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- Selelekela
- paramethara
- dikopo
- dipatlisiso
Selelekela
| Sebaka sa Origin | China |
| Name Brand | ECG |
| Mofuta oa Boitsebiso | 321 |
| Standard | ASME, ASTM, EN, BS, GB, DIN, JIS jj |
| Ntho e nyenyane ea litaelo | Teknete ea 1 |
| theko | E sa khonehang |
| Lintlha tsa ho Packa | Sephutheloana se tloaelehileng sa ho romela thepa ka leoatleng |
| Nako ea thomello | Matsatsi a 5-15 ho latela tlhoko ea bareki le bongata |
| Terms tefello | TT, L / C |
| Matla a ho Fana | 3000 lithane ka selemo |
● Lihlopha tsa 321 le 347 ke litšepe tsa austenitic tsa motheo tsa 18/8 (Kereiti ea 304) tse tiisitsoeng ke tlatsetso ea Titanium (321) kapa Niobium (347). Limaraka tsena li sebelisoa hobane ha li amehe ho kutu ka har'a granular ka mor'a ho futhumatsa ka har'a mocheso oa carbide oa 425-850 ° C. Kereiti ea 321 ke boemo ba khetho bakeng sa lits'ebetso tsa mocheso o fihlang ho 900 ° C, ho kopanya matla a phahameng, ho hanyetsa sekhahla le botsitso ba mohato le ho hanyetsa ho bola ha metsi ho latelang.
Sehlopha sa 321H ke phetoho ea 321 e nang le khabone e phahameng, ho fana ka matla a ntlafetseng a mocheso o phahameng.
● Moeli o nang le 321 ke hore titanium ha e fetele hantle ho pholletsa le arc e phahameng ea mocheso, kahoo ha e khothalletsoe e le sesebelisoa se ka sebelisoang. Tabeng ena, sehlopha sa 347 se khethoa - niobium e etsa mosebetsi o tšoanang oa ho tsitsisa carbide empa e ka fetisetsoa ho pholletsa le arc welding. Ka hona, Kereiti ea 347 ke ea maemo a sebelisoang bakeng sa ho cheselletsa 321. Kereiti ea 347 e sebelisoa ka linako tse ling e le lisebelisoa tsa poleiti ea batsoali.
● Joalo ka limaraka tse ling tsa boleng bo holimo, 321 le 347 li na le litšobotsi tse ntle haholo tsa ho etsa le ho cheselletsa, li khona ho boha mariki kapa li entsoe ka rolo 'me li na le litšobotsi tse ikhethang tsa ho cheselletsa. Post-weld annealing ha e hlokehe. Li boetse li na le boima bo babatsehang, esita le ho fihlela mocheso oa cryogenic. Kereiti ea 321 ha e benche hantle, ka hona ha e khothalletsoe bakeng sa lits'ebetso tsa mokhabiso.
● Sehlopha sa 304L se fumaneha habonolo ka mefuta e mengata ea lihlahisoa, 'me kahoo hangata e sebelisoa ho khetha 321 haeba tlhokahalo e le feela bakeng sa ho hanyetsa ho bola ha intergranular ka mor'a ho cheselletsa. Leha ho le joalo, 304L e na le matla a tlase a chesang ho feta 321, kahoo ha se khetho e ntle ka ho fetisisa haeba tlhokahalo e le ho hanyetsa tikoloho ea ts'ebetso ho feta 500 ° C.
Matlotlo a bohlokoa
● Mehaho ena e hlalositsoe bakeng sa lihlahisoa tse pota-potiloeng (plate, sheet, le coil) ho ASTM A240/A240M. Lintho tse ts'oanang empa eseng hakaalo li hlalositsoe bakeng sa lihlahisoa tse ling tse kang pipe le bar ho ea ka litlhaloso tsa tsona.
Khahlano ea ho Corrosion
● E lekana le Kereiti ea 304 boemong bo sa tsitsang, 'me e phahame haeba cheseletso ka har'a limaraka tsena e so ka ea hlakoloa ka mor'a ho chesetsoa kapa haeba kopo e kenyelletsa tšebeletso ea 425-900 °C. E ipapisitse le ho putlama ha mapheo le mapheo a kolone tikolohong e futhumetseng ea chloride, le ho hatella ho phatloha ho kaholimo ho 60 °C. E nkoa e hanana le metsi a nooang ka li-chloride tse fihlang ho 200 mg/L mochesong oa tikoloho, e theohela ho hoo e ka bang 150 mg/L ho 60 °C.
Ho Hanyetsa Mocheso
● Khanyetso e ntle ea oxidation tšebeletsong ea nakoana ho ea ho 900 °C le ts'ebeletso e tsoelang pele ho 925 °C. Limaraka tsena li sebetsa hantle maemong a 425-900 °C, haholo-holo moo maemo a latelang a mofoko a leng teng. 321H e na le matla a phahameng a ho chesa 'me e loketse ka ho khetheha lits'ebetso tsa sebopeho sa mocheso o phahameng.
Phekolo ea mocheso
● Phekolo ea Tharollo (Annealing) - mocheso ho 950-1120 ° C 'me o pholile ka potlako bakeng sa ho hanyetsa ho hoholo ha kutu.
