S355JR hlauyog cov khoom siv dav siv carbon steel los ntawm Tebchaws Europe, feem ntau siv hauv kev tsim kho, tso tsheb hlau luam, tsev, txuas hniav, thiab tshuab. Vim nws cov khoom siv kho tshuab zoo heev thiab weldability, nws ua haujlwm raws li cov qauv siv rau cov haujlwm ua haujlwm.
Hauv lwm lub tebchaws, ntau qib sib npaug nrog cov tshuaj lom neeg zoo sib xws thiab cov khoom siv tshuab muaj nyob:
Q345B - Tuam Tshoj
A572 Gr 50 - USA
ST52-3 - Lub teb chaws Yelemees
SM490B - Nyiv
Cov sib npaug no feem ntau siv los hloov pauv hauv cov haujlwm thoob ntiaj teb uas yuav tsum tau ua raws li S355JR.
Tshuaj muaj pes tsawg leeg ntawm S355JR sib npaug qib
| Qib | C (t Tsawg dua lossis sib npaug li 16 hli) | Si | Mn | P | S | Nb | V | Ti | Cr | Ni | Cu | N | Mo |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Q345B | Tsawg dua los yog sib npaug li 0.20 | Tsawg dua los yog sib npaug li 0.50 | Tsawg dua lossis sib npaug li 1.70 | Tsawg dua lossis sib npaug li 0.035 | Tsawg dua lossis sib npaug li 0.035 | Tsawg dua los yog sib npaug li 0.07 | Tsawg dua los yog sib npaug li 0.15 | Tsawg dua los yog sib npaug li 0.20 | Tsawg dua lossis sib npaug li 0.30 | Tsawg dua los yog sib npaug li 0.50 | Tsawg dua lossis sib npaug li 0.30 | Tsawg dua lossis sib npaug li 0.012 | Tsawg dua lossis sib npaug li 0.10 |
| A572 gr 50 | Tsawg dua lossis sib npaug li 0.23 | Tsawg dua lossis sib npaug li 0.40 | Tsawg dua lossis sib npaug li 1.35 | Tsawg dua los yog sib npaug li 0.04 | Tsawg dua los yog sib npaug li 0.05 | - | - | - | - | - | - | - | - |
| S355 JR | Tsawg dua lossis sib npaug li 0.27 | Tsawg dua lossis sib npaug li 0.60 | Tsawg dua lossis sib npaug li 1.70 | Tsawg dua lossis sib npaug li 0.045 | Tsawg dua lossis sib npaug li 0.045 | - | - | - | - | - | Tsawg dua lossis sib npaug li 0.60 | Tsawg dua lossis sib npaug li 0.014 | - |
| TSI 52-3 | Tsawg dua lossis sib npaug li 0.22 | - | - | Tsawg dua los yog sib npaug li 0.50 | Tsawg dua los yog sib npaug li 0.50 | - | - | - | - | - | - | - | - |
| SWB 490B | Tsawg dua los yog sib npaug li 0.20 | Tsawg dua los yog sib npaug li 0.55 | Tsawg dua lossis sib npaug li 1.60 | Tsawg dua lossis sib npaug li 0.035 | Tsawg dua lossis sib npaug li 0.035 | - | - | - | - | - | - | - | - |
Lus Cim: Cov tshuaj muaj pes tsawg leeg yog tswj xyuas kom muaj zog, weldability, thiab toughness, ua rau lawv zoo sib xws rau S355JR.
Mechanical Properties ntawm S355JR Cov Qib sib npaug
| Qib | Yield Strength ReH (MPa) t Tsawg dua lossis sib npaug li 16 hli | Tensile Strength Rm (MPa) 3 Tsawg dua lossis sib npaug t Tsawg dua lossis sib npaug li 16 hli | Elongation A (%) 3 Tsawg dua lossis sib npaug t Tsawg dua lossis sib npaug li 40mm | Charpy V Test Temp (degree) | Impact Zog (J) |
|---|---|---|---|---|---|
| Q345B | 345 | 470–630 | 20 | 20 | 34 |
| A572 gr 50 | 345 | 450 | 18 | - | - |
| S355 JR | 355 | 470–630 | 22 | 20 | 27 |
| TSI 52-3 | 355 | 490–630 | 22 | 0 | 27 |
| SWB 490B | 295 | 490–610 | 18 | - | - |
Ob qho tshuaj lom neeg muaj pes tsawg leeg thiab cov khoom siv tshuab ntawm cov qib sib npaug no yog ze rau S355JR, kom ntseeg tau tias muaj kev sib raug zoo rau feem ntau cov qauv siv.
