RQT 701 Quenched and Tempered Steel Plate

RQT® 701 is one of the grades in the RQT® range of high strength quenched and tempered structural steel.

  • Manufactured by Tata Steel which is one of Europe's largest steel makers
  • Combines high yield and tensile strengths with good notch toughness and excellent weldability
  • The steel is very similar in its properties to the European steel specification EN 10025 S690QL

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Composition

Chemical Composition – RQT® 701

Content % (ladle analysis), maximum - plates from 8 mm to 130 mm thick.

CSiMnSPCr
0.20 0.50 1.60 0.010 0.025 1.00
Mo Nb V Ni Cu B
0.70 0.060 0.08 1.50 0.40 0.004

Carbon equivalent values

 Maximum Ladle CEV (%)
8 mm to 30 mm thick 0.43
over 30 mm to 40 mm thick 0.55
over 40 mm to 100 mm thick 0.59
over 100 mm to 130 mm thick 0.61

Properties

Mechanical Properties - RQT® 701.

  over 70 to 130 mm thick
Minimum Yield Strength (Mpa) 690 630
Tensile Strength (Mpa) 790 - 930 690 - 930
Minimum Elongation 50 mm Guage (%) 18 18
Minimum Average Impact Energy 30 J @ -40°C 30 J @ -40°C
Minimum Individual Impact Energy 21 J @ -40°C 21 J @ -40°C