Txheej txheem cej luam
TSI 52yog qib siab -lub zog, qis- alloy (HSLA) qib steel qauv, dav siv hauv Europe thiab thoob ntiaj teb. Lub "ST" sawv cev rau "Structural Steel," thiab "52" qhia aYam tsawg kawg nkaus tawm lub zog ntawm 355 MPa(los yog 36 kgf / mm²). Cov yeeb nkab ua los ntawm cov khoom siv no paub txog lawv lub zog zoo heev, zoo weldability, thiab formability, ua rau lawv yog ib qho kev xaiv nrov rau hnyav- lub luag haujlwm ntawm cov qauv thiab kev siv tshuab.
Cov yam ntxwv tseem ceeb & Cov Khoom Siv Tshuaj
ST52 tsis yog cov pa roj carbon ntshiab; nws yog micro- alloyed steel uas feem ntau suav nrog cov khoom me me xws li Manganese (Mn) thiab Silicon (Si) los txhim kho nws lub zog.
Cov tshuaj lom neeg muaj pes tsawg leeg (raws li DIN 17100 / Euronorm 10025):
| Element | Cov ntsiab lus (%) |
|---|---|
| Cov pa roj carbon (C) | Tsawg dua lossis sib npaug li 0.22% |
| Manganese (Mn) | Tsawg dua lossis sib npaug li 1.70% |
| Silicon (Si) | Tsawg dua lossis sib npaug li 0.55% |
| Phosphorus (P) | Tsawg dua lossis sib npaug li 0.050% |
| Sulfur (S) | Tsawg dua lossis sib npaug li 0.050% |
* Ceeb Toom: Qhov tseeb muaj pes tsawg leeg tuaj yeem sib txawv me ntsis ntawm cov chaw tsim khoom thiab cov qib tshwj xeeb -qib (xws li ST52-3).*
Mechanical Properties
Lub "52" hauv nws lub npe txhais nws cov cuab yeej tseem ceeb.
| Khoom | Tus nqi |
|---|---|
| Yam tsawg kawg Yield Strength (ReH) | 355 MPa rau(los yog 355 N / mm²) |
| Tensile zog (Rm) | 510 - 680 MPa |
| Elongation ntawm Break (A₅) | Ntau dua lossis sib npaug li 21% (nws txawv nrog tuab) |
| Impact Zog (KV) | Zoo (feem ntau ntau dua lossis sib npaug rau 27 J ntawm chav sov rau ST52-3) |
Standards thiab Qib sib npaug
ST52 feem ntau txhais los ntawm tus qauv qub GermanTIAB SA 17100. Cov qauv no tau dhau los ua ntau dhau los ntawm European tus qauvTS EN 10025-2, qhov twg qib sib npaugS355 JR.
| Thaj tsam | Txuj | Qib sib npaug |
|---|---|---|
| Europe (Kub) | TIAB SA 17100 | TSI 52-3(Feem ntau variant) |
| Teb chaws Europe (Tam sim no) | TS EN 10025-2 | S355 JR |
| USA / ASTM | ASTM A572 Cov Lus Qhia Tshwj Xeeb | Qib 50(Yield zog 50 ksi=345 MPa) |
| Nyiv | JIS G3106 | SM490 YA |
| Tuam Tshoj | GB/T 1591 | Q355B |
Lus Cim Tseem Ceeb:Thaum cov qhab nia no feem ntau suav hais tias sib npaug, tuaj yeem muaj qhov sib txawv me me ntawm cov tshuaj muaj pes tsawg leeg, kev ntsuas qhov ntsuas kub, lossis cov ntawv pov thawj. Nco ntsoov xyuas qhov tseeb specification rau koj qhov project.
Feem ntau siv ntawm ST52 Steel Pipes
Vim nws lub zog siab -rau- qhov hnyav piv, ST52 cov kav dej tau siv rau hauv cov ntawv thov uas muaj kev ncaj ncees yog qhov tseem ceeb:
Cov Qauv Txheej Txheem:Lub tsev thav duab, warehouses, industrial plants, thiab txuas hniav.
