HII STEEL PLATE

HII steel plate,HII steel sheet,HII boiler plate owned the minimum yield strength at 265Mpa for thickness equal and below 16mm,255Mpa for thickness within 16-40mm,tensile strength within 410-530Mpa for steel plate thickness equal and below 100mm,400-530 Mpa for steel plate thickness above 100mm.The equivalent steel grade for boiler steel plate HII is P265GH in EN 10028-2,and SB410 in Japanese steel standard.Now Xinsteel can offer the maximum thickness for boiler steel plate HII till 350mm with Normalized and ultrasonic examination.

Technical Requirements & Additional Services for HII steel plate:
♦ Low temperature impacting test
♦ Rolling under standard NACE MR-0175 (HIC+SSCC)
♦ Ultrasonic test under EN 10160,ASTM A435,A577,A578
♦ Issued Orginal Mill test certificate under EN 10204 FORMAT 3.1/3.2
♦ Shot blasting and Painting,Cutting and welding as per end user’s demands 

►Mechnical property for HII steel plate:

Thickness (mm)
HII	≤ 16	> 16 ≤ 40	> 40 ≤ 60	> 60 ≤ 100	> 100
Yield strength (≥Mpa)	265	255	245	215	200
	≤ 60			> 60 ≤ 100	> 100
Tensile strength (Mpa)	410-530			410-530	400-530

►Chemical composition for HII steel plate (Heat Analysis Max%)

Main chemical elements composition of HII steel plate
C	Si	Mn	P	S	Al(total)	Cr
0.20	0.35	0.50-1.30	0.035	0.030	≥0.02	0.25
Cu	Mo	Nb	Ni	Ti	V
0.30	0.10	0.01	0.30	0.03	0.03