EN 10025-6 high strength steel plates S690Q, S690QL, S690QL1

Description: EN 10025-6 high strength steel plates S690Q, S690QL, S690QL1 are quenched and tempered steel plates, for which reason their low-temperature impact toughness has...

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EN 10025-6 high strength steel plates S690Q, S690QL, S690QL1 Description

EN 10025-6 high strength steel plates S690Q, S690QL, S690QL1 are quenched and tempered steel plates, for which reason their low-temperature impact toughness has been greatly improved. With high yield strength and tensile strength, S690Q, S690QL, S690QL1 steel plates are widely used in coal mine machinery and engineering machinery.

EN 10025-6 high strength steel plates S690Q, S690QL, S690QL1 chemical composition of heat analysis:

Grade	C	Si	Mn	P	S	N	B	Cr	Cu	Mo	Nb	Ni	Ti	V	Zr
S690Q	0.20	0.80	1.70	0.025	0.015	0.015	0.005	1.50	0.50	0.70	0.06	4.0	0.05	0.12	0.15
S690QL, S690QL1				0.020	0.010

EN 10025-6 high strength steel plates S690Q, S690QL, S690QL1 chemical composition of product analysis:

Grade	C	Si	Mn	P	S	N	B	Cr	Cu	Mo	Nb	Ni	Ti	V	Zr
S690Q	0.22	0.86	1.8	0.03	0.017	0.016	0.006	1.6	0.55	0.74	0.07	4.1	0.07	0.14	0.17
S690QL, S690QL1				0.025	0.012

EN 10025-6 high strength steel plates S690Q, S690QL, S690QL1 mechanical properties - tensile test properties at room temperature:

EN10025-6	Steel number	Min. Yield Strength (MPa)				Tensile Strength (MPa)				Min. Elongation
		≥3 ≤50	>50 ≤100	>100 ≤125	>125 ≤200	≥3 ≤50	>50 ≤100	>100 ≤125	>125 ≤200
S690Q	1.8931	690	650	630		770 to 940	760 to 930	710 to 900		14
S690QL	1.8928
S690QL1	1.8988

EN 10025-6 high strength steel plates S690Q, S690QL, S690QL1 mechanical properties - impact energy on test pieces:

EN 10025-6	Min. impact energy (J) at test temperature (℃)
Grade	0		-20		-40		-60
Grade	Longitudinal	Transverse	Longitudinal	Transverse	Longitudinal	Transverse	Longitudinal	Transverse
S690Q	40	30	30	27	-	-	-	-
S690QL	50	35	40	30	30	27	-	-
S690QL1	60	40	50	35	40	30	30	27

EN 10025-6 high strength steel plates S690Q, S690QL, S690QL1 are used to manufacture all kinds of construction machinery, such as drilling rigs, electric shovels, electric wheel dumpers, mining trucks, excavators, loaders, bulldozers, all kinds of cranes, coal mine hydraulic supports and other structural parts.

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