TMT Rebar B500B

Description

1. Product Overview

TMT Rebar B500B is a high-strength thermo-mechanically treated steel reinforcement bar, engineered to deliver superior yield strength (500 MPa minimum) and exceptional ductility for critical concrete structures. Its primary industrial application lies in large-scale construction—bridges, high-rise buildings, dams, and industrial foundations—where structural integrity under seismic and heavy-load conditions is non-negotiable. The key value proposition is a unique combination of weldability, bendability, and corrosion resistance, reducing on-site rejection rates by up to 40%. Strategically, B500B rebar is indispensable for infrastructure projects that must balance safety, lifecycle cost, and compliance with international building codes (Eurocode 2, ASTM A615).

2. Key Specifications & Technical Characteristics

• Material Composition:

  • Carbon (C): 0.20–0.25%

  • Manganese (Mn): 0.80–1.20%

  • Silicon (Si): 0.15–0.30%

  • Phosphorus (P): ≤ 0.035%

  • Sulfur (S): ≤ 0.035%

  • Micro-alloys (V, Nb) for grain refinement

• Grade & Purity Standard:

  • Grade: B500B per EN 10080 (equivalent to B500B UKCARES, ISO 6935-2)

  • No surface impurities, rust scale ≤ 5% by visual standard

• Physical Characteristics:

  • Form: Ribbed / deformed bar

  • Diameters: 6 mm to 40 mm

  • Color: Dark grey / mild mill scale

  • Density: 7.85 g/cm³

  • Yield strength (Reh): ≥ 500 MPa

  • Tensile strength (Rm): ≥ 540 MPa

  • Elongation (A%): ≥ 16% (original gauge length)

  • Bend/rebend test: Pass 180° without cracks

• Packaging Options:

  • Tightly bound bundles with color-coded grade tags

  • Standard bundle weight: 2.0 MT, 2.5 MT, or 3.0 MT

  • Anti-corrosion oil coating (optional, upon request)

  • Nylon slings for crane unloading

• Shelf Life:

  • Indefinite when stored indoors, ≤ 12 months exposed to industrial coastal climate (salt spray accelerates surface rust)

3. Core Industrial Applications

• Primary Industries:

  • Heavy civil engineering & infrastructure

  • Precast concrete manufacturing

  • Energy sector (wind turbine foundations, nuclear containment)

  • Port & marine structures

• Specific Operational Use Cases:

  • Seismic-resistant frames in high-rise towers

  • Tunnel lining and underground metro stations

  • Bridge girders and abutments requiring high fatigue resistance

  • Industrial flooring and crane beam supports

• Why B500B outperforms alternatives (e.g., mild steel bars, lower-grade rebar):

  • Ductility advantage: High elongation (≥16%) enables bending on-site without pre-heating, reducing labor costs by 15–20%.

  • Weldability: Low carbon equivalent (CEV ≤ 0.45%) prevents hydrogen-induced cracking – critical for site welding.

  • Fatigue life: 30% longer service life under cyclic loading compared to Fe415/460 grades.

  • Corrosion margin: Tempered martensite outer layer slows chloride ingress – proven in coastal project data (20+ years without spalling).

4. Competitive Advantages

• Quality Consistency:

  • ISO 9001:2025-certified mills with in-line eddy current testing.

  • Batch-level tensile, bend, and chemistry certificates (EN 10204 Type 3.1).

• Supply Reliability:

  • Stock availability: 50,000 MT monthly production capacity.

  • Lead time: 14 days from order to FOB loading (sea) or 7 days rail to EU borders.

• Logistics Capability:

  • Multi-port shipping (Rotterdam, Dubai, Shanghai, Houston).

  • Break-bulk or containerized (20’ flat rack for diameters > 32 mm).

• Price Competitiveness:

  • Direct mill pricing – no trader markup.

  • Volume discount scale: 2% off for 500 MT+, 5% off for 2000 MT+.

• Sustainability & Environmental Benefits:

  • EPD available (Environmental Product Declaration).

  • Up to 85% recycled scrap content, EAF + rolling mill route.

  • Carbon footprint: 0.42 kg CO₂/kg rebar (vs industry avg 0.65).

• Technical Support:

  • Free weld procedure qualification (WPS) template for site engineers.

  • BIM-ready Revit families for 12 standard diameters.

5. Commercial & Supply Information

• Minimum Order Quantity (MOQ):

  • Bulk (standard): 20 MT (mixed diameters allowed, max 4 sizes per order)

  • Sample order: 2 MT (single diameter, subject to availability)

• Loading Capacity per Container:

  • 20’ standard dry container: 22 MT max (bars ≤ 12 m length – requires end-door access)

  • 20’ flat rack container: 24 MT (for bars 12–15 m length)

  • Bulk / break-bulk vessel: Up to 25,000 MT per shipment