Lintlha tsa tekheniki
Sebopeho sa Lik'hemik'hale - Stainless Steel 317/317L
| Kereiti |
317 |
317L |
| Khetho ea UNS |
S31700 |
S31703 |
| Khabone (C) Max. |
0.08 |
0.035* |
| Manganese (Mn) Max. |
2.00 |
2.00 |
| Phosphorous (P) Max. |
0.040 |
0.04 |
| Sebabole (S) Max. |
0.03 |
0.03 |
| Silicon (Si) Max. |
1.00 |
1.00 |
| Chromium (Cr) |
18.0–20.0 |
18.0–20.0 |
| Nickel (Ni) |
11.0–14.0 |
11.0–15.0 |
| Molybdenum (Mo) |
3.0–4.0 |
3.0–4.0 |
| Naetrojene (N) |
- |
- |
| Tshipi (Fe) |
Bal. |
Bal. |
| Lintlha Tse Ling |
- |
- |
Thepa e Tloaelehileng ea Mechini- Steel Stainless 317L
| Lintho tse bonahalang |
Ultimate Tensile Strength (Mpa) |
0.2 % Matla a Kotulo (Mpa) |
% Elongation ho 2" |
Rockwell B Hardness |
| Motsoako oa 317 |
515 |
205 |
35 |
95 |
| Motsoako oa 317L |
515 |
205 |
40 |
95 |
| Bonyane ba Thepa ea Mechini ka ASTM A240 le ASME SA 240 |
| Lintho Tsa 'Mele |
Metric |
Senyesemane |
Maikutlo |
| Botenya |
8g/cc |
0.289 lb/in³ |
|
| Thepa ea Mechini |
| Thata, Brinell |
Boholo ba 217 |
Boholo ba 217 |
ASTM A240 |
| Matla a Tensile, a ho qetela |
Min 515 MPa |
Min 74700 psi |
ASTM A240 |
| Matla a Tensile, Kotulo |
Min 205 MPa |
Min 29700 psi |
ASTM A240 |
| Elongation at Break |
Ka tlase ho 40% |
Ka tlase ho 40% |
ASTM A240 |
| Modulus ea Elasticity |
200 GPA |
29000 ksi |
|
| Thepa ea Motlakase |
| Ho hanyetsa Motlakase |
7.9e-005 ohm-cm |
7.9e-005 ohm-cm |
|
| Magnetic Permeability |
1.0028 |
1.0028 |
poleiti e felletseng ea 0.5 ″; 1.0028 65% e batang e sebelitseng 0.5 ″ poleiti |
317L(1.4438) Thepa e Akaretsang
Alloy 317LMN le 317L ke molybdenum-bearing austenitic stainless steel tube e nang le khanyetso e matla haholo ea ho hanyetsa lik'hemik'hale ha e bapisoa le phala e tloaelehileng ea chromium-nickel austenitic stainless steel pipe e kang Alloy 304. Ho phaella moo, 317LMN le 317L li-alloys li fana ka li-alloys tse phahameng ho feta k'holejeng. -ho phatloha, le matla a ho tsieleha ha mocheso o phahameng ho feta litšepe tse tloaelehileng tse sa hloekang. Tsohle ke limaraka tse tlase tsa khabone kapa "L" ho fana ka khanyetso ho ts'usumetso nakong ea welding le lits'ebetso tse ling tsa mocheso.
Mabitso a "M" le "N" a bontša hore liqapi li na le maemo a eketsehileng a molybdenum le nitrogen ka ho latellana. Motsoako oa molybdenum le naetrojene o sebetsa hantle haholo ho matlafatseng khanyetso ea likoti le maphao, haholo-holo melapong e nang le asiti, chloride le metsoako ea sebabole mochesong o phahameng. Nitrojene e boetse e thusa ho eketsa matla a li-alloys tsena. Li-alloys ka bobeli li etselitsoe maemo a thata a ts'ebeletso joalo ka lits'ebetso tsa flue gas desulfurization (FGD).
