Cubiculum quadratum Carbonum metallum usum est，Widely used in architecture、Machinery manufacturing、raeda、Furniture and other fields。Sequente introductum est totum tubis quadratis carbon：
unus、definition
Cubiculum quadratum Carbonum est typus materiae ex steelo structuro carbon，Phaepes quadratis steelis per frigidas aut calidas rursum procedentes。Intersectio eius quadrata est，quattuor latera longitudinis aequalis et perpendicularis，Estne bonas proprietates mechanicae et processentes。
duo、classification
Classificata per productionem：
Turbo quadratico calide curvato：Produced through hot rolling process，Suitabile pro magnis et densis tubis quadraticos。
Cubita quadrata frigida formata：Produced through cold bending process，Suitable for small sized and thin-walled square tubes。
Classified by Material：
Cubiculum quadratum Carbonum：secundumQ235、Q345classClass，Estne bonum benedictionem et processabilitatem。
High strength carbon steel square tube：secundumQ460classClass，Altissimum fortitudinem et fortitudinem habentem。
Classified by surface treatment：
Tum calidus galvanizatus tuba quadrata：Yüzey kalma dip galvanizing ile tedavi edildi.，Estne bona resistentia corrosionis。
Cubica galvanizata quadrata frigida：Surfaces treated with cold galvanizing，The zinc layer is relatively thin，Ama yüzey yumuşak.。
Spray painted square tube：Superficie pinguine fertilibus，Suitable for decorative purposes。
pipe nudus：Turba quadrata non creata，Suitable for internal structure or further processing。
tres、Proces productionis
hot-rolling process：
Caleface billetum steeli ad1100℃ - 1250℃，Make it reach a state of good plasticity。
Through multiple passes of rolling，Graduas formans formam tubae quadratis。
simplex et longitudo post refrigendum。
Processus fermenti frigidus：
Select suitable steel strips or plates as raw materials。
Through cold bending unit forming，Bend the raw material in a square cross-section。
Adopting high-frequency welding or submerged arc welding technology，Configurare qualitatem bonum。
Finally, perform straightening、Cut to length and surface treatment。
quattuor、Performationes characteres
property mechanical：
tensile strength：Fortitudo sterilis tubarum quadraticum carbon is ordinarum in circuitu370 - 500MPainter，Fortitudo magnae fortitudinis tubae quadraticorum carbonis quadraticum attingere potest500 - 600MPa。
yield strength：Fortitudo fertilis tubae quadraticum carbon is ordinaris est circum235 - 345MPa，Fortitudo superfortitudinis tubae quadraticum carbonis ferentis attingere potest345 - 460MPa。
Longitudo：Usually in16% - 22%inter，Bona capacitate deformatione plasticae habet。
processabilitate：
weldability：tuba quadrata Carbon steel habet bonam perfectionem ferentem，Suitable for multiple welding methods。
Cutting ability：Easy to cut and process，Suitable for various mechanical processing techniques。
Constellation name (optional)：Has good bending performance，Capable of meeting complex structural requirements。
Yüzey tedavisi：
paper size：Layer of zinc is formed on the surface，Estne bona resistentia corrosionis。
Galvanizing frigidus：The zinc layer is relatively thin，Ama yüzey yumuşak.，Suitable for decorative purposes。
pictura spray：You can choose different colors and coatings according to your needs，Enhance aesthetics。
quinque、area aplicationis
Construction field：
Structura Stellae aedificata：Used for beams、column、Framework and other structural components。
Architectural decoration：Used for railings、handrail、Componentes decoratives, sicut ostia et fenestra frama。
Machinery manufacturing：
Equipment framework：A framework used for manufacturing mechanical equipment、Bracket, etc。
Transmission componentes：Used for manufacturing transmission shafts、Gearbox et aliae componentes。
automobilis：
Structura corporis：Used for automotive chassis、Framema corporis et aliae componentes。
components and parts：Supporting components used for manufacturing automobiles、Connectors, etc。
Furniture manufacturing：
Tabula et sella：Used for manufacturing table legs、Framema Chair and other components。
Componentes decorative：Decorative strips used for manufacturing furniture、Bracket, etc。
power engineering：
Power tower：Main materials used for manufacturing power tower frames、Components such as crossbeams。
Power distribution equipment：Bracket used for manufacturing distribution equipment、Shell et aliae componentes。
sex、Purge precationes
select-criterion：
Select appropriate materials based on usage requirements。Cubiculum quadratum Carbonum（secundumQ235）Suitabile pro uso generale，High strength carbon steel square tube（secundumQ345）Sufficiens occasionibus cum excelsis opus portantibus。
precision dimensionala：
Check if the size of the square tube meets the standard requirements，Longitudo lateralis includens、parietem densitatem、Longitudo, etc.。
SURFACE QUALITY：
Check for cracks on the surface、scratch、Defects such as oxide skin。Laer zinc caloris tubae quadraticorum calvanizati uniforme debet esse，No missing plating phenomenon。
property mechanical：
Request suppliers to provide mechanical performance testing reports，Emine quod produktus standard requirements meet。
CategoryName：
Elegite bene notus markas aut reputable suppliers，Produktum qualitatem et post venditionem servum assecura。
septem、Standards and Quality Control
Produktionem et acceptionem tubarum quadraticum carbonium conformetur ad relevant normas nacionales。Common standards include：
GB/T 6728-2017《Tunica quadrata calefacta》：Dimensio tubarum quadraticorum rectarum indicata est、public errand、Requirements for mechanical properties, etc.。
GB/T 8162-2018《Seamless Square Tube》：Established technical requirements and inspection methods for seamless square tubes。
octo、summarize
tuba quadrangula carbonis propter optimum proprietatem mechanicam、Procedentes faciem et amplius aplicationis，Becoming an indispensable and important material in modern industry and construction fields。Understand its production process、Performationes characteres、Aplicationes et claves electionis，Helps ut melius elegeret et utilizat materiam。
