URSSA 690. High elastic limit steel

For high-strength lightweight structures such as cranes, platforms, dump trucks, manipuldores.

More details

Soldering:  Excellent
Folded:  Excellent
Transformation:  Excellent
Mechanization:  Excellent

General specifications*

C ≤ 0,20. Mn ≤ 2,00. Si ≤ 0,90. P ≤ 0,03. S ≤ 0,02. Nb ≤ 0,08. Ti ≤ 0,30. B ≤ 0,004. Al ≤ 0,015.
Rm690/950 N/mm2. ReH360/690 N/mm2. A ≥ 15 %

Characteristics

Because of its compositions, it has a bainitic fine-grained low in carbon structure. To obtain a good cool formability it fits just in a low content of sulfur and on the addition of alloy elements results favorable sulfur formations.

Typical applications

For all structures in which upon the resistance and lose of weight.
As typical applications, we have, among others, telescopic cranes, air platforms, concrete pumps, telescopic handlers, dump trucks and moving lorry trailers.

Welding/Soldering

Properly adequate to soldering by manual or automatic system, considering general technical requirements. Consider here a reasonable warm assistance limit.

Folded

Thickness(mm)2,5/34568≥10
Width≤ 15004,5791117
Width>1500From 6mm:
2 times density Perp. Lamín.
3 times density Perp. Lamín.

Heat treatment

Good compliance.
It does not seem appropriate for heat or mechanization treatment over 580ºC, because may change mechanical properties.

Mechanical characteristics

Good compliance. It does not seem appropriate for heat or mechanization treatment over 580ºC, because may change mechanical properties.

Mechanical characteristics

Pulling resistance N/mm2

Elastic limit N/mm2


Lengthening
Lo = 5 do

Cylinder diameter (*)
Bend test

Resilience -20 ºC
e≤70 mm: ≤ 750/950690 min.15% min.< 6 mm 2a ≥ 6 mm 3a34 J/cm2 , min
e>70 mm: ≥ 690/930360 min.15% min.< 6 mm 2a ≥ 6 mm 3a34 J/cm2 , min
(*) Sample thickness, the bending angle 180ºC en each case.

Stock Program

  • Large range of densities and formats until 150mm thickness.
  • Check our stock in the warehouse for each supply, as if delivery period for formats not available.
  • We also serve parts of sheet, cut in multiples lengths of 1000mm maintaining the width.
  • Oxycut of tailor-made pieces from 6-8 mm thickness.

* The specifications are illustrative. For each supply we offer a certificate with the datum of the shipment delivered.

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Oxycut on demand

Oxycut on demand

We cut your steel plates starting from your plans with absolute accuracy. An added service which allows collecting the product ready to be used.


Special steel plates

Special steel plates

Wide stock in steel plates with a thickness ranging from 1.5mm to 400mm and different types. Ask us for more information.