Square / Rectangular steel tube (Dub; dub annealed; galvanized)

Loj: 10 * 10mm - 500 * 500mm

Thickness: 0.8mm-60mm

Ntev: 5.8m / 6m / 12m ...

Peb muab S355J2H structural hollow seem, tsim raws li EN 10219-1 (txias tsim) / EN 10210-1 (kub tiav). Qhov no yog cov hlau muaj zog uas muaj qhov tsawg kawg nkaus yield zog ntawm 355 MPa thiab lav qhov cuam tshuam toughness ntawm 27J ntawm -20 degree, ua kom muaj kev ua tau zoo heev rau cov khoom thauj khoom txawm tias nyob hauv qhov chaw txias. Nws nta cov ntsiab lus carbon tsawg (max 0.22%) rau qhov zoo tshaj plaws weldability. Muaj nyob rau hauv voj voog, Square, thiab Rectular seem, muab nrog EN 10204 3.1 Mill Certificates

Qib S355J2H

Garde

Lub npe S355J2H ua raws li tus qauv nomenclature txhais los ntawm European qauv (EN).

S =Cov Qauv Hlau (siv rau kev thauj khoom-cov ntaub ntawv bearing).

355 = Yam tsawg kawg nkaus Yield Strength(hauv MPa). Qhov no qhia tau hais tias cov hlau muaj qhov tsawg kawg nkaus yield zog ntawm355 MPa raurau thicknesses txog li 16 hli.

J2 =Yuav tsum tau xeem Impact. Qhov no qhia tau hais tias cov khoom yuav tsum tau ua raws li Charpy V- ntsuas qhov ntsuas qhov ntsuas kub ntawm-20 degree, nrog qhov nruab nrab qhov nruab nrab lub zog nqus ntawm 27 Joules. Qhov no yog qhov tseem ceeb ntawm kev muag khoom rau kev siv txias - huab cua.

H=Hollow Section. Qhov no txhais tau hais tias cov hlau yog npaj rau kev tsim cov hollow profiles (tubes), qhov txawv ntawm cov qauv phaj lossis cov ntawv qib.

Cov Qauv Tseem Ceeb: EN 10210 vs EN 10219

Thaum ua lag luam S355J2H, koj yuav tsum qhia tus qauv tsim, raws li nws txhais cov txheej txheem ntau lawm thiab kam rau ua.

Txuj	Lub Npe	Kev tsim khoom	Feature tseem ceeb rau cov neeg siv khoom
TS EN 10210-1	Kub tiav structural hollow seem	Kub sib sau (nrog lossis tsis muaj kev kho cua sov tom ntej)	Feem ntau txo qis qhov kev ntxhov siab; feem ntau nyiam rau vuam thiab dynamic loading.
TS EN 10219-1	Txias tsim welded structural hollow seem	Cold forming (welded)	Tighter dimensional tolerances; feem ntau yog tus nqi ntau dua -zoo rau cov qauv

Lus Cim: Ob qho qauv npog tib yam S355J2H qib chemistry thiab cov khoom siv kho tshuab, tab sis qhov ntev ntev thiab kev xa khoom sib txawv me ntsis

Tshuaj muaj pes tsawg leeg

Tshuaj

Element	Feem pua (%)	Kev cuam tshuam rau Kev Lag Luam
Cov pa roj carbon (C)	Tsawg dua lossis sib npaug li 0.22	Cov ntsiab lus qis carbon ua kom zoo weldability yam tsis muaj preheating hauv feem ntau.
Silicon (Si)	Tsawg dua los yog sib npaug li 0.55	Siv rau deoxidation (tua) ntawm cov hlau.
Manganese (Mn)	Tsawg dua lossis sib npaug li 1.60	Ntxiv dag zog thiab hardness.
Phosphorus (P)	Tsawg dua lossis sib npaug li 0.030	Khaws qis kom tswj tau qhov ductility.
Sulfur (S)	Tsawg dua lossis sib npaug li 0.030	Khaws qis kom tsis txhob brittleness.
Carbon Equivalent (CEV)	Tsawg dua lossis sib npaug li 0.45	Qhov tseem ceeb rau welding. Tus nqi no pab tus neeg siv khoom txiav txim siab qhov ntsuas vuam kom tsis txhob tawg

Mechanical Properties

Cov no yog cov txiaj ntsig tau lees paub uas koj yuav tau lees paub hauv koj Daim Ntawv Pov Thawj Zeb Xeem (EN 10204 3.1 lossis 3.2)

Lub zog thiab Ductility
Khoom	Tus nqi	Qhov xwm txheej
Yield zog (ReH)	Ntau dua lossis sib npaug li 355 MPa	Rau phab ntsa thickness (T) Tsawg dua los yog sib npaug li 16 hli.
	Ntau dua lossis sib npaug li 345 MPa	Rau T> 16 hli rau Tsawg dua lossis sib npaug li 40 hli.
Tensile zog (Rm)	470 - 630 MPa	Rau phab ntsa thickness Ntau dua los yog sib npaug li 3 hli mus rau Less dua los yog sib npaug rau 40mm.
	510 - 680 MPa	Rau phab ntsa thickness <3mm.
Elongation (A)	Ntau dua lossis sib npaug li 20%	Tsawg feem pua tom qab tawg

Toughness (Impact Resistance)
Khoom	Tus nqi
Kev ntsuas kub	-20 degree
Yam tsawg kawg nkaus zog	27 Joules (nruab nrab rau 3 tus qauv, 10x10mm qauv)