Square yeeb nkab yog lub npe rau cov yeeb nkab square thiab cov yeeb nkab, uas yog, cov yeeb nkab steel nrog qhov sib npaug thiab tsis sib npaug. Nws yog ua los ntawm dov strip steel tom qab kev kho mob. Feem ntau, cov sawb hlau yog unpacked, leveled, crimped thiab welded los ua ib tug puag ncig yeeb nkab, ces dov mus rau hauv ib lub square yeeb nkab, thiab ces txiav mus rau hauv qhov ntev yuav tsum tau.
Raws li cov txheej txheem ntau lawm, cov raj square tau muab faib ua kub dov seamless square raj, txias kos seamless square raj, extruded seamless square raj thiab welded square raj.
Lub welded square yeeb nkab yog muab faib ua
1. Raws li cov txheej txheem - arc vuam square raj, tsis kam vuam square tube (siab zaus thiab tsis tshua muaj zaus), roj vuam square raj thiab rauv vuam square raj
2. Raws li cov weld - ncaj welded square yeeb nkab thiab kauv welded square yeeb nkab.
Kev faib khoom
Cov raj square tau muab faib ua cov pa roj carbon zoo tib yam square raj thiab qis alloy square raj raws li cov khoom siv.
1. Cov pa roj carbon zoo tib yam tau muab faib ua Q195, Q215, Q235, SS400, 20# steel, 45# steel, thiab lwm yam.
2. Tsawg alloy steels tau muab faib ua Q345, 16Mn, Q390, St52-3, thiab lwm yam.
Kev faib khoom txheem
Cov raj square tau muab faib ua lub teb chaws tus qauv square tubes, Japanese standard square tubes, British standard square tubes, American standard square tubes, European standard square tubes thiab non-standard square tubes raws li cov qauv tsim.
Tshooj puab kev faib tawm
Cov kav dej square raug cais raws li cov duab seem:
1. Tej yam yooj yim seem square tube: square tube, rectangular square raj.
2. Square tube nrog txoj haujlwm seem: paj zoo li lub raj square, qhib lub raj square, corrugated square raj thiab tshwj xeeb-shaped square raj.
Kev kho deg kev faib tawm
Cov kav dej square tau muab faib ua cov kav dej kub-dip galvanized square kav, electro galvanized square kav, oiled square kav thiab pickled square kav raws li kev kho deg.
Siv kev faib tawm
Square tubes raug cais los ntawm lub hom phiaj: square tubes rau kho kom zoo nkauj, square tubes rau cov cuab yeej siv tshuab, square tubes rau kev lag luam kev lag luam, square tubes rau kev lag luam chemical, square tubes rau steel qauv, square tubes rau nkoj tsim, square raj rau tsheb, square raj rau steel beams thiab kab, thiab square tubes rau tshwj xeeb lub hom phiaj.
Phab ntsa thickness classification
Rectangular tubes raug cais raws li phab ntsa tuab: cov phab ntsa tuab tuab ntxiv, cov phab ntsa tuab tuab thiab cov phab ntsa nyias nyias.
GB / t6728-2002, GB / t6725-2002, gbt3094-2000, JG 178-2005, ASTM A500, JIS g3466, en10210 lossis kev pom zoo.
GB / t3094-2000 (tus qauv hauv tebchaws) txias nias tshwj xeeb zoo li tus duab plaub
GB / t6728-2002 (tus qauv hauv tebchaws) txias tsim hollow seem steel rau cov qauv
ASTM A500 (American Standard) carbon steel Cold-Formed Welded duab plaub thiab seamless lub raj nrog puag ncig thiab tshwj xeeb-zoo li tus qauv rau cov qauv
TS EN 10219-1-2006 (European standard) txias tsim welded hollow structural seem ntawm non alloy thiab nplua nplej
JIS g 3466 (Japanese standard) angular rectangular yeeb nkab rau kev tsim kho
Post lub sij hawm: Aug-25-2021