e-Mail : info@wearparts.ru

DUROSTAT B2

The grades of DUROSTAT B2 are boron alloyed, quenched and tempered steels, which are produced as fine-grain steels. The steels are mainly used for components of agricultural machines such as harrows and ploughs. Additional areas of use are wheel loader buckets, dump bodies or cut bars on front loaders.

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

Production process

DUROSTAT B2 steels are produced via the LD-route.

Chemical composition

mass in %
C max	Si max	Mn max	P max	S max	Altot. min	Cr max	Ti max	B min	B max
0.30	0.60	2.10	0.025	0.010	0.020	0.80	0.050	0.0005	0.0050

The steel is fine-grain melted and can contain microalloying elements such as Nb and V.

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 conditions (plate thickness 20 mm)

Yield strength N/mm2	Tensile strength N/mm2	Fracture elongation L0 = 5,65 √ S0 %	Hardness HB
400	650	20	200

Achievable hardness (following quenching in water)

48 - 52 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.