Grade 10.9 Blue-White Zinc Hex Bolt DIN 933 | ISO 4017 | Yakazara-Thread Hexagon Bolt ine Zinc Electroplating & Blue-White Passivation

2026-07-10

Iyo Giredhi 10.9 yeBlue-White Zinc DIN 933 hex bhaudhi inopa yakakwirira-simba yekusunga simba (tensile simba ≥ 1,040 MPa) ine inodhura-inoshanda, RoHS-inoenderana nekushongedza-uye-inoshanda pamusoro pekupedzisira. Ndiyo yekusimbisa yesarudzo yemotokari injini maassemblies, anorema muchina, mhepo turbine yekubatanidza, uye simbi yekugadzira uko kunodiwa, yakakwirira-clamping-simba majoini.

Giredhi 10.9 DIN 933 Hex Bolt ine Blue-White Zinc Electroplating Pedzisa

Chikamu 1 - Giredhi 10.9: High-Simba Fastener Kirasi

Giredhi 10.9 ikirasi yechipiri-yepamusoro-soro yakamisikidzwa midziyo yemametric fasteners pasi peISO 898-1, yakagara pakati peiyo inonyanya kushandiswa Giredhi 8.8 uye yekupedzisira-yepamusoro-simba Giredhi 12.9. Inopa chiyero chinomanikidza chesimba rakakwirira, inogamuchirika ductility, uye inofanotaura kuneta kuita, ichiiita iyo yakasarudzika yakatarwa yeakakomba majoini majoini mumotokari, simba, uye inorema muchina zvikamu.

Property Kirasi Decoding

Nhamba yekutanga (10): Inoratidza 1/100 yezita rekushomeka kwesimba rekusimba muMPa → shoma shoma simba = 1,000 MPa (yakamisikidzwa pa1,040 MPa).
Nhamba yechipiri (9): Inotaridza chiyero chesimba regoho diki kusvika kusimba rekushomeka × 10 → goho reshiyo = 0.90, zvichireva simba regoho diki = 940 MPa.

Mechanical Properties

Property	Value	Standard	Test Method
Kusimba Simba (min.)	1,040 MPa	ISO 898-1	Tensile test
Goho Simba (min.)	940 MPa	ISO 898-1	Tensile test
Proof Load Stress	830 MPa	ISO 898-1	Proof load
Yield Ratio	0.90	ISO 898-1	Calculation
Kuoma (Rockwell)	32–39 HRC	ISO 6508	Rockwell bvunzo
Kuoma (Vickers)	320–380 HV	ISO 6507	Vickers bvunzo
Elongation paBreak (min.)	9%	ISO 898-1	Tensile test
Impact Kuoma (min.)	27 J @ -20 °C	ISO 898-1	Charpy test

Giredhi 10.9 fasteners inogadzirwa kubva kune alloy simbi - kazhinji 40Cr, 35CrMo, 42CrMo, kana SCM435 - iyo inodzimwa nekudziya (Q&T) kurapwa kwekupisa. Iyo yakakwira kabhoni uye alloy zvemukati (Cr, Mo) inopa kuomarara kunodiwa kuti uwane inodiwa 32-39 HRC yepakati kuomarara mukati mechikamu chemuchinjiko, kunyangwe mumadhayamita akakura (kusvika kuM36).

Minda Yekushandisa Yakakosha

Motokari: Injini inokwirisa mabhaudhi, mabhaudhi anosungirira tsvimbo, zvibatiso zveflywheel, mabhaudhi ekumisa ruoko pivot, chidhiraivho chinongedzo.
Mhepo simba: Shongwe chikamu flanges, nacelle structural connections, pitch bearing bolts.
Heavy machines: Excavator track mabhaudhi, bulldozer furemu yekubatanidza, crane yakauraya ring fasteners.
Kugadzirwa kwesimbi: Pre-yakatakura friction-grip yekubatanidza (BS EN 14399-3 HR system), mabhiriji anotakura magungano.

Chikamu 2 - DIN 933: Yakazara-Thread Hexagon Bolt Standard

DIN 933 inotsanangura mabhaudhi ane hexagon-musoro akarukwa zvizere ane metric coarse pitch threads kubva kuM1.6 kusvika kuM52. Kunyangwe tekinoroji yakasimudzwa neISO 4017, DIN 933 inoramba iri iyo inowanzo tariswa bhaudhi chiyero muEuropean magwaro ekutenga, tekinoroji kudhirowa, uye mabhiri emidziyo pasi rese.

