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Gulu la 8.8, 10.9 & 12.9 Bolts ndi Screws: Zida Zopangira Zopangira Zomangamanga Zamphamvu Zapamwamba
2026-06-23
Kusankha zopangira zoyenera ndiye maziko opangira mabawuti odalirika amphamvu kwambiri, zomangira, ma bolt a hex, ndi ma bolts. ISO 898-1 imatanthawuza makalasi azinthu zamakina a zomangira ma metric - nthawi zambiri Giredi 8.8, Giredi 10.9, ndi Giredi 12.9. Kalasi iliyonse imatchula mphamvu zochepetsera zochepa, mphamvu zokolola, ndi kuuma komwe chitsulo chosankhidwa ndi cholinga chokha, chophatikizidwa ndi chithandizo choyenera cha kutentha, chingathe kukwaniritsa nthawi zonse.
Gulu la 8.8 Bolts & Screws - Mphamvu Zapakatikati-Zam'mwamba
Zomangira za giredi 8.8 (mphamvu zosachepera 800 MPa, chiŵerengero cha zokolola 0.80) ndizo zomangira zomwe zimagwiritsidwa ntchito kwambiri padziko lonse lapansi. Amaphimba ma bolt a hex, zomangira za hex cap, mabawuti onyamula, ma bolts, ndi zomangira zomangira zitsulo, zomangira zamagalimoto, ndi makina wamba.
Zida Zolangizidwa
- 35# Chitsulo Chapakatikati-Kaboni — Zoyenera zomangira zazing'ono (≤ M16). Zotsika mtengo, zolimba zolimba za Giredi 8.8 pambuyo pozimitsa-ndi-kupsa mtima (Q&T).
- 45# Chitsulo Chapakatikati-Kaboni — Kusankha kodziwika kwambiri kwa ma bawuti a Grade 8.8 hex ndi ma stud bolts. Makina abwino, makina okhazikika pambuyo pa Q&T.
- 40Cr Aloyi Chitsulo - Zokonda mabawuti akulu akulu (M20+). Kuphatikiza kwa Chromium kumapangitsa kulimba komanso kukhazikika kofanana m'magawo osiyanasiyana.
Chithandizo cha Kutentha & Ntchito
Quenching & Tempering (Q&T). Mtundu wokhazikika wa kuuma: 22-32 HRC. Ntchito: zolumikizira zitsulo zomangika, chassis yamagalimoto, makina wamba, zolumikizira zopindika, zolumikizira zamatabwa ndi zitsulo.
Gulu la 10.9 Bolts & Screws - Mphamvu Zapamwamba
Maboti a Giredi 10.9 ndi zomangira zimapereka mphamvu yocheperako ya 1,040 MPa. Amatchulidwa paliponse pomwe pali kulumikizana kolimba, kolimba kwambiri komwe kumafunikira - kuchokera kumainjini zamagalimoto kupita ku zida zonyamula nthaka zolemera. Mitundu yazinthu zodziwika bwino imaphatikizira zomangira za socket head cap, ma bolt a hex flanged, ndi ma stud bolts olimba kwambiri.
Zida Zolangizidwa
- 40Cr Aloyi Chitsulo - Standard workhorse kwa Giredi 10.9. Kuwumitsa kodziwika bwino, kupezeka kwambiri, ndikutsimikiziridwa ndi zofunikira za ISO 898-1.
- 35CrMo Aloyi Chitsulo - Chromium-molybdenum chitsulo chokhala ndi kulimba kwapamwamba komanso kukana kutopa. Zofanana ndi ma bolts ndi zomangira pansi pa kukweza kwamphamvu.
- 42CrMo Aloyi Chitsulo - Mpweya wambiri wa carbon kuposa 35CrMo; imapereka mphamvu zolimba zolimba pamabowo akulu akulu a Giredi 10.9 hex.
- SCM435 (JIS) - Japan Industrial Standard yofanana ndi 35CrMo. Amagwiritsidwa ntchito kwambiri ku Asia-Pacific fastener chain chain; kusasinthasintha kwabwino.
