30MnB5

30MnB5 steel sheets are boron alloy steels specifically designed for heat treatment applications requiring high hardness and excellent wear resistance after quenching. The addition of boron significantly improves hardenability, allowing 30MnB5 steel sheets to achieve outstanding mechanical properties while maintaining good machinability and formability before heat treatment. They are therefore widely used for components subjected to severe mechanical loads and abrasive conditions.

Sidastico supplies cut-to-size 30MnB5 steel sheets in a wide range of thicknesses and dimensions. Precision cutting ensures excellent dimensional accuracy, minimizes material waste and improves production efficiency. Every order is supplied with an EN 10204 3.1 certificate, guaranteeing full material traceability and compliance with European quality standards.

The material combines good fabrication properties in the delivery condition with excellent performance after heat treatment. It is suitable for laser cutting, plasma cutting, bending and conventional fabrication processes before quenching. After heat treatment, it provides high surface hardness, excellent wear resistance and long service life even in demanding operating conditions.

Typical applications include agricultural blades, wear parts, earthmoving equipment, industrial machinery components, cutting tools and highly stressed mechanical parts. It is particularly suitable wherever high mechanical strength, abrasion resistance and long-term durability are essential.

With extensive stock availability and advanced processing capabilities, Sidastico supplies cut-to-size 30MnB5 steel sheets with fast delivery times, consistent quality and reliable technical support for demanding industrial applications.

Technical Characteristics:

Standard

EN ISO 683-2

Identification Number

1.5531

Classification

Special steel

Type

Alloy Steel

Rolling State

AR – As rolled

Brief Description

Boron steel with high hardenability. Ideal for applications subject to wear, abrasion and high mechanical stress where high hardness and strength after heat treatment are required.

Applications

Agricultural machinery, blades, discs, knives, wear-resistant components, working tools, hardened structural parts, earth-moving machinery and industrial equipment.

Standard Coil Stock Range

30MnB5 1000 1250 1500
2
2,5
3
4
5
6
8
10
12

Chemical Composition

Regulatory standard

Elemento Valore
C (%) 0,27-0,33
Si (%) ≤ 0,40
Mn (%) 1,15-1,45
P (%) ≤ 0,025
S (%) ≤ 0,035
AI (%)
Nb (%)
Ti (%)
V (%)
Mo (%) ≤ 0,10
Cu (%)
Elemento Valore
Cr (%) ≤ 0,40
Ni (%) ≤ 0,40
N (%)
B (%) 0,0008-0,0050
Nb+Ti+V (%)
Cr+Mo+Ni (%)
Ni+Cr+Cu+Mo (%)
C.E.V. (%)

C.E.V. (%) = C+(Mn/6)+[(Cr+Mo+V)/5]+[(Ni+Cu)/15]

Mechanical Properties

For 30MnB5 grade, the chemical composition and, where applicable, the material delivery condition are certified. The final mechanical properties depend on the subsequent quenching heat treatment, which allows high levels of hardness, mechanical strength and wear resistance to be achieved.

Tolerances

Tolerances on the dimensions and on the shape                                  UNI EN 10051
Surface condition                                                                                       UNI EN 10163-2

Certifications

EN10204-3.1

DISCLAIMER: SIDASTICO S.p.A. declines any and all liability for the accuracy and precision of the information herein and reserves the right to modify any part without advanced notice.

You might also be interested in:

QUENCHING AND TEMPERING STEEL
STEEL FOR HIGH TEMPERATURES

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