Tianjin Brisk Metalwork Co., Ltdyog ib qho ntawm cov tuam ntxhab ntawm ST 37 Mild Steel Hollow Section hauv Suav teb. Peb cov khoom raug xa tawm mus rau Middle East, Southeast Asia, Europe, New Zealand, thiab lwm thaj chaw.Yog tias koj xav paub ntau ntxiv txog peb cov khoom, thov hu rau peb thiab xa koj daim ntawv yuav khoom.

PRODUCTION

ERW Hollow Section

sSAW Hollow Section

SMLS Hollow Section

LSAW Hollow Section

Core Equivalent Steel Qib

Txuj	Qib
TIAB SA 17100	TSI 37-2
TS EN 10025-2	S235 JR
GB/T 700	Q235B
ASTM A36 / A36M / ASTM A36M / ASTM A36 / ASTM A36 / ASTM A36 / ASTM A36 / ASTM A36 / ASTM A36 / ASTM A36 / ASTM A36 / ASTM A36 / ASTM A36 / ASTM A36 / A36M / ASTM A36 / ASTM A36 / A36M / ASTM A36 / ASTM A36 / ASTM A36 / ASTM A36 / A36M / ASTM A36 / ASTM A36 / ASTM A36 / ASTM A36 / A36M / ASTM A36 / ASTM A36 / ASTM A36 / A36M) thiab ASTM A36	A36
JIS G3101	SIB 400

Kev sib piv ntawm cov tshuaj muaj pes tsawg leeg

Element	ST37-2 (DIN)	S235JR (EN)	Q235B (GB)	A36 (ASTM)	SS400 (JIS)
C	Tsawg dua los yog sib npaug li 0.20	Tsawg dua los yog sib npaug li 0.20	0.12-0.20	Tsawg dua los yog sib npaug li 0.25	Tsawg dua los yog sib npaug li 0.25
Si	Tsawg dua los yog sib npaug li 0.35	Tsawg dua los yog sib npaug li 0.35	Tsawg dua lossis sib npaug li 0.30	Tsawg dua lossis sib npaug li 0.40	Tsawg dua los yog sib npaug li 0.35
Mn	Tsawg dua lossis sib npaug li 1.40	Tsawg dua lossis sib npaug li 1.40	0.30-0.70	0.26-1.03	0.30-1.60
P	Tsawg dua lossis sib npaug li 0.045	Tsawg dua lossis sib npaug li 0.045	Tsawg dua lossis sib npaug li 0.045	Tsawg dua lossis sib npaug li 0.040	Tsawg dua lossis sib npaug li 0.050
S	Tsawg dua lossis sib npaug li 0.045	Tsawg dua lossis sib npaug li 0.045	Tsawg dua lossis sib npaug li 0.045	Tsawg dua lossis sib npaug li 0.050	Tsawg dua lossis sib npaug li 0.050
Al	Ntau dua lossis sib npaug li 0.02	Ntau dua lossis sib npaug li 0.02	-	-	-

Manganese cov ntsiab lus ntau ntawm Q235B yog nqaim, thaum lub siab txwv ntawm manganese cov ntsiab lus hauv A36 thiab SS400 yog siab dua, uas muaj txiaj ntsig zoo rau kev txhim kho lub zog;
ST37-2 thiab S235JR meej meej yuav tsum tau tua hlau nrog txhuas deoxidation, whereas Q235B tsis muaj cov ntsiab lus txhuas yuav tsum tau ua.

Mechanical Properties Comparison (Thickness Tsawg dua lossis sib npaug li 16mm)

Kev ua tau zoo	ST37-2 (DIN)	S235JR (EN)	Q235B (GB)	A36 (ASTM)	SS400 (JIS)
Yield zog (Re)	Ntau dua lossis sib npaug li 235 MPa	Ntau dua lossis sib npaug li 235 MPa	Ntau dua lossis sib npaug li 235 MPa	Ntau dua lossis sib npaug li 250 MPa	Ntau dua lossis sib npaug li 245 MPa
Tensile zog (Rm)	340-470 MPa	340-470 MPa	375-500 MPa	400-550 MPa	400-510 MPa
Ntev (A)	Ntau dua lossis sib npaug li 25%	Ntau dua lossis sib npaug li 25%	Ntau dua lossis sib npaug li 26%	Ntau dua lossis sib npaug li 21%	Ntau dua lossis sib npaug li 21%
Kev cuam tshuam (KV)	Ntau dua lossis sib npaug rau 27 J (20 degree)	Ntau dua lossis sib npaug rau 27 J (20 degree)	Ntau dua lossis sib npaug rau 27 J (20 degree)	-	-
Brinell hardness (HBW)	Tsawg dua los yog sib npaug li 120	Tsawg dua los yog sib npaug li 120	Tsawg dua lossis sib npaug li 137	Tsawg dua lossis sib npaug li 121	Tsawg dua lossis sib npaug li 131

Yield zog: A36 thiab SS400 yog me ntsis siab dua ST37-2/S235JR/Q235B, nrog me ntsis zog load-bearing peev xwm;
Elongation: Q235B, ST37-2, thiab S235JR muaj cov yas zoo dua, nrog kev ua haujlwm txias txias thiab stamping kev ua haujlwm;
Kev cuam tshuam lub zog: ASTM A36 thiab JIS SS400 tsis muaj qhov yuav tsum tau muaj rau kev cuam tshuam lub zog ntawm qhov kub thiab txias, ua rau lawv tsis tsim nyog rau qis - kub lossis cuam tshuam - daim ntaub ntawv tiv taus.

Ntsiab nta & Cov txiaj ntsig

Common Siv thiabVim li cas thiaj siv

01.

Kev siv ntau:

Kev tsim kho engineering teb: siv rau cov qauv hlau xws li cov chaw tsim khoom, tsev khaws khoom, thiab gymnasiums.

Mechanical Manufacturing Field: General mechanical Cheebtsam, cov kav dej thauj cov kav dej, thiab ua cov khoom seem.

Cov chaw hauv nroog thiab thaj chaw: dej thiab dej engineering, qis - cov chaw nyob hauv cov pa hluav taws xob (yuav tsum tau tiv thaiv- kev kho corrosion), dej ib ntus rau cov chaw tsim kho.

02.

Vim li cas thiaj siv

Lub zog tawm los Ntau dua lossis sib npaug ntawm 235 MPa, lub zog tensile 340-470 MPa, haum rau cov xwm txheej ntawm qhov tsis tshua muaj siab, qhov kub thiab txias, thiab tsis yog- ib puag ncig corrosive, tsis tas yuav xaiv cov kav hlau uas kim dua.

Nws tuaj yeem ua tau yooj yim ua kom txias txias, flaring, txo, thiab stamping, thiab tuaj yeem ua tiav rau hauv ntau yam zoo li cov kav dej (xws li square thiab rectangular tubes, oval tubes), ua tau raws li cov qauv tsim qauv.

Kev tiv thaiv corrosion ntawm ST37 steel kav yog qhov nruab nrab, tab sis yooj yim los tiv thaiv- kev kho corrosion xws li galvanizing, pleev xim, lossis tshuaj tsuag yas tuaj yeem ua tau raws li kev siv sab nraum zoov rau 5-10 xyoo.