Mn-B Boron Steel
HOM: PROMISTEEL
Qib: 15B35H, 10B21, 20MnTiB, 50B, 15MnB
KHOOM: Hlau Qws (Coil), Round Bar, Flat Bar
KEV PAB CUAM: Kub Rolled, Spheroidize Annealed (SA)
Nto: Pickled & Phosphated, Dub
HARDNESS: Annealed Tsawg dua los yog sib npaug rau 180 HB (Zoo rau Txias Heading)
FEATURE: High Hardenability ntawm tus nqi qis
APPLICATION: Qib 8.8 / 10.9 Bolts, Track Shoes, Excavator Hniav
MOQ: 25 Tuj
Mn-B Series (Manganese-Boron)steel yog ib chav tshwj xeeb ntawm qis- alloy steel tsim los xa cov zog siab ntawm tus nqi sib tw. Los ntawm kev ntxiv ib feeb ntawmBoron (0.0005% - 0.003%), steel lub hardenability yog drastic txhim kho yam tsis tas yuav tsum tau rau kim alloying ntsiab xws li npib tsib xeelos yog molybdenum.
PebBoron hlau (15B35/ 10B21)yog tus qauv thoob ntiaj teb rau covKev lag luam Fastener. Muab nyob rau hauv spheroidized annealed hlau rods, nws muaj cov yas zoo heev rau lub taub hau txias, tseem tuaj yeem ua cua sov- kho kom ua tiavQib 8.8, 10.9, lossis txawm 12.9qib zog. Tsis tas li ntawd, cov qib carbon ntau dua (xws li50B) yog dav siv rauHnav Khaub Ncawsnyob rau hauv kev tsim kho machinery, xws li taug kev txuas thiab excavator thoob hniav.
Khoom Specifications & Qib sib npaug
Peb muab Boron Steel optimized rau lub taub hau txias (CHQ) thiab kev kho cua sov sib xws.
Table-1
Xaiv cov qib zoo rau koj chav kawm bolt lossis hnav ib feem.
Kev sib piv Qib International |
||||
| GB (Tuam Tshoj) | ASTM / SAE (USA) | DIN / EN (Lub teb chaws Yelemees) | JIS (Nyiv) |
Daim ntawv thov |
| 10B21 | TIAB SA 10B21 | - | - |
Qib 8.8 / 9.8 Bolts |
| 15 MnB | 15B21 | 1.5508 (17MnB3) | - |
Qib 10.9 Bolts |
| 15B35/ML35MnB | 15B35 | 1.5530 (35MnB5) | SWRCH35K (SIM.) |
Siab -Ntaus Ncej / Bolts |
| 20 MnTiB | - | - | - |
Heavy Steel Structure Bolts |
| 50B | 15B41H | 1.7176 (50MnB5) | SUP9 (SIM.) |
Khiav khau, Txiav ntug |
Table-2
Cov "Boron Effect" ua kom sib sib zog nqus hardening nrog lean alloy cov ntsiab lus.
Chemical Composition (Mass Fraction%) |
|||||
| Qib | C | Mn | IB (Boron) | Ti | Si |
| 10B21 | 0.18~0.23 | 0.80~1.10 | 0.0005~0.003 | 0.01~0.04 | Tsawg dua lossis sib npaug li 0.10 |
| 15B35H | 0.32~0.38 | 0.80~1.10 | 0.0005~0.003 | - | 0.15~0.35 |
| 20 MnTiB | 0.17~0.24 | 1.30~1.60 | 0.0005~0.0035 | 0.04~0.10 | 0.17~0.37 |
Table-3
Muab nyob rau hauv coil rau nruam txias headers los yog bar rau forging.
