Peb qhov hnyav hex bolts xa cov txiaj ntsig tshwj xeeb rau siab -load structural bolting: ib lub taub hau loj hex uas kis tau clamp load hla lub ntsej muag dav dua, ua raws li ASTM A325 / A490 / F3125 structural bolt system, thiab tag nrho - teeb tsa ntawm kev sib tw A 325 / A490 / F3125, thiab tag nrho - teeb pom kev sib txuam H 3 A 6 nuts 3. cov ntxhua khaub ncaws. Txhawm rau kom kev yuav khoom yooj yim, peb rov qab txhua qhov kev txiav txim nrog cov qauv dawb qauv, qib engineers - kev xaiv & kev txhawb nqa kev txhawb nqa, OEM / kev cai kos duab, cov ntaub ntawv xeem cov ntaub ntawv nrog thib peb - tog tshuaj xyuas, MOQ hloov tau thiab thoob ntiaj teb shipping.
Specification ntawm High Strength Heavy Hex Bolts
| Parameter | Kev xaiv / Tus nqi |
|---|---|
| Khoom | Lub zog loj hnyav hex ntsia liaj qhov rooj (loj hex taub hau ntsia liaj qhov rooj) |
| Cov qauv | ASTM F3125 (A325 / A490) · ASTM A193 B7 / B7M · DIN 6914 · ISO 4014 / 4017 |
| Qib | A325 · A490 · B7 · Qib 8.8 / 10.9 / 12.9 |
| Tensile zog | A325 120 ksi min · A490 150–173 ksi · 830–1220 MPa |
| Khoom siv | Carbon Steel / Alloy Steel (AISI 4140, 35CrMo, 40Cr); Stainless raws li kev thov |
| Qhov ntau thiab tsawg | 1/2 "- 2" (inch) · M16 - M48 (metric), kev cai muaj |
| Xov | UNC / UNF / Metric · xov tag nrho lossis ib nrab xov |
| Lub taub hau | Loj hex taub hau rau ASME B18.2.1 |
| Nto tiav | Dub Oxide / Zinc Plated / HDG / Dacromet / PTFE |
| Sib piv Hardware | A194 Qib 2H / A563 Qib DH hnyav hex ceev · F436 hardened washers |
| Kev Pabcuam Kub | -29℃rau +450℃(alloy steel B7) |
| Lub Sijhawm Lead | Standard 7-15 hnub · Kev Cai 15-25 hnub |
| Cov ntaub ntawv | ISO 9001 · MTR · Certificate of Origin · Inspection report |
Qhov Hnyav Hex Bolt Koj Yuav Tsum Xaiv?
Hex bolts poob rau hauv peb tsev neeg cov khoom. Ua raws li koj qhov kev sib koom ua ke thiab daim ntawv pov thawj uas yuav tsum tau ua rau txoj kab zoo kom koj tsis txhob xaj tus qauv tsis raug.
| Tsev neeg khoom | Txuj | Zoo tshaj rau | Ua ke nrog |
|---|---|---|---|
| Qauv (inch) | ASTM A325 / A490 / F3125 / ASTM A325 / A490 / F3125 / ASTM A325 / A490 / F3125 / ASTM A325 / A490 / F3125 / ASTM A325 / A490 / F3125 / ASTM A325 / A490 / F3125 / ASTM A325 / A490 / F3125 / ASTM A325 / A490 / F3125 / ASTM A325 / A490 / F3125 / ASTM A325 / A490 / F3125 / ASTM A325 / A490 / F3125 / F3125 / F3125 / ASTM A325 / A490 / F3125 / F3125 / F3125) thiab ASTM A325 | Steel qauv, txuas hniav, kis tau tus mob & cua yees, puag daim hlau | A563 DH los yog A194 2H txiv ntseej + F436 ntxhua khaub ncaws |
| Alloy, siab -temp/pressure | ASTM A193 B7 / B7M Kev Ntsuas | Petrochemical, pipeline, siab hlab ntsha, flanged pob qij txha (-29℃~ +450 degree) | A194 2H noob |
| Metric (Euro) | DIN 6914 / EN 14399 / ISO 4014 | Euro & metric steel qauv, siab - zog kev sib txhuam- tuav pob qij txha | DIN 6915 / EN 14399-4 txiv ntseej |
Tsis paub tias tsev neeg twg haum?Xa koj daim duab lossis kev pabcuam thiab peb cov engineerslees paub qhov tseeb qib thiab tus qauv ua ntej koj xaj.
