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Welcome to Hemaokang Steel (Shandong) Co., Ltd. – your trusted partner in high-quality steel products. Since our establishment in 2025, we have rapidly grown into a global supplier with annual export values exceeding US$50 million. Our ASTM A36 Hot Rolled Carbon Steel Rod in 6mm-200mm diameter is meticulously manufactured to deliver exceptional strength and reliability for structural support applications. Backed by ISO9001 certification and a dedicated team of 51-100 professionals, we ensure every rod meets the highest standards of quality and consistency.
Our black carbon steel bars are hot-rolled to achieve a uniform microstructure and excellent mechanical properties. They are ideal for load-bearing structures, frames, reinforcement, and general fabrication. The 6mm-200mm diameter range offers flexibility for various engineering requirements, while the black surface indicates the natural mill scale finish that provides basic corrosion resistance and easy weldability.
Key Features & Technical Specifications
- Material Grade: ASTM A36 – a widely recognized carbon steel standard for structural purposes.
- Diameter Range: 6mm, 8mm, 10mm, 12mm, 16mm, 20mm, 25mm, 32mm, 40mm, 50mm, 60mm, 80mm, 100mm, 120mm, 150mm, 200mm (other sizes available upon request).
- Surface Finish: Black (hot-rolled mill scale), suitable for painting, welding, and further processing.
- Length: Standard 6m or 12m, or custom lengths to your project needs.
- Mechanical Properties: Tensile strength 400-550 MPa, yield strength ≥250 MPa, elongation ≥20%.
- Processing: Hot-rolled, easy to cut, drill, weld, and machine.
| Diameter (mm) | Tolerance (mm) | Typical Length (m) | Weight per meter (kg) |
|---|---|---|---|
| 6 | ±0.2 | 6 | 0.222 |
| 12 | ±0.3 | 6 | 0.888 |
| 25 | ±0.4 | 6 | 3.85 |
| 50 | ±0.6 | 6 | 15.4 |
| 100 | ±1.0 | 6 | 61.7 |
Why Choose Our ASTM A36 Carbon Steel Rods?
- Superior Strength: Meets ASTM A36 yield and tensile requirements, ensuring reliable performance in structural applications.
- Excellent Weldability: Low carbon content (≤0.26%) facilitates easy welding without preheating for most thicknesses.
- Versatile Applications: Suitable for building frames, bridges, towers, machinery bases, supports, and general fabrication.
- Cost-Effective: Hot-rolled process offers economical pricing without compromising quality.
- Customizable Options: We provide cutting, threading, and surface treatment services upon request.
At Hemaokang Steel, we understand that every project has unique demands. Our inventory covers a wide range of diameters from 6mm to 200mm, and we can also supply non-standard sizes with short lead times. Our quality control team performs rigorous inspections including chemical analysis, tensile testing, and dimensional checks to ensure compliance with ASTM A36 specifications.
Trust & Reliability
With an annual export value of US$50 million to US$100 million, Hemaokang Steel has established a strong presence in markets across North America, South America, Europe, Southeast Asia, Africa, Oceania, and the Middle East. Our ISO9001 certified management system guarantees consistent quality from raw material sourcing to final delivery. Located in Liaocheng, Shandong – a major steel production hub in China – we benefit from advanced logistics and competitive pricing. When you choose our ASTM A36 hot rolled carbon steel rods, you are choosing a product backed by professional expertise, global reach, and a commitment to customer satisfaction. Contact us today for a quote or to discuss your project requirements!
Frequently Asked Questions (FAQ)
-
What is the maximum length available for these rods?
Standard lengths are 6m and 12m. Custom lengths can be produced according to your order quantity. -
Can these rods be used for outdoor structures?
Yes, the black mill scale provides basic corrosion resistance. For outdoor use, we recommend applying a protective coating or paint. -
Do you offer cutting services?
Yes, we can cut the rods to your specified lengths. Additional charges may apply for small quantities. -
What is the tolerance on diameter?
Tolerances follow ASTM A36 standards. For example, 6mm-25mm rods have ±0.2-0.4mm tolerance; larger rods have tighter tolerances as per the table above. -
Is this material suitable for welding?
Absolutely. ASTM A36 has excellent weldability. It is commonly used in welded structures without special procedures. -
Do you provide physical or chemical test certificates?
Yes, we can provide mill test certificates (MTC) with each shipment, confirming mechanical properties and chemical composition. -
What packaging options are available for export?
Rods are bundled with steel straps, wrapped in waterproof paper or plastic, and packed in containers. Custom packaging is available. -
Can I request a sample before placing a bulk order?
Certainly. We can provide small samples for evaluation. Please contact our sales team for details.
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