Q315NS Steel

Cov nyhuv ntawm vuam thermal txheej txheem ntawm electrochemical corrosion ntawm Q315NS hauv H2SO4 thiab HCl tov tau tshawb xyuas. Qhov sib txawv weld thermal cycles nrog qhov sib txawv ncov kub tau siv nyob rau hauv Gleeble thermal-force simulation tshuab simulate weld HAZ, thiab kev ntsuas electrochemical tau ua tiav. Cov txiaj ntsig tau pom tias microstructure ntawm granular bainite tau tsim hauv CGHAZ thaum lwm tus muaj ferrite thiab pearlite. Electrochemical corrosion ntawm HAZ sib txawv nyob rau hauv H2SO4 thiab HCl, vim txawv microstructure. BM thiab HAZs hauv 50 wt. % H2SO4 tov muaj qee yam kev coj tus cwj pwm passivation, thaum tsis muaj tus cwj pwm passivation hauv 3.5 wt. % HCl daws. Lub corrosion kuj nyob rau hauv HAZs yog inferior rau hauv BM. Tsis tas li ntawd, kev tiv thaiv corrosion hauv CGHAZ yog qhov tsis muaj zog tshaj plaws


Cov specifications:
Thickness: 3mm-150mm
Dav: 30mm-4000mm
Ntev: 1000mm-12000mm
Txuj: ASTM EN10025 JIS GB

Q315NS Hlau Mechanical:

Yield Rp 0.2 (MPa)	Tensile Rm (MPa)	Kev cuam tshuam KV/Ku (J)	Elongation A (%)	Kev txo qis hauv ntu ntu ntawm pob txha Z (%)	Raws li-kub-kho mob	Brinell hardness (HBW)
623 (≥)	999 (≥)	14	24	31	Kev daws thiab Kev laus, Annealing, Ausaging, Q + T, thiab lwm yam	131

Q315NS Steel Lub cev:

Kub (°C)	Modulus ntawm elasticity (GPa)	Qhov nruab nrab coefficient ntawm thermal expansion 10-6 / (° C) ntawm 20 (° C) thiab	Thermal conductivity (W/m·°C)	Tshwj xeeb thermal muaj peev xwm (J/kg·°C)	Tshwj xeeb hluav taws xob resistivity (Ω mm² / / m)	Qhov ntom (kg/dm³)	Poisson tus coefficient, ν
33	-	-			0.22	-
327	578	-	22.3	214		-
512	-	33	42.2			211	322