Data Sheets
S 690
MAXIL 690 Q / MAXIL 690 QL / MAXIL 690 QL1 DIN EN S 690 Q / S 690 QL / S690 QL1
Heavy road vehicles: chassis, dumper bodies. Cranes construction: booms of mobile cranes. Structural steelworks: bridge components, components for offshore structures. Pressure vessels: fixed and transportable storage tanks, vessels. Power plants: penstocks, spiral cases. Mining equipment: roof supports etc.
C
Si
Mn
P
S
Cr
Mo
Ni
Al
0.20max.
0.80max.
1.70max.
0.020max.
0.015max.
1.50max.
0.70max.
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
> 100
630
710 - 900
0°C
- 20°C
- 40°C
- 60°C
S690Q
Longitudinal
Transverse
40 J
30 J
27 J
S690QL
50 J
35 J
S690QL1
60 J
Tensile test and impact test (3 samples), every 40 t, or per heat treatment unit respectively.
Processing
The steel is suitable for cold-forming adhering to a bending or folding radius of > 4 times plate thickness longitudinal and > 3 times transverse to rolling direction. A subsequent stress relief annealing is possible up to a temperature of 580°C.
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.
Material with temperatures under 5°C and thicknesses ≤ 40mm should be preheated to RT. Plate thicknesses > 40mm should be preheated to 100°C, 80mm and over should be preheated to 150°C.
The steel is suitable for all current welding methods. In principle, preheating is not necessary for thicknesses up to 30mm.
The following preheating temperatures are recommended:
20mm – 40mm: 75°C
Over 40mm: 100°C
60mm and over: 150°C
Material with temperatures under 5°C should be preheated to RT for plate thicknesses < 20mm. Interpass temperature should be between 150°C and 225°C. These indications are standard values only, in principle,
in accordance of SEW 088 should be adhered to.
Depending on the welding method, the t 8/5 times should be between 5 - 25 s. If stress relief annealing should be necessary for constructional reasons, it should be in the temperature range of 530°C - 580°C.
Filler:
Welding Method
Type of Filler
Manual
FOX EV 85, FOX U 100 N DIN 8529, AWS A 5.5
OK 75.75
Böhler
ESAB
UP
U 100-UP, NiCrMo 2,5-UP//BB24 DIN 32522, AWS A 5.23
OK Autrod 13.44/OK Flux 10.62
MAG
70-IG/M21 AWS A 5.28
OK Autrod 13.29, OK Tubrod 14.03
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