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Help CenterRibbed Steel Bar 12mm 16mm 20mm HRB400 ASTM A615 Grade 60 for Concrete Reinforcement Construction
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At Hemaokang Steel (Shandong) Co., Ltd., we are proud to offer premium Ribbed Steel Bars in diameters of 12mm, 16mm, and 20mm, designed specifically for concrete reinforcement in demanding construction projects. Our products comply with both HRB400 (Chinese standard) and ASTM A615 Grade 60 (American standard), ensuring superior strength and ductility for structural applications. With an annual export value ranging from US$50 million to US$100 million and a dedicated team of 51–100 professionals, we guarantee reliable supply and consistent quality. Whether you are building bridges, highways, high-rise buildings, or industrial foundations, our ribbed steel bars provide the essential reinforcement to meet global construction standards.
Our ribbed bars are manufactured using advanced rolling technology, featuring a precise deformed pattern that enhances bond with concrete. The ribs improve mechanical anchorage, reducing slippage and increasing structural integrity. Each bar is tested for mechanical properties, chemical composition, and dimensional accuracy, backed by our ISO9001 certified quality management system. Below we present the key specifications and advantages of our products.
Key Features & Benefits
- Multiple Diameters: Available in 12mm, 16mm, and 20mm to suit various structural requirements. Custom diameters are available upon request.
- Dual Compliance: Meets HRB400 (Yield ≥ 400 MPa) and ASTM A615 Grade 60 (Yield ≥ 420 MPa), ensuring acceptance in both domestic and international markets.
- High Tensile Strength: Tensile strength ranges from 540 MPa (HRB400) to 620 MPa (Grade 60), providing excellent resistance to tensile forces.
- Excellent Weldability: Low carbon content and controlled chemical composition allow for easy welding without compromising structural integrity.
- Consistent Rib Geometry: Uniform rib height and spacing maximize bond strength with concrete, minimizing slip and improving load transfer.
- Corrosion Resistance: Optional epoxy coating or galvanized finish is available for harsh environments (customizable).
- Flexible Lengths: Standard lengths of 6m, 9m, or 12m, with custom lengths available upon request to minimize waste on site.
- Tested Quality: Each batch undergoes tensile testing, bend testing, and chemical analysis, with certificates provided.
Technical Specifications
| Parameter | HRB400 | ASTM A615 Grade 60 |
|---|---|---|
| Yield Strength (min) | 400 MPa | 420 MPa (60 ksi) |
| Tensile Strength (min) | 540 MPa | 620 MPa (90 ksi) |
| Elongation (min) | 14% | 9% (typical) |
| Bend Test | 180° without cracking | 180° without cracking |
| Chemical Composition (C, max) | 0.25% | 0.30% |
| Standard Length | 6m / 9m / 12m | 6m / 9m / 12m (customizable) |
| Surface Finish | Ribbed / Deformed | Ribbed / Deformed |
Our ribbed steel bars are widely used in reinforced concrete structures such as columns, beams, slabs, foundations, retaining walls, and precast elements. The deformed pattern improves the bond with concrete, reducing the risk of structural failure under heavy loads. With strict quality control from raw material sourcing to final packaging, we ensure that each bar meets the required mechanical properties and dimensional tolerances.
Why Choose Hemaokang Steel?
- Global Reach: Our products are exported to North America, South America, Europe, Southeast Asia, Africa, Oceania, the Middle East, and more.
- ISO9001 Certified: Our quality management system is certified, ensuring consistent product quality and process control.
- Large Production Capacity: With annual export value exceeding US$50 million, we can handle large-volume orders and deliver on time.
- Experienced Team: Our 51–100 employees include skilled technicians and sales professionals who provide technical support and after-sales service.
- Custom Solutions: We offer custom lengths, packaging options, and surface treatments (e.g., epoxy coating) to meet specific project requirements.
At Hemaokang Steel, we are committed to providing cost-effective reinforcement solutions without compromising on quality. Our ribbed steel bars are manufactured from high-grade billets and undergo rigorous testing. We invite you to experience the reliability of our products. Contact us today for a quotation or to discuss your project needs. Let us be your trusted partner in construction steel.
Frequently Asked Questions (FAQ)
Q1: What is the difference between HRB400 and ASTM A615 Grade 60?
A: HRB400 is a Chinese standard with a minimum yield strength of 400 MPa, while ASTM A615 Grade 60 is an American standard with a minimum yield strength of 420 MPa (60 ksi). Both are suitable for concrete reinforcement, but Grade 60 offers slightly higher strength. Our bars are manufactured to meet both standards, giving you flexibility.
Q2: Can you provide a Mill Test Certificate?
A: Yes, we provide a Mill Test Certificate (MTC) for each batch, including chemical composition and mechanical test results. The certificate is issued in accordance with ISO9001 requirements.
Q3: What is the standard length of the bars?
A: Standard lengths are 6m, 9m, and 12m. Custom lengths are available upon request to minimize waste at your job site.
Q4: Are these bars suitable for seismic zones?
A: Yes, our ribbed bars have good ductility and elongation properties (≥14% for HRB400), making them suitable for seismic-resistant structures. However, always check local building codes for specific requirements.
Q5: Do you offer surface treatment for corrosion protection?
A: Yes, we offer optional epoxy coating or hot-dip galvanizing for enhanced corrosion resistance in harsh environments. Please contact us for details and pricing.
Q6: What is the minimum order quantity (MOQ)?
A: Our MOQ for standard sizes is typically 25 metric tons per size. For trial orders or custom specifications, MOQ may be negotiable.
Q7: How is the packaging done?
A: Bars are bundled with steel straps, each bundle weighing 2–3 tons. Waterproof wrapping is available for sea freight. We can also pack in bulk or in containers according to your preference.
Q8: What is the delivery time?
A: For standard sizes and quantities, delivery time is typically 15–20 days after receiving the deposit. For large orders or special requirements, please allow 25–30 days. We will confirm the exact lead time in the sales contract.
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