MARTENSITE-AGEING STEEL AND PRODUCT THEREFROM

MARTENSITE-AGEING STEEL AND PRODUCT THEREFROM

FIELD: steelmaking. SUBSTANCE: steel contains following components, wt %: carbon 0.005-0.02, nickel 15-20.0, cobalt 11.5-13.5, molybdenum 3.5-5.0, titanium 0.5-2.0, aluminum 0.05-1.80, boron 0.001-0.005, rare-earth metals 0.001-0.010, iron and inevitable impurities, provided that (Ti+Al)/Co = 0.08+0...

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Hauptverfasser: SHLJAMNEV A.P, GLUKHOV N.P, SHIRJAEV D.A, KALITEEVSKIJ A.K, SOROKINA N.A, SHUBIN A.N
Format: Patent
Sprache:eng
Schlagworte:
ALLOYS
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
METALLURGY
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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creator SHLJAMNEV A.P
GLUKHOV N.P
SHIRJAEV D.A
KALITEEVSKIJ A.K
SOROKINA N.A
SHUBIN A.N
description FIELD: steelmaking. SUBSTANCE: steel contains following components, wt %: carbon 0.005-0.02, nickel 15-20.0, cobalt 11.5-13.5, molybdenum 3.5-5.0, titanium 0.5-2.0, aluminum 0.05-1.80, boron 0.001-0.005, rare-earth metals 0.001-0.010, iron and inevitable impurities, provided that (Ti+Al)/Co = 0.08+0.25 and Sigma(B+rare-earth metals) = 0.005-0.012. Steel may further contain 0.3-3.0% chromium. Products can be made from such steel in the form of stick up to 100 mm in diameter, sheet 1-5 mm thick, and seamless pipes with diameter 24 to 159 mm. EFFECT: improved strength characteristics, cold stamping ability, plasticity after strengthening heat treatment, and polishing ability. 4 cl, 2 tbl, 2 ex
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subjects ALLOYS
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
METALLURGY
TREATMENT OF ALLOYS OR NON-FERROUS METALS
title MARTENSITE-AGEING STEEL AND PRODUCT THEREFROM
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