S550Q STEEL PLATE

S550Q,S550Q STEEL PLATE,S550Q STEEL SHEET also named as S550Q high strength low alloy steel plate under steel standard EN 10025-6 which is for hot rolled structural steels with high yield strength and tensile strength in quenched and tempered delivery condition.Quenching operation which consists of cooling a ferrous steel plate more rapidly than in still air.Tempering heat treatment applied to a ferrous steel plate generally after quench hardening or other heat treatment to bring the properties to the required level.S550Q shall be done low temperature impacting test under minus 20 centigrade.

Technical Requirements & Additional Services for S550Q steel plate:
♦ Low temperature impacting test
♦ Quenching and Tempering heat treatment
♦ 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 S550Q steel plate:

Thickness (mm)
S550Q	≥ 3 ≤ 50	> 50 ≤ 100	> 100
Yield strength (≥Mpa)	550	530	490
Tensile strength (Mpa)	640-820	640-820	590-770

►Chemical composition for S550Q steel plate (Heat Analysis Max%)

Main chemical elements composition of S550Q steel plate
C	Si	Mn	P	S	N	B	Cr
0.20	0.80	1.70	0.025	0.015	0.015	0.005	1.50
Cu	Mo	Nb	Ni	Ti	V	Zr
0.50	0.70	0.06	2.0	0.05	0.12	0.15