Lub zog Qib & Mechanical Properties
Xaiv los ntawm kev thauj khoom thiab kev nyab xeeb. Peb tsim thiab sim txhua qhov hnyav hex ntsia liaj qhov rooj rau nws qhov ntsuas lub zog thiab sau nws ntawm cov ntaub ntawv xeem cov ntaub ntawv rau txhua qhov ntau.
| Qib | Tensile (min) | Tawm tswv yim (min) | Hom kev siv |
|---|---|---|---|
| ASTM A325 (Hom 1) | 120 ksi (830 MPa) | 92 ksi (635 MPa) | Cov qauv hlau, lub hom phiaj dav dav |
| ASTM A 490 Cov Lus Qhia Tshwj Xeeb | 150-173 ksi (1040 MPa) | 130 ksi (895 MPa) | Siab -cov qauv muaj zog, qaug zog loads |
| Qib 8.8 / 10.9 / 12.9 | 830/1040/1220 MPa | 660/940/1100 MPa | Metric mechanical & structural assemblies |
| ASTM A193 B7 | 125 hli (min) | 105 hli (min) | Kub kub / siab siab (Cr-Mo alloy) |
Cov txiv ntseej thiab cov tshuab ntxhua khaub ncaws yog qhov nyuaj- sib phim rau qib bolt rau kev ua haujlwm zoo sib xws. Kev pabcuam kub rau alloy steel B7 thaj tsam -29℃rau +450℃.
Standards & Heavy Hex Dimension Tables
Hnyav hex bolts txawv ntawm cov qauv hex bolts los ntawm lawv lub taub hau loj dua - lub ntsej muag dav dua uas faib cov clamping ntau dua yam tsis muaj kev sib tsoo.
Ntiv hnyav hex bolts - qhov loj me (ASME B18.2.1, nti)
| Loj | Xov | Dav hla cov tiaj tiaj | Lub taub hau qhov siab (kwv yees) |
|---|---|---|---|
| 5/8" | 11 UNC | 0.94 | 0.44 |
| 3/4" | 10 UNC | 1.13 | 0.50 |
| 7/8" | 9 UNC | 1.31 | 0.56 |
| 1" | 8 UNC | 1.50 | 0.63 |
| 1-1/8" | 8 UNC | 1.69 | 0.69 |
| 1-1/4" | 8 UNC | 1.88 | 0.75 |
| 1-1/2" | 6 UNC | 2.25 | 0.88 |
| 2" | 4.5 UAS | 3.00 | 1.13 |
Metric hnyav hex bolts (DIN 6914 / EN 14399, hla flats mm)
| Loj | Pitch (mm) | Dav hla flats s | Lub taub hau qhov siab approx. |
|---|---|---|---|
| M16 | 2.0 | 24 | 10 |
| M20 | 2.5 | 30 | 13 |
| M24 | 3.0 | 36 | 15 |
| M30 | 3.5 | 46 | 19 |
| M36 | 4.0 | 55 | 23 |
| M48 | 5.0 | 75 | 31 |
Nco tseg: qhov loj me ua raws li ASME B18.2.1 / DIN 6914 / EN 14399. Cov nqi tseeb yog rov- tau lees paub tawm tsam tus qauv tam sim no thiab koj daim duab ua ntej tsim khoom.
Nto Finish & Corrosion Protection
Peb siv txhua txheej ntawm peb cov kab tiav tswj thiab xyuas nws, yog li qhov ua tiav tiv thaiv koj lub neej kev pab cuam yam tsis hloov lub ntsia liaj qhov rooj qhov ntsuas clamp load. Xaiv qhov kev tiv thaiv uas haum rau koj ib puag ncig hauv qab no.
| Ua kom tiav | Txheej hom | Ntsev- tshuaj tsuag (kwv yees.) | Zoo tshaj rau |
|---|---|---|---|
| Dub oxide / dawb | Oxide zaj duab xis / roj | Tsawg | Sab hauv structural & qhov twg lubrication yog siv |
| Zinc plated | Electroplated zinc | 48–96 h | Sab hauv & ib puag ncig me me |
| Kub-dip galvanized (HDG) | Thick dipped zinc | Sab nrauv ntev - qeb kawm | Sab nraum zoov steel qauv, txuas hniav |
| Dacromet / zinc-flake | Zinc{0}}aluminium flake | 500–1000 h | ntug hiav txwv dej, siab - av noo, cua yees |
Qhia rau peb txog kev pabcuam ib puag ncig - peb cov engineers xaiv qhov kawg uas tiv thaiv lub ntsia liaj qhov rooj yam tsis hloov nws qhov ntsuas clamp load.
