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2 262 547

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IPC

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Application

2004119524/02, 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

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.

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Holder

Otkrytoe Aktsionernoe Obshchestvo Ehlektrometallurgicheskij Kombinat"Obshchestvo S Ogranichennoj Otvetstvennost'Ju

MEAN-CARBON STEEL WITH ENHANCED WORKABILITY BY CUTTING Russian patent published in 2005 - IPC

Abstract RU 2262547 C1

FIELD: metallurgy.

SUBSTANCE: invention relates to steel used in making rods for shock-absorbers for cars. Steel with enhanced workability by cutting comprises components taken in the following ratio, wt.-%: carbon, 0.42-0.50; manganese, 0.50-0.80; silicon, 0.17-0.37; sulfur, 0.020-0.040; phosphorus, 0.001-0.030; aluminum, 0.03-0.05; calcium, 0.001-0.010; oxygen, 0.001-0.015; iron and imminent impurities, the balance. The following dependences are necessary: ratio oxygen/calcium = 1-4,5, and ratio calcium/sulfur ≥ 0.065. Steel can comprise the following impurities additionally, wt.-%: chrome, 0.25, not above; nickel, 0.25, not above; copper, 0.25, not above; molybdenum, 0.10, not above; arsenic, 0.08, not above; phosphorus, 0.035, not above; nitrogen, 0.015, not above being nonmetallic inclusions show bilayer structure as sulfide with oxide envelope. Invention provides enhancing workability of steel by cutting, provides complete penetration hardenability of bar rolled products of diameter up to 20 mm.

EFFECT: improved and valuable properties of steel.

3 cl, 2 tbl, 1 ex

Similar patents RU2262547C1

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MEDIUM-CARBON STEEL WITH ELEVATED CUTTING ABILITY	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.	RU2262549C1
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RU 2 262 547 C1

Authors

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.

Dates

2005-10-20—Published

2004-06-29—Filed