Gazprom recently said it had completely suspended gas supplies to Bulgarian Gas company and Polish Oil and Gas Company (PGNiG) because it was not being paid in rubles. Russia said it would resume gas supplies after it agreed to pay for them in rubles.
Bulgaria and Poland announced Monday that they have received a notice from Russia to suspend natural gas supplies from Monday.
Russian President Vladimir Putin on March 31 signed a presidential decree to settle gas trade with "unfriendly" countries and regions in rubles. When the new rules took effect on April 1, Presidential press secretary Dmitry Peskov said Russia would not immediately "cut off gas" to Europe, as the cost of gas supplies starting April 1 should be settled in the second half of April or May.
Because of the ever-changing international situation, the supply and prices of international bulk Alloy 718 are still very uncertain.
In the aerospace or petrochemical industries, these important industries are related to the national economy and people's livelihood. The trustworthy Inconel718 is always a frequently mentioned term. Indeed, in the process of using the popular Alloy 718, with the progress of industrial technology and the development of urban economy, this alloy material has been applied to more and more industries, playing an increasingly important role.
Several important steps in the production process of Alloy 718
1. Warm up
Cost-effective Alloy 718 workpieces require the most meticulous surface cleaning before and during heating to keep surfaces clean. Alloy 718 alloy will become very brittle if the heating environment contains phosphorus, lead or other low melting point metals. Impurities come from marking paint, chalk, etc. The sulfur content of fuel should be very low. For example, the impurity content of liquefied gas and natural gas will be less than 0.1%, the sulfur content of city gas should be less than 0.25 grams per cubic meter, and the content of petroleum gas will be less than 0.25 grams per cubic meter. Sulphur content below 0.5 percent is the best effect.
The oxide near the weld of the cost-effective Alloy 718 alloy is more difficult to handle than the stainless steel, so at this time it is necessary to use a fine abrasive belt for grinding, before pickling in a mixed acid of nitric acid and hydrofluoric acid, Also use sandpaper to remove oxides or use a salt bath for reasonable pretreatment.
Machining of reliable Alloy 718 must be carried out after solution treatment, and all aspects must be considered, especially the work hardening of the material, but it is very important that Alloy 718 is more suitable for low surface cutting.
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As the duration of the conflict between Russia and Ukraine grows, its impact on commodities is widening amid the tug-of-war. Recently, European and American sanctions against Russia have been issued one after another. In response, Russia has taken advantage of its role as an important supplier of many energy and commodities, requiring exports of commodities, including energy, grain, metal, and wood, to "unfriendly" countries to be settled in robles. Therefore, it is expected that the price of the Alloy 718 will continue to increase.
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