Key Dimensional Features

Full-thread shank: Kurukwa kunotambanuka nehurefu hwese, kukwirisa kuchinjika kureba kwekusungirira uye kurerutsa dhairekitori - chikamu chimwe chinotsiva akawanda grip-kureba-chaiwo mabhaudhi akaiswa zvishoma.
Hexagon head: Upamhi mumafurati (s) paDIN EN ISO 272. Kureba kwemusoro wezita (k) kunopa nzvimbo inokwana yekutakurisa maassembly ewachi uye socket engagement.
Metric coarse pitch: Per ISO 261/ISO 724. Shinda dzakakasharara dzinoshivirira kukuvadzwa kwepasi, hadzinyanye kuita garage, uye dzinokurumidza kuungana pane dzimwe nzira dzepitch-pitch.
Tolerance giredhi: Chigadzirwa chegiredhi A chehukuru ≤ M24 uye kureba ≤ 10d kana ≤ 150 mm; chigadzirwa giredhi B yehukuru hombe (ISO 4759-1).

DIN 933 Grade 10.9 Quick Reference

Yakajairwa mwero DIN 933 saizi yeGiredhi 10.9 kugadzirwa (M6–M24). Tensile mitoro inoverengerwa pane yakaderera tensile stress nzvimbo × 1,040 MPa.

Size	Pitch (mm)	s (mm)	k (mm)	Min. Tensile Load (kN)	Length Range
M6	1.00	10	4.0	15.8	10–90 mm
M8	1.25	13	5.3	29.1	16–150 mm
M10	1.50	17	6.4	46.5	20-200 mm
M12	1.75	19	7.5	67.3	20-300 mm
M16	2.00	24	10.0	122	25–300 mm
M20	2.50	30	12.5	191	30-400 mm

s = upamhi hwezita pamafurati, k = kureba kwemusoro. Tensile mutoro pane ISO 898-1 kushushikana nzvimbo × 1,040 MPa.

Marking Identification

Imwe neimwe Giredhi 10.9 DIN 933 bhaudhi inoiswa mumusoro ne“10.9” uye chiratidzo chemugadziri sezvinodiwa neISO 898-1. Iyo yebhuruu-chena zinc kupedzisa inopa nekukurumidza chiziviso chekuona uye inobatsira nemhando yekudzora kurongedza.

Chikamu 3 - Blue-White Zinc Electroplating

Blue-white zinc (Zn/An/Cn/T0 per ISO 2081, kana Type II SC 1 per ASTM B633) iri zinc electroplated coating yakapedzwa ne trivalent chromium (Cr-III) blue-white conversion layer. Inosanganisa kudzivirira kwekudzivirirwa kwecorrosion, chitarisiko chinoyevedza chekushongedza, uye mutengo wakaderera - zvichiita kuti ive imwe yeanonyanya kufarirwa pamusoro pekurapa kwepamusoro-simba fasteners anoshandiswa munzvimbo dzakadzivirirwa.

Mashandiro eBlue-White Zinc Plating Anoshanda

Iyo nzira inosanganisira matanho matatu anoteedzana:

Electro-kuchenesa & activation: Iyo bhaudhi yepamusoro yakaderedzwa uye acid-yakagadziriswa kuti ive nechokwadi cheuniform zinc adhesion.
Zinc electrodeposition: Iro zinc yakachena (8-12 µm) inoiswa electrolytically pane substrate yesimbi muasidhi kana alkaline zinc bath.
Blue-white passivation: Iyo bhaudhi ichangobva kuputirwa inonyudzwa mune trivalent chromium (Cr-III) passivation mhinduro, ichigadzira yakatetepa inopenya-kusvika-bhuruu shanduko firimu inosimbisa zinc uye inopa hunhu hwakajeka hwebhuruu-chena kutaridzika.
Hydrogen de-embrittlement bake: Mabhaudhi eGiredhi 10.9 anobikwa pa190–220 °C kwemaawa 4-8 mukati memaawa mana ekuputira (ISO 9588) kuti adzinge haidhirojeni inoputika uye kudzivirira kunonoka kuputsika.

