Corten B hlau

Corten B hlau
ASTM Corten B steel qib yog cov khoom kub dov ntawm cov qauv hlau hauv cov txheej txheem kev xa khoom nrog kev txhim kho atmospheric corrosion resistance.The steel qib Corten B yog raws li ASTM tus qauv uas nrog lub zog tawm los ntawm 355MPa thiab 345MPa uas yog raws li qhov sib txawv thickness.
Corten B - huab cua resistant steel uas zoo dua haum rau hnyav thiab load bearing qauv.
Cov khoom tsim nws tus kheej tiv thaiv txheej thaum raug rau atmospheric ntsiab. Qhov tseem ceeb, txheej saum toj kawg nkaus corrodes uas tom qab ntawd tiv thaiv cov hlau hauv qab nws. Lub ntuj tiav tsis tas yuav tsum muaj kev saib xyuas xws li kev pleev xim, uas ua rau cov khoom siv tau zoo heev rau lwm cov qauv hlau.
Kev pleev xim thiab kev saib xyuas yuav xav tau yog tias cov qauv tseem ntub tas li vim tias cov txheej txheem tiv thaiv yuav tsis tsim. Ib qho piv txwv zoo yog qhov twg lub hauv paus ntawm cov qauv sib ntsib nrog hauv av los yog ib nrab submerged.


Qib & Sib npaug

Corten	TS EN 10025-5: 2004
Corten B	S355J2W

Chemical Cheebtsam

Qib	C	Si	Mn	P	S	Cu	Ni	Cr	V	N
Corten-A	0.12	0.25-0.75	0.20-0.50	0.07-0.15	0.03	0.25-0.55	0.65	0.50-1.25
Corten-B	0.16	0.30-0.50	0.80-1.25	0.03	0.03	0.25-0.40	0.4	0.40-0.65	0.02-0.10

ASTM Corten B steel Mechanical zog:
Nyob rau hauv chav tsev kub rau daim hlau ≥3mm nyob rau hauv thickness (transverse test specimans, raws li EN 10002). Kev xav tau rau cov ntawv kub dov ≤ 3mm hauv thickness raws li EN 10025-5.

Qib	Thickness (mm)	Yield zog MPa (min)	Tensile zog MPa	Elongation % (min)
Corten B	≤16	355	470-630	20
	> 16≤50	345

1 Mpa = 1N/mm2
Qhov cuam tshuam lub zog yog txiav txim siab ntawm ISO-V longitudinal test specimens ntawm qhov kub ntawm -20 ° C raws li qhov nruab nrab ntawm peb qhov kev xeem. Rau cov khoom thicknesses ≥10mm tus nqi nruab nrab yog tsawg kawg yog 27 J. Rau cov thicknesses ntawm 10mm thiab 6mm, qhov tsawg kawg nkaus tus nqi yog txo proportionally rau cov qauv dav (khoom thickness).

Corten B Steel Xa lub xeev

Kub Rolled, Cold Rolled, Normalized, Quenched, Tempering, Thermal Mechanical Control Process (TMCP), Electroslag Remelting Technical, HIC test.