Heavy Machinery:Raws li cov khoom siv hauv cranes, excavators, bulldozers, thiab cov khoom siv mining.
Khoom siv:Rau cov khoom siv conveyor, nqa cov khoom siv, thiab cov khoom txhawb nqa.
Automotive thiab Tsheb thauj mus los:Chassis Cheebtsam rau cov tsheb thauj khoom hnyav, tsheb thauj khoom, thiab tsheb npav.
General Fabrication:Rau thav duab, kev txhawb nqa, thiab txhua yam qauv xav tau lub zog siab thiab ua haujlwm ntev.
ST52 vs. Common Steel Qib: Kev sib piv ceev
ST52 vs ST37 / S235JR
ST37/S235JRmuaj lub zog qis zog ntawm 235 MPa. Nws yog ib qho hlau me me.
ST52/S355JRyog qhov muaj zog ntau dua (tshaj li 50% muaj zog hauv cov khoom muaj zog).
Siv Case:Xaiv ST37 rau qhov dav dav, tsis yog -tseem ceeb fabrication. Xaiv ST52 rau kev thauj khoom-cov kabmob thiab cov tshuab hnyav.
ST52 vs ASTM A36
A36yog cov pa roj carbon ntau ntau hauv Teb Chaws Asmeskas, nrog lub zog tawm ntawm 250 MPa (36 ksi).
ST52/S355JRmuaj lub zog tawm los ntau dua (355 MPa).
Siv Case:ST52 tso cai rau sib dua, muaj zog tsim piv rau A36.
ST52 vs ASTM A500 (Structural Tubing)
ASTM A500 1yog tus qauv tshwj xeeb rau cov qauv tubing (hollow structural seem - HSS). Qib B muaj lub zog tawm ntawm 46 ksi (317 MPa) thiab Qib C yog 50 ksi (345 MPa).
TSI 52yog cov khoom siv qib uas tuaj yeem tsim rau hauv cov yeeb nkab thiab tubing ua tau raws li ntau yam qauv.
Siv Case:ST52 yeeb nkab uas tsim los rau tus qauv zoo li EN 10219 (rau txias- cov raj tsim) yuav ncaj qha piv rau A500 Qib C.
Qhov zoo thiab qhov tsis zoo
Qhov zoo:
Siab zog:Zoo heev load-cov kabmob muaj peev xwm.
Zoo Weldability:Yuav tau yooj yim welded siv txhua txoj hauv kev, txawm tias ua ntej - cua sov yuav tsim nyog rau cov ntu tuab.
Zoo machinability:Kuaj yooj yim rau kev txiav, laum, thiab duab.
Tus nqi -zoo:Muab lub zog siab ntawm tus nqi tsim nyog.
Qhov tsis zoo:
Tsawg Corrosion Resistance:Zoo li txhua cov pa roj carbon steel, nws yuav xeb yog tias tsis tiv thaiv xim, galvanization, lossis lwm yam txheej txheej.
Tsis yog rau High-Tsev Kev Pabcuam:Poob lub zog ntawm qhov kub siab; tsis haum rau cov hlab ntsha siab lossis cov boilers ntawm qhov kub siab (siv qib zoo li P265GH lossis P355GH hloov).
Cov ntsiab lus
Qib ST52 Carbon Steel Yeeb Nkabyog ntau yam, siab -lub zog steel raj zoo tagnrho rau ntau yam kev thov hauv kev tsim kho thiab tshuab. Thaum muab khoom, nws yog ib qho tseem ceeb los qhia qhov sib npaug niaj hnubS355 JRraws liTS EN 10025-2thiab cov txheej txheem tsim cov yeeb nkab uas cuam tshuam (xws li EN 10219, EN 10210) kom ntseeg tau tias koj tau txais cov khoom siv raug thiab cov ntawv pov thawj rau koj qhov project.
