316

Okwu mmalite

Ọkwa 316 bụ ọkwa molybdenum na-ebu ọkọlọtọ, nke abụọ dị mkpa na 304 n'etiti igwe anaghị agba nchara austenitic.The molybdenum na-enye 316 mma n'ozuzu corrosion eguzogide Njirimara karịa ọkwa 304, karịsịa elu iguzogide pitting na crevice corrosion na chloride gburugburu.

Ọkwa 316L, ụdị carbon dị ala nke 316 na enweghị ike inwe mmetụta (oke oke carbide ọdịda ọka).N'ihi ya, a na-eji ya eme ihe n'ụdị dị arọ nke welded (ihe karịrị 6mm).Ọ nweghị ọdịiche ọnụahịa bara uru n'etiti igwe anaghị agba nchara 316 na 316L.

Ọdịdị austenitic na-enyekwa akara ule ndị a ike siri ike, ọbụna ruo na okpomọkụ nke cryogenic.

E jiri ya tụnyere chromium-nickel austenitic igwe anaghị agba nchara, igwe anaghị agba nchara 316L na-enye mgbawa dị elu, nrụgide na mgbawa na ike ike na okpomọkụ dị elu.

Njirimara igodo

A kọwapụtara akụrụngwa ndị a maka ngwaahịa akpọrepu ewepụghị (efere, mpempe akwụkwọ na eriri igwe) na ASTM A240/A240M.Njirimara ndị yiri ya mana ọ bụchaghị otu ka akọwapụtara maka ngwaahịa ndị ọzọ dị ka ọkpọkọ na mmanya na nkọwapụta nke ha.

Ihe mejupụtara

Tebụl 1. Ihe mejupụtara ya maka 316L igwe anaghị agba nchara.

Ọkwa

 

C

Mn

Si

P

S

Cr

Mo

Ni

N

316L

Min

-

-

-

-

-

16.0

2.00

10.0

-

Oke

0.03

2.0

0.75

0,045

0.03

18.0

3.00

14.0

0.10

Ihe eji arụ ọrụ

Isiokwu 2. Mechanical Njirimara nke 316L igwe anaghị agba nchara.

Ọkwa

Tensile Str
(MPa) min

Mpụta Str
0.2% akaebe
(MPa) min

Elong
(% na 50mm) nkeji

Isi ike

Rockwell B (HR B) kacha

Brinell (HB) kacha

316L

485

170

40

95

217

Njirimara anụ ahụ

Tebụl 3.Njirimara anụ ahụ ahụkarị maka igwe anaghị agba nchara 316.

Ọkwa

Njupụta
(kg/m3)

Modul na-agbanwe
(GPa)

Ọnụ ego nke Mgbasa ọkụ (µm/m/°C)

Nrụpụta okpomọkụ
(W/mK)

Okpomọkụ akọwapụtara 0-100 Celsius
(J/kg.K)

Elec Resistivity
(nΩ.m)

0-100°C

0-315°C

0-538°C

Na 100 ° C

Na 500°C

316/L/H

8000

193

15.9

16.2

17.5

16.3

21.5

500

740

Ntụle nkọwa ọkwa ọkwa

Tebụl 4.Nkọwa ọkwa ọkwa maka igwe anaghị agba nchara 316L.

Ọkwa

UNS
No

Ochie British

Euronorm

Swedish
SS

Japanese
JIS

BS

En

No

Aha

316L

S31603

316S11

-

1.4404

X2CrNiMo17-12-2

2348

Sus 316L

Mara: Ntụnyere ndị a bụ naanị ihe.Ezubere ndepụta a dị ka ntụnyere ihe ndị yiri ya na-arụ ọrụ ọ bụghị dị ka usoro nhazi ihe nhata.Ọ bụrụ na achọrọ kpọmkwem ihe dakọtara, a ga-enyocharịrị nkọwa mbụ.

Klas nke ọzọ enwere ike

Tebụl 5. Enwere ike inweta akara ule ọzọ na 316 igwe anaghị agba nchara.

Tebụl 5.Enwere ike inweta akara ule ọzọ na igwe anaghị agba nchara 316.

Ọkwa

Kedu ihe kpatara enwere ike ịhọrọ ya kama 316?

317L

Nguzogide dị elu na chlorides karịa 316L, mana ya na nguzogide corrosion nrụgide yiri nke ahụ.

Ọkwa

Kedu ihe kpatara enwere ike ịhọrọ ya kama 316?

317L

Nguzogide dị elu na chlorides karịa 316L, mana ya na nguzogide corrosion nrụgide yiri nke ahụ.

