S690QL1 Quenched and Tempered Structural Steel
Processing of S690QL1 High Strength Steel Plate
S690QL1 Cold Forming
S690QL1 steel plate is gasteizcup com suitable for cold-forming adhering to https://carbohealth.com/complications-of-depression.html a bending or folding radius > 4 times steel plate thickness longitudinal and Causes Phobias > 3 times transverse to rolling direction. A subsequent stress relief annealing is possible up to a temperature of 580 ºC (degree C).
Minimum recommended inside bending radius
Axis of bend in transverse direction
Axis of bend in longitudinal direction
Hot-forming above 580°C is possible. A subsequent quenching and tempering has to be carried out according to the conditions of delivery.
Drilling with cobalt-alloyed high-speed steels HSSCO. Cutting speed should be approximately 17 - 19 m/min. If HSS drills are used, cutting speed should be approximately 3 – 5 m/min.
The temperature of the material should be at least RT for flame-cutting. In addition, the following preheating temperatures are recommended for certain plate thicknesses: For plate thicknesses over 40mm, preheat to 100°C and for thicknesses over 80mm, preheat to 150°C.
S690QL1 steel is suitable for all current welding methods. The temperature of the material should be at least RT for welding. In addition, the following preheating temperatures are recommended for certain plate thicknesses:
20mm – 40mm: 75°C
Over 40mm: 100°C
60mm and over: 150°C
These indications are standard values only, in principle, indications of SEW 088 should be adhered to.
The t 8/5 times should be between 5 and 25 s, depending on the welding technique used. Should stress relief annealing be necessary for constructional reasons, this should be done in the temperature range of 530°C-580°C