CNC Steel Machining Services
CNC Machining of Steel Alloys for Custom Parts and Prototypes
- 複雑なデザインのための精密加工
- 多様な業界に対応する柔軟なソリューション
- 最短5日で迅速な納品を実現
- 独自の要件に合わせたカスタマイズサービス
we specialize in high-precision CNC steel machining, delivering custom parts that offer unmatched strength, durability, and versatility.
Why Choose Steel for CNC Machining?
Steel, primarily an iron-carbon alloy with up to 2% carbon and optional alloying elements like chromium or nickel, is the backbone of modern engineering due to its remarkable strength-to-weight ratio and adaptability. It outperforms many metals in load-bearing scenarios, providing a cost-effective alternative to exotic materials while maintaining reliability in extreme conditions. Compared to softer alloys like aluminum, steel’s higher hardness enables longer-lasting parts but demands optimized machining to manage tool wear and heat.
High Strength and Hardness
Withstands heavy loads and impacts, ideal for structural and mechanical components.
耐摩耗性
Excels in abrasive environments, reducing downtime and replacement needs.
多用途性
Easily heat-treated for tailored properties, from ductile to ultra-hard.
コストパフォーマンス
Abundant and recyclable, offering excellent value for high-volume production.
Corrosion Options
Alloyed variants like stainless steel provide protection in harsh settings.
Our CNC expertise harnesses these traits to create parts with precise geometries and minimal defects, surpassing casting or forging in speed and accuracy for complex designs.
Steel Material Properties
Steel alloys are engineered by varying carbon content (0.05–2%) and additives, customizing traits for specific demands. Typical properties include:
- Density: 7.8–8.0 g/cm³, delivering robust yet manageable weight.
- Hardness: Rockwell B 70–100 (up to C 60 in tool steels), balancing toughness and edge retention.
- Tensile Strength: 400–2,000 MPa, scalable via grade and treatment.
- Elongation: 5–50%, supporting formability in low-carbon types.
- Maximum Service Temperature: Up to 1,000°F in heat-resistant alloys.
These qualities position steel as a staple for parts needing superior mechanical performance and environmental adaptability.
Available Steel Grades for Machining
We maintain a comprehensive inventory of steel alloys for your CNC projects. Below is a curated list of popular grades, highlighting essential specifications:
| 合金 | 機械加工性評価（AISI） | 引張強さ | 硬さ | 主な特徴 | 一般的な用途 |
|---|---|---|---|---|---|
| 1018 (Low Carbon Steel) | 70–80 | 440 | B 71 | Excellent ductility, weldable, easy to form | Shafts, pins, structural brackets |
| 1045 (Medium Carbon Steel) | 60–70 | 515 | B 86 | Balanced strength, heat-treatable for hardness | Gears, crankshafts, machinery parts |
| 4140 (Alloy Steel) | 50–60 | 655–1,000 | C 22–30 | High toughness, fatigue-resistant, good corrosion resistance | Axles, bolts, aerospace components |
| 304 (Austenitic Stainless) | 45–55 | 505 | B 70 | cURL Too many subrequests. | cURL Too many subrequests. |
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Secondary operations such as heat treating, passivation, or zinc plating boost durability and aesthetics. Prototypes ship in 3–5 days, with streamlined scaling for larger orders.
公差と精度基準
Excellence in precision defines us. We adhere to ISO 2768-m standards (±0.005–0.010 mm), refining to ±0.001 mm using CMMs and laser scanners. Alloy hardness and part dimensions affect outcomes—low-carbon steels like 1018 yield tighter specs with less expansion.
Applications of CNC Machined Steel Parts
Automotive & Aerospace
Crankshafts, landing gear, and turbine components enduring vibration and stress.
Energy & Marine
Pressure vessels and propeller shafts resisting corrosion and pressure.
Medical & Food Processing
Implants and sanitary fittings leveraging stainless hygiene and strength.
Tooling & Consumer Goods
Dies, knives, and hardware blending performance with economy.
Automotive & Aerospace
Crankshafts, landing gear, and turbine components enduring vibration and stress.
Steel Machining FAQs
Drawing from our deep knowledge at XTJ Precision Manufacturing, here are responses to frequent queries on CNC steel machining.
Get Your Custom Steel Parts Today
Harness the reliability of CNC steel machining with XTJ—upload your designs for an instant quote or discuss alloy selection with our experts. We deliver precision, speed, and value every step of the way.