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Giredhi 8.8, 10.9 & 12.9 Mabhaudhi nemaScrew: Yakakurudzirwa Raw Materials kune High-Simba Fasteners
2026-06-23
Kusarudza iyo chaiyo mbishi ndiyo hwaro hwekugadzira akavimbika epamusoro-simba mabhaudhi, screws, hex mabhaudhi, uye stud mabhaudhi. ISO 898-1 inotsanangudza makirasi ezvivakwa zvemakanika emametric fasteners - kazhinji Giredhi 8.8, Giredhi 10.9, uye Giredhi 12.9. Giredhi yega yega inotsanangura kushomeka kwekusimba, kusimba kwegoho, uye kuomarara iyo chete chinangwa-yakasarudzwa simbi, yakasanganiswa nekudziya kwakakodzera kurapwa, inogona kuwana nguva dzose.
Grade 8.8 Bolts & Screws - Medium-High Strength
Giredhi 8.8 fasteners (minimum tensile simba 800 MPa, goho reshiyo 0.80) ndiwo anonyanya kushandiswa-chinangwa maumbirwo fasteners pasi rese. Vanovhara hex mabhaudhi, hex cap screws, mabhaudhi engoro, mabhaudhi ezvitunha, uye akarukwa zvizere maseruvha ekuvaka simbi, maassemblies emotokari, uye muchina wakajairwa.
Zvinokurudzirwa Zvinhu
- 35# Simbi yeKabhoni yepakati — Inokodzera zvidiki-diameter fasteners (≤ M16). Inodhura-inoshanda, kuomarara kwakaringana kweGiredhi 8.8 mushure mekudzima-uye-hasha (Q&T).
- 45# Simbi yeKabhoni yepakati- Sarudzo inonyanya kufarirwa yeGiredhi 8.8 hex bolts uye stud bolts. Yakanaka machinability, yakagadzikana michina zvivakwa mushure meQ&T.
- 40Cr Alloy Simbi - Inofarirwa mabhaudhi makuru edhayamita (M20+). Kuwedzera kweChromium kunonatsiridza kuomarara uye kusimba kwakafanana pamativi ese.
Kupisa Kurapa & Zvikumbiro
Kudzima & Kupisa (Q&T). Yakajairika kuomarara huwandu: 22-32 HRC. Zvishandiso: zvimiro zvesimbi zvinongedzo, mota chassis, general muchina, flanged majoini, huni-ku-simbi yekubatanidza.
Grade 10.9 Bolts & Screws - High Strength
Giredhi 10.9 mabhaudhi uye screws zvinounza kushoma tensile simba re1,040 MPa. Iwo anotsanangurwa pese panodiwa compact, high-clamping-force kubatanidza - kubva kumota injini kuenda kune inorema earthmoving equipment. Mafomu echigadzirwa akajairwa anosanganisira socket head cap screws, flanged hex bolts, uye yakakwirira-simba stud mabhaudhi.
Zvinokurudzirwa Zvinhu
- 40Cr Alloy Simbi - Standard workhorse yeGrade 10.9. Inonyatso kuzivikanwa kuoma, inowanikwa zvakanyanya, uye yakasimbiswa kune ISO 898-1 zvinodiwa.
- 35CrMo Alloy Simbi - Chromium-molybdenum simbi ine kusimba kwepamusoro uye kuramba kuneta. Yakajairika mabhaudhi uye screws pasi pesimba rekutakura.
- 42CrMo Alloy Simbi - Yakakwira kabhoni yemukati pane 35CrMo; inopa yakanakisa simba-kusimba chiyero kune yakakura-dhayamita Giredhi 10.9 hex mabhaudhi.
- SCM435 (JIS) - Japanese Industrial Standard yakaenzana ne35CrMo. Inoshandiswa zvakanyanya muAsia-Pacific fastener yekugovera maketani; kuenderana kwakanakisa.
