Steel Rebar (Deformed Bars) Manufacturing & Export Buying Guide

Deformed Steel Rebars (also known as TMT bars or concrete reinforcing steel) are the primary reinforcing material for modern concrete structures, high-rise buildings, bridges, and infrastructure projects worldwide.

Understanding the manufacturing process, international grading systems, and container loading logic is essential for global buyers when sourcing high-quality steel rebars from China's premier steelmaking hub.

How Deformed Steel Rebars Are Manufactured

The production of high-strength structural rebars relies on advanced rolling mills and precise temperature control to achieve optimal yield strength, elongation, and weldability:

·Billet Reheating & Continuous Rolling: Prime steel billets (Q235/Q355/20MnSi) are heated to approx. 1,200°C and passed through a series of continuous rolling mill stands to form standard ribbed profiles (8mm−40mm).

·Thermo-Mechanical Treatment (TMT): Immediately after the final rolling pass, the hot bar undergoes rapid surface quenching with high-pressure water jets. This creates a tough martensitic outer layer while maintaining a ductile ferrite-pearlite core—giving the rebar superior seismic and shock resistance.

·Cooling & Shearing: Bars are air-cooled on automatic cooling beds, straightened, and sheared to standard export lengths (typically 5.8m, 6.0m, or 12.0m).

International Rebar Standards & Grade Comparison

Global construction projects require compliance with strict national building codes. We supply deformed steel rebars conforming to the following global standards:

Key Considerations when Sourcing Rebars from Tangshan, China

1, Earthquake-Resistant Grades (E-Grade Rebars)

For high-seismic zones (such as South America, Southeast Asia, and New Zealand), we offer HRB400E and B500E seismic-grade rebars. These bars feature guaranteed tensile-to-yield strength ratios ($\ge 1.25$≥1.25) to absorb heavy structural stress during earthquakes.

2, Custom Lengths for Container Loading

To minimize sea freight costs per ton:

· 20ft Containers: Bars are cut to 5.8m / 5.85m or bent into U-shapes (for 12m bars).

· 40ft Containers / Bulk Vessels: Straight 11.8m or 12.0m bundles are packed using high-tensile steel strapping.

Why Source Structural Steel with Runying Steel Group?

Based in Tangshan, China—the heart of global steel production—and operating near Tianjin Port, Runying Steel Group provides seamless export services for structural steel, steel pipes, and slitted steel products:

· Direct Mill Supply: Direct access to top-tier integrated steel mills ensures full Mill Test Certificates (MTC conforming to EN 10204 3.1).

· Strict Quality Inspection: Weight tolerance, rib dimensions, tensile strength, and bending tests are verified prior to loading.

· Competitive Freight Solutions: Fast vessel scheduling and container stuffing optimizations save your total landed cost.

Request a Direct Factory Price Quote

Inquiring about current steel rebar prices, shipping schedules, or mixed steel container loading? Contact our sales team today for prompt assistance:

· Email: admin@tsrysteel.com

· WhatsApp: +86 15176700707

· Website: http://www.tsrysteel.com