A500 GRB square tubing yog ib hom qauv hlau nrog square cross -section. Nws feem ntau yog ua los ntawm cov pa roj carbon monoxide steel lossis qis- alloy structural steel, nrog lub zog tawm los feem ntau tsis tsawg dua 290 MPa thiab lub zog tensile ntawm 400 thiab 550 MPa, ua tau raws li qhov yuav tsum tau muaj ntawm feem ntau lub tsev thav duab thiab kev txhawb nqa tshuab. Hom square tubing no tuaj yeem tiv taus cov khoom loj hauv kev ntxhov siab thiab muaj qhov zoo weldability thiab txias bending kev ua tau zoo. Vim nws qhov txias txias - txheej txheem tsim, nws muaj qhov sib npaug ntawm qhov chaw thiab qhov siab qhov tseeb, ua rau nws tsim nyog rau cov ntawv thov uas xav tau siab precision hauv cov khoom.
| Khoom | Xav tau/tus nqi |
|---|---|
| Chemical Composition (wt%) | |
| Cov pa roj carbon (C) | Tsawg dua lossis sib npaug li 0.26% |
| Manganese (Mn) | Tsawg dua lossis sib npaug li 1.35% |
| Phosphorus (P) | Tsawg dua lossis sib npaug li 0.035% |
| Sulfur (S) | Tsawg dua lossis sib npaug li 0.035% |
| Copper (Cu) | Ntau tshaj lossis sib npaug rau 0.20% (thaum teev tseg) |
| Mechanical Properties | |
| Min. Yield zog | Ntau dua lossis sib npaug rau 350 MPa (50 ksi) |
| Min. Tensile zog | Ntau dua lossis sib npaug rau 450 MPa (65 ksi) |
| Elongation (50 hli ntsuas) | Ntau dua lossis sib npaug li 23% |
Kev tsim khoom
Cov txheej txheem tsim khoom ntawm A500 square tubing feem ntau suav nrog cov kauj ruam hauv qab no:
Ua ntej, steel strips yog tsim los ntawm kub dov los yog txias dov.
Tom qab ntawd, lawv txuas ntxiv khoov siv lub tshuab khoov txias los ua ib qho square cross-section.
Tom ntej no, cov pob qij txha tau ruaj khov welded siv high - zaus vuam los yog submerged arc vuam kom ntseeg tau tias kev ncaj ncees thiab kev sib khi ntawm lub raj.
Tom qab vuam, lub square tubing undergoes sizing thiab straightening txheej txheem los xyuas kom meej nws qhov ntev thiab ncaj raws li tus qauv yuav tsum tau.
Thaum kawg, kev kho saum npoo yog ua raws li qhov xav tau, xws li galvanizing lossis txau nrog cov tshuaj tiv thaiv{{0} xeb, txhawm rau txhim kho nws cov corrosion kuj.
A500 GRB Tube Hoobkas
