Deformed Steel Rebar: Specifications, Grades, Applications and Export Guide

Deformed Steel Rebar: Specifications, Grades, Applications and Export Guide

Deformed steel rebar, also known as reinforcement bar, is ribbed steel bar designed for concrete reinforcement. With raised ribs on the surface, it creates strong bonding force with concrete to prevent cracks and structural separation. Rebar is an indispensable building material for global infrastructure projects, widely used in residential buildings, bridges, highways, railways, dams and industrial construction. High‑quality Chinese rebar is exported in large quantities to Southeast Asia, the Middle East, Africa, South America and other emerging construction markets.

1. Product Introduction & Features

Rebar is manufactured through hot‑rolling process. The transverse ribs on its outer surface greatly increase friction and adhesion between steel and concrete. It effectively bears tensile stress inside concrete structures and improves the overall strength and service life of buildings.

Compared with plain round bar, deformed rebar has far‑superior anchoring performance in concrete, making it the primary choice for reinforced‑concrete engineering.

2. Common Grades for Export

Chinese Standard (GB)

• HRB400 / HRB400E

• HRB500 / HRB500E

The suffix “E” stands for earthquake‑resistant grade, suitable for seismic‑risk zones and high‑safety‑standard projects.

International Equivalent Grades

• ASTM A615 Grade 40 / Grade 60 (USA market)

• B500B (European market)

• Fe500D (India, South‑Asia market)

• Grade 460, Grade 500 (Middle‑East & African markets)

3. Standard Specifications

• Common diameters: 8mm, 10mm, 12mm, 16mm, 20mm, 25mm, 32mm, 40mm

• Standard length: 12 meters / 9 meters

• Available form: Straight bars; coils available for small‑size rebar upon request

• Rib pattern: Two‑rib or four‑rib deformation pattern

• Tolerance: Dimension and weight deviation comply with corresponding national and international standards

4. Main Application Scenarios

• Residential & Commercial Buildings: Foundation, column, beam, floor slab and wall reinforcement

• Highway & Bridge Projects: Highway viaducts, road pavements, bridge decks, pier reinforcement

• Railway Construction: High‑speed rail subgrade, precast concrete sleepers

• Hydraulic Engineering: Dams, reservoirs, flood‑control projects, water‑channel structures

• Industrial Facilities: Steel‑structure factory foundations, warehouse, power‑plant construction

• Urban Infrastructure: Subway tunnels, sewage treatment plants, overpasses

5. International Standards & Export Documents

Our rebar can meet different regional engineering specifications:

• Chinese Standard: GB/T 1499.2‑2018

• American Standard: ASTM A615 / A706

• European Standard: EN 10080

• British Standard: BS 4449

Required Shipping Documents

1. Mill Test Certificate (MTC), including chemical composition and mechanical‑test results (yield strength, tensile strength, elongation)

2. Commercial Invoice, Packing List

3. Certificate of Origin

4. Third‑party inspection reports (SGS, BV, Intertek) on buyer’s request

HS‑Code reference: 721420

6. Packaging & Shipment

Rebar is bundled tightly for ocean transportation:

• Secured by high‑strength steel straps into bundles

• Each bundle attached with metal tag marking grade, diameter, length, heat number and batch number

• Markings can be customized according to buyer requirements

• Loading: 20GP / 40GP container or bulk break‑bulk vessel for large‑volume orders

7. Supplier Advantages & Services

As a professional deformed‑rebar exporter from China, we provide reliable construction‑grade reinforcement steel:

✅ Complete sizes and steel grades, including seismic‑resistant HRB400E, HRB500E

✅ Strict quality control of yield strength, tensile strength and elongation rate

✅ Competitive factory FOB and CFR pricing terms

✅ Flexible MOQ for trial orders and long‑term framework contracts

✅ Full set of export documentation support

If you are looking for a trusted rebar supplier, please send your required diameter, grade, quantity and destination port. We will offer our latest quotation quickly.

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