Q235 vs 55Q: Dab tsi yog qhov txawv ntawm S20 rail mechanical zog?
Apr 24, 2026
Q235 vs 55Q: Dab tsi yog qhov txawv ntawm S20 rail mechanical zog?
Mechanical Properties ntawm aDIN 5901 S20 railsib txawv heev nyob ntawm seb nws yog tsim los ntawmQ235Blos yog55Qhlau. Thaum lubS20 rail qhov ntevnyob zoo tib yam (100 hli qhov siab, 82 hli puag), metallurgical muaj pes tsawg leeg ntawm ob qib no dictates lawv cov kev ua tau zoo nyob rau hauv cov nqe lus ntawm tensile zog, hardness, thiab ductility.55Qyog ib tug tshwj xeeb rail steel tsim rau siab hnav tsis kam, whereasQ235Byog ib tug ntau yam structural steel prioritized rau nws weldability thiab cuam tshuam nqus.
- Tensile zog:55Q muaj ze li ob npaug ntawm lub zog ntawm Q235B, kom ntseeg tau tiasS20 rail profiletuaj yeem ua haujlwm ntau dua ntsug loads yam tsis ua haujlwm.
- Surface Hardness:Cov ntsiab lus carbon siab nyob rau hauv 55Q muab lub hardness xav tau los tiv thaiv 30 hliS20 rail taub hau davlos ntawm qhov khaus taw tes- siab ntawm crane log.
- Yield zog:55Q muaj cov ntsiab lus siab dua, txhais tau tias nws tuaj yeem txhawb nqa hnyav dua ua ntejS20 lub teeb steel railundergoes mus tas li deformation.
- Ductility & Weldability:Q235B ua tau zoo hauv cov cheeb tsam no, ua rau nws yooj yim dua rau vuam thiab zoo dua ntawm kev nqus cov kev cuam tshuam tam sim ntawd piv rau 55Q nkig ntau dua.
GNEE RAILsiv precision dov thiab kev kho cua sov siab heev los xyuas kom meej cov noS20 rail mechanical zogtsis tu ncua raws liDIN 5901 tus qauv. Rau cov crane khiav mus tas li, peb pom zoo rau qib 55Q kom ua kom siab tshaj RAIL S20 MATERIAL STRENGTH thiab txo cov nqi kho. Rau cov kev sib tw thib ob lossis cov haujlwm uas xav tau kev tsim khoom hauv tsev, Q235B muab kev daws teeb meem zoo thiab txhim khu kev qha. Los ntawm kev tswj hwm cov manganese thiab cov pa roj carbon ntau, peb xa S20 Steel Rail uas tswj hwm nws cov qauv kev ncaj ncees thoob plaws ntau txhiab lub sijhawm ua haujlwm.
Paub meej Mechanical Property Comparison
Txhawm rau xaiv cov qib raug rau koj qhov S20 lub teeb tsheb ciav hlau, nws yog qhov tseem ceeb los sib piv cov qauv kev qhia ntawm txhua yam khoom siv.
1. Tensile thiab yield zog
RAIL S20 MATERIAL SRENGTH ntawm 55Q yog tsim los daws cov teeb meem kev lag luam. Nrog lub zog tensile siab tshaj 710 MPa, nws muab cov txheej txheem pob txha tsim nyog rau siab - muaj peev xwm gantry cranes. Q235B, thaum muaj lub zog qis dua, muab kev nyab xeeb "hom tsis ua haujlwm" nyob rau hauv siab - kev vibration ib puag ncig vim nws yuav khoov dua li snap, txawm hais tias nws yuav tsis txhawb tib lub S20 rail load peev raws li 55Q.
2. Nto Hardness thiab hnav
Nyob rau hauv daim ntawv thov crane, lub taub hau 30 mm yog raug rau abrasive hnav. Cov ntsiab lus carbon ntau dua hauv 55Q steel tso cai rau Brinell hardness uas yog kwv yees li 40% siab dua Q235B. Qhov no yog ib qho tseem ceeb rau kev tswj xyuas S20 rail specifications dhau sij hawm; ib lub taub hau kev tsheb ciav hlau nyuaj tiv thaiv qhov "mushrooming" cuam tshuam qhov twg cov hlau ntws tawm sab nraud nyob rau hauv siab, uas yuav ua rau tsis zoo rau S20 rail profile.
| Q235B | Cov cuab yeej cuab tam | Tshuaj muaj pes tsawg leeg (%) | |||||||||
| Yield zog | Tensile zog | Elongation | Hardness | C | Si | Mn | S | P | |||
| MPa | kg/m² | MPa | kg/m² | min | HB | Tsawg dua los yog sib npaug | Tsawg dua los yog sib npaug | Tsawg dua los yog sib npaug | |||
| Ntau dua lossis sib npaug | Ntau dua lossis sib npaug | ||||||||||
| 235 | 24 | 375-460 | 38-47 | 26% | 0.12-0.22 | 0.35 | 0.30-0.70 | 0.045 | 0.045 | ||
| 55Q | Cov cuab yeej cuab tam | Tshuaj muaj pes tsawg leeg (%) | |||||||||
| Yield zog | Tensile zog | Elongation | Hardness | C | Si | Mn | S | P | |||
| MPa | kg/m² | MPa | kg/m² | min | HBW | Tsawg dua los yog sib npaug | Tsawg dua los yog sib npaug | ||||
| Ntau dua lossis sib npaug | Ntau dua lossis sib npaug | Ntau dua lossis sib npaug | Ntau dua lossis sib npaug | Ntau dua lossis sib npaug | |||||||
| 685 | 69 | 197 | 0.50-0.60 | 0.15-0.35 | 0.60-0.90 | 0.04 | 0.04 | ||||
Yuav Ua Li Cas Xaiv Cov Khoom Siv cuam tshuam S20 Rail Load Capacity?
