Peb cov ASTM A307 Carbon Steel Bolts yog cov workhorse fasteners uas cov neeg ua haujlwm tsim thiab infrastructure cia siab rau. Ua los ntawm Qib A carbon steel (ib ASTM A307), lawv muab 60,000 PSI tensile zog - uas yog 15% muaj zog dua li yooj yim khw muag khoom bolts. Peb txias-forge cov hex taub hau rau tighter grain qauv, proven nyob rau hauv thib peb-tog xeem kom muaj peev xwm tswj 30% ntau torque ua tib zoo rounding. Cov no yog koj cov bolts mus rau structural kev twb kev txuas nyob rau hauv uas tsis yog-corrosive ib puag ncig: choj scaffolding, kis towers, los yog hnyav khoom sib dhos. Piv nrog stainless lwm txoj kev, koj yuav tuaj yeem 50-65% ib daim ntawv thaum tau ASME B18.2.1-raws li kev ntseeg tau.
Tag nrho ASTM A307 Carbon Steel Bolts tau precision xov:
1.Cold-forged los ntawm nruam-cast billets (txo porosity piv rau seem hlau)
2.Thread-dov rau ASME B1.1 Chav Kawm 2A haum (lub sijhawm 2x ntev dua txiav threads hauv kev kuaj kev vibration)
3.Zinc-plated rau ASTM B633 Hom II (48-teev ntsev tsuag ntawv pov thawj)
4.100% magnetic particle inspected (nrhiav sub-surface flaws uas pheej yig suppliers nco). Peb chamfer thread ends - nres thaum installation thiab txo cov neeg ua haujlwm raug mob.
Khiav 16 automated lines with:
1.25 lab-thooj ib hlis muaj peev xwm (kho kev tsim kho vaj tse booms)
2.Real-time PMI checks (XRF phom txheeb xyuas cov ntsiab lus carbon ntawm qhov chaw)
3.Laser-etched grade markings (yuav tsis ploj li xim stamps)
Barcode-tracked batches los ntawm hlau coil mus rau crate
Xav tau volume nag hmo? Peb lub UK warehouse muaj 15M+ Qib A carbon steel bolts (1/4"-4" qhov ntau thiab tsawg) - tag nrho CE cim thiab npaj rau 48hr EU xa.
Rau cov neeg koom tes lag luam wholesale
1. Lub zog ntim: Kev txiav txim ntau dua 100,000pcs tau luv nqi 10% + daim ntawv pov thawj RoHS dawb
2. Kev cog lus raws sijhawm: 98% xa hauv 7 hnub ua haujlwm (ncua sijhawm? Peb them 50% kev thauj khoom los ntawm huab cua)
3. Kev lav lub zog: Shear qis dua 45,000 PSI? Hloov pauv tag nrho + $ 300 nyiaj them
4. Kev ua raws li kev cai: Cov ntaub ntawv CE/UKCA/REACH dawb - tshem tawm kev lis kev cai hauv <24 teev
ASTM A307 (Specification for Carbon Steel Externally Threaded Fasteners)
Carbon steel (low to medium carbon content; feem ntau C β€ 0.30%)
Hom A: Cov khoom siv dav dav rau lub teeb mus rau nruab nrab loads.
Hom B: Higher tensile strength variant rau daim ntawv thov uas xav tau ntau dua load-bearing capacity.
Hom C: Keeb Kwm siv rau cov txheej txheem anchoring (tam sim no superseded los ntawm F1554 Qib 36).
Mechanical Properties
Tensile Strength: Hom A: Min. 60 ksi (414 MPa); Hom B: 60-100 ksi (414-690 MPa).
Yield Strength: Tsis tau teev (nyob ntawm cov khoom siv ductility).
Elongation: Min. 18% (rau bolts β€ 1 nti inch).
Xov Standards
Unified National Coarse (UNC) threads rau ASME B1.1; muaj nyob rau lwm yam thread types raws li kev thov.
Txoj kab uas hla: 1/4 nti mus rau 4 nti (6.35 mm txog 101.6 mm).
Length: Feem ntau 10 mm to 800 mm (custom lengths have raws li application).
Plain (uncoated), zinc-plated (rau corrosion resistance hauv mild environments), lossis lwm yam coatings (xws li hot-dip galvanized) raws li xav tau.
Kev Siv
Kev Tsim Kho: Wood/light steel structural connections, concrete formwork, thiab general building fixtures.
Machinery: Assembly ntawm lub teeb khoom siv, twj tso kua mis, thiab non-critical mechanical components.
Piping: Joining non-high-pressure flanges thiab low-stress pipe systems.
Cov Yam Tseem Ceeb
Nqi-zoo: Economical vim low carbon steel composition.
Easy to machine: Good ductility thiab machinability rau threading thiab forming.
Versatility: Tsim rau non-high-stress, general-purpose fastening.
Frequently Asked Questions
Q: Koj puas muaj discounts rau bulk orders?
A: Yog, peb muaj tiered pricing rau bulk orders. Qhov loj dua qhov ntau, qhov kev sib tw tus nqi.
Q: Koj puas tuaj yeem qhia qee yam ntawm koj cov neeg siv khoom siv lossis case studies?
A: Yog, peb tuaj yeem qhia cov ntaub ntawv tshawb fawb ntawm cov neeg siv khoom hauv koj lub koom haum (xws li oil & gas, construction) thaum tiv thaiv lawv cov ntaub ntawv pov thawj tug.
Q: Koj txoj cai khoom xa rov qab yog li cas?
A: Yog tias cov khoom lag luam muaj teeb meem zoo uas sim los ntawm peb, peb yuav npaj hloov pauv lossis refunds hauv 30 hnub tom qab tau.