Kev siv ntawm Heavy Hex Bolts
| Daim ntawv thov | Qhov chaw sib koom ua ke | Pom zoo |
|---|---|---|
| Steel qauv | Kem-nqaj lub sijhawm sib koom ua ke, brace & splice phaj sib txuas, cov phaj hauv paus | A325 / A490, HDG |
| Choj | Girder splice txuas, bearing thiab bracing pob qij txha | A325 / A490 |
| Transmission & cua yees | Ntauwd flange pob qij txha, lub hauv paus anchorages, lattice ceg pob qij txha | A490 / 10.9, Dacromet |
| Lub tshuab hnyav | Cov cuab yeej siv hnyav hnyav, vibrating & qaug zog- cov khoom sib dhos | Qib 10.9 / 12.9 |
| Pipeline & siab | Flanged pob qij txha, valve & twj lub cev, siab hlab ntsha (siab kub) | B7, PEB |
| Infrastructure | Retrofit & field erection, crossover khoom steelwork | A325 / A490 |
Matching txiv ntseej & Hardened Washers
Ib qho kev sib txuas bolted tsis ua tiav yam tsis muaj cov txiv ntoo zoo thiab ntxhua khaub ncaws. Peb muab tag nrho fastening system kom hardness thiab load ntsuam xyuas nyob matched.
Hex txiv ntseej
ASTM A194 Qib 2H / 2HM- hardened alloy txiv ntseej rau A490 thiab B7.
ASTM A563 Qib DH- hardened carbon txiv ntoo rau A325.
DIN 6915 / EN 14399-4- metric structural txiv ntoo.
Hardened washers
ASTM F 436 2- flat, hardened washers uas tiv thaiv cov bearings nto thiab kis load nyob rau hauv lub txiv ntseej.
Muaj raws li kev thauj khoom -qhia cov tshuab ntxhua khaub ncaws (DTIs) rau kev txheeb xyuas ncaj qha nro.
Order bolt + txiv ntseej + ntxhua khaub ncaws ua ib txheej - ib feem naj npawb, ib daim ntawv tshuaj ntsuam xyuas, thiab ib qho kev sib raug zoo tiag tiag.
Installation & Preload rau cov qauv bolts
Cov qauv hnyav hex bolts yog tensioned rau ib qho preload, tsis yog nruj los ntawm kev xav.
Preload txoj kev
Tig- ntawm - txiv ntseej- tig lub txiv ntseej ib qho kev sib hloov ruaj ntawm snug.
Calibrated ciaj ntswj- torque ib calibrated nqi.
Load- qhia cov tshuab ntxhua khaub ncaws (DTIs)- qhov tsis pom kev pom tseeb tias lub bolt yog tensioned.
Zoo -cov ntaub ntawv xyaum
Tsis txhob rov siv duastructural bolts tom qab kawg tensioning.
Siv covsib piv txiv ntseej qibthiab hardened F436 washers.
Tshawb xyuas qhov loj lossis qhov khoob ua ntej tensioning ib qho tsim.
Cov txheej txheem tsim khoom & Kev lees paub zoo
Yuav ua li cas peb tsim hnyav hex bolts
| Kauj ruam | Txheej txheem |
|---|---|
| 1. Cov khoom siv hlau | Certified steel nrog traceable tshav kub tooj |
| 2. Txias taub hau / forging | Loj hex taub hau tsim, cov khoom lis dej ntws khaws cia |
| 3. Kev kho cua sov | Quench & temper rau uniform hardness thiab ntsuas lub zog |
| 4. Xov dov | Rolled threads rau qhov tseeb thiab muaj zog grain ntws |
| 5. Kev kho deg | Txheej siv raws li specification |
| 6. Kev tshuaj xyuas & kuaj | Tensile, hardness, pov thawj-load thiab seem checks ib tug ntau |
| 7. Ntim & shipping | xeb- tiv thaiv, ntim, xa nrog cov ntaub ntawv |
Kev ruaj ntseg zoo uas teb cov neeg yuav khoom txhawj xeeb
| Kev txhawj xeeb ntawm tus neeg yuav khoom | Peb qhov kev ruaj ntseg zoo |
|---|---|
| Puas yog qib tiag & traceable? | MTR nrog cov xov tooj cua sov & batch, traceable steel -rau -bolt |
| Puas yog qhov ntsuas lub zog tiag tiag? | Tensile, hardness thiab pov thawj-load checks per lot |
| Nws puas haum lub taub hau txheem? | Dimensional checks rau ASME B18.2.1 / DIN 6914 |
| Cov txheej puas tiv thaiv? | Txheej - tuab thiab ntsev - tshuaj ntsuam xyuas |
| Puas yog txhua pawg tib yam? | Ntau-cov lej taug qab thiab tshuaj xyuas cov ntaub ntawv |
| Yuav ua li cas yog muaj teeb meem? | Clear warranty teb; thib peb-kev soj ntsuam tog txais tos ua ntej xa khoom |
Kev cai & OEM Heavy Hex Bolts
Tsis yog- qhov loj me, cov qib tshwj xeeb alloy, kev cai lub taub hau lossis flange geometry, thiab koj cov cim / kos npe / nyiaj them poob haujlwm muaj. Xa ib daim duab thiab peb paub meej tias manufacturability thiab kam rau ua ua ntej koj cog lus.
