Ultra 890 – High Strength Steels

Short Description:

A High Yield Strength steel for welded and weight – saving structures Bozhong? Ultra 890 is a quenched and tempered steel for structure with higher strength. Thanks to a minimum yield strength of 890 N/mm2 (130 ksi), Bozhong? Ultra 890 enables to make weight savings or support higher stresses and thus carry higher payload. With a good quality of steel making process, an adapted chemical analysis (low alloying content) and an excellent precision in our fabrication process (thickness tolerance,...


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

Bozhong? Ultra 890 is a quenched and tempered steel for structure with higher strength. Thanks to a minimum yield strength of 890 N/mm2 (130 ksi), Bozhong? Ultra 890 enables to make weight savings or support higher stresses and thus carry higher payload.

With a good quality of steel making process, an adapted chemical analysis (low alloying content) and an excellent precision in our fabrication process (thickness tolerance, uniform mechanical characteristics), Bozhong? Ultra 890 is easy to machine, to bend and to weld which simplify production and maintenance.

By using Bozhong? Ultra 890 and thus thinner plate in welded structures, you limit preheating conditions, you decrease quantity of consumables, welding time and so production costs.

Standards
Bozhong? Ultra 890 fulfills the requirements of S890QL according to EN 10025-6 standard, last edition.

Chemical Analysis
Typical values (weight %)

C Mn Si Cr Mo P S V Ni Cu Al
0.19 1.50 0.50 0.70 0.70 .020 .010 .10 1.6 .30 .04 to .080

Carbon Equivalent

Thickness range – mm (*) C.Eq
6 – 50 (.24″ – 2″) ≤ .59
50.1 – 125 (2″ – 4.92″) ≤ .70

Mechanical Properties

Thickness Y.S. 0.2 N/mm2(ksi) UTS N/mm2(ksi) Elongation A 5%
6 – 50 (.24“ – 2“) 890 (130) 940 – 1100 (137 – 160) 11
50.1 – 125 (2“ – 4.92“) 830 (120) 880 – 1100 (128 – 159) 11

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