Amstrong® Ultra 690QL

A High Yield Strength steel for welded and weight – saving structures

Amstrong® Ultra 690QL is a high strength quenched and tempered steel dedicated for structure and enables to make weight savings thanks to a minimum yield strength of 690 N/mm².

Thanks to its exceptional purity rate (very low sulphur and phosphorous contents), and its adapted chemical analysis, the Amstrong® Ultra 690QL steel is easy to shape and to weld.

Standards

Amstrong® Ultra 690QL fulfills the requirements of S690QL according to EN 10025-6 standard, last edition.

Chemical analysis

Typical values (weight %)

C Mn Si Cr Mo P S V Ni Cu Al
.20 1.60 .50 1.50 .60 .02 .010 .080 1 .50 .02 to .05

Carbon Equivalent

Thickness range – mm (*) C.Eq
<= 20 (.78″) <= .45
20.01 – 120 (.79″ – 4.73″) <= .55
120.01 – 150 (2.37″ – 4.73″) <= .58

Mechanical properties

Thickness Y.S. 0.2 N/mm²(ksi) UTS N/mm²(ksi) Elongation A 5%
<= 50 mm (2″) 690 (100) 770 – 940 (112 – 136) 14
50<th650 (94)760 – 930 (110 – 130)14
100<th630 (91)710 – 900 (103 – 130)14

For more technical details :

 

Amstrong® Ultra 690QL

Download the complete datasheet


Technical data and information are to the best of our knowledge at the time of publication. However, they may be subjected to some slight variations due to our ongoing research programmes. Therefore, we suggest that information be verified at time of enquiry or order. Furthermore, in service, real conditions are specific for each application. The data presented here are for the purpose of description only, and can be considered as guarantees only when written formal approval has been provided by our company. Industeel reserves the right to change its product range at any time without prior notice.