● Ho tsitsisa - mocheso ho 870-900 ° C bakeng sa hora e le 'ngoe ka 1mm ea botenya le moea o pholileng. Ho khothaletsoa ho tsitsisa maemong a boima haholo a ts'ebeletso (ka holimo ho 25 °C) haholo-holo bakeng sa thepa e kentsoeng karolong e ka holimo ea mocheso o kenang.
● Ho Imolla Khatellong ea Maikutlo - Futhumala ho 700 °C ka lihora tse 1 ho isa ho tse 2 'me moea o pholile.
● Limaraka tsena li ke ke tsa thatafatsoa ke phekolo ea mocheso.
Ho lla
● Ho cheseha hamonate ka mekhoa eohle e tloaelehileng ea fusion, ka bobeli le ntle le litšepe tsa ho tlatsa. AS 1554.6 pre-qualifying welding of 321 le 347 with Grade 347 rods or electrode; mofuta o phahameng oa silicon oa 347 le ona o tšoaneleha esale pele bakeng sa welding ea 321.
paramethara
| Lebitso la Sehlahisoa | Khoele ea Lesela |
| botenya | Mohatsela o kentsoeng: 0.15mm-10mmHot rolled: 3.0mm-180mm |
| Holim qeta | 2B, 2D, 4B, BA, HL, SEIpone, borashe, NO. 1-NO. 4, 8k |
| bophara | 8-3000mm |
| Length | 1000mm-11000mm kapa joalo ka tlhoko ea moreki |
| Standard | ASME, ASTM, EN, BS, GB, DIN, JIS jj |
| lintho tse bonahalang | 321 |
| sephutheloana | Tlhokahalo ea bareki le sephutheloana se tloaelehileng sa ho romela thepa ka ntle ho leoatle |
| Nako ea thomello | Matsatsi a 7-15 ho latela tlhoko ea bareki le bongata |
Mechanical Properties
Mehaho e tloaelehileng ea mochini bakeng sa lishiti tsa tšepe tsa grade 321 li fanoe tafoleng ea 2.
| Kereiti ya | Tensile Strength (MPa) min | Matla a Kotulo 0.2% Bopaki (MPa) min | Elongation (% in 50 mm) min | thatafala | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 321 | 515 | 205 | 40 | 95 | 217 |
| 321H | 515 | 205 | 40 | 95 | 217 |
| 347 | 515 | 205 | 40 | 92 | 201 |
Matlo a 'mele
Mehaho e tloaelehileng ea lishiti tse se nang tšepe tsa sehlopha sa 321 li fanoe tafoleng ea 3.
| Kereiti ya | Bota (kg / m3) | Elastic Modulus (GPA) | Kakaretso ea Coefficient ea Katoloso ea Thermal (μm/m/°C) | Thermal Conductivity (W/mK) | Mocheso o khethehileng 0-100 °C (J/kg.K) | Ho hanyetsa Motlakase (nΩ.m) | |||
| 0-100 ° C | 0-315 ° C | 0-538 ° C | ka mocheso oa 100 ° C | ka mocheso oa 500 ° C | |||||
| 321 | 8027 | 193 | 16.6 | 17.2 | 18.6 | 16.1 | 22.2 | 500 | 720 |
Kereiti Specification Papiso
Papiso e hakanyetsoang ea lishiti tse 321 tsa tšepe li fanoe tafoleng ea 4.
| Kereiti ya | Nomoro ea UNS | Old British | EuroNorm | Seswedishe SS | JIS ea Japane | ||
| BS | En | Che | lebitso | ||||
| 321 | S32100 | 321S31 | 58B, 58C | 1.4541 | X6CrNiTi18-10 | 2337 | SUS 321 |
| 321H | S32109 | 321S51 | - | 1.4878 | X10CrNiTi18-10 | - | SUS 321H |
| 347 | S34700 | 347S31 | 58G | 1.4550 | X6CrNiNb18-10 | 2338 | SUS 347 |
Mephato e meng e ka khonehang
Likarolo tse ling tse ka bang teng ho isa sehlopheng sa 321 sa lishiti tsa tšepe li fanoe tafoleng ea 5.
| Kereiti ya | Hobaneng e ka khethoa ho fapana le 321 |
| 304L | Ntho e hlokahalang ke ho hanyetsa ho bola ha intergranular, eseng bakeng sa matla a phahameng a mocheso |
| 3CR12 | Ke tikoloho ea "mocheso o phahameng" feela e teng… ho fihla ho 600 °C. |
| 304H | Ke tikoloho ea "mocheso o phahameng" feela e teng… ho fihla ho 800 °C. |
| 310 | Mocheso oa tikoloho ea ts'ebetso o fihla ho 1100 ° C - e phahame haholo bakeng sa 321 kapa 321H. |
| S30815(253MA) | Thempereichara ea tikoloho ea ts'ebetso e fihla ho 1150 ° C- e phahame haholo bakeng sa 321 kapa 321H. |
dikopo
● Lifofane tse ntšang mosi o mongata ka bongata
● Manonyeletso a ho atolosa
● Mokotla
● Likarolo tsa sebōpi
● Ho futhumatsa element tubing
● Li-Heat Exchangers
● Li-skrini tse lohiloeng kapa tse cheselitsoeng bakeng sa ho lokisa liminerale tse nang le mocheso o phahameng
● Spiral Welded tube bakeng sa liphaephe tse tukang le liphala
