columbium na-enyekwa Alloy 347 ohere inwe nguzogide corrosion dị mma, ọbụna karịa nke alloy 321. 347H bụ ụdị ihe mejupụtara carbon carbon dị elu nke Alloy 347 ma gosipụta mma elu okpomọkụ na ihe na-akpụ akpụ.Ngwakọta igwe anaghị agba nchara Haosteel ugbu a gụnyere Alloy 347/347H (UNS S34700/S34709) na mpempe akwụkwọ, eriri mpempe akwụkwọ, efere, ogwe okirikiri, mmanya edozichara na ngwaahịa tubular.
347H igwe anaghị agba nchara chemical mejupụtara
Ngwakọta kemịkalụ:
C | Si | Mn | P | S | Cr | Ni | Nb |
0.04-0.1 | 0.75 | ≤ 2.0 | 0.045 | ≤ 0.03 | 17.0 - 19.0 | 9.0 - 13.0 | 8C - 1.0 |
347H igwe anaghị agba nchara chemical mejupụtara
Anụ ahụNjirimara:
Ewepụrụ:
Ike tensile kacha - 75KSI min (515 MPA min)
Ike Mpụta (0.2% kwụsịrị) -30 KSI min (205 MPA min)
Elongation - 40% min
Isi ike - HRB92max (201HV max)
Ngwa
A na-ejikarị Alloy 347H eme ihe maka imepụta akụrụngwa, nke a ga-etinyerịrị n'ọrụ n'okpuru ọnọdụ mmebi siri ike, ma bụrụkwa nke a na-ahụkarị na ụlọ ọrụ nchacha mmanụ.
Nguzogide corrosion:
.Na-enye nguzogide yiri nke ahụ na izugbe, n'ozuzu corrosion dị ka Alloy 304
.A na-eji ya maka ngwa ebe alloys dị ka Alloy 304 na-adịghị ike maka corrosion intergranualr.
.A na-ejikarị ya eme ihe maka ngwa welded dị arọ nke enweghị ike iwepụ yana maka akụrụngwa
Nke a na-arụ ọrụ n'etiti 800 ruo 150°F (427 ruo 816°C)
.Alloy 347 na-ahọrọ karịa Alloy 321 maka mmiri mmiri na ebe okpomọkụ ndị ọzọ dị ala
.A na-eji ya eme ihe na gburugburu ebe okpomọkụ dị elu ebe iguzogide mmetụta uche dị mkpa, n'aka nke ya na-egbochi corrosion intergranualr na ọkwa dị ala.
.Na-adaba na nrụgide corrosion cracking
.Na-egosiputa nguzogide oxidation dị ka igwe anaghị agba nchara 18-8 austenitic ndị ọzọ
Oge nzipu: Feb-12-2023