Kereiti ea 8.8, 10.9 & 12.9 Bolts and Screw: Lisebelisuoa tse Retelitsoeng bakeng sa Li-Fasteners tsa Matla a Phahameng

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 Kereiti ea 8.8, 10.9 & 12.9 Bolts and Screw: Lisebelisuoa tse Retelitsoeng bakeng sa Li-Fasteners tsa Matla a Phahameng 

2026-06-23

Ho khetha thepa e tala e nepahetseng ke motheo oa ho hlahisa liboutu tse matla, li-screws, liboutu tsa hex, le liboutu. ISO 898-1 e hlalosa litlelase tsa thepa ea mochini bakeng sa li-fasteners tsa metric - hangata Kereiti ea 8.8, Kereiti ea 10.9, le Kereiti ea 12.9. Sehlopha se seng le se seng se totobatsa matla a fokolang, matla a tlhahiso, le ho thatafala hoo feela tšepe e khethiloeng ka morero, e kopantsoeng le phekolo e nepahetseng ea mocheso, e ka finyellang ka mokhoa o tsitsitseng.

Kereiti ya 8.8, 10.9 & 12.9 Bolts le Screw

Sehlopha sa 8.8 Bolts & Screws - Matla a Bohareng a Phahameng

Li-fasteners tsa Kereiti ea 8.8 (matla a fokolang a 800 MPa, karo-karolelano ea lihlahisoa 0.80) ke li-fasteners tse sebelisoang ka kakaretso lefatšeng ka bophara. Ba koahela liboutu tsa hex, likurufu tsa hex cap, liboutu tsa kariki, liboutu tsa stud, le likurufu tse khoele ka botlalo bakeng sa kaho ea tšepe, likopano tsa likoloi le metjhini e akaretsang.

Lisebelisoa tse khothalelitsoeng

  • 35# Tšepe ea Khabone e Mahareng — E loketse li-fasteners tse nyenyane tse bophara ba bophara (≤ M16). Ho boloka litšenyehelo, boima bo lekaneng ba Kereiti ea 8.8 ka mor'a quench-and-temper (Q&T).
  • 45# Tšepe ea Khabone e Mahareng — Khetho e tsebahalang haholo bakeng sa Grade 8.8 hex bolts le stud bolts. Ho sebetsa hantle, thepa e tsitsitseng ea mochini kamora Q&T.
  • 40Cr Alloy Steel - E khethoa bakeng sa liboutu tse kholoanyane tsa bophara (M20+). Keketso ea Chromium e ntlafatsa ho thatafala le ho ts'oana ho ts'oana ho pholletsa le likarolo tse fapaneng.

Phekolo ea Mocheso & Likopo

Quenching & Tempering (Q&T). Mofuta o tloaelehileng oa boima: 22-32 HRC. Lisebelisoa: likhokahano tsa tšepe ea sebopeho, chassis ea likoloi, mechini e akaretsang, manonyeletso a nang le mapheo, likhokahano tsa lehong ho ea ho tšepe.

Sehlopha sa 10.9 Bolts & Screws - Matla a Phahameng

Liboutu le likurufu tsa Kereiti ea 10.9 li fana ka matla a fokolang a 1,040 MPa. Li hlakisitsoe hohle moo likhokahano tse momahaneng, tse phahameng-tlapang li hlokahalang - ho tloha ho lienjine tsa makoloi ho isa ho thepa e boima ea lefatše. Mefuta e tloaelehileng ea lihlahisoa e kenyelletsa li-screws tsa socket head cap, liboutu tsa hex tse flanged, le liboutu tse matla haholo.

Lisebelisoa tse khothalelitsoeng

  • 40Cr Alloy Steel - Pere e tlwaelehileng bakeng sa Kereiti ya 10.9. Ho thatafala ho tsebahalang, ho fumaneha hohle, 'me ho netefalitsoe ho latela litlhoko tsa ISO 898-1.
  • 35CrMo Alloy Steel - Chromium-molybdenum tšepe e nang le boima bo phahameng le ho hanyetsa mokhathala. E tloaelehileng bakeng sa liboutu le li-screws tlas'a loading e matla.
  • 42CrMo Alloy Steel - Khabone e phahameng ho feta 35CrMo; e fana ka botsitso bo matla ba ho tiea bakeng sa liboutu tsa hex tse bophara bo boholo ba Kereiti ea 10.9.
  • SCM435 (JIS) - Maemo a Indasteri a Japane a lekanang le 35CrMo. E sebelisoa haholo liketane tsa phepelo ea li-fastener tsa Asia-Pacific; tsitsinyeho e babatsehang.

