Чугун англ

Cast Iron

JSC "Vostokmashzavod" is a reliable producer and supplier of cast basic pig iron. The advantage of our cast iron is its low content of harmful impurities: sulfur, phosphorus, manganese, copper, chromium, titanium. The quality of our cast iron fully complies with GOST standards. All our products undergo rigorous testing to ensure compliance with standards. We guarantee high reliability. Our production capacity of cast basic pig iron is monthly 50 000MT based of 3 Blast Furnace. Depending on its use, cast iron is divided into remelting cast iron, which is used for steel production (as well as partially for foundry production), and foundry cast iron, which is used exclusively for casting.

Foundry cast iron (GOST 4832-95)

They are supplied in ingots for further remelting in foundry workshops. Foundry cast iron is smelted with a higher coke consumption from a charge with sufficient silica content. This cast iron is used for the production of shaped cast iron casting. Foundry cast iron is soft and gray in color. The carbon in its composition is mostly in a free state in the form of graphite. Since silicon promotes the release of carbon in the form of graphite, the silicon content in foundry cast iron reaches 3.7%, and the manganese content, which promotes the release of carbon in the form of cementite, is allowed up to 1.3%. The cast iron grades are L1 (3.2…3.6% Si); L2 (each subsequent grade contains 0.4% less silicon); L3, L4, L5, L6 (1.2…1.6% Si), as well as magnesium-refined (with nodular graphite) grades LR1 (3.2…3.6% Si); LR2, LR3, LR4, LR5, LR6 and LR7 (0.8…1.2% Si). Based on the mass content of manganese, phosphorus, and sulfur, foundry cast iron, like remelted cast iron, is divided into groups, classes, and categories. Cast irons of category I of grades LR1 - LR7 contain no more than 0.005% S. The mass content of carbon in both remelted and foundry cast iron is 3.2…4.5%.

The weight of an ingot is 12±2 kg. Dimensions are 228x191x76 mm.

pig iron

Pig iron (GOST 805-95) grades P1 and P2 are used in steel making; grades PL1 and PL2 - in foundry production; phosphorus iron grades PF1, PF2, PF3 (0.8...2% P) and high-quality grades PVK1, PVK2 and PVK3 are also used. Grades of lower numbers contain more silicon (up to 1.2%), grades of higher numbers - no more than 0.5% Si. According to the mass content of manganese, cast iron is divided into groups, phosphorus - into classes, sulfur - into categories. High-quality cast iron contains no more than 0.025% S and 0.05% P. In pig iron, all the carbon is in a bound state in the form of iron carbide. This cast iron has a white color and a characteristic metallic luster when fractured. The structure consists of pearlite, ledeburite and excess cementite, so the cast iron is characterized by high hardness, brittleness, low strength and labor intensity of mechanical processing. Therefore, pig iron is used to produce steel. In addition, pig iron is used to make castings of parts with subsequent annealing to make malleable cast iron.

Pig iron is made in pigs without pinches, with one or two pinches. The thickness of the pig at the pinching point is no more than 50 mm.
Pig weight - 15±2 kg Dimensions - 200 x 150 x 150 mm.