| Kauj ruam | Yuav ua li cas |
|---|---|
| 1. Kev xav tau | Xa daim duab lossis cov ncauj lus kom ntxaws (qib, qhov loj me, cov khoom siv, txheej, cim) |
| 2. Kev tshuaj xyuas engineering | Paub meej manufacturability, dimensional kam rau ua, pom zoo qib / tiav |
| 3. Qauv | Cov qauv tsim thiab qhov loj me- kuaj xyuas kom pom zoo |
| 4. Kev tsim khoom | Batch ntau lawm nrog hauv - txheej txheem & kev tshuaj xyuas zaum kawg |
| 5. Kev xa khoom xa tuaj | Xa nrog MTR, CO thiab tshuaj xyuas daim ntawv qhia |
Ntim, Shipping & Lead Time
Txhua qhov kev txiav txim tau ntim, tiv thaiv thiab khaws cia kom nws tuaj txog traceable thiab npaj rau kev tshuaj xyuas. Peb lub sij hawm ua tus thawj coj thiab cov nqe lus logistics hauv qab no.
| Yam khoom | Paub meej |
|---|---|
| Ntim | hnab yas / cartons / ntoo pallets; xeb-cov roj tiv thaiv lossis VCI daim ntawv thov |
| Lub sij hawm ua qauv txheem | 7-15 hnub rau cov khoom loj |
| Kev cai coj lub sijhawm | 15-25 hnub (nrog rau cov qauv kev pom zoo) |
| MOQ | Yooj yim; kuaj dawb rau cov khoom txheem |
| Cov ntaub ntawv | Daim ntawv teev npe, MTR, CO, daim ntawv tshuaj ntsuam xyuas |
FAQ:
Dab tsi yog qhov txawv ntawm qhov hnyav hex ntsia liaj qhov rooj thiab tus qauv hex ntsia liaj qhov rooj?
Lub hex ntsia liaj qhov rooj hnyav muaj lub taub hau loj dua (ntev thoob plaws hauv cov tiaj tiaj, siab dua thiab tuab lub taub hau) uas nthuav dav clamping load hla thaj tsam loj dua - zoo tagnrho rau kev sib txuas ntawm cov qauv hauv qab siab.
Cov thaub qab A325 thiab A490 txhais li cas?
A325 (120 ksi) thiab A490 (150-173 ksi) yog ASTM cov qauv ntsia hlau qib npog los ntawm ASTM F3125. Peb muab ob hom 1 kab nrog kev kho cua sov sib tw thiab cov ntaub ntawv xeem kom koj lub zog tsim muaj tiag.
Kuv puas xav tau cov txiv ntseej tshwj xeeb thiab ntxhua khaub ncaws?
Yog lawm. Siv A563 Qib DH lossis A194 Qib 2H hnyav hex ceev thiab F436 hardened washers, hardness -nrog rau qib bolt. Peb muab ntsia liaj qhov rooj + txiv ntseej + lub tshuab ntxhua khaub ncaws ua ib qho tag nrho.
Uas tiav rau sab nraum zoov steel qauv?
Kub-dip galvanized (HDG) lossis, rau ntug hiav txwv / siab- av noo, Dacromet. Peb cov engineers phim qhov ua tiav rau koj qhov chaw pabcuam.
Koj puas muab cov ntaub ntawv xeem cov ntaub ntawv?
Yog lawm. MTR nrog cov xov tooj cua sov thiab batch muaj, thiab thib peb -kev tshuaj xyuas tog tau txais tos ua ntej xa khoom.
