Raws li nws cov tshuaj muaj pes tsawg leeg,S355JR Channel Baryog cais raws li qhov qis- alloy structural steel seem. Nws tag nrho cov ntsiab lus alloying yog siab dua li cov pa roj carbon steel, tseem qis dua qhov siab -alloy steels, muab qhov zoo sib npaug ntawm lub zog, weldability, thiab nqi efficiency.
Qhov sib npaug alloy tsim no ua rau S355JR channel steel tshwj xeeb tshaj yog haum rau kev thauj khoom -cov ntaub ntawv siv cov qauv uas xav tau ob qho tib si lub zog thiab txhim khu kev qha fabrication.
Chemical Composition (Qhov tseem ceeb tshaj plaws)
| Qib | C (%) | Si (%) | Mn (%) | P (%) | S (%) | N (%) | Cu (%) |
|---|---|---|---|---|---|---|---|
| S355JR Channel Bar | 0.27 | 0.60 | 1.70 | 0.045 | 0.045 | 0.014 | 0.60 |
Cov ntsiab lus siab tshaj plaws ntawm Alloying Elements
Carbon (C) Tsawg dua lossis sib npaug li 0.27%
Ua kom lub zog siab thaum tuav cov weldability zoo rau cov tshooj channel.
Manganese (Mn) Tsawg dua lossis sib npaug li 1.70%
Txhim kho lub zog tensile, toughness, thiab load- bearing peev xwm ntawm channel bar.
Phosphorus (P) Tsawg dua lossis sib npaug rau 0.045%
Kev tswj nruj nruj kom khaws ductility thiab cuam tshuam kev ua haujlwm.
Sulfur (S) Tsawg dua lossis sib npaug li 0.045%
Khaws nyob rau theem qis kom txo qis brittleness thiab xyuas kom ruaj khov vuam zoo.
Nitrogen (N) Tsawg dua lossis sib npaug rau 0.014%
Tswj kom muaj zog thiab tiv thaiv kev laus.
Silicon (Si) Tsawg dua lossis sib npaug li 0.60%
Ua raws li deoxidizer thiab pab txhawb kev txhim kho lub zog.
Copper (Cu) Tsawg dua lossis sib npaug li 0.60%
Txhim khu atmospheric corrosion kuj, tshwj xeeb tshaj yog rau sab nraum zoov channel bar daim ntaub ntawv.
Kev cuam tshuam ntawm Chemical Composition
Qhov zoo tshaj plaws tshuaj muaj pes tsawg leeg ntawm S355JR Channel Bar muab siab yield zog, zoo heev toughness, thiab txhim khu kev qha fabrication kev ua tau zoo. Cov yam ntxwv no tso cai rau lub channel bar tiv taus hnyav static thiab dynamic loads thaum tswj qhov seem stability.
Raws li qhov tshwm sim, S355JR channel steel yog dav siv hauv cov qauv thiab hnyav- lub luag haujlwm, suav nrog:
- Lub tsev thiab choj structural thav duab
- Txhawb cov qauv tsim thiab cov khoom siv mining
- Crane booms, nqa thav duab, thiab thauj khoom-cov kabmob txhawb nqa
- Industrial platforms thiab machinery puag
- Kev thauj mus los thiab cov txheej txheem kev tsim kho vaj tse
Kev sib xyaw ua ke ntawm lub zog siab, ua haujlwm ntev, thiab kev tsim ntau yam ua rau S355JR Channel Bar yog qhov kev xaiv zoo tshaj plaws rau kev siv cov txheej txheem niaj hnub.
S355JR txhais li cas?
S355JR yog qib qis - carbon steel feem ntau siv rau hauv cov ntawv thov. Nws yog ib feem ntawm 'S' tsev neeg hlau, uas suav nrog qib S235, S275, thiab S355. Qhov kev xaiv "JR" txhais tau hais tias cov khoom tau raug rau Charpy V- qhov ntsuas qhov cuam tshuam ntawm 208℃thiab muaj qhov cuam tshuam tsawg kawg ntawm 27 Joules.
Dab tsi yog qhov sib npaug rau S355JR steel?
S355JR cov qib sib npaug muaj cov tshuaj lom neeg zoo heev thiab cov khoom siv kho tshuab rau cov hlau S355JR. Ob lub S355JR sib npaug qib Q345B, A572 Gr 50, ST52-3, SM490B thiab S355JR steel yog cov khoom tseem ceeb ntawm Gnee steel.
Qhov txawv ntawm S355J2 thiab S355JR yog dab tsi?
S355J2/K2+N yog tib yam hlau li S355JR tab sis nws tau muab rau hauv ib qho xwm txheej thiab tau txais kev xeem Charpy ntawm 40J (Joules) ntawm -20oC. Txhua cov hlau uas tau muab los ntawm Charpy cuam tshuam los yog 'V' thaib ntsuas yuav muaj cov ntawv 'J2', 'K2', 'JR' lossis 'JO', uas qhia txog lawv cov khoom siv tawv.
S355JR sawv cev rau dab tsi?
S355 structural grade (S) nqa yam tsawg kawg nkaus yield zog ntawm 355 N / mm²m, JR lub npe lees paub tias cov hlau tau undergone longitudinal Chary V-Kev ntsuas qhov cuam tshuam ntawm 27J (Joules) ntawm chav tsev kub. Lwm cov npe Charpy suav nrog J0, J2 thiab K2.
S355 steel siv rau dab tsi?
S355 feem ntau yog siv nyob rau hauv qhov chaw xav tau tshaj plaws xws li kev lag luam offshore. S355, S355JR, S355J2, S355J2+N steel nyob rau hauv phaj, puag ncig bar, tiaj bar thiab blocks. S355 steel yog cov pa roj carbon tsawg uas nws cov kev qhia tshwj xeeb muaj lub zog muaj zog.