Maka ngwa na-achọ ka ekpughere na mmiri mmiri na-emebi emebi dị ka mmiri mmiri na mmiri kemịkalụ, ndị injinia atụgharịala ọdịnala gaa na alloys nickel valence dị elu dị ka Alloy 625 dị ka nhọrọ ndabara.Rodrigo Signorelli na-akọwa ihe kpatara alloys nitrogen dị elu ji bụrụ ụzọ akụ na ụba nwere oke nguzogide corrosion.
316L igwe anaghị agba nchara eriri igwe tubing subu
Nha Tube igwe anaghị agba nchara
.125″ OD X .035″ W | 0.125 | 0,035 | 6,367 |
.250″ OD X .035″ W | 0,250 | 0,035 | 2,665 |
.250″ OD X .035″ W (15 Ra Max) | 0,250 | 0,035 | 2,665 |
.250″ OD X .049″ W | 0,250 | 0.049 | 2,036 |
.250″ OD X .065″ W | 0,250 | 0.065 | 1,668 |
.375″ OD X .035″ W | 0,375 | 0,035 | 1,685 |
.375″ OD X .035″ W (15 Ra Max) | 0,375 | 0,035 | 1,685 |
.375″ OD X .049″ W | 0,375 | 0.049 | 1,225 |
.375″ OD X .065″ W | 0,375 | 0.065 | 995 |
.500″ OD X .035″ W | 0,500 | 0,035 | 1,232 |
.500″ OD X .049″ W | 0,500 | 0.049 | 909 |
.500″ OD X .049″ W (15 Ra Max) | 0,500 | 0.049 | 909 |
.500″ OD X .065″ W | 0,500 | 0.065 | 708 |
.750″ OD X .049″ W | 0,750 | 0.049 | 584 |
.750″ OD X .065″ W | 0,750 | 0.065 | 450 |
6 MM OD X 1 MM W | 6mm | 1mm | 2,610 |
8 MM OD X 1 MM W | 8mm | 1mm | 1,863 |
10 MM OD X 1 MM W | 10mm | 1mm | 1,449 |
12 MM OD X 1 MM W | 12mm | 1mm | 1,188 |
Ngwakọta kemịkalụ igwe anaghị agba nchara
T304/L (UNS S30400/UNS S30403) | ||||
Cr | Chromium | 18.0 - 20.0 | ||
Ni | Nickel | 8.0-12.0 | ||
C | Carbon | 0,035 | ||
Mo | Molybdenum | N/A | ||
Mn | Manganese | 2.00 | ||
Si | Silikoni | 1.00 | ||
P | Phosphorus | 0,045 | ||
S | sọlfọ | 0,030 | ||
T316/L (UNS S31600/UNS S31603) | ||||
Cr | Chromium | 16.0 - 18.0 | ||
Ni | Nickel | 10.0-14.0 | ||
C | Carbon | 0,035 | ||
Mo | Molybdenum | 2.0-3.0 | ||
Mn | Manganese | 2.00 | ||
Si | Silikoni | 1.00 | ||
P | Phosphorus | 0,045 | ||
S | sọlfọ | 0,030 |
Nha igwe anaghị agba nchara 316 / L Igwe anaghị agba nchara
OD | Mgbidi | ID |
1/16” | .010 | .043 |
(.0625) | .020 | .023 |
1/8" | .035 | .055 |
(.1250) | ||
1/4" | .035 | .180 |
(.2500) | .049 | .152 |
.065 | .120 | |
3/8" | .035 | .305 |
(.3750) | .049 | .277 |
.065 | .245 | |
1/2" | .035 | .430 |
(.5000) | .049 | .402 |
.065 | .370 | |
5/8" | .035 | .555 |
(.6250) | .049 | .527 |
3/4" | .035 | .680 |
(.7500) | .049 | .652 |
.065 | .620 | |
.083 | .584 | |
.109 | .532 |
Ọkwa dị nke igwe anaghị agba nchara Tubes / eriri eriri igwe
