ALOY 625, UNSN06625

ALOY 625, UNSN06625

Alloy 625 (UNS N06625)
Nchịkọta Nickel-chromium-molybdenum alloy nwere mgbakwunye niobium nke na-arụ ọrụ na molybdenum na-eme ka matrix alloy sie ike ma si otú a na-enye ike dị elu na-enweghị ọgwụgwọ okpomọkụ na-ewusi ike. Alloy ahụ na-eguzogide ọtụtụ gburugburu ebe ndị na-emebi emebi ma na-eguzogide ọgwụ maka pitting na crevice corrosion. Ejiri ya na nhazi kemịkalụ, ikuku ikuku na injinia mmiri, akụrụngwa na-achịkwa mmetọ, na ihe nrụpụta nuklia.
Ụdị ngwaahịa ọkọlọtọ Pipe, tube, mpempe akwụkwọ, warara, efere, gburugburu mmanya, flat bar, forging stock, hexagon na waya.
Ihe mejupụtara kemịkalụ Wt,% Min Oke. Min. Oke. Min. Oke.
Ni 58.0 Cu C 0.1
Cr 20.0 23.0 Co 1.0 Si 0.5
Fe 5.0 Al 0.4 P 0.015
Mo 8.0 10 Ti 0.4 S 0.015
Nb 3.15 4.15 Mn 0.5 N
Constant nke anụ ahụ Njupụta,g/8.44
Oke agbaze,℃ 1290-1350
Njirimara arụrụ arụ (Ngwọta Annealed)(1000h) Ike mgbawa (1000h) ksi Mpa

1200℉/650℃ 52 360

1400℉/760℃ 23 160

1600℉/870℃ 72 50

1800℉/980℃ 26 18

Microstructure

Alloy 625 bụ ihe ngwọta siri ike matriks-kpagidere ihu gbadoro ụkwụ na cubic alloy.
Ndị agwa

N'ihi ọdịnaya katọn ya dị ala na ọgwụgwọ okpomọkụ na-eme ka ọ kwụsie ike, Inconel 625 na-egosi ntakịrị mmasị na mmetụta ọbụna mgbe awa 50 gachara na okpomọkụ na nso 650 ~ 450 ℃.

A na-enye alloy ahụ na ọnọdụ nro dị nro maka ngwa ndị metụtara mmiri corrosion (Alloy 625, ọkwa 1), ma TUV kwadoro maka ụgbọ mmiri nrụgide na okpomọkụ -196 ruo 450 ℃.

Maka ngwa okpomọkụ dị elu, n'elu ihe ruru. 600℃, ebe elu ike na iguzogide creep na mgbawa na-chọrọ, a ngwọta-annealed version (Alloy 625, ọkwa 2) na a elu carbon ọdịnaya na-ejikari n'ọrụ na dị na arịrịọ na ụfọdụ ngwaahịa ụdị.

Nguzogide pụtara ìhè na olulu, nrụrụ corrosion, na ọgụ intergranular;

Ihe fọrọ nke nta ka ọ bụrụ nnwere onwe zuru oke site na mgbawa nrụgide-corrosion nke chloride;

Ezigbo iguzogide acid ịnweta, dị ka nitric, phosphoric, sulfuric na hydrochloric acid;

ezigbo iguzogide alkalis na organic acid;

Ezigbo ihe eji arụ ọrụ.
Nguzogide corrosion

Ọdịnaya dị elu nke alloy 625 na-enyere ya aka iguzogide gburugburu ebe obibi corrosion dị iche iche. N'ebe dị nro dị ka ikuku, mmiri ọhụrụ na nke oké osimiri, nnu na-anọpụ iche, na mgbasa ozi alkaline ọ fọrọ nke nta ka ọ bụrụ ọgụ. Na gburugburu corrosion ka njọ, nchikota nickel na chromium na-enye iguzogide kemịkalụ oxidizing, ebe nnukwu nickel na molybdenum na-enye iguzogide enweghị ike imegide mmetụta n'oge ịgbado ọkụ, si otú a na-egbochi mgbawa intergranular na-esote. Ọzọkwa, nnukwu ọdịnaya nickel na-enye site na chloride ion-stress-corrosion cracking.
Ngwa

Ụdị dị nro nke Alloy 625 (ọkwa 1) ka a na-ahọrọ maka ngwa na ụlọ ọrụ usoro kemịkalụ, na injinia mmiri na n'ime ihe nchịkwa mmetọ maka nchebe gburugburu ebe obibi. Ngwa a na-ahụkarị bụ:

1. Superphosphoric acid mmepụta akụrụngwa;

2. Ngwongwo na-emezigharị ihe mkpofu nuklia;

3. Utoojoo gas mmepụta tubes;

4. Usoro ọkpọkọ na sheathing nke risers na nchọpụta mmanụ;

5. Offshore ụlọ ọrụ na mmiri akụrụngwa;

6. Flue gas scrubber na damper components;

7. Chimney lining.
N'ihi na elu okpomọkụ ngwa, ruo ihe dị ka 1000 ℃, ihe ngwọta-annealed ụdị Alloy 625 (ọkwa 2) nwere ike ji mee ihe dị ka ASME koodu maka nrụgide arịa. Ngwa a na-ahụkarị bụ:

 

1. Ihe ndị dị na sistemu gas na-ekpofu ihe na ihe ọkụkụ na-ekpo ọkụ na-ekpo ọkụ na-ekpochapụ okpomọkụ;

2. Mkpokọta ọkụ na ụlọ ọrụ refineries na ọdụ ụgbọ mmiri;

3. Recuperator na ndị na-akwụ ụgwọ;

4. Usoro ikpochapu mmanụ dizel okpuru mmiri;

5. Superheater tubes na mkpofu ọkụ osisi.


Oge nzipu: Nov-11-2022