Cov qauv hlau muaj ntau yam siv. Lawv muab kev sib xyaw ua ke ntawm cov khoom siv vuam zoo heev nrog lub zog siab. Offshore steels, hnav cov qib resistant, siab zog steels, boiler thiab siab hlab ntsha steels, thiab shipbuilding qib yog ib co ntawm cov hom ntawm daim ntawv thov -oriented structural steels uas muaj nyob rau hauv lub khw niaj hnub no. Cov hlau no yog qhov hloov tau yooj yim thiab tuaj yeem siv tau txawm tias nyob rau hauv cov xwm txheej uas yuav tsum tau ua kom lub zog loj tshaj plaws los yog cov qauv tsim nyog thaum qhov hnyav yog khaws cia tsawg kawg nkaus.
Steel S500 yog dab tsi?
S500 yog lub siab - lub zog steel qauv ua los ntawm cov hlau, nrog me me ntawm carbon, manganese, thiab silicon. Nws yog tsim los ua cov ntawv los yog daim hlau los ntawm kub dov. Nrog lub zog tawm los ntawm 500 MPa, nws muaj qhov zoo weldability, toughness, thiab hnav tsis kam, ua rau nws zoo tagnrho rau kev tsim kho, txuas hniav, thiab cov tshuab hnyav. Nws ua raws li EN 10025-6 S500 tus qauv. Nws cov kev hloov pauv, xws li S500Q, S500QL, thiab S500MC, yog tsim rau cov ntawv thov tshwj xeeb.
Cov yam ntxwv ntawm S500 Steel
S500 yog lub siab - lub zog steel qauv, muab cov khoom zoo heev - bearing thiab toughness vim nws optimized alloy muaj pes tsawg leeg thiab kev kho cua sov. Nws qhov hluav taws kub tsis kam tso cai rau nws khaws lub zog ntawm qhov kub thiab txias, ua rau nws txhim khu kev qha hauv kev xav tau. Zoo weldability tau los ntawm kev tswj cov ntsiab lus carbon, ua kom yooj yim fabrication. Nws yog dav siv hauv kev tsim kho, txuas hniav, thiab cov khoom siv hnyav. Rau kev tiv thaiv corrosion zoo dua lossis kev ua haujlwm zoo hauv qhov chaw txias, lwm yam zoo li S355, S460, lossis A572 raug pom zoo, txhua qhov haum rau cov qauv thiab ib puag ncig xav tau.
Tshuaj muaj pes tsawg leeg
| Element (Symbol thiab lub npe) | Qhov feem pua (%) |
|---|---|
| C (Carbon) | 0.10 - 0.20 |
| Manganese (Mn) | 1.0 - 1.5 |
| Si (Silicon) | 0.15 - 0.40 |
| P (phosphorus) | Tsawg dua lossis sib npaug li 0.025 |
| S (Sulfur) | Tsawg dua lossis sib npaug li 0.015 |
Lub ntsiab alloying tseem ceeb hauv S500 steel ua lub luag haujlwm tseem ceeb hauv kev txiav txim siab nws cov khoom. Carbon txhim kho lub zog thiab hardness, thaum manganese txhim kho toughness thiab hardenability. Silicon pab txhawb rau deoxidation thaum steelmaking thiab txhim khu lub zog. Cov qib qis ntawm phosphorus thiab sulfur pab tswj cov ductility thiab toughness.
Alternative Names, Standards, thiab Equivalents
| Standard Organization | Qib / Qib | Lub teb chaws / cheeb tsam ntawm Keeb Kwm | Lus Ceeb Toom/Remarks |
|---|---|---|---|
| EN | S500 MC | Teb chaws Europe | Ze tshaj sib npaug rau S500 |
| ASTM | A572 Qib 50 | Teb chaws USA | Zoo sib xws mechanical zog |
| JIS | SWB 490A | Nyiv | Cov kev sib txawv me me |
| DIN | S500Q | Lub teb chaws Yelemees | Ntau dua toughness |
FAQ:
Q: Koj puas yog lub Hoobkas lossis tuam txhab lag luam?
A: Peb yog cov chaw tsim khoom thiab muaj ntau xyoo kev tsim khoom thiab kev tswj xyuas.
Q: Cov nqe lus shipping yog dab tsi?
A: Peb lees txais FOB, CIF, CFR thiab lwm yam kev xa khoom thoob ntiaj teb. Chaw nres nkoj ntawm kev thauj khoom tuaj yeem teev raws li cov neeg siv khoom xav tau.
Q: Koj puas muaj kev pabcuam tom qab- muag?
A: Tau kawg, koj tuaj yeem tiv tauj peb txhua lub sijhawm.peb cog lus tias peb cov khoom tsim nyog. Yog tias koj pom cov khoom tsis tsim nyog thiab tsis txaus siab rau qhov koj xav tau, thov hu rau peb txhua lub sijhawm.
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