S235 J0 Cov Yeeb Nkab Hlau Kauv - Kev Ua Tau Zoo Ntawm Cov Yeeb Nkab Loj Txoj Kab Uas Muaj Welded

Kev Piav Qhia Luv:

Qhov no ntawm Cov Txheej Txheem European no qhia txog cov xwm txheej kev xa khoom rau cov khoom siv vuam txias, cov seem hollow ntawm cov duab voj voog, square lossis rectangular thiab siv rau cov seem hollow tsim txias yam tsis muaj kev kho cua sov tom qab.

Cangzhou Spiral Steel Pipes Group Co., Ltd muab cov kav hlau hollow rau cov qauv.

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Cov Khoom Qhia Txog Khoom

Cov Cim Npe Khoom

Peb zoo siab los qhia peb cov khoom zoo tshaj plaws,S235 J0 Kauv Hlau Yeeb Nkab, tsim los ua kom tau raws li qhov xav tau ntawm ntau yam lag luam. Ua ib lub chaw tsim khoom ua lag luam hauv daim teb no, peb siv cov thev naus laus zis siab heev thiab kev txawj ntse los tsim cov khoom zookab yeeb nkab nrog kev ua haujlwm ntev thiab kev ua tau zoo.

Peb cov kav hlau kauv yog ua los ntawm cov hlau strip coils los ntawm kev siv tshuab ob-xaim ob sab submerged arc welding. Los ntawm kev siv tshuab extrusion molding kub tas li, peb xyuas kom meej tias txhua lub raj raug tsim nrog qhov tseeb thiab sib xws tshaj plaws. Cov txheej txheem tsim khoom zoo no ua kom peb cov khoom ua tau raws li cov qauv zoo tshaj plaws, ua rau lawv zoo tagnrho rau ntau yam kev siv.

Khoom Siv Kho Tshuab

qib hlau	lub zog tsawg kawg nkaus Mpa		Lub zog tensile		Qhov ntev tsawg kawg nkaus %	Lub zog cuam tshuam tsawg kawg nkaus J
qib hlau	Qhov tuab uas tau teev tseg mm		Qhov tuab uas tau teev tseg mm		Qhov tuab uas tau teev tseg mm	ntawm qhov kub thiab txias ntawm
	<16	> 16≤40	<3	≥3≤40	≤40	-20 ℃	0℃	20 ℃
S235JRH	235	225	360-510	360-510	24	-	-	27
S275J0H	275	265	430-580	410-560	20	-	27	-
S275J2H	275	265	430-580	410-560	20	27	-	-
S355J0H	365	345	510-680	470-630	20	-	27	-
S355J2H						27	-	-
S355K2H						40	-	-

Piv nrog cov kav dej welded ib txwm muaj,S235 J0 kauv hlau yeeb nkab muaj cov yam ntxwv tseem ceeb hauv qab no:

A. Thaum lub sijhawm ua cov txheej txheem, cov hlau phaj yuav deforms sib npaug thiab muaj qhov kev ntxhov siab tsawg kawg nkaus. Qhov no tsis yog tsuas yog ua kom lub neej ntawm cov yeeb nkab ntev dua xwb, tab sis nws kuj ua kom cov yeeb nkab nto du thiab tsis muaj khawb lossis qhov tsis zoo.

b. Peb cov txheej txheem vuam ob sab uas siv submerged arc welding ua rau vuam tau zoo nyob rau hauv qhov chaw zoo tshaj plaws. Qhov no txo qhov tshwm sim ntawm qhov tsis zoo xws li cov npoo tsis sib dhos, kev vuam tsis sib xws, thiab kev vuam tsis tiav. Yog li ntawd, peb cov kav dej muaj qhov zoo vuam zoo heev, yooj yim tswj thiab xyuas kom meej tias muaj kev ua haujlwm zoo heev.

C. Qhov zoo yog peb qhov tseem ceeb tshaj plaws. Yog li ntawd, peb ua qhov kev tshuaj xyuas zoo 100% rau txhua lub yeeb nkab hlau uas peb tsim. Qhov kev tshuaj xyuas no lav tias peb cov yeeb nkab ua tau raws li cov qauv kev lag luam siab tshaj plaws, ua rau koj muaj kev thaj yeeb nyab xeeb thoob plaws hauv kev tsim khoom thiab siv cov txheej txheem.

