Khoom Parameters
Q235 Q345 ERW Welded Steel Tubes
Khoom siv thiab Specification
Khoom siv: Q235, Q345
Txheej txheem: Electric Resistance Vuam (ERW)
Txuj: GB / T3091-2008, ASTM A53, BS1387, API 5L, API 5CT
Sab nraud txoj kab uas hla: 21.3mm-219mm
Thickness: 1.2mm-12mm
Ntev: 1-12m lossis customized
Kev kho deg: Oiled, dub pleev xim rau, galvanized
Ntsiab nta
Cov txheej txheem ntau lawm ntawm hluav taws xob tsis kam welded steel yeeb nkab yog yooj yim, qhov kev ua tau zoo yog siab, ntau yam thiab cov lus qhia dav dav thiab tus nqi qis, tab sis lub zog feem ntau qis dua li seamless steel yeeb nkab.
Tshuaj muaj pes tsawg leeg
| Element | Q235 (%) | Q345 (%) |
| C (Carbon) | Tsawg dua lossis sib npaug li 0.22 | Tsawg dua los yog sib npaug li 0.20 |
| Manganese (Mn) | 0.30-0.70 | 1.00-1.60 |
| Si (Silicon) | Tsawg dua los yog sib npaug li 0.35 | Tsawg dua los yog sib npaug li 0.55 |
| P (phosphorus) | Tsawg dua lossis sib npaug li 0.045 | Tsawg dua lossis sib npaug li 0.045 |
| S (Sulfur) | Tsawg dua lossis sib npaug li 0.045 | Tsawg dua lossis sib npaug li 0.045 |
Mechanical Properties
| Khoom | Q235 | Q345 |
| Yield zog | Ntau dua lossis sib npaug li 235 MPa | Ntau dua lossis sib npaug li 345 MPa |
| Tensile zog | 375-500 MPa | 470-630 MPa |
| Elongation | Ntau dua lossis sib npaug li 26% | Ntau dua lossis sib npaug li 21% |
| Hardness (HB) | Tsawg dua lossis sib npaug li 197 | Tsawg dua lossis sib npaug li 187 |
Lub cev muaj zog
| Khoom | Tus nqi |
| Qhov ntom | 7.85 g / cm³ |
| Melting Point | 1420-1460 degree |
| Thermal conductivity | 51.9 W / mK |
| Tshwj xeeb kub | 0.473 J / g degree |
| Hluav taws xob Resistivity | 0.15-0.18 x10^-6 Ω.m |
Txheej Txheem Kev Ua Haujlwm
ERW vuam kom ntseeg tau qhov zoo ntawm qhov tseeb thiab qhov chaw tiav.
Haum rau ntau yam kev ua haujlwm xws li puag ncig, square, duab plaub, thiab cov duab tshwj xeeb.
Yuav tau yooj yim galvanized rau corrosion kuj.
Qib Steel
Q235: Feem ntau siv rau cov khoom siv, xws li txuas hniav thiab cov tsev.
Q345: Tsim nyog rau cov qauv uas muaj cov khoom hnyav, xws li txuas hniav, txuas txuas, thiab tsheb.
Daim ntawv thov
Kev tsim kho: kev txhawb nqa, lub tsev thav duab, scaffolding
Tsheb thauj mus los: Pipeline systems, automotive qhov chaw
Machinery: Agricultural machinery, tshuab thav ntawv
Furniture: hlau rooj tog, cia racks
Lwm yam: Fencing, kos npe posts, tsev cog khoom vaj tse
Cov qhab nia xaiv tau
ASTM A500 Qib A, B, C
ASTM A513 Cov Lus Qhia Tshwj Xeeb
BS EN 10219 S235JR, S275JR, S355JR, S235JRH, S275J0H, S355J0H, S355J2H
API 5L Qib B, X42, X46, X52, X56, X60, X65, X70, X80
Kab lus no muab cov ntsiab lus ntawm Q235 Q345 ERW Welded Steel Tubes, suav nrog lawv cov khoom siv, kev qhia tshwj xeeb, cov yam ntxwv tseem ceeb, tshuaj lom neeg muaj pes tsawg leeg, cov khoom siv dag zog, lub cev, cov txheej txheem kev ua haujlwm, qib steel, daim ntawv thov, thiab lwm yam qib. Cov raj no tau siv dav hauv ntau qhov kev lag luam vim lawv cov khoom zoo thiab tus nqi -kev ua tau zoo.
Khoom Qhia
Cim npe nrov: q235 q345 erw welded steel hlab, Tuam Tshoj, lwm tus neeg, manufacturers, hoobkas, customized, lag luam wholesale, nqe, OEM, zeb, tsim, kev muag khoom
