Rebar
High-Quality Rebar for Construction Excellence
Rebar (reinforcing bar) is a critical component in modern construction, providing tensile strength to concrete structures. Our premium rebar meets international standards and is trusted by engineers worldwide for its durability and reliability.
Product Specifications
- Material: Carbon steel, stainless steel, and epoxy-coated options
- Grades: 40, 60, 75 (ASTM A615), 420, 500 (BS 4449)
- Sizes: #3 (10mm) to #18 (57mm) diameter
- Lengths: 20ft (6m), 30ft (9m), 40ft (12m), or custom-cut
- Surface: Deformed for better concrete bonding
- Yield Strength: 40,000 psi to 75,000 psi
- Standards: ASTM A615, BS 4449, JIS G3112, GB1499
Technical Comparison Table
| Grade | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation (%) | Common Applications |
|---|---|---|---|---|
| 40 | 280 | 420 | 18 | Light structural work |
| 60 | 420 | 620 | 14 | General construction |
| 75 | 520 | 690 | 12 | Heavy-duty structures |
Rebar FAQ #1
What is the difference between deformed and plain rebar?
Deformed rebar has surface ridges or patterns that create mechanical bonds with concrete, significantly improving load transfer. Plain rebar (smooth surface) is rarely used today except for specific applications where slip is desired. The deformation pattern must meet specific standards regarding height, spacing, and consistency to ensure proper concrete adhesion.
Production Process
Our rebar undergoes rigorous quality control:
- Steel billet selection and inspection
- Heating to 1,200°C in a walking-beam furnace
- Hot rolling through a continuous mill
- Quenching and self-tempering (QST) process
- Precision cooling on the cooling bed
- Automated cutting to length
- Final inspection and bundling
Packaging Options
| Package Type | Weight Range | Bundle Diameter | Strapping Material |
|---|---|---|---|
| Standard Bundle | 2-3 tons | 1.2-1.5m | Steel bands |
| Mini Bundle | 1-1.5 tons | 0.8-1m | Plastic straps |
| Custom Pack | As required | Variable | Per request |
Rebar FAQ #2
How do I calculate rebar requirements for a project?
Accurate rebar calculation involves: 1) Reviewing structural drawings for bar sizes and spacing, 2) Measuring total linear footage of each bar size, 3) Adding 10-15% for overlaps and waste, 4) Converting length to weight using standard weight tables (e.g., #4 bar = 0.668 lb/ft). For complex projects, use the formula: (Total length in feet × weight per foot) ÷ 2,000 = tons required. Always consult with a structural engineer for critical projects.
Corrosion Protection Methods
- Epoxy Coating: Fusion-bonded epoxy layer (0.15-0.30mm thick)
- Galvanizing: Hot-dip zinc coating (85-300μm)
- Stainless Steel: 316LN or 2304 duplex grades
- MMFX: Microcomposite steel with enhanced corrosion resistance
- Cathodic Protection: Used with coated rebar in extreme environments
Rebar FAQ #3
What is the proper spacing for rebar in concrete slabs?
Standard slab rebar spacing depends on load requirements: residential slabs typically use #4 bars at 12-18" centers, commercial slabs may require #5 bars at 9-12" centers. The spacing should never exceed 3× the slab thickness (e.g., 6" slab max spacing = 18"). For driveways or heavy loads, place bars at 1/2 the slab thickness (e.g., 6" slab = 3" spacing). Always follow engineering specifications which consider live loads, subgrade quality, and concrete strength.
Quality Certifications
Our rebar meets the following international standards:
- ASTM A615 (USA)
- BS 4449 (UK)
- JIS G3112 (Japan)
- GB1499 (China)
- ISO 6935-2
- EN 10080
Shipping and Logistics
| Destination | Lead Time | Container Capacity | Max Bundle Size |
|---|---|---|---|
| North America | 3-4 weeks | 20-25 tons/40'HC | 3.5m length |
| Europe | 4-5 weeks | 22-28 tons/40'HC | 4m length |
| Middle East | 2-3 weeks | 18-23 tons/40'HC | 3m length |