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Six-strand Billet Continuous Casting Machine automated as per the 1st and 2nd level with capacity of 600.000 thousand tons per year is designed to produce cast squares (100, 120, 125, 130 and 150 mm) and round billets (the diameter are 120, 130, 150, 180 mm) with open and shrouded stream casting. Th e caster is equipped with an electro magnetic stirrer enabling to produce high quality billets of carbon and low-alloy steel grades.
Molten steel is produced in the Electric Arc Furnace with subsequent treatment in the Ladle Furnace. If required to produce steel corresponding to specific requirements to content of gases, sulfur and non-metallic inclusions steel shall be vacuum treated. To obtain low concentrations of carbon steel is subjected to vacuum-oxygen decarburization in VD/VOD.
Standard/ chemical composition |
Steel grade |
GOST 380 (???? 2651) |
Ct0-Ct5cp, Ct1-Ct5pc, St3Gcp, Ct5Gpc |
GOST 1050 |
10-55 |
GOST 19281 |
09G2, 09G2D, 14G2, 17G1C |
GOST 4543 |
15G-45G, 10G2-40G2, 20?, 40?, 35?G2, 18?GT, 30?GCA |
GOST 5781 |
35GC |
GOST 14959 |
55C2, 60G |
GOST 3-009 |
St 52.3, St 44.2, St 37.0, St 37.2 |
ASTM A29/A29M |
1006-1055, 1513-1541, ?10?? ????? (full range), 13?? (full range), 40?? (full range) |
ASTM A615/?615? |
Gr40, Gr 60 |
ASTM A36/A36M |
A36 |
BS 970 |
080A15, 080M15, 070M20, 070M55, 080A30, 080M30,
080M40, 080A42, 150M19, 150M36, 045A10, 045M10 |
EN 10083-1 |
C22?-C45? |
EN 10084 |
16MnCr5 |
DIN ?N 10025 |
RSt 37-2, RSt 44-2, RSt 50-2, RSt 60-2, S275J0 |
GOST 2246 |
??-07G1??? |
TU U 14-16-130, TU U 14-16-139 |
??-07?1??? |
TU U 27.1-00190319-1327 |
70??D, 80??D |
As per specifications |
28MnB5, 30MnB5 |
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Technical requirements to square billet geometry, allowable deviations. |
Billet section, mm |
100?100, 120?120, 125?125, 130?130, 150?150 |
Billet length, mm |
6000-12000 |
Side, mm |
± 3,0 |
Length, mm |
±100 |
Straightening |
Maximum 5 mm per meter of length, excluding 150 mm long end parts |
Rhomboidity, mm |
Maximum 8 |
Cut slope, mm |
Maximum 10 |
Angular radius, mm |
Maximum 8 |
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Surface quality: |
Continuous cast square billets are supplied in as-cast condition without surface treatment. Billet surface shall be free from teeming arrest, flaws and visible cracks.
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Billet end quality: |
Laps of oxidized metal resulting from gas cutting at CCM are allowed on billet end faces. Visible shrinkage holes resulting from torch cutting at CCM are not allowed on billet end faces.
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Marking: |
One billet end shall have colour identification code and label sticker, the other end shall be hot/cold stamped with indication of heat number and steel grade.
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Packing: |
6-12 meter long continuous cast billets are packed in bundles of 4-10 t weight. Three weather-resistant plastic tags are fixed onto bundles (with a thermal stamping) specifying the customer, purchase order number, steel grade, heat number, size, bundle number and weight and country of destination.
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