Phekolo ea Mocheso & Likopo

Quenching & Tempering (Q&T). Mofuta o tloaelehileng oa boima: 32-39 HRC. Lits'ebetso: liboutu tse holisang enjene, lifasefate tse emisitsoeng le li-drivetrain, liboutu tsa tora ea moea oa turbine, likhokahano tse boima tsa meralo.

Grade 12.9 Bolts & Screws — Ultra-High Strength

Kereiti ea 12.9 ke sehlopha sa thepa se emeng se phahameng ka ho fetesisa bakeng sa li-fasteners tsa metric (matla a fokolang a 1,220 MPa). Matla a phahameng haholo a hloka tšepe ea alloy e nepahetseng e nang le k'hemistri e laoloang ka thata. Li-fasteners - haholo-holo li-screws tsa socket head cap le liboutu tse khethehileng tsa indasteri - li sebelisoa hohle moo libaka tsa polokeho le bophelo ba mokhathala li ke keng tsa buisanoa.

Lisebelisoa tse khothalelitsoeng

  • 42CrMo4 / 42CrMo Alloy Steel — Khetho ea maemo a lefats'e bakeng sa Kereiti ea 12.9. Ho thatafala ho hoholo, matla a mokhathala a phahameng, kabo ea boima bo tšoanang (39–44 HRC kamora Q&T). E lumellana le ISO 898-1, DIN EN 10263, le litataiso tsa ASTM.
  • SCM440 (JIS) - Sejapane se lekanang le 42CrMo4. E laola tlhahiso ea Asia Bochabela; pheletso e phahameng ea bokaholimo le mamello ea boholo bakeng sa li-screws tsa socket cap.
  • 35CrMoV Alloy Steel - Banadium e ntlafalitsoe bakeng sa ho hanyetsa ho apara hantle le matla a ho qhekella. E khethiloe bakeng sa lits'ebetso tse tiisang mocheso o phahameng kapa tse thothomelang haholo.
  • 30CrNiMo8 Alloy Steel - Nickel-chromium-molybdenum tšepe bakeng sa maemo a boima haholo. E khethiloe bakeng sa liboutu tsa boenjineri tse haufi le sebaka sa sefofane le tsa bohlokoa.

Phekolo ea Mocheso & Likopo

Quenching & Tempering (Q&T) e nang le taolo e thata ea boima (39–44 HRC). Lisebelisoa: liboutu tsa "disk brake caliper", lisebelisoa tsa mochini o nepahetseng, li-ankora tsa bohlokoa tsa sebopeho, li-screws tsa socket head cap (DIN 912 / ISO 4762), li-fasteners tse khethehileng tsa indasteri.

Quick Reference: Grade vs. Recommended Material

Kereiti Min. Tensile Matla Lisebelisoa tse khothalelitsoeng Mefuta e Tloaelehileng ea Lihlahisoa Kalafo e Tloaelehileng ea Mocheso
8.8 800 MPa 35# / 45# Carbon Steel
40Cr Alloy tšepe
Hex Bolt, Hex Cap Screw,
Bolt ea koloi, Stud Bolt
Ho khutsisa & ho halefisa
10.9 1,040 MPa 40Cr, 35CrMo, 42CrMo
SCM435 motsoako oa tšepe
Socket Cap Screw,
Flanged Bolt, Stud Bolt
Ho khutsisa & ho halefisa
12.9 1,220 MPa 42CrMo4 / SCM440
35CrMoV Alloy tšepe
Socket Head Cap Screw,
Industrial Fastener
Q&T  (39–44 taolo ea HRC)

Mabapi le Fujirui Metal — Professional Fastener Manufacturer & Exporter

Fujirui Metal e etsa le ho romela kantle litšepe tse nepahetseng tse kenyellelitsoeng liboutu tse matla haholo, likurufu tsa hex, likurufu tsa ho itšeha, liboutu, le lithupa tse nang le mahlakore a mabeli ho pholletsa le Kereiti ea 8.8, 10.9, le 12.9. Likhetho tsa kalafo ea bokaholimo: Dacromet, Ruspert, hot-dip galvanising, le zinc plating. Lihlahisoa tsohle li netefalitsoe ho latela maemo a ISO, DIN, le ASTM, 'me ho na le litifikeiti tse felletseng tsa tlhahlobo ea thepa (MTC).

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