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Help CenterCarbon Steel Rod SAE 1018 Precision Ground ±0.05mm Tolerance for Machining
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At Hemaokang Steel (Shandong) Co., Ltd., we are proud to offer high-quality Carbon Steel Rod SAE 1018 Precision Ground ±0.05mm Tolerance designed specifically for demanding machining applications. As a trusted manufacturer with an annual export value exceeding US$50 million and a dedicated team of 51–100 professionals, we ensure every rod meets strict dimensional accuracy and surface finish requirements. Our precision ground rods are ideal for producing shafts, pins, bushings, and other machined components where tight tolerances and consistent performance are critical.
The SAE 1018 grade is a low-carbon steel that offers excellent weldability, machinability, and moderate strength. When combined with precision grinding to ±0.05mm tolerance, our rods provide a superior surface finish and straightness, reducing the need for secondary operations. Whether you are in the automotive, machinery, or general manufacturing industry, our rods deliver reliability and efficiency.
Key Features & Specifications
| Property | Value |
| Material Grade | SAE 1018 (AISI 1018) |
| Diameter Range | 3mm – 200mm (custom sizes available) |
| Length Range | 1000mm – 6000mm (or cut to length) |
| Tolerance | ±0.05mm (precision ground) |
| Surface Finish | Ra ≤ 0.8μm (ground) |
| Straightness | ≤ 0.5mm per 1000mm |
| Hardness | As-rolled: 126 HB max; Annealed: 71–100 HRB (optional) |
| Chemical Composition (typical) | C: 0.15–0.20%, Mn: 0.60–0.90%, P: ≤0.040%, S: ≤0.050% |
Product Advantages for Your Machining Needs
- Precision Ground Tolerance of ±0.05mm – Reduces material waste and secondary processing, allowing you to achieve tight fits directly from the bar.
- Excellent Machinability – SAE 1018 offers good chip control and tool life, making it a preferred choice for high-volume CNC turning, milling, and drilling.
- Consistent Mechanical Properties – Uniform hardness and microstructure across the entire length ensure predictable performance in your parts.
- Customizable Dimensions – We offer diameters from 3mm to 200mm and lengths up to 6 meters, with additional cutting services available upon request.
- Superior Surface Finish – The ground surface (Ra ≤ 0.8μm) minimizes friction and wear, ideal for sliding or rotating components.
- Versatile Applications – Suitable for manufacturing shafts, dowels, pins, spindles, hydraulic pistons, and precision tooling.
- Rigorous Quality Control – Every batch is tested for dimensional accuracy, chemical composition, and mechanical properties to meet ASTM A108 standards.
Why Choose Hemaokang Steel?
With headquarters in Liaocheng, Shandong, China, Hemaokang Steel (Shandong) Co., Ltd. has quickly established itself as a reliable supplier in the global steel market. Since our founding in 2025, we have achieved an annual export value of US$50 million to US$100 million, serving markets across North America, South America, Europe, Southeast Asia, Africa, Oceania, and the Middle East. Our factory is ISO9001 certified, ensuring that every product undergoes strict quality management procedures.
We understand that consistency and reliability are paramount for your machining operations. That’s why we maintain a large inventory of SAE 1018 precision ground rods, ready for fast delivery. Our experienced team of 51–100 employees is dedicated to providing responsive customer support, technical advice, and customized solutions.
Contact us today for a quote or to request samples. Experience the Hemaokang difference – precision, quality, and value that drive your success.
Frequently Asked Questions (FAQ)
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Q: What is the typical lead time for SAE 1018 precision ground rods?
A: For standard sizes, we can ship within 7–15 days after order confirmation. Custom sizes may require 15–25 days depending on quantity. -
Q: Can you provide smaller quantities for prototyping?
A: Yes, we welcome sample orders. Minimum order quantity (MOQ) for standard rods is 1 ton, but we can discuss smaller quantities for trial purposes. -
Q: How do you ensure the ±0.05mm tolerance is maintained?
A: Our rods are precision ground using advanced CNC grinding machines and are inspected with laser micrometers and air gauges. Each batch comes with a dimensional inspection report. -
Q: Is the material suitable for induction hardening?
A: SAE 1018 has a low carbon content, so it is not recommended for through-hardening. However, it can be case-hardened (carburized) to achieve a hard surface layer. -
Q: Do you offer any surface protection options?
A: Yes, we can apply rust preventive oil, varnish, or protective coating upon request. Standard packaging includes plastic caps and waterproof wrapping. -
Q: What types of packaging do you use for export?
A: We bundle rods with steel straps, wrap them in waterproof paper, and secure them in wooden crates or pallets to prevent damage during transit. -
Q: Can you supply rods with a specific straightness requirement?
A: Our standard straightness is ≤0.5mm per 1000mm. If you require tighter straightness (e.g., ≤0.3mm/m), we can adjust our grinding process at an additional cost.
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