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Hemaokang Steel (Shandong) Co., Ltd. is proud to offer the Factory Bundle Reinforced Steel Rebar 14mm HRB500E Seismic Grade for High-Rise Buildings, a premium construction material engineered for demanding structural applications. As a dedicated manufacturer based in Liaocheng, Shandong, we combine advanced production technology with rigorous quality management to deliver rebar that meets the exacting requirements of modern seismic-resistant construction. This 14mm HRB500E rebar is specifically designed to absorb and dissipate energy during dynamic loads, providing the necessary ductility and strength to safeguard tall structures and their occupants.
Our manufacturing process integrates controlled thermomechanical processing (optional), ensuring a fine-grained microstructure that delivers an outstanding balance of yield strength and elongation. Every bundle reflects our commitment to consistency and traceability, with each heat number and production lot recorded for complete transparency. We understand that in high-rise construction, every reinforcement bar must perform reliably under peak conditions; therefore, we produce a product that delivers predictable, repeatable mechanical performance, straight from the factory to your site.
Key Features & Technical Superiority
- Seismic Grade HRB500E: Exceeds standard HRB500 mechanical values with stringent requirements for yield strength (≥500 MPa), tensile strength (≥630 MPa), and a yield ratio range ensuring plastic deformation capability during earthquakes.
- 14mm Diameter Precision: Rolled to tight dimensional tolerances, maintaining consistent cross-sectional area and rib geometry for reliable bond with concrete.
- Excellent Ductility: Superior elongation at break facilitates concrete crack control and provides ample warning before structural failure.
- High Bond Strength: The innovative rib pattern optimizes anchorage and significantly reduces splice lengths, contributing to more efficient design and material usage.
- Uniform Material Consistency: Process-controlled from billet selection to finishing, ensuring isotropic properties along the rebar length.
- Weldable Quality (optional on request): Chemical composition tailored to permit site welding under controlled conditions, offering flexibility for connection design.
- Bundled Delivery: Reinforced coils or straight cut lengths securely bundled for safe and efficient transport and crane handling.
Technical Specifications (Typical Values)
| Parameter | Value / Range |
| Nominal Diameter | 14 mm |
| Yield Strength (ReL) | ≥ 500 MPa |
| Tensile Strength (Rm) | ≥ 630 MPa |
| Elongation (A) | ≥ 16% |
| Max. Total Elongation (Agt) | ≥ 9% |
| Bendability | Cold bend test passes 180° without cracking |
| Standard Length | 6m / 9m / 12m (custom cut available) |
| Surface Condition | Deformed (ribbed), rust-free, oil-free as standard |
| Relevant Standard | GB/T 1499.1 (also available: DIN 488, ASTM A615, optional) |
The 14mm HRB500E grade carries the designation 'E' specifically meaning it has upper limits on the yield ratio (yield/tensile) and lower limits on total elongation, making it suitable for plastic design analysis in seismic zones. This enhances your structure's ability to undergo significant inelastic deformation without brittle failure—a critical requirement for high-rise buildings in earthquake-impacted regions. The rebar also features a micro-alloyed chemistry (including vanadium or niobium, optional) to preserve strength and toughness even after aging or forming.
Advantages For End-Users
- Reduced Structural Weight: Higher allowable stress levels may allow you to optimize column and beam sections, reducing overall dead load and foundation costs.
- Simplified Joint Detailing: The high bond strength decreases required lap lengths, enabling easier bar placement in congested areas and reducing rebar congestion in beam-column joints.
- Future Proofing: Designed to meet current and anticipated seismic code provisions, giving building owners confidence in long-term structural resilience.
- Enhanced Site Safety: Consistent dimensioning improves fit-up at the jobsite, minimizing time spent resolving clashes and re-doing work.
- Lower Life-Cycle Cost: Superior durability under dynamic loading means less maintenance and inspection downtime over the decades.
About Hemaokang Steel: Operating since 2025 with an annual export value between US$50 Million and US$100 Million, our factory brings fresh capacity combined with mature management systems. We employ 51-100 skilled professionals who manage everything from raw material inspection to final load-out. Serving markets across North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, East Asia, Western Europe, Central America, Northern Europe, Southern Europe, and South Asia, we have built a reputation for export readiness and shipping punctuality from Qingdao port. Our commitment to quality is externally recognized by our ISO9001 certification, covering production, testing, and delivery processes. Choose our rebar for your next high-rise project, and benefit from direct factory pricing, full traceability, and responsive technical support. Contact us today with your quantity and cut-length requirements for a tailored quotation.
Frequently Asked Questions
1. Can you supply custom lengths other than standard 6 or 12 meters?
Yes, we offer custom cutting services upon request. We can supply lengths from 4m to 14m, depending on your design drawings and shipping container constraints. Please provide your specific length schedule when requesting a quote.
2. What is the minimum order quantity for a bundle?
Our standard factory bundle usually contains 2 to 5 tons depending on diameter. For 14mm HRB500E, we typically ship in bundles of approximately 2 tons. The minimum order quantity for a trial order is one 20-foot container, but this can be discussed for project-specific needs.
3. How does HRB500E differ from ordinary HRB500 rebar?
The 'E' suffix indicates additional seismic-specific requirements. This includes a constrained yield ratio (usually between 1.25 and 1.40), a minimum total elongation of 9%, and stricter maximum limits for internal defects. These criteria ensure the rebar can undergo large, repeated inelastic cycles under earthquake loading.
4. Is this rebar weldable?
HRB500E bars are generally weldable under controlled conditions, using preheating and proper welding consumables. The chemical composition is adjusted carefully to maintain carbon equivalent within reasonable limits. If welding is critical for your project, please specify your process and we will provide material certificates showing appropriate CEV values.
5. What types of quality certificates will be provided?
We issue a Mill Test Certificate in accordance with ISO standards, and our products are manufactured under an ISO9001 quality management system. The certificate documents chemical composition, mechanical properties, and the corresponding standard for each batch. Independent third-party inspection (such as SGS or BV) is also available upon request.
6. How long does delivery take from Qingdao port?
For regular sizes like 14mm HRB500E, our lead time is 15-25 days after receipt of the deposit or confirmed Letter of Credit, depending on your destination port and vessel schedule. The Qingdao port ensures efficient and reliable loading for all major regions.
7. Can you provide material with corrosion protection for harsh environments?
The base rebar is standard black steel with natural oxidation. However, we can arrange options such as epoxy coating or galvanization through our partner facilities, as optional value-added services. Please suggest your performance requirements and we will evaluate technical feasibility and cost.
8. Do you offer a price advantage for large-volume orders or yearly contracts?
Yes, we provide tiered pricing structures for volumes above 500 tons per month or for annual supply agreements. Since we are the manufacturer, we maintain negotiation flexibility based on schedule consistency and payment terms. Please contact our export department to discuss quarterly or annual offers.
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