Chithandizo cha Kutentha & Ntchito
Quenching & Tempering (Q&T). Mtundu wokhazikika wa kuuma: 32-39 HRC. Mapulogalamu: mabawuti oyika injini, zomangira zoyimitsidwa ndi zomangira ma drivetrain, ma bolt a nsanja yamphepo, zolumikizira zolemetsa.
Kalasi 12.9 Bolts & Screws - Ultra-High Mphamvu
Gulu 12.9 ndiye gulu lapamwamba kwambiri lazinthu zomangira ma metric (mphamvu zocheperako 1,220 MPa). Mphamvu zapamwamba kwambiri zimafuna chitsulo chokhazikika cha alloy chokhala ndi chemistry yoyendetsedwa bwino. Zomangira izi - makamaka zomangira za socket head cap ndi mabawuti apadera amakampani - zimagwiritsidwa ntchito kulikonse komwe chitetezo ndi moyo wotopa sizingangolephereka.
Zida Zolangizidwa
- 42CrMo4 / 42CrMo Aloyi Zitsulo - Chisankho chapadziko lonse lapansi cha Giredi 12.9. Kulimba mtima kwabwino, mphamvu yakutopa kwambiri, kugawa kofananako (39-44 HRC pambuyo pa Q&T). Imagwirizana ndi ISO 898-1, DIN EN 10263, ndi malangizo a ASTM.
- SCM440 (JIS) - Chijapani chofanana ndi 42CrMo4. Odziwika kwambiri ku East Asia kupanga; kumaliza kwapamwamba komanso kulolerana kowoneka bwino kwa zomangira za socket cap.
- 35CrMoV Aloyi Chitsulo - Vanadium-wowonjezera kuti musamavalidwe bwino komanso mphamvu zokwawa. Zosankhidwira ntchito zomangirira zotentha kwambiri kapena zogwedezeka kwambiri.
- 30CrNiMo8 Alloy Steel - Nickel-chromium-molybdenum chitsulo chodzaza kwambiri. Zopangidwira ma bolts oyandikana nawo komanso ofunikira a engineering.
Chithandizo cha Kutentha & Ntchito
Quenching & Tempering (Q&T) yokhala ndi kuuma kolimba (39–44 HRC). Mapulogalamu: mabawuti a disk brake caliper, zida zamakina olondola, anangula ofunikira kwambiri, zomangira za socket head cap (DIN 912 / ISO 4762), zomangira zapadera zamakampani.
Quick Reference: Giredi vs. Recommended Material
| Gulu | Min. Kulimbitsa Mphamvu | Zida Zolangizidwa | Mitundu Yodziwika Yogulitsa | Chithandizo Chachidziwitso Chotentha |
| 8.8 | 800 MPa | 35# / 45# Chitsulo cha Kaboni 40Cr Aloyi Chitsulo | Hex Bolt, Hex Cap Screw, Bolt ya Carriage, Stud Bolt | Kuchepetsa & Kuchepetsa |
| 10.9 | 1,040 MPa | 40Cr, 35CrMo, 42CrMo SCM435 Aloyi Zitsulo | Socket Cap Screw, Flanged Bolt, Stud Bolt | Kuchepetsa & Kuchepetsa |
| 12.9 | 1,220 MPa | 42CrMo4 / SCM440 35CrMoV Aloyi Chitsulo | Socket Head Cap Screw, Industrial Fastener | Q&T (39–44 HRC control) |
About Fujirui Metal — Professional Fastener Manufacturer & Exporter
Fujirui Metal imapanga ndi kutumiza kunja zomangira zolondola kwambiri kuphatikiza ma bolt amphamvu kwambiri, zomangira za hex, zomangira zodzibowolera zokha, zomangira, ndi zomata zowirikiza pa Siredi 8.8, 10.9, ndi 12.9. Njira zochizira pamwamba: Dacromet, Ruspert, hot-dip galvanising, ndi zinc plating. Zogulitsa zonse zimatsimikiziridwa ndi miyezo ya ISO, DIN, ndi ASTM, yokhala ndi satifiketi yathunthu yoyeserera (MTC) yomwe ilipo.
