AISI 4140 1.7225 42CrMo4 SCM440 B7 Steel Bar
Tlhaloso e Khutšoanyane:
AISI SAE 4140 alloy steel ke chromium molybdenum alloy steel specification e sebelisoang haholo ka sepheo se akaretsang sa tšepe e phahameng bakeng sa likarolo tse kang li-axle, shafts, bolts, gears le lisebelisoa tse ling.
Libaka tsa tšepe tsa Carbon:
AISI 4140, 1.7225 (42CrMo4), SCM440, le B7 Steel Bar ke mabitso a fapaneng bakeng sa mofuta o tšoanang oa tšepe ea alloy. Li tsebahala ka matla a holimo le ho tiea, tse sebelisoang hangata lits'ebetsong tse kang likere le liboutu. AISI 4140 ke lebitso la Amerika, 1.7225 ke maemo a Europe a EN, SCM440 ke lebitso la Japane la JIS, 'me B7 e bua ka seboka sa sehlopha sa ASTM A193. Mabitso ana a emela tšepe ea chromium-molybdenum alloy e nang le thepa e tšoanang, 'me khetho e ka itšetleha ka litekanyetso tsa libaka kapa tsa indasteri.
Litlhaloso tsa 4140 1.7225 42CrMo4 SCM440 B7:
| Kereiti | 4140 1.7225 42CrMo4 SCM440 B7 |
| Standard | ASTM A29,ASTM A193 |
| Bokaholimo | E Ntšo, E Khōlō, E Fetohile |
| Diameter Range | 1.0 ~ 300.0mm |
| Bolelele | 1 ho isa ho 6 Limithara |
| Ho sebetsa | Cold Drawn & polished Cold Drawn, Centreless Ground & polished |
| Lintho tse tala | POSCO, Baosteel, TISCO, Saky Steel, Outokumpu |
Likarolo le Melemo:
•Matla a Phahameng: Litšepe tsena li bonts'a matla a phahameng a ho tsitsa, a li etsang hore li tšoanelehe bakeng sa lits'ebetso moo matla le ho tšoarella ho leng bohlokoa.
•Toughness: Li fana ka boima bo botle le ho hanyetsa tšusumetso, ho etsa hore li khone ho mamella meroalo e boima le likhatello tse matla.
•Mefuta-futa: AISI 4140, 1.7225, 42CrMo4, SCM440, le B7 ke li-alloys tse feto-fetohang tse loketseng mefuta e mengata ea lits'ebetso, ho kenyeletsoa li-gear, bolts, shafts le likarolo tsa meralo.
•Apara Resistance: Lintho tse kopantsoeng, tse kang chromium le molybdenum, li kenya letsoho ho ntlafatseng ho hanyetsa ho apara, ho etsa hore litšepe tsena li tšoanelehe bakeng sa lits'ebetso tse tlas'a maemo a ho senya.
•Machinability: Litšepe tsena li na le machinability e ntle ha li phekoloa hantle ka mocheso, li nolofalletsa mekhoa e metle ea ho sebetsa nakong ea ho etsoa.
•Weldability: Li ka chesoa, le hoja mocheso oa pele le mocheso oa ka morao oa weld o ka hlokoa ho boloka thepa e lakatsehang le ho qoba litaba tse kang brittleness.
Sebopeho sa Lik'hemik'hale :
| Kereiti | C | Mn | P | S | Si | Cr | Mo |
| 4140 | 0.38-0.43 | 0.75- 1.0 | 0.035 | 0.040 | 0.15-0,35 | 0.8-1.10 | 0.15-0,25 |
| 42CrMo4/ 1.7225 | 0.38-0,45 | 0.6-0.90 | 0.035 | 0.035 | 0.40 | 0.9-1.20 | 0.15-0.30 |
| SCM440 | 0.38-0.43 | 0.60-0,85 | 0.03 | 0.030 | 0.15-0,35 | 0.9-1.20 | 0.15-0.30 |
| B7 | 0.37-0.49 | 0.65-1.10 | 0.035 | 0.040 | 0.15-0,35 | 0.75-1,20 | 0.15-0,25 |
Thepa ea mochini :
| Kereiti | Matla a Tensile [MPa] | Yiled Strengtu [MPa] | Elongation % |
| 4140 | 655 | 415 | 25.7 |
| 1.7225/42CrMo4 | 1080 | 930 | 12 |
| SCM440 | 1080 | 930 | 17 |
| B7 | 125 | 105 | 16 |
Tataiso ea FAQ:
Ke Hobane'ng ha U re Khetha?
•U ka fumana thepa e phethahetseng ho latela tlhoko ea hau bonyane theko e ka khonehang.
•Re boetse re fana ka Reworks, FOB, CFR, CIF, le litheko tsa ho fana ka ntlo le ntlo. Re fana ka tlhahiso ea hore u etse tumellano ea ho tsamaisa thepa e tla u baballa haholo.