ASTM A213/269/249 | UNS | EN 10216-2 enweghị nkebi / EN 10217-5 Welded | Ihe onwunwe Nọmba. (WNr) |
---|---|---|---|
304 | S30400 | X5CrNi18-10 | 1.4301 |
304L | S30403 | X2CrNi19-11 | 1.4306 |
304H | S30409 | X6CrNi18-11 | 1.4948 |
316 | S31600 | X5CrNiMo17-12-2 | 1.4401 |
316L | S31603 | X2CrNiMo17-2-2 | 1.4404 |
316 Ti | S31635 | X6CrNiMoTi17-12-2 | 1.4571 |
317L | S31703 | FeMi35Cr20Cu4Mo2 | 2.4660 |
Ogo na asambodo na-ekpebi nhọrọ nke ihe maka sistemu dị ka ndị na-ekpo ọkụ na-ekpo ọkụ (PHEs), pipeline na nfuli na ụlọ ọrụ mmanụ na gas.Nkọwa nka na ụzụ na-ahụ na akụ na-enye usoro ga-aga n'ihu n'ime ogologo ndụ ogologo ndụ ma na-ahụ maka ịdị mma, nchekwa na nchekwa gburugburu ebe obibi.Nke a bụ ya mere ọtụtụ ndị na-arụ ọrụ na-agụnye nickel alloys dị ka Alloy 625 na nkọwa na ụkpụrụ ha.
Ka ọ dị ugbu a, a na-amanye ndị injinia ka ha belata ọnụ ahịa ego isi obodo, na nickel alloys dị oke ọnụ ma nwee ike ịme mgbanwe ọnụahịa.E gosipụtara nke a na Machị 2022 mgbe ọnụ ahịa nickel mụbara okpukpu abụọ n'otu izu n'ihi azụmaahịa ahịa, na-eme akụkọ.Ọ bụ ezie na ọnụ ahịa dị elu pụtara nickel alloys dị ọnụ ahịa iji, mgbanwe a na-emepụta ihe ịma aka nchịkwa maka ndị injinia imewe dịka mgbanwe ọnụahịa mberede nwere ike imetụta uru na mberede.
N'ihi ya, ọtụtụ ndị injinia imewe dị njikere ugbu a iji dochie Alloy 625 na ndị ọzọ n'agbanyeghị na ha maara na ha nwere ike ịdabere na àgwà ya.Isi ihe bụ ịmata alloy ziri ezi na ọkwa kwesịrị ekwesị nke nguzogide corrosion maka sistemu mmiri mmiri ma nye ihe alloy dabara na akụrụngwa akụrụngwa.
Otu ihe tozuru oke bụ EN 1.4652, makwaara dị ka Outokumpu's Ultra 654 SMO.A na-ewere ya dị ka igwe anaghị agba nchara na-eguzogide corrosion n'ụwa.
Nickel Alloy 625 nwere opekata mpe 58% nickel, ebe Ultra 654 nwere 22%.Ha abụọ nwere ihe dị ka chromium na molybdenum ọdịnaya.N'otu oge ahụ, Ultra 654 SMO nwekwara obere nitrogen, manganese na ọla kọpa, 625 alloy nwere niobium na titanium, ọnụahịa ya dị elu karịa nke nickel.
N'otu oge ahụ, ọ na-anọchite anya ọganihu dị ịrịba ama karịa 316L igwe anaghị agba nchara, nke a na-ewerekarị dị ka mmalite maka nnukwu arụmọrụ igwe anaghị agba nchara.
N'ihe banyere arụmọrụ, alloy nwere ezigbo nguzogide corrosion n'ozuzu, oke nguzogide dị elu na pitting na crevice corrosion, yana ezigbo nguzogide corrosion corrosion.Otú ọ dị, a bịa n'ihe gbasara usoro mmiri mmiri, igwe anaghị agba nchara nwere uru karịa alloy 625 n'ihi nguzogide ya na gburugburu chloride.
