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DUROSTAT A2

DUROSTAT A2 provides a potential for high hardness and therefore high levels of resistance to mechanical wear. This steel is used for components subjected to high mechanical wear and abrasion: loading and transport equipment, excavator parts, machine components for road construction, preparation, crushing, silos.

The technical terms of delivery apply for plate thicknesses from 8 - 100 mm.

Production process

DUROSTAT A2 steels are produced via the LD-route.

Chemical composition, mass in %

C max	Si max	Mn max	P max	S max	Cr max	V max
0.75-0.85	0.65	2.10	0.030	0.025	0.60	0.20

As-delivered condition

The plates are delivered in as-rolled condition (hot-rolled, untreated), since usually heat treatment such as quenching or tempering is carried out on the finished parts.

Mechanical properties

Standard values for as-rolled condition (plate thickness 20 mm)

Yield strength N/mm2	Tensile strength N/mm2	Fracture elongation L0 = 5,65 √ S0 %	Hardness HB
650	1,050	10	320

Achievable hardness (following quenching in water)

62 - 66 HRC.

Quality test

The heat analysis is provided as proof of the chemical composition.

Tolerances and surface finish

Unless otherwise agreed, tolerances according to EN 10029 (thickness tolerance according to class A, flatness tolerance according to class N) and surface finish according to EN 10163- A1 are valid.

Marking

In general, marking consists of:

• voestalpine symbol
• Steel grade designation
• Heat number
• Plate number

Material testing certificate

Type of certificate according to EN 10204 must be agreed upon ordering.