HI STEEL PLATE

HI steel plate,HI steel sheet,HI boiler plate under steel standard DIN17155 is mainly used for welded boiler and pressure vessel buildings.Now more and more end users adopt boiler steel plate P235GH under EN 10028-2 replacement of HI boiler steel plates.P235GH and HI pressure vessel steel plates have the same mechanical property values as minimum yield strength at 235 Mpa and tensile strength within 360-480 Mpa.When rolling boiler steel plate HI,normalized heat treatment and ultrasonic examination is necessary. 

Technical Requirements & Additional Services for HI 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 HI steel plate:

Thickness (mm)
HI	≤ 16	> 16 ≤ 40	> 40 ≤ 60	> 60 ≤ 100	> 100
Yield strength (≥Mpa)	235	225	215	200	185
	≤ 60			> 60 ≤ 100	> 100
Tensile strength (Mpa)	360-480			360-480	350-480

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

Main chemical elements composition of HI steel plate
C	Si	Mn	P	S	Al(total)	Cr
0.16	0.35	0.40-1.20	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