SU1315512A1 - Steel - Google Patents

Abstract

The invention relates to the field of ferrous metallurgy, in particular to the composition of steel intended for cast parts subjected to impact abrasive wear. The purpose of the invention is to increase the wear resistance of steel. The goal is achieved by the fact that the steel additionally contains vanadium in the following ratio of components, wt.%: Carbon 0,6-, G; manganese 6-11; silicon 0.2-1.0; nitrogen 0.01-0.65; titanium 0.03-0.1; vanadium 0.05-0.3; iron else. The use of steel will improve the operational durability of the parts made from it. 2 tab. F (L with: 00 ate SP

Description

113

The invention relates to metallurgy, in particular, to a composition of steel intended for cast parts that are subjected to intense impact abrasive wear.

The aim of the invention is to increase the wear resistance of steel.

The chemical composition of the investigated steels is given in table. 1, the properties of steel - in table. 2

To simulate the conditions of impact and abrasive wear, samples are tested in a ball mill during grinding of crushed stone. Tests have shown that the wear resistance of the proposed steel is higher than that of the known by an average of 21%.

Composition of steel

The content of components, wt.%

C j Mp Si Ti N V S P Fe

one

1.1

6.0 1.0 0.03 0.65 0.05 0.05 0.10

0.6

0.8

0.5

1.2

e0, 7

11, 0 8.0 12

five

0.2 0.65 0.1 1.2

0.1

0.07 0.15 0.01

0.01

0.35

0.00

0.8

9.0 0.6 0.07 0.5

Note. Compositions 4 and 5 with extreme values

components.

table 2

55122

Claims (1)

Invention Formula Steel containing carbon, manganese, silicon, titanium, nitrogen, iron, 5 characterized in that, in order to increase wear resistance, it additionally contains vanadium in the following ratio of components, wt.% :. . O 15 Carbon Manganese Silicon Titanium Nitrogen Vanadium Iron 0.6-1.1. 6-1 0.2-1.0 0.03-0.1 0.01-0.65 0.05-0.3 Else Table 1 Rest 0.3 0.15 0.04 0.03 0.05 0.05 0.05 0.05 0.1 0.1 0.1 0.1 0.05 0.1