HIGH-STRENGTH COLD-RESISTANT CAST IRON WITH SPHERICAL GRAPHITE Russian patent published in 2020 - IPC C22C37/04 

Abstract RU 2715931 C1

FIELD: metallurgy.

SUBSTANCE: invention relates to metallurgy, particularly to compositions of high-strength cold-resistant cast iron with spherical graphite for production of tubular piles operating in any climatic conditions, mainly in regions of Arctic regions and the Far North. High-strength cold-resistant cast iron with spherical graphite contains, wt%: carbon 3.85–4.05, silicon 2.7–3.3, manganese 0.2–0.5, chromium up to 0.05, magnesium 0.03–0.06, calcium 0.002–0.007, aluminum 0.003–0.01, zirconium 0.01–0.1, boron 0.005–0.007, sulfur to 0.022, phosphorus to 0.03, nickel 0.01–0.20, samarium 0.1–0.3, cobalt 0.002–0.12, iron – the rest.

EFFECT: increased impact viscosity of high-strength cold-resistant cast iron with spherical graphite at negative temperatures.

1 cl, 2 tbl

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RU 2 715 931 C1

Authors

Aleksandrov Nikolaj Nikitevich

Andreev Valerij Vyacheslavovich

Gushchin Nikolaj Safonovich

Dub Vladimir Semenovich

Nuraliev Fejzulla Alibala Ogly

Nuraliev Nurlan Fejzullaevich

Takhirov Asif Ashur Ogly

Stepashkin Yurij Andreevich

Dates

2020-03-04Published

2019-10-10Filed