EN 10137 S550QL high yield strength structural steels

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S550QL high yield strength structural steels of quenched and tempered
 
S550Q standard toughness, S550QL high toughness and S550QL1 extra toughness
S550Q - according to EN 10137 with minimum impact values down to -20°C (-4°F)
S550QL - according to EN 10137with minimum impact values down to -40°C (-40°F)
S550QL1- according to EN 10137with minimum impact values down to -60°C (-76°F)
 
Unitedsteel Mill Supply High strength steel plate, and have various stock size, If you require high strength steel plate. Please contact us by Email sales@unitedsteelplate.com to contact us.
 
Condition of Delivery EN 10137 Water quenched and tempered.
S550QL Chemical Composition
Grade The Element Max (%)
C Si Mn P S N B Cr
S550QL 0.20 0.80 1.70 0.020-0.025 0.010-0.015 0.015 0.005 1.50
Cu Mo Nb Ni Ti V Zr  
0.50 0.70 0.06 2.0 0.05 0.12 0.15  
a. Depending 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 (see 7.2.2).
b There shall be at least 0,015 % of a grain-refining element present. Aluminium is also one of these elements. The minimum content of 0,015 % applies to soluble
aluminium, this value is regarded as attained if the total aluminium content is at least 0,018 %; in case of dispute the soluble aluminium content shall be determined.
 
Grade S550QL Mechanical Property
Thickness Yield Tensile Elongation Min Impact Energy
 
S550QL mm Min Mpa Mpa Min  % -40 30J
3<t≦50 550 640-820 16 -40 30J
50<t≦100 530 640-820 16 -40 30J
100<t≦150 490 590-770 16 -40 30J
The manufacturer reserves the right to change the chemical composition.
Typical Applications
Heavy road vehicles: chassis, dumper bodies. Cranes construction: booms of mobile cranes.
Structural steelworks: bridges, bridge components, components for offshore structures.
Pressure vessels: fixed and transportable storage tanks, vessels. Power plants:
Penstocks, spiral cases. Materials handling: lifting and mobile equipment.
Mining and earthmoving equipment: roof supports. Agricultural equipment and trailer
 
Equivalent Steel Plate Grade
EN 10025-6 EN 10137-2 1995 EU 137 1983 Germany France Sweden
S460Q 1.8908 S460Q 1.8908 FeE 460 V -    
S460QL 1.8906 S460QL 1.8906 FeE 460 V KT TStE 460 V    
S460QL1 1.8916 S460QL1 1.8916     E 460T  
S500Q 1.8924 S500Q 1.8924 FeE 500 V TStE 500 V   2614
S500QL 1.8909 S500QL 1.8909 FeE 500 V KT EStE 500 V   2615
S500QL1 1.8984 S500QL1 1.8984     E 500T  
S550Q 1.8904 S550Q 1.8904 FeE 550 V TStE 550 V    
S550QL 1.8926 S550QL 1.8926 FeE 550 V KT EStE 550 V    
S550QL1 1.8986 S550QL1 1.8986     E 550T  
S620Q 1.8914 S620Q 1.8914 FeE 620 V StE 620 V    
S620QL 1.8927 S620QL 1.8927 FeE 620 V KT TStE 620 V    
S620QL1 1.8987 S620QL1 1.8987   EStE 620 V E 620T  
S690Q 1.8931 S690Q 1.8931   StE 690 V   2624
S690QL 1.8928 S690QL 1.8928 FeE 690 V KT TStE 690 V E 690T 2625
S690QL1 1.8988 S690QL1 1.8988   EStE 690 V    
S890Q 1.8940 S890Q 1.8940        
S890QL 1.8983 S890QL 1.8983   TStE 890 V    
S890QL1 1.8925 S890QL1 1.8925   EStE 890 V    
S960Q 1.8941 S960Q 1.8941        
S960QL 1.8933 S960QL 1.8933   TStE 960 V E 960T  
 
Unitedsteel Mill Supply High strength steel plate, and have various stock size, If you require high strength steel plate. Please contact us by Email sales@unitedsteelplate.com to contact us.