Steel in CNC Machining
At Tuowei Precision, our CNC steel machining services handle everything from rapid functional prototypes to high-volume production components. Because carbon and alloy steels are susceptible to surface oxidation, we provide integrated post-processing—including black oxide, zinc plating, carburizing, and heat treatments—to ensure optimal environmental protection and long-term mechanical reliability.
| Alloys available | Carbon Steel: 1018, 1020, 1025, 1045, 1215, 4130, 4140, 4340, 5140, A36, ST37 Alloy Steel: 4J36 Die Steel: 718H, P20, S136, S7 Chisel Tool Steel: D2/SKD11, SKD61 High Speed Steel: SKH51 Spring Steel: 1566, 9260 Tool Steel: A2 Bearing Steel: E51100/SUJ1, E52100/SUJ2 Galvanized Steel: SGCC / SECC SPCC |
| 价格 | Flexible / Cost-Effective ($$) |
| 准备时间 | Under 10 days |
| 壁厚 | 0.75 毫米 |
| 公差 | ±0.125 mm (±0.005 in) |
| 最大部件尺寸 | 200 x 80 x 100 厘米 |
Steel CNC Machining Materials
Steel Material Properties
Copper C103 provides high electrical conductivity with good formability and reliable machining performance. It is commonly used for connectors, terminals, electronic components, and applications that require efficient current flow.








Advantages and Limitations of Steel CNC Machining Service
Get precise, high-quality steel CNC machined parts with tight tolerances and complex geometries. Send us your design and request a fast quote for your steel CNC machining project.
High Electrical Conductivity: Provides low electrical resistance and minimal power loss, ensuring optimal current transfer for terminals, connectors, and busbars.
High Thermal Conductivity: Efficiently dissipates heat away from critical assemblies, making it the preferred choice for heat sinks, cooling plates, and heat exchangers.
耐腐蚀: Naturally develops a protective surface oxide layer that shields parts from atmospheric oxidation, water exposure, and industrial chemicals.
Malleability and Ductility: High material flexibility enables smooth cold forming and the machining of intricate, detailed features without brittle fracturing.
Antimicrobial & Biostatic Properties: Inhibits bacterial proliferation and microbial buildup, making it exceptionally reliable for healthcare equipment, laboratory instruments, and sanitary systems.
耐用性: Offers long-term structural integrity and resistance to operational fatigue, lowering maintenance downtime and replacement costs.
- Risk of Corrosion:
Some steel grades can rust or corrode without proper surface treatment, coating, or protective finishing. - Higher Weight:
Steel is heavier than materials such as aluminum, which may not suit applications where low weight is a priority. - Increased Tool Wear:
Harder steel grades can wear cutting tools faster and may require slower machining speeds and more frequent tool replacement.
- Longer Machining Time:
High-strength steels can take more time to cut and finish, especially when tight tolerances or complex geometries are required.
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从快速原型制作到可扩展的生产,Tuowei Precision 提供可靠的数控加工服务,在每个环节都确保精度与一致性。立即启动您的项目。.
- 成熟的工程技能。.
- 全球项目支持
- 先进的数控解决方案
- 共同创造产品。.
- 可扩展的生产能力。.
- 所有上传内容均安全保密
数控加工公差
我们的数控机床以符合行业标准的精密公差运行,确保每个部件都始终如一地精确,并与其他部件完美配合。.
| 功能类型 | 典型公差 |
|---|---|
| 一般尺寸公差 | ±0.025 mm (±0.001″) |
| 高精度公差 | ±0.005 mm (±0.0002″) |
| 孔直径(钻孔) | ±0.05 mm (±0.002″) |
| 孔直径(扩孔/钻孔) | ±0.01 mm (±0.0004″) |
| Shaft Diameter (Turned) | ±0.01 mm (±0.0004″) |
| 平整度 | 每 100 毫米 0.02 毫米 |
| 并行性 | ±0.02毫米 |
| 垂直度 | ±0.02毫米 |
| 表面粗糙度 (Ra) | 1.6–3.2 μm (63–125 μin) |
| 位置公差 | ±0.01毫米至±0.02毫米 |
| 螺纹公差(切削) | 6H / 6g(ISO)或 2A/2B(ANSI)级 |
| 最小特征尺寸 | 0.5 mm (0.020″) |
| 重复性 | ±0.005 mm (±0.0002″) |
Steel CNC Machining FAQs
Can you machine both small and large steel parts?
Yes. Our steel CNC machining service can produce both small precision components and larger industrial parts. We select the right machining process based on the part size, geometry, tolerance, and production requirements.
What tolerances can you achieve with steel CNC machining?
We can machine steel parts to tight tolerances based on the design, steel grade, and part complexity. For demanding applications, we can also support precision features that require consistent dimensional accuracy.
Is steel CNC machining more expensive than machining aluminum?
Steel can cost more to machine than aluminum because it is harder and may require slower cutting speeds and greater tool wear. However, the final cost depends on the steel grade, part geometry, tolerances, quantity, and surface finish requirements.