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Help CenterAISI 1045 Hot Rolled Carbon Steel Rod 8mm-150mm Diameter Construction Grade Round Bar
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Welcome to Hemaokang Steel (Shandong) Co., Ltd. – your reliable partner in carbon steel products. Our AISI 1045 Hot Rolled Carbon Steel Rod (8mm-150mm diameter) is engineered for construction and heavy-duty applications. With a robust annual export value of US$50-100 million and a dedicated team of 51-100 professionals, we deliver consistent quality and global supply chain reliability. This round bar combines medium carbon content with excellent tensile strength, making it a top choice for structural components, shafts, and machinery parts.
As a factory-direct supplier, we offer hot rolled AISI 1045 round bars in diameters ranging from 8mm to 150mm, with customizable lengths to meet your project specifications. Our ISO9001-certified production ensures strict adherence to dimensional tolerances and mechanical properties. Whether you need material for construction beams, automotive axles, or industrial rollers, this product provides the durability and machinability you require.
Key Features & Technical Specifications
- Material Grade: AISI 1045 – medium carbon steel with balanced strength and wear resistance
- Manufacturing Process: Hot rolled, ensuring refined grain structure and improved mechanical properties
- Diameter Range: 8mm – 150mm (available in standard and custom sizes)
- Surface Finish: Black (hot rolled) with mill scale; can be further processed (pickled, oiled, etc.)
- Length Options: 6m, 12m, or cut-to-length upon request
- Applications: Construction shafts, gears, bolts, studs, connecting rods, and general structural components
- Certification: ISO9001:2015, mill test certificates provided
- Packaging: Bundled with steel straps, waterproof wrapping, or as per customer requirement
Chemical Composition & Mechanical Properties (Typical)
| Element | Percentage |
|---|---|
| Carbon (C) | 0.43 – 0.50% |
| Manganese (Mn) | 0.60 – 0.90% |
| Phosphorus (P) ≤ | 0.040% |
| Sulfur (S) ≤ | 0.050% |
| Property | Value |
|---|---|
| Tensile Strength (MPa) | 570 – 700 |
| Yield Strength (MPa) | ≥ 305 |
| Elongation (%) | ≥ 16 |
| Hardness (HB) | 170 – 210 |
Product Advantages & Benefits for Buyers
- Cost-Effective: Direct mill pricing eliminates middleman markup, saving you up to 15% compared to distributors.
- Versatile Machinability: AISI 1045 is easily welded, drilled, and machined – ideal for custom fabrication.
- Wide Diameter Range: From 8mm thin rods to 150mm heavy bars, we cover all common construction and industrial needs.
- Consistent Quality: Every batch undergoes rigorous testing for chemical composition and mechanical properties – factory test reports included.
- Flexible Logistics: We ship globally via sea, rail, or truck, with average lead time of 15-25 days for standard orders.
- Custom Processing: Optional services like cutting, straightening, chamfering, and surface treatment (oiled, painted) are available.
Why Choose Hemaokang Steel?
Since our establishment in 2025, we have rapidly grown to serve clients across North America, South America, Europe, Africa, Oceania, and Asia. Our annual export value of US$50-100 million reflects the trust placed in us by global buyers. With ISO9001 certification and a dedicated team of 51-100 skilled professionals, we ensure every shipment meets the highest standards. Our location in Liaocheng, Shandong – a major steel hub – gives us access to premium raw materials and efficient logistics.
We invite you to experience the Hemaokang difference: reliable quality, competitive pricing, and responsive customer service. Whether you need a small trial order or a large contract, we are ready to support your project. Contact us today for a quote or technical consultation – let’s build together with confidence.
Frequently Asked Questions (FAQ)
Q1: What is the tolerance for diameter on these rods?
A: Standard hot rolled tolerance follows ASTM A29. For diameters 8-20mm: ±0.3mm; 20-50mm: ±0.4mm; 50-150mm: ±0.5mm. Custom tolerances can be negotiated.
Q2: Can you provide cut-to-length bars?
A: Yes, we offer custom cutting to any length from 1m to 12m. Please specify your required length when ordering.
Q3: Is this material suitable for heat treatment?
A: AISI 1045 responds well to quenching and tempering. Typical hardness after heat treatment can reach 30-40 HRC. We can provide pre-treated bars on request.
Q4: What is the minimum order quantity?
A: For standard diameters (8-100mm), MOQ is 1 ton. For larger diameters (100-150mm), MOQ is 2 tons. Smaller trial orders are available for sample testing.
Q5: How do you package the rods for export?
A: Bars are bundled with steel straps, wrapped in waterproof paper or plastic, and secured for container loading. Bare or coated options are available.
Q6: Do you provide mill test certificates?
A: Yes, each shipment is accompanied by a mill test certificate (MTC) showing chemical analysis and mechanical properties, as per ISO9001 standards.
Q7: What is the typical lead time?
A: For standard sizes in stock, 7-10 days. For custom production, 15-25 days depending on quantity and surface treatment.
Q8: Can you supply other grades like 1040, 1050, or 4140?
A: Yes, we have a wide range of carbon and alloy steel grades. Contact our sales team with your specific requirements.
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