SU1254053A1 - Steel composition - Google Patents

Description

f12540532

The invention relates to metal. In Table. Tables 1 and 2 show chemical metallurgy of alloys designed for the composition and mechanical properties for the manufacture of welded round link chains with a diameter of up to 28 mm with a tensile strength of 145 kgf / mm.

The invention is an increase in the strength and plastic properties of steel.

after quenching in water to a temperature of 5 hours and an hour and a half of tempering at 45 ° C with cooling in water.

In tab. 1 and 2 are the chemical composition and mechanical properties

after quenching in water to a temperature and one and a half hour tempering at 45 ° C with cooling in water.

Table 1

6125

7129 Known

105

Compiled by S. Derkacheva Editor L. Povkhan Tehred M. Khoda ich Corrector M. Demchik

Order 4690/31 Circulation 567 Subscription

WIAIPI USSR State Committee

. on grandfathers H9o6peTeHidl and discoveries 113035, Moscow, Zh-35, Raushsk nab. 4/5

Production and printing company, Uzhgorod, st. Project, 4

12540534

Continued table 2.

BUT

12.4 13

12

13 12.5

eight

Claims (1)

STEEL for welded round link chains containing carbon, manganese, silicon, nickel, chromium, titanium and iron, characterized in that, in order to increase strength and ductility, it additionally contains molybdenum and nitrogen in the following ratio of components wt.%: Carbon 0.22-0.28 Manganese 0.7-1.0 Silicon 0.17-0.37 Nickel 0.5-0.8 Chromium 0.5-0.8 Titanium 0.005-0.025 Molybdenum 0.15-0.25 Nitrogen 0.002-0.008 Iron Rest ί