Ntle le meaho e metle ea ho hanyetsa kutu le matla, li-alloys 316, 316L, le 317L Cr-Ni-Mo li boetse li fana ka boleng bo botle ba masela le sebopeho se tloaelehileng sa "austenitic stainless steel tubing".
317L (1.4438) Phekolo ea MochesoAnealing
Pipe ea tšepe e sa hloekang ea austenitic e fanoe sebakeng sa leloala le nang le annealed e loketse ho sebelisoa. Kalafo ea mocheso e ka 'na ea hlokahala nakong kapa ka mor'a ho etsoa ho tlosa liphello tsa ho bopeha ha serame kapa ho qhibilihisa chromium carbides e nang le metsi e bakoang ke ho pepesehela mocheso. Bakeng sa Alloys 316 le 317L anneal ea tharollo e finyelloa ka ho futhumatsa ka 1900 ho 2150 ° F (1040 ho 1175 ° C) mefuta e fapaneng ea mocheso e lateloang ke ho pholisa moea kapa ho tima metsi, ho itšetlehile ka botenya ba karolo. Pholiso e lokela ho ba kapele ka ho lekaneng ho tloha ho 1500 ho isa ho 800°F (816 ho isa ho 427°C) ho qoba ho na hape ha chromium carbides le ho fana ka khanyetso e nepahetseng ea kutu. Ketsahalong e 'ngoe le e' ngoe, tšepe e lokela ho pholile ho tloha mocheso oa anneal ho ea mocheso o motšo ka nako e ka tlaase ho metsotso e meraro.
Ho qapa
Mocheso oa pele o khothalletsoang ke 2100-2200 ° F (1150-1205 ° C) o nang le moeli oa ho qetela oa 1700-1750 ° F (927-955 ° C).
Anealing
317LMN le Alloy 317L litšepe tse sa hloekang li ka kenngoa ka har'a mocheso oa 1975-2150 ° F (1080-1175 ° C) o lateloa ke moea o pholileng kapa o tima metsi, ho itšetlehile ka botenya. Lipoleiti li lokela ho kenngoa pakeng tsa 2100 ° F (1150 ° C) le 2150 ° F (1175 ° C). Tšepe e lokela ho pholile ho tloha mocheso oa annealing (ho tloha bofubelu / bosoeu ho ea ho o motšo) ka nako e ka tlase ho metsotso e meraro.
Ho thatafala
- Limaraka tsena ha li thatafalloe ke kalafo ea mocheso.
- Alloys 316 le 317L tube ea tšepe e sa hloekang e ke ke ea thatafatsoa ke phekolo ea mocheso.
LBHP: Na u khamphani ea khoebo kapa moetsi?
A: Re k'hamphani ea khoebo e nang le boiphihlelo ba lilemo tse fetang 15 khoebong ea ho romelloa kantle ho naha ea tšepe, re na le tšebelisano ea nako e telele le lifeme tse kholo tsa China.
P: Na u tla tlisa thepa ka nako?
A: E, re tšepisa ho fana ka lihlahisoa tsa boleng bo phahameng ka ho fetisisa le ho fana ka thepa ka nako.Botšepehi ke molao oa k'hamphani ea rona.
P: O fana ka disampole? na ke mahala kapa ho feta?
A: Mohlala o ka fa moreki mahala, empa thepa ea li-courier e tla koaheloa ke akhaonto ea bareki.
P: Na u amohela tlhahlobo ea motho oa boraro?
A: E, re amohela ka botlalo.
P: Lihlahisoa tsa hau tsa mantlha ke life?
A: Tšepe ea carbon, tšepe ea alloy, poleiti ea tšepe e sa hloekang/coil, phala le lisebelisoa, likarolo jj.
Q: Na o ka amohela odara ea customzied?
A: E, re a tiisa.
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