S690QL1 1.8988 - DIN EN 10025-6-2020

Grade	S690QL1
Germany W-Nr.	1.8988
Corresponding Standard	DIN EN 10025-6-2020 Hot Rolled Products of Structural Steels Part 6: Technical Delivery Conditions for Flat Products Made of High Yield Strength Structural Steels in The Quenched and Tempered Condition
Classification	Alloy Steel
Properties	Strength Quench Hardness

S690QL1 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	N	Ti	V	Nb	Zr	B
Minimum Value	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Maximum Value	0.2	0.8	1.7	0.02	0.01	1.5	4	0.5	0.7	0.015	0.05	0.12	0.06	0.15	0.005

①Depending on the thickness of the product and the manufacturing conditions, the manufacturer may add to the steel one or several alloying elements up to the maximum values given in order to obtain the specified properties

S690QL1 Mechanical Properties

condition	Test Temperature	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Impact Energy Absorption KV2 J
Hot-rolled plates; 3≤t≤50	Ambient Temperature	Tempering (Q)	770~940	≥690	≥14
Hot-rolled plates; 50<t≤100	Ambient Temperature	Tempering (Q)	760~930	≥650	≥14
Hot rolled plates; 100<t≤200	Ambient Temperature	Tempering (Q)	710~900	≥630	≥14
Hot-rolled plates; transverse	0°C					≥40
Hot-rolled plates; transverse	-20°C					≥35
Hot-rolled plates; transverse	-40°C					≥30
Hot-rolled plates; transverse	-60°C					≥27
Hot-rolled plates; longitudinal	0°C					≥60
Hot-rolled plates; longitudinal	-20°C					≥50
Hot-rolled plates; longitudinal	-40°C					≥40
Hot-rolled plates; longitudinal	-60°C					≥30

Values of impact energy at test temperatures，in 0°C、-20°C、-40°C and -60°C

Minimum recommended inside bend radii for flanging, for nominal thicknesses (t) 3 ≤ t ≤ 16
Axis of bend in transverse direction 3t；Axis of bend in longitudinal direction 4t

S690QL1 Corresponding Standards(Same grade name, different standards)

1	DIN EN 10025-6-2020
	S690QL1 1.8988
2	EN 10025-6-2019(+A1:2022)
	S690QL1 1.8988

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