Ntawm Cangzhou Spiral Steel Pipe Group Co., Ltd., peb zoo siab heev rau kev tsim khoomS235 J0 Kauv Hlau Yeeb Nkab. Peb nyob hauv Cangzhou City, Hebei Province thiab tau ua haujlwm rau kev lag luam txij li xyoo 1993. Npog thaj tsam ntawm 350,000 square meters thiab tag nrho cov cuab tam ntawm 680 lab yuan, nws tau tso lub hauv paus ruaj khov rau kev muaj peev xwm tsim khoom zoo heev. Peb pab neeg mob siab rau ntawm 680 tus neeg ua haujlwm txawj ua haujlwm tsis muaj zog kom ntseeg tau tias muaj kev tsim khoom tsis muaj teeb meem thiab xa khoom raws sijhawm ntawm 400,000 tons ntawm cov kav hlau kauv txhua xyoo.

Cov Tshuaj Lom Zem

Qib hlau		Hom de-oxidation a	% los ntawm pawg, siab tshaj plaws
Lub npe hlau	Tus lej hlau	C	C	Si	Mn	P	S	Nb
S235JRH	1.0039	FF	0,17	—	1,40	0,040	0,040	0.009
S275J0H	1.0149	FF	0,20	—	1,50	0,035	0,035	0,009
S275J2H	1.0138	FF	0,20	—	1,50	0,030	0,030	—
S355J0H	1.0547	FF	0,22	0,55	1,60	0,035	0,035	0,009
S355J2H	1.0576	FF	0,22	0,55	1,60	0,030	0,030	—
S355K2H	1.0512	FF	0,22	0,55	1,60	0,030	0,030	—
a. Txoj kev deoxidation yog raws li nram no: FF: Cov hlau uas tua tag nrho uas muaj cov khoom sib txuas nrog nitrogen txaus kom sib txuas nrog nitrogen tau (piv txwv li tsawg kawg 0,020% tag nrho Al lossis 0,015% soluble Al). b. Tus nqi siab tshaj plaws rau nitrogen tsis siv yog tias cov tshuaj lom neeg qhia tias muaj tsawg kawg nkaus Al tag nrho cov ntsiab lus ntawm 0,020% nrog qhov tsawg kawg nkaus Al/N piv ntawm 2:1, lossis yog tias muaj lwm cov ntsiab lus N-binding txaus. Cov ntsiab lus N-binding yuav tsum tau sau tseg rau hauv Daim Ntawv Tshuaj Xyuas.

Ntawm Cangzhou Spiral Steel Pipe Group Co., Ltd., peb zoo siab heev rau kev tsim S235 J0 Spiral Steel Pipe. Peb nyob hauv Cangzhou City, Hebei Province thiab tau ua haujlwm rau kev lag luam txij li xyoo 1993. Npog thaj tsam ntawm350,000 square meters thiab tag nrho cov cuab tam ntawm 680 lab yuan, nws tau tsim lub hauv paus ruaj khov rau kev muaj peev xwm tsim khoom zoo heev. Peb pab neeg ua haujlwm txawj ntse ntawm 680 tus neeg ua haujlwm ua haujlwm tsis muaj kev sib zog kom ntseeg tau tias kev tsim khoom zoo thiab xa khoom raws sijhawm ntawm 400,000 tons ntawm cov kav hlau sib dhos txhua xyoo.

Hauv kev xaus lus, S235 J0 kauv hlau yeeb nkab muab qhov zoo thiab ruaj khov tsis muaj qhov sib piv rau kojlub raj xa dej loj uas vuamecov kev xav tau. Nrog lawv cov txheej txheem tsim khoom siab heev, kev vuam zoo tshaj plaws thiab kev tshuaj xyuas zoo, peb cov khoom tau lees tias yuav tshaj qhov koj xav tau. Ntseeg Cangzhou Spiral Steel Pipe Group Co., Ltd.'s kev txawj ntse thiab kev paub dhau los kom tau raws li tag nrho koj cov yeeb nkab steel xav tau.