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HIGH YIELD STRUCTURAL STEEL PLATES

HIGH YIELD STRUCTURAL STEEL PLATES
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Product Code : 3
Brand Name : CONQUEST STEEL & ALLOYS
Product Description

HIGHYIELD STRUCTURAL STEELPLATES


S690 QL is a high yieldstructural steel grade produced in compliance with EN 10025:6:2004.The material is heats treated using the quench and temper process andhas good bending and welding properties. 

- The code “S” for steelgrade S690QL means structural steel.

- The code “Q” refers tothe delivery condition, in this case to quenched & Tempered.

- The code “ L” means thatthe average minimum values for impact energy have been definedat a temperature of -40°C.


Due to the materials highstrength nature, using S690QL will promote leaner designed structureswith increased payload capacity and energy efficiency. 

The steel is used in a varietyof sectors including

- Heavy transportation

- Machine building

- Steel constructions

- Lifting equipment


Applications : Crane booms,mining and earthmoving equipment, bridges,material handling,

trailers and agriculturalequipment.


ChemicalComposition :


Grade

C

Si

Mn

P

S

N

B

Cr

Cu

Mo

Nb*

Ni

Ti*

V*

Zr*

S690QL

0.20

0.80

1.70

0.025

0.015

0.015

0.0050

1.50

0.50

0.70

0.06

2.0

0.05

0.12

0.15


Atleast 0.015% of grain-refining element present. Aluminium is also oneof these elements.

MechanicalProperties :


TensileStrength

(MPa)

YieldStrength

(MPa)

Min.% Elongation

afterfracture

Nominalthickness (mm)

Nominalthickness (mm)

≥3≤50

≥50≤100

≥100≤150

≥3≤50

≥50≤100

≥100≤150

690

690

690

770- 940

770- 940

770- 940

14



VNotch Impact Testing


Grade

SampleOrientation

@0°C

@-20°C

@-40°C

@-60°C

S690QL

Longitudinal

50J

40J

30J

––

Traverse

35J

30J

27J

––



Grade

SampleOrientation

@0°C

@-20°C

@-40°C

@-60°C

S690QL

Longitudinal

50J

40J

30J

––

Traverse

35J

30J

27J

––


Keywords


HEATTREATED PLATES

HIGHYIELD STRUCTURAL STEELPLATES

S690QL

S690QL1

JFE 780LE

JFE HITEN 780LE

NAXTRA 70

EN10025-6 S690Q

EN10025-6 S690QL

EN10025-6 S690QL1

ALFORM 700 M

ALDUR700 Q

ALDUR700 QL

ALDUR700 QL1

DILLIMAX690T

WELDOX700


CONQUEST STEEL & ALLOYS
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