Akụkọ - igwe anaghị agba nchara – Ọkwa 2205 Duplex (UNS S32205)

Okwu mmalite

Duplex 2205 igwe anaghị agba nchara (ma ferritic na austenitic) na-eji ọtụtụ na ngwa na-achọ ezi corrosion nguzogide na ike.S31803 ọkwa igwe anaghị agba nchara emeela ọtụtụ mgbanwe na-akpata UNS S32205, ma kwadoro ya n'afọ 1996. Nke a na ọkwa na-enye elu iguzogide corrosion.

N'ebe okpomọkụ dị n'elu 300 ° C, ihe ndị na-emepụta ihe na-egbuke egbuke nke ọkwa a na-enweta mmiri ozuzo, na okpomọkụ n'okpuru -50 Celsius, ihe ndị na-emepụta ihe na-eme mgbanwe ductile-to-brittle;ya mere ọkwa a nke igwe anaghị agba nchara adịghị mma maka ojiji na okpomọkụ ndị a.

Njirimara igodo

Igwe anaghị agba nchara – Ọkwa 2205 Duplex (UNS S32205)

Ngwongwo ndị a kpọtụrụ aha na tebụl ndị dị n'okpuru metụtara ngwaahịa akpọrepu ewepụghị dị ka efere, mpempe akwụkwọ na eriri igwe nke ASTM A240 ma ọ bụ A240M.Ndị a nwere ike ọ gaghị abụ otu n'ofe ngwaahịa ndị ọzọ dị ka mmanya na ọkpọkọ.

Ihe mejupụtara

Igwe anaghị agba nchara – Ọkwa 2205 Duplex (UNS S32205)

Tebụl 1 na-enye usoro nhazi maka ọkwa 2205 duplex igwe anaghị agba nchara.

Tebụl 1- Ihe mejupụtara ya maka igwe anaghị agba nchara 2205

Ọkwa

2205 (S31803)

Min

Oke

0,030

2.00

1.00

0,030

0.020

21.0

23.0

2.5

3.5

4.5

6.5

0.08

0.20

2205 (S32205)

Min

Oke

0,030

2.00

1.00

0,030

0.020

22.0

23.0

3.0

3.5

4.5

6.5

0.14

0.20

Ihe eji arụ ọrụ

Edepụtara ihe eji arụ ọrụ arụ ọrụ nke ọkwa 2205 igwe anaghị agba nchara na tebụl dị n'okpuru.Ọkwa S31803 nwere ihe eji arụ ọrụ yiri nke S32205.

Tebụl 2- Mechanical Njirimara nke 2205 ọkwa igwe anaghị agba nchara

Ọkwa	Tensile Str (MPa) min	Mpụta Ike 0.2% akaebe (MPa) min	Ogologo oge (% na 50mm) nkeji	Isi ike
				Rockwell C (HR C)	Brinell (HB)
2205	621	448	25	31 max	293 max

Njirimara anụ ahụ

Igwe anaghị agba nchara – Ọkwa 2205 Duplex (UNS S32205)

Njirimara anụ ahụ nke ọkwa 2205 igwe anaghị agba nchara ka edepụtara n'okpuru.Ọkwa S31803 nwere ihe anụ ahụ yiri nke S32205.

Tebụl 3- Njirimara anụ ahụ nke igwe anaghị agba nchara 2205

Ọkwa

Njupụta
(kg/m3)

Na-agbanwe
Modul

(GPa)

Mpụtara Co-eff nke Thermal
Mgbasawanye (μm/m/°C)

Thermal
Ịrụ ọrụ (W/mK)

Kpọtụrụ
Okpomọkụ
0-100°C

(J/kg.K)

Eletriki
Nguzogide
(nΩ.m)

0-100°C

0-315°C

0-538°C

na 100°C

na 500°C

2205

7800

190

13.7

14.2

418

850

Ntụle nkọwa ọkwa ọkwa

Igwe anaghị agba nchara – Ọkwa 2205 Duplex (UNS S32205)

Tebụl 4 na-enye ntụnyere ọkwa maka 2205 igwe anaghị agba nchara.Ụkpụrụ bụ ntụnyere nke ihe ndị yiri ya na-arụ ọrụ.Enwere ike nweta ihe nhata kpọmkwem site na nkọwapụta izizi.

Tebụl 4-Ntụnyere nkọwa ọkwa ọkwa maka igwe anaghị agba nchara 2205

Ọkwa	UNS No	Ochie British	Euronorm	Swedish SS	Japanese JIS
2205	S31803 / S32205	318S13	-	1.4462	X2CrNiMoN22-5-3	2377	SUS 329J3L

Ọkwa

UNS
No

Ochie British

Euronorm

Swedish

Japanese

JIS

Aha

2205

S31803 / S32205

318S13

1.4462

X2CrNiMoN22-5-3

2377

SUS 329J3L

Klas nke ọzọ enwere ike

Nyere n'okpuru bụ ndepụta nke akara ule ọzọ enwere ike, nke enwere ike ịhọrọ n'ọnọdụ 2205.

