ASTM A299 GR.B Alloy Siab siab nkoj steel phaj

ASTM A299 Qib B boiler steel phaj nrog yam tsawg kawg nkaus lub zog siab tshaj 325 Mpa, thiab tensile lub zog nyob rau hauv 550-690 Mpa.Piv nrog lub siab lub nkoj steel phaj A299 Qib A, tawm los lub zog siab tshaj 290 Mpa thiab tensile lub zog nyob rau hauv 515-655 Mpa, siab hlab ntsha steel phaj SA299 Qib B muaj qhov muaj txiaj ntsig ntau dua.Ntxiv cov kev xav tau rau boiler steel daim hlau SA299 Qib B xws li simulated tom qab vuam cua sov kev kho mob, tsis tshua muaj kub impcting xeem, poob yuag kuaj thiab kub siab tension test.Ultrasonice xeem yuav tsum tau ua rau SA299 Qib B boiler steel phaj thaum dov hauv peb cov hlau zeb.

A299 Qib B tshuaj muaj pes tsawg leeg
Qib	Cov ntsiab lus Max (%)
	C	Si	Mn	P	S	Mo
A299 PAB	0.28-0.30	0.13-0.45	0.84 -1.62	0.035	0.035	-

Qib	A299 Qib B Mechanical Property
	Thickness	Yield	Tensile	Elongation
A299 PAB	mm	Min Mpa	Mpa	Min %
	t 50	310-325	550-690	19
	50	310-325	550-690	19

Technical Requirements & Additional Services:
♦ Kev kuaj mob siab
♦ Cov ntsuas kub tsis tshua muaj kev cuam tshuam
♦ Normalised rau daim hlau tuab tshaj 40mm
♦ Cimulated tom qab vuam kev kho cua sov (PWHT)
♦ Dov raws li tus qauv NACE MR-0175 (HIC+SSCC)
♦ Muab Daim Ntawv Pov Thawj Ua Ntej Mill Test raws li EN 10204 FORMAT 3.1 / 3.2
♦ Tsov blasting thiab Painting, Txiav thiab vuam raws li ib tus neeg siv kawg xav tau