S690QL1 STEEL PLATE

High tensile strength steel plate S690QL1 is owned minimum yield strength at 690 Mpa and tensile strength within 770-940 Mpa when rolling under steel standard EN 10025-6.The low temperature impacting test shall be done under minus 60 centigrade.The heat treatment for high strength S690QL1,S690QL1 steel plate,S690QL1 steel sheet is under Quenched and tempered.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.

Technical Requirements & Additional Services for S690QL1 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 S690QL1 steel plate:

Thickness (mm)
S690QL1	≥ 3 ≤ 50	> 50 ≤ 100	> 100
Yield strength (≥Mpa)	690	650	630
Tensile strength (Mpa)	770-940	760-930	710-900

►Chemical composition for S690QL1 steel plate (Heat Analysis Max%)

Main chemical elements composition of S690QL1 steel plate
C	Si	Mn	P	S	N	B	Cr
0.20	0.80	1.70	0.020	0.010	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