Special steel large round billet continuous casting production line

Hot, glowing steel round bars moving along a factory production line.

Our special steel large round billet continuous caster utilizes the core equipment technology of a two-strand, two-machine continuous caster designed and constructed by Danieli. It can produce large cross-section round billets ranging from Ø500mm to Ø1300mm. This production line incorporates internationally advanced technologies including full-process protected casting, tundish electromagnetic induction heating, automatic start-up, eddy current mold level automatic control, automatic mold powder feeding robots, strand electromagnetic stirring, billet heating, laser length measurement, and automatic spray marking robots. It represents a world-class continuous casting line that integrates advanced technology and intelligent operation.

With an annual designed capacity of 300,000 tons, the product line primarily targets new energy sectors such as large offshore wind power and large-scale petroleum service valve bodies. The steel grades produced include high-end manufacturing steels such as wind power ring steel, high-pressure boiler tube steel, oil and gas pipe billet steel, oil and gas forging steel, engineering machinery steel, tool and die steel, energy steel, and industrial bearing steel.

SPECIAL STEEL LARGE ROUND BILLET

Category Representative Steel Grades Billet Specification (mm) Applicable Standard
High Strength Low Alloy Structural Steel Q355, Q420 ø500-1300 GB/T 1591-2018
A105, S355NL (Q355NE), LF2 Technical Agreement
Quality Carbon Structural Steel 10, 20, 35, 45 GB/T 699-2015
Alloy Structural Steel 20Mn2, 40Mn2, 275Mn, 40B, 45B, 20MnTiB, 20Cr, 40Cr, 20CrMnTi, 30CrMnTi, 20CrMoA, 42CrMoA, 35CrMoV, 20CrMnMo, 30CrMnSiA, 40CrNiMo GB/T 3077-2015 ASTM A29/A29MTechnical Agreement
27CrMo, AISI 4130, AISI 4145H
Steel Billet for High-Pressure Pipes 10G, 20G, 15CrMoG, 4130, 34CrMo4, 12Cr1MoVG, P11, P12, P22, P91 Technical Agreement
Steel for Wind Power S355NL (Q355NE), 42CrMo4, 42CrMo, 40Cr, 18CrNiMo7-6 Technical Agreement
Steel Billet for Oil Casing & Tubing, Pipeline Steel 37Mn5, 36Mn2V, 40Mn2V, 29Mn4, 29Mn5, 28Mn2, 29Mn2, 32Mn2, 29MnCr, 32CrMo4, 27MnCr42, 14Mn, 15Mn3, 15MnNb, 14Mn2Nb, 14MnVNb, 14Mn2VNbTi Technical Agreement
Tool and Die Steel H13, 9Cr3Mo, 9Cr5Mo, 21CrMo10 Technical Agreement
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