BS1387 Kub Galvanized Steel Yeeb Nkab

BS1387 standardizes cov kev cai rau welded thiab seamless steel kav, qhia qhov ntev, mechanical zog, kuaj, thiab galvanization.

 

BS1387 Pipe yog dab tsi?

BS1387 yeeb nkab yog ib tug British txheem yeeb nkab, feem ntau yog siv rau welded dub kav screwed rau hauv BS21 yeeb nkab threads. Cov yeeb nkab no yog dav siv rau kev thauj mus los ntawm cov pa roj, huab cua thiab dej, pej xeem thiab lwm yam kev ua haujlwm. BS1387 ERW galvanized steel yeeb nkab yog ib qho ntawm lawv, nws qhov loj me yog DN8-DN150, nrog lub teeb, nruab nrab thiab tuab phab ntsa tuab. Cov yeeb nkab steel no yog kub-dip galvanized thiab muaj kev tiv thaiv corrosion zoo heev thiab hnav tsis kam, yog li nws tau siv dav hauv ntau qhov chaw.

 

BS1387 steel yeeb nkab yog cov yeeb nkab sib xyaw ua los ntawm cov yeeb nkab ncaj seam steel lossis seamless steel yeeb nkab raws li cov yeeb nkab hauv paus, uas yog sib xyaw nrog cov yas los ntawm cov txheej txheem rhuab. Sab nrauv ntawm cov yeeb nkab steel yog galvanized thiab sab hauv phab ntsa yog coated nrog cov yas txheej, ua rau nws corrosion-resistant thiab hnav-resistant.

 

Lub hauv paus ntsiab lus ntawm kub-dip galvanized steel yeeb nkab BS1387 yog siv galvanized steel yeeb nkab ua lub hauv paus yeeb nkab, thiab cov phab ntsa sab hauv yog coated nrog siab adhesion, tiv thaiv corrosion, zaub mov qib tu polyethylene hmoov txheej los yog epoxy resin txheej. Ua los ntawm pretreatment, preheating, puab txheej, leveling thiab tom qab kho cov txheej txheem, nws yog ib tug upgraded khoom ntawm tsoos galvanized kav. BS1387 zinc steel yeeb nkab yog muaj nyob rau hauv ntau qhov ntau thiab tsawg, qhov ntev thiab tuab, ua rau nws haum rau ntau yam kev siv sib txawv. Hom yeeb nkab no feem ntau siv rau hauv cov dej thiab roj, nrog rau lwm yam kev siv uas xav tau kev tiv thaiv corrosion, xws li scaffolding thiab fencing. Tsis tas li ntawd, nws kuj tau siv dav hauv kev tsim cov rooj tog zaum, nws pib qhov chaw, tshuab ua liaj ua teb thiab lwm yam khoom.

 

 

Tshuaj muaj pes tsawg leeg thiab txhua yam khoom ntawm chav tsev kub
Chemical composition (Ladle)				Mechanical zog ntawm chav tsev kub
C Max.	Mn Max.	P Max.	S Max.	Tensile zog, Rm	Yield zog, Re (min.)	Elongation ntawm Gauge Length L{0}}.65 S0 A (min.)
%	%	%	%	N / hli 2	N / hli 2	%
0.2	1.2	0.045	0.045	320-460 Nws	195	20

 

 

 

BS1387 kub-dip galvanized steel raj txheej txheem ntau lawm

Kev kho deg, xws li tshuaj ntxuav los yog xuab zeb, feem ntau ua los xyuas kom meej qhov chaw du thiab huv.

Cov yeeb nkab steel yog degreased kom tshem tawm cov roj saum npoo thiab ces tsau rau hauv lub tank pickling kom tshem tawm oxides thiab lwm yam av av.

Feem ntau muaj ob txoj kev: kub-dip galvanizing thiab electro-galvanizing.

Kub-dip galvanizing: Cov yeeb nkab steel yog immersed nyob rau hauv molten zinc rhuab mus rau ib tug tej yam kub, yog li ntawd zinc reacts nrog rau saum npoo ntawm cov hlau los tsim ib tug tiv thaiv txheej.

Electro-galvanizing: Los ntawm cov txheej txheem electrochemical, hluav taws xob tam sim no yog siv los tso zinc rau ntawm cov kav dej steel los tsim cov txheej txheem tiv thaiv. Txoj kev no feem ntau yog siv rau galvanizing ntawm lub teeb lossis cov qauv me me nrog kev tiv thaiv corrosion.

 

 

 

 

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