A302 GR.D Boiler ndi mbale ya Pressure Vessel Steel

Boiler zitsulo mbale A302 Gulu D ndi mtundu wa zitsulo aloyi ndi Manganese, Molybdenum ndi faifi tambala.A302 Gulu D lili apamwamba Nickel element pakugudubuzika kuposa Boiler zitsulo mbale A302 Gulu C.Pressure chotengera zitsulo mbale zokhala ndi mtengo ofanana mu katundu makina monga A302 Grade B ndi A302 Gulu C, zokolola mphamvu pamwamba pa 345 Mpa, ndi mphamvu makoma mkati 550-690 Mpa.Gnee zitsulo akufuna kupereka MTC mu mtundu EN 10204 3.1 kapena EN 10204 3.2 ndi kuyendera gulu lachitatu.

makulidwe: 6mm mpaka 300MM,
m'lifupi: 1500mm kuti 4050mm,
Utali: 3000mm kuti 15000mm

A302 Grade D Chemical Composition
Kaboni, max	%	Manganese, max	%	silicon, max	%	Sulphur max	%
25mm kapena pansi	0.2	Heat Analysis	1.15-1.50	Heat Analysis	0.15-0.40	Zonse zakuda	0.035
25-50 mm	0.23	Kusanthula Kwazinthu	1.07-1.62	Kusanthula Kwazinthu	0.13-0.45
pa 50 mm	0.25
		Molybdenum Max	%	Nickel max	%	Phosphorous	%
		Heat Analysis	0.45-0.60	Heat Analysis	0.70-1.0	Zonse zakuda	0.035
		Kusanthula Kwazinthu	0.41-0.64	Kusanthula Kwazinthu	0.67-1.03

Mechanical Property ya mbale yachitsulo ya A302 Grade D	A302 Gawo D
Mphamvu zolimba, kis [MPa]	80-100 [550-690]
Perekani mphamvu, min, kis [MPa]	50 [345]
Elongation mu 8 in. [200 mm], min, %	17
Kutalikira mu 2 in. [50 mm], min, %	20

Zofunikira Zaukadaulo & Ntchito Zowonjezera:
♦  Kuyesa kwamphamvu kwambiri
♦  Mayeso okhudza kutentha kochepa
♦ Zokhazikika pama mbale zokhuthala kuposa 40mm
♦  Simulated post-welded heat treatment (PWHT)
♦  Kuyenda pansi pa NACE MR-0175 (HIC+SSCC)
♦  Satifiketi yoyeserera ya Orginal Mill yoperekedwa pansi pa EN 10204 FORMAT 3.1/3.2
♦  Kuwombera ndi Kupenta,Kudula ndi kuwotcherera malinga ndi zofuna za wogwiritsa ntchito