•Thepa eo re fanang ka eona e ka netefatsoa ka botlalo, ho tloha ho setifikeiti sa tlhahlobo ea thepa e tala ho isa polelong ea ho qetela. (Litlaleho li tla hlaha ho latela tlhoko)
•Re netefatsa hore re tla fana ka karabo nakong ea lihora tse 24 (hangata ka hora e tšoanang)
•Fana ka tlaleho ea SGS TUV.
•Re inehetse ka ho feletseng ho bareki ba rona. Haeba ho ke ke ha khoneha ho finyella litlhoko tsa hau ka mor'a ho hlahloba likhetho tsohle, re ke ke ra u khelosa ka ho etsa litšepiso tsa bohata tse tla theha likamano tse ntle tsa bareki.
•Fana ka tšebeletso ea sebaka se le seng.
4140 vs 42CRMO4 - Phapano ke Efe?
AISI 4140 le 42CrMo4 ha e le hantle ke mofuta o tšoanang oa tšepe, 'me AISI 4140 e le lebitso la Amerika 'me 42CrMo4 e le lebitso la Europe. Ba arolelana likarolo tse tšoanang tsa lik'hemik'hale, matla a phahameng, le ho tiea, ho etsa hore li tšoanelehe bakeng sa lisebelisoa tse kang likere le liboutu. Leha ho na le mabitso a fapaneng le maemo a libaka, hangata a nkuoa a ka fetoha ka lebaka la thepa e bapisoang.
42CrMo4 tšepe ke eng?
42CrMo4 ke tšepe ea chromium-molybdenum alloy e khethiloeng ho latela maemo a Europe EN 10083. E tsebahala ka matla a eona a holimo, ho tiea le ho thatafala ha eona. Ka khabone ea 0.38% ho isa ho 0.45%, hangata e sebelisoa lits'ebetsong tse hlokang likarolo tse matla, joalo ka likere, li-crankshafts, le lithupa tse hokahanyang liindasteri tse kang tsa likoloi le tsa sefofane. Tšepe e arabela hantle kalafo ea mocheso, e fana ka bokhoni ba ho fetola thepa ea mochine, 'me e nkoa e le ea machaba e lekanang le litlhaloso tse ling tse kang AISI 4140 le SCM440.
Grade B7 steel ke eng?
Sehlopha sa B7 ke tlhaloso e ka har'a maemo a ASTM A193, e koahelang lisebelisoa tsa bolt tse matla haholo bakeng sa ho sebelisoa mocheso o phahameng kapa tšebeletso ea khatello e phahameng. ASTM A193 ke tekanyetso e entsoeng ke ASTM International (eo pele e neng e tsejoa e le American Society for Testing and Materials) 'me e sebelisoa haholo indastering ea oli le khase, petrochemical, le tlhahiso ea matla. e tingoang le ho halefa (e phekotsoeng ka mocheso) ho finyella thepa e lakatsehang ea mechine.Ho bohlokoa ho hlokomela hore tšepe ea Sehlopha sa B7 e atisa ho sebelisoa hammoho le linate tsa Grade 2H ho etsa bonnete ba ho lumellana le ts'ebetso ho likopo tse batlang. Ha ho hlalositsoe, lisebelisoa li tlameha ho fihlela litlhoko tse boletsoeng ho litekanyetso tsa ASTM A193 le A194 ho netefatsa matla a nepahetseng, ductility le lisebelisoa tse ling tsa mochini.
Bareki ba Rona
Maikutlo a tsoang ho bareki ba rona
AISI 4140, 1.7225, 42CrMo4, SCM440, le li-bars tsa tšepe tsa B7 li arabela hantle kalafo ea mocheso, e lumellang ho lokisoa ha thepa ea mechine e kang ho thatafala le ho thatafala. factor.Li fana ka boima bo botle le ho hanyetsa tšusumetso, ho etsa hore li khone ho mamella meroalo e boima le likhatello tse matla. Litšepe tsa tšepe li na le mefuta e mengata 'me li fumana lisebelisoa liindastering tse sa tšoaneng, ho akarelletsa le likoloi, sefofane, kaho, le tlhahiso.The alloying elements, such as chromium. le molybdenum, li kenya letsoho ho ntlafatseng ho hanyetsa ho apara, ho etsa hore litšepe tsena li tšoanelehe bakeng sa likopo tse tlas'a maemo a abrasive.
Ho paka:
1. Ho paka ke habohlokoa haholo-holo tabeng ea thepa ea machaba eo thepa e fetang ka litsela tse fapa-fapaneng ho fihla moo e eang teng, kahoo re amehile haholo ka ho paka.
2. Saky Steel e paka thepa ea rona ka mekhoa e mengata ho latela lihlahisoa. Re paka lihlahisoa tsa rona ka mekhoa e mengata, joalo ka,