S20 rail load peev tsis yog li ntawm 100 hli qhov siab; nws yog hais txog yuav ua li cas cov ntaub ntawv resists dabtsi yog khoov. Ib txoj kev tsheb ciav hlau ua los ntawm 55Q tuaj yeem cuam tshuam qhov sib txawv loj ntawm cov neeg pw tsaug zog vim tias nws lub zog muaj zog ntau dua tiv thaiv lub vev xaib 7 hli los ntawm buckling. Nyob rau hauv ib lub Hoobkas txheej txheem teeb nrog 600 mm sleeper spacing, 55Q S20 DIN rail tuaj yeem txhawb nqa qag loads txog 3.5 tons, whereas Q235B rail yuav raug txwv rau 2 tons kom tsis txhob deformation mus tas li.
- Siab -Carbon Steel (55Q):Muab siab dua hardness thiab hnav tsis kam, tso cai rau txoj kev tsheb ciav hlau los tswj cov khoom hnyav dua nyob rau lub neej ntev dua. Cov khoom no yog qhov zoo dua rau hnyav-cov haujlwm ua haujlwm ib puag ncig lossis cov ntawv thov uas xav tau lub zog tensile siab.
- Cov pa roj carbon steel (Q235B):Muab qhov zoo tshaj plaws weldability thiab txaus durability rau sib dua, dav dav -lub hom phiaj nyob rau hauv tsev muaj lem, ua raws li ib tug txhim khu kev qha, nqi- zoo.
- Alloy Steel (Manganese/Silicon Enhancements):Kev koom ua ke cov ntsiab lus xws li manganese lossis chromium rau hauv cov hlau alloy zoo txhim kho toughness thiab qaug zog tiv thaiv. Qhov no ua kom lub tsheb ciav hlau tsis tshua muaj kev tawg nyob rau hauv hnyav, dynamic loads.
- Qib Hardness:Cov txheej txheem hardening ncaj qha cuam tshuam rau kev thauj khoom tsis kam, nrog cov hardness siab dua (piv txwv li, 260-320 HB) muab kev ua haujlwm zoo dua.
FAQ
- Kuv puas tuaj yeem siv Q235B rau 5-tuj crane khiav?
Nws feem ntau tsis pom zoo. Rau 5-tuj crane, lub zog hauv zos ntawm 30 hli lub taub hau siab dhau rau Q235B. Koj yuav tsum siv 55Q kom ntseeg tau tias S20 rail profile tsis deform.
- Puas yog 55Q xeb sai dua Q235B?
Tsis yog. Ob leeg yog carbon steels uas zoo sib xws corrosion. Qhov txawv yog nyob rau hauv lawv cov neeg kho tshuab kev ua tau zoo, tsis yog lawv cov tshuaj tiv thaiv oxidation.
- Kuv yuav txheeb xyuas qhov S20 rail mechanical zog li cas?
Nco ntsoov xyuas Mill Test Certificate (MTC). Nws yuav teev lub zog tensile thiab hardness ntawm koj cov khoom kom ntseeg tau tias nws ua tau raws li tus qauv DIN 5901.
- Qib twg zoo dua rau qhov chaw txias mining?
Q235B muaj qhov elongation zoo dua thiab muaj kev cuam tshuam toughness, uas tuaj yeem muaj txiaj ntsig zoo hauv qhov txias txias qhov twg 55Q tuaj yeem ua rau nkig.
- Puas yog qhov sib txawv ntawm Q235B thiab 55Q S20 rails?
Tsis yog, S20 rail qhov ntev (100/82/30/7 mm) zoo tib yam. Qhov txawv yog purely internal thiab metallurgical.
GNEE RAILmuab cov khoom lag luam dav dav ntawm cov hlua hlau, los ntawm lub teeb- txoj haujlwm taug kev mus rau qhov chaw hnyav, ua kom muaj kev sib tw zoo meej rau txhua qhov kev xav tau ntawm kev lag luam. Peb muab cov kev pabcuam customization, suav nrog precision txiav thiab kev cai qhov drilling kom phim koj qhov tshwj xeeb S20 rail kos duab. Peb cov saw hlau muaj xws li tag nrho cov khoom tsim nyog sib dhos thiab S20 rail sib koom ua ke, thiab peb siv ntau xyoo dhau los ntawm kev xa khoom thoob ntiaj teb los xyuas kom meej tias koj qhov S20 steel rail hnyav xaj xaj raug xa mus ruaj ntseg thiab raws sijhawm rau txhua qhov project thoob ntiaj teb.
