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Help Center1045 Medium Carbon Steel Plate 12mm 25mm 50mm Hot Rolled for Machined Components
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Hemaokang Steel (Shandong) Co., Ltd. is a trusted supplier of high-quality carbon steel plates, with an annual export value of US$50 million – US$100 million and a dedicated team of 51–100 employees. Our 1045 Medium Carbon Steel Plate in thicknesses of 12mm, 25mm, and 50mm is hot-rolled and specifically engineered for machined components, offering excellent strength, wear resistance, and machinability. Whether you need precision parts, gears, shafts, or structural elements, this plate delivers consistent performance and reliability.
Manufactured under strict ISO9001:2015 quality management systems, our 1045 steel plates undergo rigorous testing to ensure uniformity in chemical composition and mechanical properties. The hot-rolled process provides a fine grain structure, making the material ideal for subsequent machining operations such as turning, milling, drilling, and grinding.
Key Features & Technical Specifications
- Material Grade: AISI 1045 / C45 / S45C – medium carbon steel with 0.43–0.50% carbon content.
- Thickness Options: 12mm, 25mm, 50mm (other thicknesses available upon request).
- Process: Hot rolled, as-rolled or normalized condition (optional).
- Surface Finish: Black oxidized, pickled, or oiled to prevent rust.
- Dimensional Tolerances: Meet ASTM A29 / JIS G4051 standards.
- Mechanical Properties: Tensile strength 570–700 MPa, yield strength ≥305 MPa (as-rolled).
- Hardness: Typically 170–210 HB, suitable for machining without excessive tool wear.
- Applications: Machined components – axles, bolts, connecting rods, couplings, gears, hydraulic parts, and general engineering.
Typical Mechanical Properties (As-Rolled)
| Property | Value |
| Tensile Strength | 570 – 700 MPa |
| Yield Strength | ≥ 305 MPa |
| Elongation | ≥ 16% (in 50mm) |
| Hardness (HB) | 170 – 210 |
Advantages for Machined Components
- Excellent Machinability: 1045 steel offers a balance of strength and ductility, allowing high-speed machining with minimal tool wear.
- Consistent Quality: Each plate is ultrasonically tested and verified for internal soundness, ensuring no hidden defects.
- Versatile Sizes: 12mm, 25mm, and 50mm thicknesses cover a wide range of component requirements; custom sizes are available on request.
- Heat Treatment Adaptability: Can be quenched and tempered to achieve higher hardness if needed for specific applications.
- Cost-Effective: Medium carbon steel provides a strong, durable material at a reasonable price compared to alloy steels.
Why Choose Hemaokang Steel?
Established in 2025, Hemaokang Steel (Shandong) Co., Ltd. has quickly become a reliable partner in the global steel market. With an annual export value of US$50–100 million and a workforce of 51–100 experienced professionals, we serve customers in North America, South America, Europe, Southeast Asia, Africa, Oceania, the Middle East, and domestic markets. Our ISO9001 certified production lines ensure that every plate meets international standards.
We offer flexible shipping options (FOB, CIF, CFR), fast lead times, and professional after-sales support. Whether you need a small batch for prototype development or a large volume for mass production, we can accommodate your requirements. Our team provides mill test certificates and third-party inspection reports to guarantee traceability and quality.
Contact us today to request a quote or discuss your specific machining needs. With our competitive pricing, reliable supply chain, and commitment to quality, Hemaokang Steel is your ideal partner for 1045 medium carbon steel plates.
Frequently Asked Questions (FAQ)
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Q: What is the typical hardness of 1045 steel plate in as-rolled condition?
A: As-rolled 1045 steel plate typically has a hardness of 170–210 HB, which is suitable for most machining operations. If higher hardness is required, heat treatment (quenching and tempering) can be arranged. -
Q: Can you supply plates with thickness other than 12mm, 25mm, and 50mm?
A: Yes, we can customize thicknesses from 6mm to 120mm within our hot-rolling capabilities. Please contact our sales team with your specific requirements. -
Q: What surface treatments are available to prevent rust during shipping?
A: We offer black oxidized surface, pickling, oiling, or varnish coating. The standard option is black surface with oil coating. For long-distance sea freight, we can apply rust-proof paper or VCI packaging. -
Q: Do you provide mill test certificates and third-party inspection?
A: Yes, mill test certificates (MTC) are included with each shipment. Third-party inspection by SGS, BV, or other agencies can be arranged at the buyer's cost. -
Q: Can these plates be used for welding applications?
A: 1045 steel has medium carbon content, so preheating and post-weld heat treatment may be required to avoid cracking. It is weldable with proper procedure. For structural welding, we recommend lower carbon grades like 1020 if weldability is critical. -
Q: What are the typical lead times for 12mm, 25mm, 50mm plates?
A: For standard sizes, lead time is 15–25 days after order confirmation. For custom sizes, it may be 25–35 days depending on the quantity and production schedule. -
Q: Do you offer cutting services? Can you supply plates cut to specific dimensions?
A: Yes, we offer plasma cutting, laser cutting, and shearing services. We can provide plates cut to your required dimensions (length and width) with tolerance of ±2mm. Please inquire for pricing. -
Q: Is your ISO9001 certification current? Can you share a copy?
A: Yes, our ISO9001:2015 certification is valid and up to date. We are happy to provide a copy of the certificate upon request.
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