Steel Billet 150×150 mm | Export‑Grade Square Billet (3SP / 4SP / 5SP)

Product Overview

The 150×150 mm export‑grade steel billet is one of the most widely used and internationally recognized semi‑finished steel products, serving as the primary feed material for rolling mills producing rebar, angle bars, U‑channels, joists, wire rod, and a variety of structural and industrial steel sections. With a square cross‑section of 150×150 mm, this billet offers optimal weight, high structural integrity, and excellent rolling performance.

Thanks to its controlled chemical composition, clean surface quality, and compatibility with heavy rolling lines, the 150×150 billet is a preferred choice for steel manufacturers targeting domestic and export markets. The product complies with global standards and can be supplied with a Mill Test Certificate (MTC) for export shipments.

Technical Specifications

Section Dimensions

150×150 mm square cross‑section

Length Options

6 m or 12 m (based on customer request)

Section Type

Square Billet

Available Steel Grades

• 3SP
• 4SP
• 5SP

Reference Standards

GOST / ASTM / DIN (upon customer request)

Surface Quality

Free from cracks, scaling, surface defects, or internal imperfections

Production Method

Electric Arc Furnace (EAF) or Induction Furnace (IF), depending on the mill

Export Readiness

• Chemical analysis available
• MTC (Mill Test Certificate) available
• Suitable for land, rail, and sea transportation

Grade Comparison

3SP

Higher ductility; ideal for construction materials requiring good formability.

4SP

Balanced strength and flexibility; suitable for a wide range of rolling applications.

5SP

High strength; suitable for structural and industrial steel products.

Applications of 150×150 Steel Billet

• Production of various sizes of construction rebar
• Manufacturing angle bars and U‑channels
• Wire rod and steel wire production
• Ideal for medium and heavy rolling mills
• Production of industrial and structural steel components
• Export to regional, Middle Eastern, and Asian markets

Key Advantages

• Standardized 150×150 mm dimension widely used in global rolling mills
• Suitable for heavy rolling lines requiring high stability and strength
• High‑quality surface finish free from cracks and scale
• Controlled chemical composition ensuring reliable mechanical properties
• Fully export‑ready with MTC and optional chemical analysis
• Compatible with road, rail, and sea logistics