Q310GNH hlau

feem ntau raug xa mus los ntawm cov cim lag luam genericized COR-TEN steel thiab qee zaum sau tsis muaj lub cim raws li corten steel, yog ib pab pawg ntawm cov hlau alloys uas tau tsim los tshem tawm qhov xav tau kev pleev xim, thiab tsim kom muaj qhov ruaj khov zoo li xeb yog tias raug huab cua. tau ntau xyoo.
Thawj COR-TEN tau txais tus qauv tsim A 242 (COR-TEN A) los ntawm ASTM International cov qauv pawg pawg. Cov qib ASTM tshiab dua yog A 588 (COR-TEN B) thiab A 606 rau cov ntawv nyias. Tag nrho cov alloys yog nyob rau hauv kev tsim thiab siv.

Piv rau carbon steel, Q310GNH steel muaj zoo corrosion kuj nyob rau hauv cov huab cua. Piv nrog rau cov hlau tsis muaj steel, tsuas muaj cov kab hlau rhuav tshem, thiab tag nrho cov phosphorus, tooj liab, chromium, npib tsib xee, molybdenum, niobium, vanadium, titanium, thiab lwm yam ntawm cov hlau xws li weathering steel tsuas yog ob peb feem pua.

GB/T 4171 Q310GNH Weathering Steel Phaj Specification

Thickness: 1mm-100mm

Dav: 1000mm txog 4100mm

Ntev: 1000mm txog 12000mm

GB/T 4171 Q310GNH Huab cua steel phaj tshuaj muaj pes tsawg leeg (%)

C≤0.12 Silicon: 0.25-0.75 Manganese: 0.2-0.5 P: 0.07-0.12 seconds≤0.02

GB/T 4171 Q310GNH Mechanical Properties of Weathering Steel Phaj

Tensile zog Min MPa: 450 Tawm lub zog Min MPa: 310

Kev kho deg: kho kev daws teeb meem

Nto: Hoobkas nto, rusty, unrusted nto

Daim ntawv pov thawj: BV, Daim Ntawv Pov Thawj Zoo, SGS

Q310GNH steel Chemical muaj pes tsawg leeg (Kev Ntsuas Kub Max%):

Qib	C Max	Si	Mn	P	S Max
Q310 NPO	0.12	0.1-0.4	0.2-0.5	0.07-0.12	0.02

Q295GNH hlau Mechanical Property:

Qib	Yield zog (MPa)	Tensile zog (MPa)	% Elongation min
Q310 NPO	285-310	430-560	24