Zvidimbu zvehunyanzvi

Parameter	Tsanangudzo	Standard	Mashoko
Coating Type	Zinc electroplate + bhuruu-chena passivation	ISO 2081 / ASTM B633	Trivalent Cr(III)
Ukobvu	8–12 µm (Fe/Zn 8c)	ISO 2081	Inochengetedza tambo yakakodzera
Munyu wokupfapfaidza (NSS)	≥ 96 h chena ngura, ≥ 240 h tsvuku tsvuku	ISO 9227	Rudzi II, SC 1
Chitarisiko	Uniform yebhuruu-inopenya neiridescence	ISO 2081	Kushongedza + kushanda
Hydrogen De-embrittlement	Bika pa190-220 °C kwe4-8h mukati me4h yekuputira.	ISO 9588	Inosungirwa yeGrade 10.9
RoHS / REACH	Zvinoenderana (Cr-VI yemahara trivalent passivation)	2011/65/EU	Yakachengeteka munzvimbo
Friction Coefficient	µ = 0.12–0.20 (yakapfatwa)	ISO 16047	Yakavimbika preload control

Munyu wekupfapfaidza kuramba pane ISO 9227 kusarerekera munyu kupfapfaidza (NSS). Ngura yakachena = zinc corrosion products; ngura tsvuku = simbi substrate ngura. Hydrogen de-embrittlement inosungirwa kune zvinosunga nekuoma ≥ 320 HV pa ISO 4042.

Zvakanakira Grade 10.9 Applications

Visual quality vimbiso: Iyo yakajeka, yunifomu yebhuruu-chena kupera inoita kukanganisa kwepamusoro (kukwenya, nzvimbo dzisina kuvharwa, kusvibiswa) pakarepo kuoneka panguva yekuongorora.
Thread kuenderana: Pa8-12 µm, iyo yakapfava yakatetepa zvakakwana kuchengetedza yakajairwa tambo kushivirira (6g/6h) pasina kudzvanyazve - yakakosha kune yakakwirira-simba mabhoti majoini.
Controlled friction: Iyo as-plated pamusoro inopa inowirirana friction coefficient (µ ≈ 0.12-0.20), inotsigira yakavimbika torque-based preload kuverenga.
Zvinodhura: Zinc electroplating ndiyo inonyanya hupfumi yekudzivirira corrosion nzira yezvisungo, ine mutengo wakaderera wekugadzirisa pane Dacromet kana inopisa-dip galvanising.
Kutevedza kwezvakatipoteredza: Trivalent (Cr-III) passivation inosangana neRoHS uye REACH zvinodiwa; kusiyana neakare hexavalent chromium (Cr-VI) maitiro, haiburitse njodzi yehutano hwemamiriro ekunze kana pabasa.

Kuganhurirwa & Maitiro Akanakisisa

Blue-white zinc plating inoitirwa mukati uye semi-yakachengetedzwa kunze nharaunda (corrosivity zvikamu C1-C2 pa ISO 12944). Nekuratidzwa kwekunze kwekunze, nzvimbo dzemahombekombe (C3+), kana zvikumbiro zvinoda ≥ 480 h munyu wekupfapfaidza kuramba, funga nezveDacromet kana inopisa-dip galvanising. Gara uchitsanangura hydrogen de-embrittlement bake pamaodha ekutenga eGrade 10.9 zinc-plated fasteners.

Nezve Fujirui Metal — Professional Fastener Manufacturer & Exporter

Fujirui Metal inogadzira uye inotumira kunze mabhaudhi chaiwo anosanganisira Giredhi 8.8 / 10.9 / 12.9 hex mabhaudhi, DIN 933 yakazara-tambo mabhaudhi, DIN 931 partial-shinda mabhaudhi, stud mabhaudhi, uye tsika fasteners. Sarudzo dzekurapa dzepamusoro dzinosanganisira yebhuruu-chena zinc, yero zingi, Dacromet, Ruspert, hot-dip galvanising, uye mechanical zinc plating. Zvese zvigadzirwa zvinogadzirwa kune ISO, DIN, uye ASTM zviyero zvine yakazara zvinhu bvunzo zvitupa (MTC) zviripo.

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