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Help CenterHot Rolled Carbon Steel Round Bar With Mill Test Report 1045 20mm-200mm Diameter
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As a leading manufacturer from Hemaokang Steel (Shandong) Co., Ltd., we proudly present our Hot Rolled Carbon Steel Round Bar 1045 with a comprehensive Mill Test Report. Established in 2025, our company has rapidly grown to achieve an annual export value of US$50 million – US$100 million, serving clients across North America, South America, Europe, Asia, Africa, and Oceania. Our round bars are produced under strict ISO9001 quality management system, ensuring consistent mechanical properties and dimensional accuracy. With a diameter range from 20mm to 200mm, these bars are ideal for manufacturing shafts, bolts, gears, axles, and other structural components where strength and reliability are critical.
Our 1045 carbon steel round bar is engineered for high tensile strength and good wear resistance. The hot-rolled process provides a refined grain structure and excellent machinability, while the included Mill Test Report verifies chemical composition, mechanical properties, and heat treatment history. This makes our product suitable for applications in the automotive, construction, machinery, and oil & gas industries.
Key Features & Technical Specifications
- Material Grade: AISI 1045 (C45, 1.1191 equivalent) – Medium carbon steel with excellent strength-to-weight ratio.
- Diameter Range: 20mm – 200mm, with tight tolerances (±0.5mm for standard sizes, tighter on request).
- Length: Standard 6 meters or 12 meters; custom lengths available (cut-to-size service).
- Surface Finish: Black (as-rolled), turned, or ground finish – choose based on your machining needs.
- Heat Treatment: Supplied in as-rolled condition; normalized or quenched & tempered options available.
- Mill Test Report: Each batch is tested and certified per EN 10204 3.1 or ASTM A29, including ladle analysis, tensile test, and hardness.
| Property | Value (Typical) |
|---|---|
| Tensile Strength | 570 – 700 MPa |
| Yield Strength | ≥ 305 MPa |
| Elongation (%) | ≥ 16% |
| Hardness (HB) | 170 – 217 (as-rolled) |
| Carbon Content | 0.43 – 0.50% |
Why choose our 1045 round bar? Compared to lower carbon grades, 1045 offers higher strength and better wear resistance without sacrificing machinability. The hot-rolled process ensures a uniform microstructure, reducing internal stresses. Our Mill Test Report provides full traceability, which is essential for quality-critical applications. Furthermore, we offer flexible customization – from length cutting to surface treatment – to meet your specific production requirements.
Applications & Benefits to Customers
- Automotive & Transportation: Ideal for axles, transmission shafts, steering components, and tie rods.
- General Machinery: Used in gears, spindles, bolts, and machine tool parts.
- Construction & Infrastructure: Suitable for reinforcing bars, anchor bolts, and structural supports.
- Oil & Gas: Pump shafts, valve stems, and downhole tools benefit from the material’s strength and toughness.
By choosing our hot rolled carbon steel round bar, you gain consistent quality, reliable supply, and cost-effectiveness. Our quality control team performs dimensional checks, hardness tests, and chemical analysis on every production lot. The included Mill Test Report gives you peace of mind and simplifies your incoming inspection process.
Our Company Strength – Why Trust Hemaokang Steel?
Hemaokang Steel (Shandong) Co., Ltd. is a fast-growing steel supplier with a dedicated workforce of 51–100 employees. Our annual export volume of US$50 million to US$100 million demonstrates our capability to handle large-scale orders while maintaining short lead times. We export to over 15 major markets worldwide, including North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, East Asia, Western Europe, Central America, Northern Europe, Southern Europe, South Asia, and the domestic Chinese market. Our ISO9001 certification ensures that every step – from raw material procurement to final inspection – follows strict quality standards. We are located in Liaocheng, Shandong, a major steel production hub, which gives us access to high-quality raw materials and efficient logistics.
We believe in long-term partnerships and offer competitive pricing, flexible payment terms, and responsive customer service. Whether you need a small trial order or a large container shipment, we are ready to meet your requirements. Contact us today for a quotation or technical consultation – our team will provide you with the best solution for your project.
Frequently Asked Questions
-
What is the minimum order quantity (MOQ) for this product?
Our standard MOQ is 5 metric tons for hot rolled round bars. For smaller quantities, please contact us to discuss availability. -
How long does delivery typically take?
For standard diameters and lengths, delivery is usually 15–25 days after order confirmation. Custom sizes may require 25–35 days. -
Do you provide third-party inspection services?
Yes, we can arrange third-party inspection (e.g., SGS, BV) at the buyer’s cost. Our own Mill Test Report is always included. -
Can you cut the bars to specific lengths?
Yes, we offer cutting to your required length (e.g., 1m, 2m, 3m). Please specify when ordering. -
What packaging options are available?
Standard packaging is in bundles strapped with steel bands, or in wooden crates for smaller diameters. Seaworthy packing for export is included. -
Is the 1045 round bar suitable for induction hardening?
Yes, 1045 steel responds well to induction hardening. We can also supply in normalized or quenched & tempered condition upon request. -
Do you accept small trial orders?
Absolutely. We welcome sample orders to evaluate quality. Please contact our sales team for details. -
What payment terms do you offer?
We accept T/T, L/C, and other negotiable terms. For new customers, a 30% deposit is typically required.
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