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

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

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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
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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EN 10025-6 S690QL High Strength Steels