Khoom Muag Ntau & Hom |
|||
| Yam khoom | Qhov Loj (mm) | Kev Xa Khoom | Nto tiav |
| Hlau Rod (Coil) | Dia: 5.5 - 42.0 | Spheroidize Annealed (SA) |
Pickled & Phosphated |
| Round Bar | Dia: 16 - 150 | Kub Rolled / Annealed | Dub / Peeled |
| Pav ca Bar | Kev cai Profile | Kub Rolled | Dub |
Cov yam ntxwv tseem ceeb thiab qhov zoo
Txias Formability
Peb cov qib 10B21 thiab 15B35 tau muab nrog aSpheroidize Annealedqauv, kom ntseeg tau tias tsis muaj zog tawm los thiab siab ductility. Qhov no txo cov cuab yeej hnav thiab tawg thaum lub caij txias ntawm lub taub hau taub hau.
Tus nqi -Nyob zoo Hardenability
Boron hloov cov alloys kim dua (xws li Cr, Mo, Ni). Ib qho yooj yim Quench thiab Temper txheej txheem yields siab tensile lub zog sib npaug rau alloy steels.
Kev kho cua sov tsis tu ncua
Tightly tswj Boron thiab titanium cov ntsiab lus ua kom zoo ib yam hardness hla cov khoom loj.
Hnav Resistance
Siab carbon boron steels (xws li50B) muab kev tiv thaiv zoo heev tom qab hardening, zoo tagnrho rau cov cuab yeej siv hauv av (GET).
Tej kev siv
Mn-B Series Boron Steel powers lub rooj sib txoos thiab txav ntawm cov tshuab hnyav:
High Strength Fasteners:
- 10B21:Siv rau Qib 8.8 thiab 9.8 bolts, tus kheej -tapping screws.
- 15B35 / 20MnTiB:Siv rau Qib 10.9 hnyav hex bolts, structural bolts, thiab automotive engine bolts.
Automotive Cheebtsam:Steering qhov chaw, stabilization txuas, thiab siv lub rooj zaum mechanisms.
Siv Machinery (Undercarriage):
- Track Khau / Txuas:Ua los ntawm50 MnBlos yog25 MnBprofiles.
- Bucket hniav & Txiav ntug:Yuav tsum muaj siab hardness thiab cuam tshuam tsis kam.
Cov cuab yeej tes:Spanners, wrenches, thiab sockets.
FAQ
Q1: Vim li cas ho siv Boron Steel hloov 4140 rau bolts?
A1: Tus nqi & txheej txheem. Rau txoj kab uas hla hauv qab 30 hli, Boron steel (xws li 15B35) tuaj yeem ua tiav tib Qib 10.9 cov khoom raws li 4140 tab sis ntawm tus nqi qis dua. Nws kuj yog qhov yooj yim dua rau txias- daim ntawv (lub taub hau txias) dua li 4140, nce ntau lawm ceev.
Q2: Dab tsi yog "Spheroidize Annealing" (SA)?
A2: Nws yog kev kho cua sov uas softens cov hlau thiab tsim cov qauv globular carbide. Qhov no yog qhov tseem ceeb rau Cold Heading Quality (CHQ) hlau. Yog tsis muaj SA, cov hlau yuav nyuaj dhau thiab yuav tawg lub taub hau tuag thaum lub sijhawm tsim khoom.
Q3: 20MnTiB siv rau dab tsi?
A3: 20MnTiB yog qib Suav classic tshwj xeeb tsim rau Loj Hexagon Lub Taub Hau Siab -Lub zog Bolts siv hauv kev tsim steel qauv (bridges, skyscrapers). Nws muaj qhov zoo heev uas tsis tshua muaj - kub cuam tshuam toughness.
Q4: Puas yog Boron steel weldable?
A4: Cov qib carbon qis (xws li 10B21) muaj qhov zoo weldability. Txawm li cas los xij, cov qib carbon siab (xws li 50B) lossis cov cua sov- kho qhov chaw yog qhov nyuaj rau vuam yam tsis tawg thiab poob lawv cov khoom tempered.
Cim npe nrov: mn-b boron steel, Tuam Tshoj mn-b boron steel manufacturers, lwm tus neeg
Tug
Tsis muajKoj Tseem Yuav Zoo Li
Xa kev nug