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2 094 520

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IPC

(21) (22)

Application

95117687/02, 1995-10-16

(22)

Actual filing date

1995-10-16

(45)

Published

1997-10-27

(72)

Inventor

Beljakova V.I.Shal'Kevich A.B.Chepkin V.M.Zubarev G.I.Frejdin Eh.I.

(73)

Holder

Vserossijskij Nauchno-Issledovatel'Skij Institut Aviatsionnykh MaterialovOtkrytoe Akktsionernoe Obshchestvo

ALLOYED STEEL Russian patent published in 1997 - IPC

Abstract RU 2094520 C1

FIELD: metallurgy, particularly, compositions of construction alloyed steel for power details (for example, shafts and gears) which surface is strengthened by chemical and heat treatment (for example, calorization, nitrocalorization and nitriding); machine building. SUBSTANCE: steel comprises, mas. %: carbon, 0.14-0.21; manganese, 0.4-0.7; silicium, 0.6-0.9; chromium, 2.6-3.0; nickel, 1.0-1.5; molybdenum, 0.4-0.6; tungsten, 1.0-1.4; vanadium, 0.35-0.55; niobium, 0.08-0.22; cerium, 0.01-0.05; lanthanum, 0.01-0.03; neodymium, 0.01-0.03; ferrum, the balance. Strength of desired steel is 140 kgf/mm², its impact viscosity being 8 kgcm/cm². EFFECT: improved quality. 3 tbl

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RU 2 094 520 C1

Authors

Beljakova V.I.

Shal'Kevich A.B.

Chepkin V.M.

Zubarev G.I.

Frejdin Eh.I.

Dates

1997-10-27—Published

1995-10-16—Filed