Strenx® 700 E/F
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Strenx® 700 E/F high-strength structural steel
Strenx® 700 E/F is a high-strength structural steel with a minimum yield strength of 650-700 MPa depending on thickness. The steel offers superior bendability, surface quality and weldability with excellent HAZ strength and toughness. The exceptional consistency within a plate is guaranteed by close tolerances and high impact toughness provides for good resistance to fractures. Strenx® 700 E meet or exceed the requirements of the standard EN 10025-6 where Strenx® 700 E conforms to grade S690QL and Strenx® 700 F conforms to grade S690QL1. Typical applications include demanding load-bearing structures.
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Dimension Range
Strenx® 700 E is available in plate thicknesses of 4.0 – 160.0 mm and Strenx® 700 F is available in plate thicknesses of 4.0 - 130.0 mm. Both grades are available in widths up to 3350 mm and lengths up to 14630 mm depending on thickness. More detailed information on dimensions is provided in the dimension program.
Mechanical Properties
For transverse test pieces.
Impact Properties
1) Unless otherwise agreed, transverse impact testing according to EN 10025-6 option 30 will apply. For thicknesses between 6 - 11.9 mm, sub-size Charpy V-specimens are used. The specified minimum value is then proportrional to the cross-sectional area of the specimen compared to a full-size specimen (10 x 10 mm).
Chemical Composition (ladle analysis)
The steel is grain refined. *) Intentional alloying elements.
Carbon Equivalent CET(CEV)
Thickness
Tolerances according to Strenx® Thickness Guarantees.
Strenx® Guarantees meet the requirements of EN 10029 Class A, but offers narrower tolerances.
Length and Width
According to SSAB’s dimension program. Tolerances conform with EN 10029 or to SSAB’s standard after agreement.
Shape
Tolerances according to EN 10029.
Flatness
Tolerances according to Strenx® Flatness Guarantee Class C, which are more narrow than EN 10029 Class N.
Flatness tolerances for Strenx® 700 F are guaranteed after cutting with laser, plasma or waterjet.
Surface Properties
According to EN 10163-2 Class A, Subclass 3.
Delivery Conditions
The delivery condition is Quenched and Tempered. The plates are delivered with sheared or thermally cut edges. Untrimmed edges after agreement.
Delivery requirements can be found in SSAB’s brochure Strenx® Guarantees or on www.ssab.com.
Fabrication and Other Recommendations
Welding, bending and machining
Recommendations are found in SSAB’s brochures at www.ssab.com or consult Tech Support.
Strenx® 700 E/F has bending guarantees according to Strenx® Bending Guarantees Class A. Strenx® 700 E/F has obtained its mechanical properties by quenching and subsequent tempering. The properties of the delivery condition cannot be retained after exposure to temperatures in excess of 580ºC.
Appropriate health and safety precautions must be taken when welding, cutting, grinding or otherwise working on this product. Grinding, especially of primer coated plates, may produce dust with a high particle concentration.
Ready to upgrade?
Upgrading from Strenx® 700 E/F to Strenx® 900 E/F means you can improve the performance and reduce the weight of your equipment. The increase in yield strength by almost 30% allows for a substantial increase in the equipment’s load-bearing capacity. Get in touch with our steel specialists at SSAB Tech Support or SSAB Knowledge Service Center for an update on upgrading.