Kupisa Kurapa & Zvikumbiro
Kudzima & Kupisa (Q&T). Yakajairika kuomarara renji: 32–39 HRC. Zvishandiso: mabhaudhi ekumisikidza injini, kumiswa uye drivetrain fasteners, mhepo-turbine tower mabhaudhi, inorema zvimiro zvinongedzo.
Grade 12.9 Bolts & Screws — Ultra-High Strength
Giredhi 12.9 ndiyo yepamusoro yakamisikidzwa midziyo kirasi yemametric fasteners (yakaderera tensile simba 1,220 MPa). Simba repamusoro-soro rinoda simbi yealloy chaiyo ine chemistry inodzorwa zvakasimba. Aya mabhaudhi - kunyanya socket head cap screws uye akakosha mabhaudhi eindasitiri - anoshandiswa pese pese pese pese pese pese pese pese pese pese pese pese pese pese pese pese pese pese pese pese pese pese pese pese pese pese pese pekuneta.
Zvinokurudzirwa Zvinhu
- 42CrMo4 / 42CrMo Alloy Simbi - Sarudzo yepasi rose yeGiredhi 12.9. Kuomarara kwakanyanya, kusimba kukuru kwekuneta, kuomarara kwakafanana kugovera (39-44 HRC mushure meQ&T). Inoenderana ne ISO 898-1, DIN EN 10263, uye ASTM nhungamiro.
- SCM440 (JIS) - Japanese yakaenzana ne42CrMo4. Inotonga muEast Asia kugadzira; yepamusoro yepamusoro kupedzisa uye dimensional kushivirira kune socket cap screws.
- 35CrMoV Alloy Simbi - Vanadium-yakakwidziridzwa yekuvandudza kupfeka kuramba uye simba rinokambaira. Yakasarudzwa kune yakakwirira-tembiricha kana yakakwirira-vibration fastener application.
- 30CrNiMo8 Alloy Simbi - Nickel-chromium-molybdenum simbi yekunyanyisa-kurodha mamiriro. Yakatsanangurwa yeaerospace-yakatarisana uye yakakosha mainjiniya mabhaudhi.
Kupisa Kurapa & Zvikumbiro
Quenching & Tempering (Q&T) ine yakasimba kuomarara kudzora (39–44 HRC). Zvishandiso: disc brake caliper mabhaudhi, chaiyo muchina wekushandisa, yakakosha zvimisikidzo anchors, socket head cap screws (DIN 912 / ISO 4762), akakosha maindasitiri ekumisikidza.
Quick Reference: Giredhi vs. Recommended Material
| Giredhi | Min. Tensile Simba | Zvinokurudzirwa Zvinhu | Common Product Types | Typical Heat Treatment |
| 8.8 | 800 MPa | 35# / 45# Carbon Steel 40Cr Alloy Steel | Hex Bolt, Hex Cap Screw, Ngoro Bolt, Stud Bolt | Kudzima & Kudziya |
| 10.9 | 1,040 MPa | 40Cr, 35CrMo, 42CrMo SCM435 Alloy Steel | Socket Cap Screw, Flanged Bolt, Stud Bolt | Kudzima & Kudziya |
| 12.9 | 1,220 MPa | 42CrMo4 / SCM440 35CrMoV Alloy Steel | Socket Head Cap Screw, Industrial Fastener | Q&T (39–44 HRC control) |
Nezve Fujirui Metal — Professional Fastener Manufacturer & Exporter
Fujirui Metal inogadzira uye inotumira kunze kwenyika mabhaudhi akasimba-simba, masiruuru ehekisi, masiruu ekuzviboorera, mabhaudhi ezvitutu, uye anopera kaviri muGiredhi 8.8, 10.9, ne12.9. Sarudzo dzekurapa dzepamusoro: Dacromet, Ruspert, hot-dip galvanising, uye zinc plating. Zvese zvigadzirwa zvakasimbiswa kune ISO, DIN, uye ASTM zviyero, zvine zvizere zvebvunzo zvitupa (MTC) zviripo.
