我公司提供的方矩鋼管分為直縫焊方矩鋼管和無縫方矩鋼管兩種,規(guī)格型號為:
方管:口徑F10*10——100*100—-300*300—-600*600mm,壁厚0.5mm-25mm長度:5m-12.5m
矩管:口徑J10*15——-150*50——300*400—600*550mm,壁厚0.5mm-25mm長度:5m-12.5m
可執(zhí)行標(biāo)準(zhǔn): GB/T6728-2002,GB/T6725-2002, GBT3094-2000,JG 178-2005, ASTM A500 JIS G3466,EN10210或技術(shù)協(xié)議
材質(zhì):Q195-Q235,Q345,20#,合金鋼,ST37-2,ST52-3,S235,S355etc
產(chǎn)品包裝:噴漆;涂油;打包。
應(yīng)用領(lǐng)域:廣泛應(yīng)用于機(jī)械制造、建筑業(yè)、冶金工業(yè)、農(nóng)用車輛、農(nóng)業(yè)大棚、汽車工業(yè)、鐵路、公路護(hù)欄、集裝箱骨架、家具、裝飾以及鋼結(jié)構(gòu)領(lǐng)域等。 www.xwfggc.com www.q345gg.com www.yxpipe.com
精密鋼管的交貨狀態(tài)
Designation Symbol Description
交貨狀態(tài) 代號 說明
Cold finished (hard) BK(+C) Tubes do not undergo heat treatment following the final cold forming and, thus, have a rather high resistance to deformation
冷加工(硬) 最后冷加工之后不進(jìn)行熱處理, 從而管子只可能進(jìn)行很小的變形。
Cold finished (Soft) BKW
(+LC) The final heat treatment is followed by cold drawing involving limited deformation. Appropriate further processing allows a certain degree of cold forming (e.g. bending, expanding)
冷加工(軟) 最后熱處理之后進(jìn)行小變形量的冷加工, 對鋼管再加工時(shí)允許有限的冷變形(例如: 彎曲, 擴(kuò)口)
Cold finished and stress-relieved BKS(+SR) Heat treatment is applied following the last cold forming process. Subject to appropriate processing conditions, the increase in the residual stresses involved enables both forming and machining to a certain degree.
冷加工后消除應(yīng)力退火 最后冷加工后在Acl點(diǎn)以下進(jìn)行退火, 以消除冷加工應(yīng)力。
Annealed GBK(+A) The last Cold forming process is followed by annealing in a controlled atmosphere.
退火 最后冷加工之后,鋼管在保護(hù)氣體下進(jìn)行完全退火。
Normalized NBK(+N) The last cold forming process is followed by annealing above the upper transformation point in a controlled atmosphere.
正火 最后冷加工之后,鋼管在保護(hù)氣體下進(jìn)行正火。 www.tjyggs.com www.bxgdy.com www.hryygt.com
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