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