Daim ntawv thov thiab muaj nyob ntawm S355JR thiab nws cov qib sib npaug
1. Kev tsim kho:
S355JR thiab nws cov qib sib npaug yog siv dav hauv kev tsim kho vaj tse, kev lag luam, thiab kev tsim kho. Lawv yog cov zoo tagnrho rau cov qauv kab teeb, kab, thiab thauj khoom -cov kabmob, muab lub zog siab, zoo heev toughness, thiab txhim khu kev qha stability. Cov hlau no tso cai rau cov kws tsim qauv tsim cov qauv me me thiab sib zog dua yam tsis muaj kev cuam tshuam txog kev nyab xeeb, ua rau lawv zoo meej rau cov haujlwm niaj hnub architectural thiab civil engineering.
2. Muaj Machinery:
Cov high - steels muaj zog no kuj tseem ceeb hauv kev tsim cov tshuab ua haujlwm thiab cov cuab yeej hnyav. Lawv feem ntau yog siv rau thav duab, kev txhawb nqa, hauv paus, thiab cov khoom siv, qhov twg kev sib xyaw ua ke ntawm cov khoom muaj zog thiab kev ua haujlwm kom ntseeg tau tias kev ua tau zoo nyob rau hauv dynamic loads. Lawv zoo weldability thiab formability ua rau lawv yooj yim rau integrate rau hauv kev cai machinery tsim.
3. Infrastructure Projects:
S355JR thiab qib sib npaug ua lub luag haujlwm tseem ceeb hauv kev siv vaj tse, suav nrog cov txuas hniav, tso tsheb hlau luam, cov kav dej, cov platforms, thiab cov chaw tsim khoom lag luam.
Lawv lub siab load-cov kabmob muaj peev xwm thiab ntev- lub sij hawm durability ua rau lawv haum rau ob qho tib si saum toj no - hauv av thiab hauv av, thiab nyob rau hauv tej yaam num raug kev nyuaj siab ib puag ncig. Kev kho saum npoo kom zoo lossis galvanization tuaj yeem txuas ntxiv lawv lub neej kev pabcuam hauv cov xwm txheej hnyav.
4. Muaj thiab Pab Txhawb Cov Neeg Siv Khoom:
Cov hlau no yog cov khoom tseem ceeb ntawm Gnee Steel, thiab muaj nyob rau hauv ntau qhov ntev thiab tuab. Cov neeg siv khoom tuaj yeem thov:
Nqe thiab muaj: Cov kev xaiv yooj yim rau cov qauv thiab qhov ntau thiab tsawg.
Cov ncauj lus kom ntxaws thiab cov lus qhia tshwj xeeb: Ua kom tiav cov tshuaj muaj pes tsawg leeg, cov khoom siv kho tshuab, thiab daim ntawv pov thawj (EN 10204 3.1/3.2, ABS, BV, DNV-GL, CCS, TUV, LR, SGS).
Daim ntawv thov kev taw qhia thiab kev txhawb nqa: Gnee Steel muaj cov kws tshaj lij kev sib tham rau kev xaiv cov khoom siv, kev tsim qauv, vuam, txiav, thiab kev teeb tsa, kom ntseeg tau tias cov hlau siv tau zoo thiab nyab xeeb hauv koj cov haujlwm.
:
Nrog S355JR thiab nws cov qib sib npaug los ntawm Gnee Steel, engineers thiab builders tuaj yeem tso siab rau qhov zoo ib yam, kev ua haujlwm siab, thiab kev siv dav dav.
Txawm hais tias siv hauv kev tsim kho, tshuab, lossis kev tsim kho vaj tse, cov hlau no muab tus nqi- siv tau, ruaj khov, thiab kev txhim khu kev qha rau cov kev xav tau thoob ntiaj teb.
Q1: S355JR channel steel yog dab tsi?