Nguzogide corrosion

Ọ dị mma na gburugburu ikuku ikuku na ọtụtụ mgbasa ozi na-emebi emebi - n'ozuzu na-eguzogide ọgwụ karịa 304. N'okpuru pitting na crevice corrosion na gburugburu chloride na-ekpo ọkụ, na nrụgide corrosion na-agbawa n'elu ihe dị ka 60.°C. A na-ewere na ọ na-eguzogide mmiri na-aṅụ ihe ruru ihe dị ka 1000mg/L chlorides na ọnọdụ okpomọkụ, na-ebelata ruo ihe dịka 500mg/L na 60°C.

A na-ewerekarị 316 dị ka ọkọlọtọ"mmiri ọkwa igwe anaghị agba nchara, ma ọ naghị eguzogide mmiri ọkụ nke oké osimiri.N'ọtụtụ ebe mmiri 316 na-egosipụta corrosion elu, nke a na-ahụkarị dị ka ntụpọ aja aja.A na-ejikọta nke a karịsịa na mgbawa na mgbawa elu elu.

Okpomọkụ Nguzogide

Ezigbo nguzogide oxidation na ọrụ oge na-adịru 870°C na ọrụ na-aga n'ihu ruo 925°C. Na-aga n'ihu iji 316 na 425-860°A naghị atụ aro oke C ma ọ bụrụ na nguzogide corrosion nke mmiri na-esote dị mkpa.Ọkwa 316L na-eguzogide ọgwụ mgbochi carbide na enwere ike iji ya na oke okpomọkụ dị n'elu.Ọkwa 316H nwere ike dị elu na okpomọkụ dị elu ma mgbe ụfọdụ a na-eji ya maka nhazi na ngwa nwere nrụgide na okpomọkụ karịa ihe dị ka 500.°C.

Ọgwụgwọ okpomọkụ

Ngwọta Ngwọta (Annealing) - Okpomọkụ ruo 1010-1120°C na jụụ ngwa ngwa.Enweghị ike ime ka akara ule ndị a sie ike site na ọgwụgwọ okpomọkụ.

ịgbado ọkụ

Ọkachamara weldability site na njikọ ọkọlọtọ niile na ụzọ mgbochi, ma yana ma na-enweghị igwe ndochi.Akụkụ welded siri ike na ọkwa 316 chọrọ mgbakasị mgbe-weld maka nguzogide corrosion kacha.Nke a anaghị achọrọ maka 316L.

316L igwe anaghị agba nchara abụghị n'ozuzu weldable iji oxyacetylene ịgbado ọkụ ụzọ.

Ịrụ igwe

Igwe anaghị agba nchara 316L na-arụ ọrụ siri ike ma ọ bụrụ na ejiri ya ngwa ngwa.N'ihi nke a, a na-atụ aro obere ọsọ na ọnụego nri mgbe niile.

Igwe anaghị agba nchara 316L dịkwa mfe iji igwe tụnyere 316 igwe anaghị agba nchara n'ihi ọdịnaya carbon ya dị ala.

Na-ekpo ọkụ na oyi na-arụ ọrụ

316L igwe anaghị agba nchara nwere ike na-ekpo ọkụ na-arụ ọrụ na-eji ọtụtụ ndị na-ekpo ọkụ na-arụ ọrụ usoro.Igwe ọkụ na-arụ ọrụ kacha mma kwesịrị ịdị na nso 1150-1260°C, na n'ezie ekwesịghị ịbụ ihe na-erughị 930°C. Ekwesịrị ime ka annealing ọrụ post iji mee ka nguzogide corrosion kacha elu.

Arụ ọrụ oyi na-ejikarị arụ ọrụ dị ka ịkpacha ihe, ịse na stampụ nwere ike ịrụ na igwe anaghị agba nchara 316L.Ekwesịrị ịme nhichapụ ọrụ post iji wepụ nrụgide dị n'ime.

Ịgbasi ike na ịrụ ọrụ ike

Igwe anaghị agba nchara 316L adịghị esi ike na nzaghachi ọgwụgwọ okpomọkụ.Enwere ike imesi ya ike site na ịrụ ọrụ oyi, nke nwekwara ike ime ka ike dịkwuo elu.

Ngwa

Ngwa a na-ahụkarị gụnyere:

Ngwa nkwadebe nri karịsịa na gburugburu chloride.

Ọgwụ ọgwụ

Ngwa mmiri

Ngwa ihe owuwu

Ihe ntinye ahụike, gụnyere atụdo, skru na ọkpụkpụ ọkpụkpụ dịka nchikota úkwù na ikpere.

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