S890QL Quenched and Tempered Structural Steel

EN10025 S890QL Extra High Strength Steel Plate

S890QL is an extra high strength steel to EN10025-6:2004 and the steel number is 1.8983. S890QL has a minimum yield strength of 890Mpa in quenched and tempered conditions, with it’s low temperature of -40 ºC, this steel grade perform good durability in extreme working environments.

S890QL extra high strength structural steel plate is an ideal leaner weight for your project as it has 224% more higher strength than S275JR structural steel, it is relatively easy welding and fabricate. It has becoming more and more popular in crane, oil and gas,

mining, earthmoving, agricultural, trailers, theme park, bridge building, extreme weather search and rescue industries and modern super structural design where light weight and

leaner thickness steel plate with increase payload capacity. Today, beautiful high-rice buildings and super architectural design art has became reality because of the discovery of S890QL steel plate.

Other steel product for 890Mpa extra high yield strength such as seamless tube in rectangular, square, circular, elliptical, half-elliptical, flat-oval, octagonal, hexagonal and triangular are available in Beverly Steel Malaysia, please contact our sales team for further information.

S890QL Grade Designation

• S = Structural Steel

• 890 = minimum yield strength (MPa)

• Q = Quenching & Tempering

• L = Low notch toughness testing temperatures

Condition of Delivery

Water quenched and tempered.

S890QL Chemical Composition

C	Si	Mn	P	S	B	Cr	Cu	Mo
0.20	0.80	1.70	0.020	0.010	0.005	1.50	0.50	0.70
N	Nb*	Ni	Ti*	V*	Zr*
0.015	0.06	2.0	0.05	0.12	0.15

* There shall be at least 0.015% of a grain-refining element present. Aluminium is also one of these elements. The 0.015% applies to soluble aluminium, this value regarded as attained if the total aluminium content is at least 0.018%.

* Please note :The manufacturer reserves the right to change the chemical composition.

CEV - Carbon Equivalent Value

CEV = C + Mn/6 + (Cr+Mo+V)/5+(Cu+Ni)/15

S890QL Quenched and Tempered Structural Steel

S890QL Mechanical Properties

Plate Thickness	Yield Strength	Tensile Strength	Elongation
MM	ReH(Mpa)	Rm(Mpa)	A5% Minimum
3 to 50	890	940~1100	11
> 50 to 100	830	880~1100	11

S890QL V Notch Impact Test

Position of Samples	0 ºC	-20 ºC	-40 ºC
Longitudinal	50 Joules	40 Joules	30 Joules
Transverse	35 Joules	30 Joules	27 Joules

Processing of S890QL High Strength Steel Plate

Cold Forming

S690QL1 steel plate is suitable for cold-forming adhering to a bending or folding radius > 4 times steel plate thickness longitudinal and > 3 times transverse to rolling direction. A subsequent stress relief annealing is possible up to a temperature of 580 ºC (degree C).

Minimum recommended inside bending radius
Axis of bend in transverse direction 3.0t	Axis of bend in longitudinal direction 4.0t

S890QL Quenched and Tempered Structural Steel

Hot-Forming

Hot-forming above 580°C is possible. A subsequent quenching and tempering has to be carried out according to the conditions of delivery.

Milling

Drilling with cobalt-alloyed high-speed steels HSSCO. Cutting speed should be approximately 17 - 19 m/min. If HSS drills are used, cutting speed should be approximately 3 – 5 m/min.

Flame-Cutting

The temperature of the material should be at least RT for flame-cutting. In addition, the following preheating temperatures are recommended for certain plate thicknesses: For plate thicknesses over 40mm, preheat to 100°C and for thicknesses over 80mm, preheat to 150°C.

Welding

S890QL steel is suitable for all current welding methods. The temperature of the material should be at least RT for welding. In addition, the following preheating temperatures are recommended for certain plate thicknesses:

20mm – 40mm: 75°C

Over 40mm: 100°C

60mm and over: 150°C

These indications are standard values only, in principle, indications of SEW 088 should be adhered to.

The t 8/5 times should be between 5 and 25 s, depending on the welding technique used. Should stress relief annealing be necessary for constructional reasons, this should be done in the temperature range of 530°C-580°C .

Country of Origin :

Japan, Korea, China, UK, Denmark, Germany, French, Austria, Finland and Sweden.

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Please note: the technical information above is for guidance only – for exact specifications please check with our sales team.