We specialize in the manufacture and supply of a wide variety of High Tensile Plates. Our High Tensile Alloy Steel Plates are used in different engineering and mechanical applications. These plates possess good formability and are used in civil engineering and industrial machinery and in automobile industries for making lightweight automobiles.
A steel plate product suitable for low temperature applications with nominal yield strength of minimum 350 MPa and guaranteed impact properties at -20°C. We offer these High Tensile Plates at market leading prices.
Different Names :
S690QL, S700MC, Dillimax 690T, Maxil 690, Naxtra 70, Supralsim 690, Weldox 700E, QstE 690 TM HSLA Plates DIN EN S690 Q / S 690 QL / S690 QL1.
Application :
All these High Tensile Plates are widely used for Crane, Crane Booms, Dump Truck, Weldox, Steel for structure & Steel Plate Bridge.
C | Si | Mn | P | S | Cr | Mo | Ni | Al |
0.20 max | 0.80 max | 1.70 max | 0.0.20 max | 0.005 max | 1.50 max | 0.70 max | 2.0 max | 0.015 max |
In addition: Ti or/and V or/and Nb.
The manufacturer reserves the right to change the chemical composition.
Plate thickness mm | Re MPa | Rm MPa | A % |
< 50 | 690 | 770 - 940 | 14 |
> 50 ? 100 | 650 | 760 - 930 | 14 |
> 100 | 630 | 710 - 900 | 14 |
Forming
Optim 700 MC steel is suitable for cold forming.
Minimum permissible bending radius, bending angle 90°
Minimum permissible inside bending radius mm.
Thickness mm (2.5) - 3 | (3) - 4 | (4) - 5 | (5) - 6 | (6) - 7 | (7) - 8 | (8) - 10 |
3.5 | 5 | 6 | 8 | 12 | 14 | 16 |
Heat Treatment Recommendations
Heat Treatment | Temperature °C | Treatment time & manner of cooling |
Stress relieving | 550 – 580 (target 560) | 2 minutes/mm thickness, min. 30 minutes. Slow cooling in the furnace |
Too high temperature and long treatment time may weaken mechanical properties.
Copyright. © 2014 by Eckhardt Steel and Alloys All rights reserved.
Design & Promoted by www.rathinfotech.com | pipingmart.com