Mmiri mmiri na-emebi emebi nke ukwuu n'ihi ọdịnaya nnu nke akụkụ 18,000-30,000 kwa nde ion chloride.Chlorides na-enye ihe ize ndụ corrosion kemịkalụ maka ọtụtụ akara nchara.Otú ọ dị, ihe ndị dị n'ime mmiri mmiri nwekwara ike ịmepụta biofilms nke na-eme ka mmeghachi omume electrochemical na-emetụta arụmọrụ.
Site na ọdịnaya nickel na molybdenum dị ala, ngwakọta alloy Ultra 654 SMO na-enye nnukwu ego nchekwa ego karịa ihe ngosi 625 alloy ọdịnala dị elu ma na-ejigide otu ọkwa arụmọrụ.Nke a na-echekwakarị 30-40% nke ọnụ ahịa.
Tụkwasị na nke ahụ, site n'ibelata ọdịnaya nke ihe ndị na-emepụta ihe bara uru, igwe anaghị agba nchara na-ebelatakwa ihe ize ndụ nke mgbanwe na ahịa nickel.N'ihi ya, ndị na-emepụta ihe nwere ike inwekwu obi ike na izi ezi nke atụmatụ atụmatụ ha na nhota ha.
Ihe eji arụ ọrụ nke ihe bụ ihe ọzọ dị mkpa maka ndị injinia.Ọkpụkpọ ọkpọkọ, ihe ndị na-ekpo ọkụ, na sistem ndị ọzọ ga-anagide nrụgide dị elu, ọnọdụ okpomọkụ na-agbanwe, na mgbe mgbe nrụgharị ọrụ ma ọ bụ ujo.Ultra 654 SMO edobere nke ọma na mpaghara a.Ọ nwere nnukwu ike yiri alloy 625 ma dị elu karịa igwe anaghị agba nchara ndị ọzọ.
N'otu oge ahụ, ndị na-emepụta ihe na-achọ ihe ndị nwere ike ịmepụta na weldable nke na-enye mmepụta ngwa ngwa ma dị ngwa ngwa n'ụdị ngwaahịa achọrọ.
N'akụkụ a, alloy bụ nhọrọ dị mma n'ihi na ọ na-ejigide usoro dị mma na elongation dị mma nke akara ule austenitic ọdịnala, na-eme ka ọ dị mma maka ịmepụta efere ọkụ na-ekpo ọkụ na nke dị arọ.
Ọ nwekwara ezigbo weldability ma dị n'ụdị dị iche iche gụnyere coils na mpempe akwụkwọ ruo 1000mm n'obosara na 0.5 ruo 3mm ma ọ bụ 4 ruo 6mm.
Uru ọzọ na-eri bụ na alloy nwere njupụta dị ala karịa alloy 625 (8.0 vs. 8.5 kg/dm3).Ọ bụ ezie na ọdịiche a nwere ike ọ gaghị adị ka ọ dị ịrịba ama, ọ na-ebelata tonnage site na 6%, nke nwere ike ịzọpụta gị nnukwu ego mgbe ịzụrụ na nnukwu ọrụ maka ọrụ dị ka ọkpọkọ pipelines.
Na ndabere nke a, njupụta dị ala pụtara na usoro a rụchara ga-adị ọkụ, na-eme ka ọ dị mfe iji ngwa ngwa, bulie na ịwụnye.Nke a bara uru karịsịa na ngwa okpuru mmiri na nke dịpụrụ adịpụ ebe usoro dị arọ na-esi ike karị ijikwa.
Nyere niile atụmatụ na uru nke Ultra 654 SMO - elu corrosion eguzogide na n'ibu ike, ọnụ nkwụsi ike na ike nke ziri ezi na-eme atụmatụ - o doro anya na ọ nwere ike ịghọ ihe ọzọ asọmpi ọzọ na nickel alloys.
Oge nzipu: Feb-27-2023