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Carbon equivalent value CEV of quenched and tempered EN 10025 S690QL high strength steel plate

EN 10025 S690QL steel plate is high strength steel with quenched and tempered heat treatment. The grade designation of  EN 10025 S690QL is as below:
S = Structural steel
690 = minimum yield strength 690MPa
Q = Quenching and tempering
L = Low notch toughness testing temperature

Quenched and tempered EN 10025 S690QL high strength steel plate is used in a wide variety of engineering applications where strength is important.

Carbon equivalent value CEV of quenched and tempered EN 10025 S690QL high strength steel plate (ladle analysis):

Grade Steel Number Maximum CEV in % for nominal product thickness in mm
≤ 50 > 50 ≤ 100 > 100 ≤ 150
S690QL 1.8928 0.65 0.77 0.83

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

CEV Weldability
<0.35 Excellent
0.36 - 0.40 Very Good
0.41 - 0.45 Good
0.46 - 0.50 Fair
>0.50 Poor

BBN steel is world class high strength steel supplier. For any information about EN 10025 S690QL steel, such as carbon equivalent value CEV of quenched and tempered EN 10025 S690QL high strength steel plate, EN 10025 S690QL steel chemical composition, EN 10025 S690QL steel plate mechanical property, quenched and tempered EN 10025 S690QL steel specification, EN 10025 S690QL high strength steel data sheet, S690QL high strength steel plate price, please feel free to consult BBN steel.

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