SU661038A1 - Steel - Google Patents
SteelInfo
- Publication number
- SU661038A1 SU661038A1 SU772540492A SU2540492A SU661038A1 SU 661038 A1 SU661038 A1 SU 661038A1 SU 772540492 A SU772540492 A SU 772540492A SU 2540492 A SU2540492 A SU 2540492A SU 661038 A1 SU661038 A1 SU 661038A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- magnesium
- calcium
- steel
- nickel
- manganese
- Prior art date
Links
Landscapes
- Heat Treatment Of Steel (AREA)
Description
ной шихты, включающей лом, литники, возврат и т.д. Химические составы опытных сталей приведены в табл. 1. В процессе фракционной разливки в 50-ти килограммовые разливочные 1КОВШИ расплав обрабатывают добавками 0,1-0,4% комплексного модификатора, сзодержащего алюминий, никель, кальций , магний и РЗМ. Результаты испытаний на плотность склонность к межкристаллитной- коррозии в концентрированной азотной кислоте , механические и литейные свойст ва приведены в табл. 2. Повыи енный уровень всего комплекса свойств предлагаемой стали позвол ет рекомендовать ее дл июрокого промышленного применени вместо известной стали ЭЙ 654 Л дл изготовлени литых деталей арматуры, работающих в концентрированной азотной кислоте и в других менее агрессивных средах. При этом экономический эффект от внедрени предлагаемой стали ожидаетс за счет повышени качества отливок , увеличени их срока службы и уменьшени толщины стенок, что даст экономию дефицитной дорогосто щей стали. Существенным также вл етс снижение брака по литейным дефектам на 7-10%. Таблица.Noah charge, including scrap, sprues, return, etc. The chemical compositions of the experimental steels are given in table. 1. In the process of fractional casting in 50-kilogram pouring 1KOVSHI the melt is treated with additives of 0.1-0.4% of the complex modifier containing aluminum, nickel, calcium, magnesium and rare-earth metals. The test results on the density of the tendency to intergranular corrosion in concentrated nitric acid, mechanical and foundry properties are listed in Table. 2. The increased level of the entire complex of properties of the proposed steel allows it to be recommended for industrial use in place of the famous steel AY 654 L for the manufacture of cast reinforcement parts working in concentrated nitric acid and other less corrosive environments. At the same time, the economic effect from the introduction of the proposed steel is expected due to an increase in the quality of the castings, an increase in their service life and a decrease in the wall thickness, which will save expensive scarce steel. Also significant is the reduction in scrap for casting defects by 7-10%. Table.
8,025 не обнаружена8,025 not found
7,997 7.997
Таблица2Table 2
71,3 39,6 30,3 48,7 9,00 5071.3 39.6 30.3 48.7 9.00 50
70,8 34,5 .29,6 43,8 7,254570.8 34.5 .29.6 43.8 7.2545
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772540492A SU661038A1 (en) | 1977-11-01 | 1977-11-01 | Steel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772540492A SU661038A1 (en) | 1977-11-01 | 1977-11-01 | Steel |
Publications (1)
Publication Number | Publication Date |
---|---|
SU661038A1 true SU661038A1 (en) | 1979-05-05 |
Family
ID=20731707
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU772540492A SU661038A1 (en) | 1977-11-01 | 1977-11-01 | Steel |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU661038A1 (en) |
-
1977
- 1977-11-01 SU SU772540492A patent/SU661038A1/en active
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