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High strength steels

High strength (690MPa)

Amstrong® Ultra 690QL1

Amstrong® Ultra 690QL1

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

Amstrong® Ultra 690QL1 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 690QL1 steel is easy to shape and to weld.

Standards

EE 690 TIIK4, according to NFA 36 – 204 standard Amstrong® Ultra 690QL1 according to EN 10025 – 6 standard

Chemical analysis

Typical values (weight %)

C Mn Si Cr Mo P S V Ni Cu Al
.20 1.60 .50 1.50 .60 .02 .02 .080 1.35 .50 .02 to .05

Carbon Equivalent

Thickness range – mm (*) C.Eq
<= 20 (.78″) <= .45
20.01 – 60 (.79″ – 2.36″) <= .55
60.01 – 120 (2.37″ – 4.73″) <= .58
120.01 – 150 (4.74″ – 5.9′) <= .61

Mechanical properties

Thickness Y.S. 0.2 N/mm²(ksi) UTS N/mm²(ksi) Elongation A 5%
<= 10 mm (0.4″) 690 (100) 770 – 940 (112 – 136) 14
10<th690 (100)770 – 940 (112 – 136)14
50<th650 (94)760 – 930 (112 – 134)14
100<th630 (91)710 – 900 (103 – 130)14

For more technical details :

 

Amstrong® Ultra 690QL1

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.

Download

Amstrong® 690 QL1 datasheet
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