Q355GNH siab weathering steel phajyog lub siab -lub zog, atmospheric corrosion- resistant structural steel ua raws liGB / T qauv. Nws yog tsim tshwj xeeb rau ntev - lub sij hawm sab nraum zoov raug, muab zoo heev tiv thaiv atmospheric corrosion ua ke nrog txhim khu kev qha txhua yam muaj zog.
Q355GNH yog dav siv nyob rau hauv choj, railway engineering, steel qauv, thiab lwm yam infrastructure tej yaam num uas yuav tsum tau durability thiab tsis tshua muaj txij nkawm.
Q355GNH Steel yog dab tsi?
Lub npeqw 355gtuaj yeem txhais raws li hauv qab no:
- Q- Yield-lub zog- raws li cov qauv hlau
- 355- Yam tsawg kawg yield zog ntawm355 MPa rau
- G- Cov qauv hlau rau kev siv engineering (xws li txuas hniav)
- N- Muab nyob rau hauv normalized los yog TMCP mob
- H- Huab cua siab ( atmospheric corrosion-resistant) steel
Q355GNH belongs rau tsev neeg ntawmhigh weathering steels, muab kev tiv thaiv corrosion ntau dua li cov qib huab cua zoo tib yam.
Tshuaj muaj pes tsawg leeg ntawm Q355GNH (Tswj, wt.%)
Qhov zoo tshaj huab cua kev ua tau zoo ntawm Q355GNH los ntawm nws qhov kev tsim ua kom zoo tshaj plaws alloying.
| Element | Cov ntsiab lus |
|---|---|
| Cov pa roj carbon (C) | Tsawg dua lossis sib npaug li 0.16 |
| Silicon (Si) | Tsawg dua los yog sib npaug li 0.55 |
| Manganese (Mn) | Tsawg dua lossis sib npaug li 1.60 |
| Phosphorus (P) | Tsawg dua lossis sib npaug li 0.035 |
| Sulfur (S) | Tsawg dua lossis sib npaug li 0.030 |
| Copper (Cu) | 0.25 – 0.55 |
| Chromium (Cr) | 0.40 – 1.30 |
| Nickel (Ni) | Tsawg dua lossis sib npaug li 0.65 |
| Vanadium / Niobium (V / Nb) | Micro{0}} alloyed (yog tias xav tau) |
Ntsiab Lus:
Cov nyhuv ua ke ntawmCu, Cr, and Nipromotes the formation of a dense and stable oxide layer, significantly slowing corrosion in atmospheric environments.
Lub zog thiab cov cuab yeej cuab tam ntawm Q355GNH
Q355GNH muaj qhov sib npaug zoo ntawm lub zog, toughness, thiab ductility.
Cov cuab yeej cuab yeej cuab tam
| Khoom | Tus nqi |
|---|---|
| Yield zog | Ntau dua lossis sib npaug li 355 MPa |
| Tensile zog | 470-630 MPa |
| Elongation | Ntau dua lossis sib npaug li 20% |
| Impact Toughness | Tsim nyog (raws li qhov ntsuas kub ntsuas) |
Cov xwm txheej zoo li qub lossis TMCP cov khoom xa tuaj ua kom lub cev tsis sib xws thiab kev ua haujlwm ruaj khov, txawm tias loj - cov phaj tuab.
Atmospheric Corrosion Resistance
Piv nrog cov qauv hlau zoo tib yam, Q355GNH muab:
- 2-8 npaug siab dua atmospheric corrosion kuj
- Slower xeb nkag tus nqi
- Txo seem poob rau lub sijhawm ua haujlwm ntev
- Extended kev pab cuam lub neej nyob rau hauv nroog, industrial, thiab ntug dej hiav txwv ib puag ncig
Qhov no ua rau Q355GNH tshwj xeeb tshaj yog haum rauunpainted los yog maj mam coated steel qauv.
Fabrication Performance
Q355GNH siab weathering steel phaj qhia tau zoo ua cov yam ntxwv:
- Weldability zoo heev nrog kev sib piv huab cua steel consumables
- Haum rau cov nplaim taws, plasma, thiab laser txiav
- Zoo txias khoov thiab tsim kev ua tau zoo
Cov txheej txheem vuam kom zoo pab tswj kev tiv thaiv corrosion hauv cov pob qij txha.
Tej kev siv
Vim nws cov khoom siv tshuaj thiab lub zog, Q355GNH tau siv dav hauv:
- Choj qauv thiab girders
- Railway engineering thiab dov Tshuag
- Steel yees thiab kis tau tus mob
- Industrial sab nraum lub moj khaum
Loj - cov txheej txheem loj uas raug rau qhov chaw hnyav
Xaus
Q355GNH siab weathering steel phajcombines optimized tshuaj muaj pes tsawg leeg nrog txhim khu kev qha mechanical zog, muab zoo heev atmospheric corrosion kuj thiab ntev kev pab cuam lub neej. Nws qhov kev ua tau zoo tshaj plaws ua rau nws yog ib qho khoom siv zoo tshaj plaws rau kev thov kev siv sab nraum zoov.
Rau cov khoom ruaj khov, daim ntawv pov thawj tag nrho, thiab kev txhawb nqa kev tshaj lij ntawmQ355GNH huab cua steel phaj, GNEE Steelyog koj tus khub ntseeg.
Yog tias koj xav paub ntxiv txog GNEE cov khoom, koj tuaj yeem xa email rau alloy@gneesteelgroup.com. Peb zoo siab tshaj los pab koj.
Q: Qhov cuam tshuam toughness ntawm Q355NHB yog dab tsi?
A: Q355NHB muaj qhov cuam tshuam ntev ntawm lub zog ntau dua lossis sib npaug ntawm 47 J ntawm 20 degree, thiab xaiv tau qis dua - qhov ntsuas kub ntsuas tso cai rau nws siv hauv thaj chaw txias.
Q: Yuav ua li cas zoo yog corrosion kuj ntawm Q355NHB?
A: Q355NHB muaj qhov zoo heev atmospheric corrosion kuj, nrog rau corrosion tus nqi ntawm 0.02-0.04 hli / xyoo nyob rau hauv industrial atmospheric ib puag ncig.
Q: Puas yog qhov ua tau zoo ntawm Q355NHB hloov nrog phaj tuab?
A: Yog lawm, lub zog tawm los thiab elongation ntawm Q355NHB me ntsis txo qis thaum lub phaj thickness nce, thaum lub zog tensile tseem ruaj khov.
Q: Cov tshuaj dab tsi ua rau Q355NHB muaj huab cua tsis kam?
A: Cov huab cua tsis kam ntawm Q355NHB los ntawm corrosion-cov khoom tiv taus xws li Cu, Cr, thiab Ni ntxiv rau nws cov khoom xyaw.
Q: Lub xeev xa khoom ntawm Q355NHB yog dab tsi?
A: Feem ntau cov xeev ntawm Q355NHB suav nrog kub- dov, tswj dov, normalized, thiab customized xeev xws li quenched-tempered.
Q: Dab tsi thickness, dav, thiab ntev specifications ntawm Q355NHB muaj?
A: Q355NHB muaj cov tuab tuab ntawm 10mm txog 40mm, nrog ntau qhov dav thiab ntev kev xaiv, thiab tsis yog - qhov loj me tuaj yeem hloov kho.