Tebụl 5-Ntụnyere nkọwa ọkwa ọkwa maka igwe anaghị agba nchara 2205

Ọkwa	Ihe kpatara ịhọrọ ọkwa
904L	Ọdịmma ka mma achọrọ, yana nguzogide corrosion yiri ya na ike dị ala.
UR52N+	Achọrọ nnukwu iguzogide corrosion, dịka iguzogide mmiri mmiri dị elu.
6% Mo	A chọrọ nguzogide corrosion dị elu, mana na ike dị ala na nhazi dị mma.
316L	Nnukwu nguzogide corrosion na ike nke 2205 adịghị mkpa.316L dị ọnụ ala.

Nguzogide corrosion

Akụkọ ndị emetụtara

Ọkwa 2205 igwe anaghị agba nchara na-egosiputa ezigbo nguzogide corrosion, dị elu karịa nke ọkwa 316. Ọ na-eguzogide ụdị corrosion mpaghara dị ka intergranular, crevice na pitting.CPT nke ụdị igwe anaghị agba nchara dị gburugburu 35 Celsius.Ọkwa a na-eguzogide chloride stress corrosion cracking (SCC) na okpomọkụ nke 150°C.Ọkwa 2205 igwe anaghị agba nchara bụ ihe ngbanwe dabara adaba na akara ule austenitic, ọkachasị na gburugburu ọdịda akaghi aka na gburugburu mmiri.

Okpomọkụ Nguzogide

Ngwongwo na-eguzogide oxidation dị elu nke ọkwa 2205 mebiri site na mwepu ya n'elu 300°C.Enwere ike gbanwee mgbakasị a site na ọgwụgwọ zuru oke nke na-eme ka ahụ kwụsị.Ọkwa a na-arụ ọrụ nke ọma na okpomọkụ n'okpuru 300 Celsius.

Ọgwụgwọ okpomọkụ

Ọgwụgwọ okpomọkụ kachasị mma maka ọkwa a bụ ọgwụgwọ ngwọta (na-akụda), n'etiti 1020 - 1100 Celsius C, na-esote ngwa ngwa jụrụ oyi.Enwere ike ịrụ ọrụ siri ike mana ọkwa 2205 enweghị ike ime ya site na ụzọ ọkụ.

ịgbado ọkụ

Ọtụtụ ụzọ ịgbado ọkụ ọkọlọtọ dabara na ọkwa a, ewezuga ịgbado ọkụ na-enweghị igwe na-ejuputa, nke na-ebute oke ferrite.AS 1554.6 kwadoro ịgbado ọkụ maka 2205 na mkpanaka 2209 ma ọ bụ electrodes nke mere na ọla edobere ya nwere usoro duplex ziri ezi.

Ịgbakwunye nitrogen na gas na-echebe na-eme ka a hụ na a na-agbakwunye austenite zuru oke na nhazi ahụ.A ghaghị ịnọgide na-enwe ntinye ọkụ na ọkwa dị ala, a ghaghị izere iji ọkụ tupu ma ọ bụ post.Ọnụ ọgụgụ na-arụ ọrụ nke ọma nke mgbasawanye okpomọkụ maka ọkwa a dị ala;N'ihi ya mgbagwoju anya na nrụgide dị ntakịrị karịa nke na akara ule austenite.

Ịrụ igwe

The machinability nke ọkwa a dị ala n'ihi ike ya dị elu.Ọsọ nke ịkpụcha ihe fọrọ nke nta ka ọ bụrụ 20% dị ala karịa nke ọkwa 304.

Imepụta

Ike ya na-emetụtakwa imepụta ọkwa ọkwa a.Ihulata na nhazi ọkwa a chọrọ akụrụngwa nwere ikike buru ibu.Ductility nke ọkwa 2205 dị obere karịa akara ule austenitic;ya mere, isi oyi agaghị ekwe omume na ọkwa a.Iji rụọ ọrụ isi oyi na ọkwa a, a ga-eme nhịahụ etiti.

Ngwa

Ụfọdụ ngwa a na-ahụkarị nke ọkwa nchara duplex 2205 ka edepụtara n'okpuru:

Ịchọgharị mmanụ na gas
Ngwa nhazi
Ụgbọ njem, nchekwa na nhazi kemịkalụ
Nnukwu chloride na gburugburu mmiri
Igwe akwụkwọ, tankị mmanya, pulp na mpempe akwụkwọ

Oge nzipu: Mar-11-2023