Q390MB STEEL PLATE

High strength low alloy Q390MB steel plate is one common steel grade in chinese steel standard GB/T1591-2018.Adding some low alloy elements in common structural steels,we can get better properties high strength low alloy steels.Q390MB steel sheet delivery as TMCP Thermal Mechanical Control Processing.

Technical Requirements & Additional Services for Q390MB steel plate:
♦ TMCP  Thermal Mechanical Control Processing
♦ Cutting,Welding,Machining,Milling as per end user’s CAD drawing
♦ Shot blasting comply to SA 2.5 or SSPC and painting with shop primer
♦ More striction on some chemical elements contains for special applications
♦ Non-destructive inspection under GB/T2970,JB4730,EN 10160,ASTM A435,A577,A578 
♦ Issued Orginal Mill test certificate under EN 10204 FORMAT 3.1/3.2 with ABS,LR,BV,DNV-GL,SGS

►Mechnical property for GB/T 1591-2018 Q390MB STEEL PLATE

Mechanical Property for Q390MB steel plate
	Thickness (mm)
Yield strength (≥Mpa)	T≤16	16<T≤40	40<T≤63	63<T≤80	80<T≤100	100<T
	390	380	360	340	340	335
Tensile strength (Mpa)	T≤40	40<T≤63	63<T≤80	80<T≤100	100<T
	490-650	480-640	470-630	460-620	450-610

►Chemical composition for GB/T 1591-2018 Q390MB STEEL PLATE (Heat Analysis Max%)

Main chemical elements composition of Q390MB
C	Si	Mn	P	S	Nb	V
0.15	0.50	1.70	0.035	0.035	0.01-0.05	0.01-0.12
Ti	Cr	Ni	Cu	Mo	N	Als Min.
0.006-0.05	0.30	0.50	0.40	0.10	0.015	0.015