A:
S355JR channel steel yog qis- alloy, kub- dov cov qauv hlau ua raws liTS EN 10025-2. Nws muaj ibYam tsawg kawg nkaus tawm lub zog ntawm 355 MPathiab yog dav siv nyob rau hauv kev tsim kho, machinery, thiab kev siv cov txheej txheem.
Q2: Dab tsi tus qauv S355JR channel steel ua raws?
A:
S355JR channel steel ua rawsTS EN 10025-2: 2004, uas txhais cov txheej txheem xa khoom rau cov uas tsis yog - alloy structural steels. Tus qauv ua kom ntseeg tau tias cov khoom siv kho tshuab, tshuaj lom neeg muaj pes tsawg leeg, thiab kev ua haujlwm zoo sib xws ntawm cov khoom sib txawv.
Q3: Dab tsi yog cov khoom siv kho tshuab ntawm S355JR channel steel?
A:
Yield zog:Ntau dua lossis sib npaug li 355 MPa
Tensile zog:470-630 MPa
Elongation:Ntau dua lossis sib npaug li 20% (nyob ntawm qhov loj me)
Cov khoom no muab qhov zoo sib npaug ntawm lub zog, ductility, thiab toughness rau cov qauv kev siv.
Q4: Puas yog S355JR channel steel xav tau kev sim cuam tshuam?
A:
Yog lawm. Raws li ib tugJR qib, S355JR yog qhov kev sim ntawm20℃(chaw kub). Qhov no ua kom muaj zog txaus rau cov ntawv thov kub ib txwm, tab sis nws tsis haum rau qhov qis - qhov kub thiab txias.
Q5: S355JR txawv ntawm S355J2 channel steel li cas?
A:
Qhov sib txawv tseem ceeb nyob rau hauv qis -kub kev ua haujlwm.
S355JR:Impact kuaj ntawm 20 degree, haum rau qhov kub thiab txias.
S355J2:Kev cuam tshuam los ntawm -20 degree, haum rau qhov chaw txias dua.
Lwm yam khoom siv xws li lub zog tawm los thiab lub zog tensile zoo ib yam.
Q6: Puas yog S355JR channel steel weldable?
A:
Yog lawm. S355JR muaj weldability zoo heev vim nws cov ntsiab lus carbon tsawg. Standard arc vuam thiab roj welding yog tsim nyog. Preheating feem ntau yogtsis xav taurau cov seem nyias, tab sis yuav siv tau rau cov seem tuab kom txo tau cov seem seem.
Q7: Dab tsi yog cov ntawv thov ntawm S355JR channel steel?
A:
Cov qauv tsim rau cov tsev thiab cov txuas hniav
Txhawb nqa kab thiab kab
Machinery puag thiab chassis
General fabrication qhov twg muaj zog txaus txaus
Q8: Dab tsi loj npaum li cas muaj rau S355JR channel steel?
A:
S355JR channels feem ntau muaj nyob rau hauvqhov siab ntawm 80 mm mus rau 300 mmthiabthicknesses los ntawm 5 mm mus rau 20 mm, nyob ntawm qhov chaw tsim khoom. Kev cai ntev thiab txiav cov kev pabcuam feem ntau tuaj yeem muab rau ntawm kev thov.
Q9: S355JR channel steel puas tuaj yeem txiav lossis tshuab?
A:
Yog lawm. Nws tuaj yeem yognplaim taws txiav, sawed, drilled, los yog milledsiv cov cuab yeej txheem thiab cov txheej txheem. Nws cov hardness nruab nrab tso cai rau kev ua haujlwm yooj yim yam tsis muaj cov cuab yeej tshwj xeeb.
Q10: Kev tshuaj xyuas thiab ntawv pov thawj dab tsi tau muab nrog S355JR channel steel?
A:
Cov khoom feem ntau yog muab nrogEN 10204 3.1 lossis 3.2 mill daim ntawv pov thawj, npog cov tshuaj muaj pes tsawg leeg, cov khoom siv kho tshuab, thiab kev txheeb xyuas qhov ntev. Kev kuaj ntxiv, xws li kev soj ntsuam ultrasonic lossis sib nqus particle, tuaj yeem muab rau cov ntawv thov tseem ceeb.