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Application

2004119522/02, 2004-06-29

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Start date

2004-06-29

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Actual filing date

2004-06-29

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Published

2005-10-20

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Inventor

Bobylev M.V.Kulapov A.N.Stepanov N.V.Peshev A.D.Lamukhin A.M.Vodovozova G.S.Ziborov A.V.Lutsenko A.N.Ronzhina L.N.

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Holder

Obshchestvo S Ogranichennoj Otvetstvennost'Ju Inso"

MEDIUM-CARBON STEEL WITH IMPROVED WORKABILITY BY CUTTING Russian patent published in 2005 - IPC

Abstract RU 2262548 C1

FIELD: metallurgy.

SUBSTANCE: invention relates to steel used in making rod for shock-absorbers for cars. Steel with the improved workability by cutting comprises components taken in the following ratio, wt.-%: carbon, 0.42-0.52; manganese, 0.40-0.95; silicon, 0.17-0.37; chrome, 0.01-0.25; sulfur, 0.020-0.045; vanadium, 0.005-0.02; aluminum, 0.03-0.05; calcium, 0.001-0.010; nitrogen, 0.005-0.015; iron and imminent impurities, the balance. The ratio content of calcium and sulfur is calculated by the following dependence: calcium/sulfur ≥ 0.065. Steel can comprises the following components as impurities, wt.-%: nickel, 0.25, not above; copper, 0.25, not above; molybdenum, 0.10, not above; arsenic, 0.08, not above; phosphorus, 0.030, not above. Steel shows structure of lamellar perlite. Invention provides enhancing workability by cutting, complete penetration hardenability and bar rolled products of diameter up to 20 mm.

EFFECT: improved and valuable properties of steel.

3 cl, 2 tbl, 1 ex

Similar patents RU2262548C1

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MEAN-CARBON STEEL WITH ENHANCED WORKABILITY BY CUTTING	2004	Ugarov A.A. Bobylev M.V. Shljakhov N.A. Gontaruk E.I. Kulapov A.N. Lekhtman A.A. Stepanov N.V. Fomin V.I. Gofman V.A. Sidorov V.P. Korshikov S.P. Goncharov V.V.	RU2262547C1
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RU 2 262 548 C1

Authors

Bobylev M.V.

Kulapov A.N.

Stepanov N.V.

Peshev A.D.

Lamukhin A.M.

Vodovozova G.S.

Ziborov A.V.

Lutsenko A.N.

Ronzhina L.N.

Dates

2005-10-20—Published

2004-06-29—Filed