# Steel CNC Machining Services | Custom Steel Parts Manufacturing

> Precision steel CNC machining services for custom steel parts. Expert manufacturing of 1018, 1045, 4140 steel components and heat-treated steel parts with rapid prototyping.

https://www.sinbo-machining.com/products/materials/steel/

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## On This Page

- Advanced Steel Alloys
  - 1018 Cold Rolled Steel
  - 1045 Induction Hardened
  - 4140 Q&T Alloy Steel
  - 300M Ultra-High Strength
  - Heat Treated Steel Components
- Steel Alloy Specifications
- Why Choose Our Steel CNC Services?
  - High Strength
  - Heat Treatment
  - Cost-Effective
- Get Your Steel Parts Today

# Steel CNC Machining Services
[Get Instant Quote ](https://www.sinbo-machining.com/quote/)[Contact Us ](https://www.sinbo-machining.com/contact/)
## Advanced Steel Alloys
Premium tool steels, alloy steels, and specialty steels for aerospace, industrial, and energy applications [PRECISION ISO 9001
### 1018 Cold Rolled Steel
Precision cold-rolled 1018 with exceptional dimensional stability and surface finish - Surface finish: Ra 0.8μm
- Tolerance: ±0.001"
- Weldability: Excellent
](https://www.sinbo-machining.com/products/materials/steel/1018-steel-cnc-machined-parts/)[GEAR AGMA
### 1045 Induction Hardened
Induction-hardened 1045 for high-performance gears and transmission components - Hardness: HRC 55-60
- Case depth: 1-3mm
- Core toughness: High
](https://www.sinbo-machining.com/products/materials/steel/1045-steel-precision-components/)[AEROSPACE AS9100
### 4140 Q&T Alloy Steel
Quenched and tempered 4140 for aerospace landing gear and structural components - Tensile: 950 MPa
- Yield: 655 MPa
- Impact: 54 J at -40°C
](https://www.sinbo-machining.com/products/materials/steel/4140-alloy-steel-parts/)[INDUSTRIAL ITAR
### 300M Ultra-High Strength
Industrial-grade 300M steel for aircraft landing gear and high-strength components - Tensile: 1930 MPa
- Fracture toughness: 82 MPa√m
- Fatigue life: 10^7 cycles
](https://www.sinbo-machining.com/products/materials/steel/300m-ultra-high-strength-steel/)[TOOL HRC 62+
### Heat Treated Steel Components
Premium H13 hot-work tool steel for die casting molds and extrusion dies - Hardness: HRC 48-52
- Red hardness: 600°C
- Thermal fatigue: Excellent
](https://www.sinbo-machining.com/products/materials/steel/heat-treated-steel-components/)
## Steel Alloy Specifications
Technical specifications for commonly machined steel alloys
|  Alloy |  Tensile Strength |  Yield Strength |  Applications
|  1018 |  440 MPa |  370 MPa |  General purpose, shafts, pins
|  1045 |  565 MPa |  310 MPa |  Gears, shafts, machinery parts
|  4140 |  655 MPa |  415 MPa |  Automotive, aerospace, heavy machinery

## Why Choose Our Steel CNC Services?

### High Strength
Exceptional strength and durability for heavy-duty applications
### Heat Treatment
Advanced heat treatment capabilities for enhanced properties
### Cost-Effective
Competitive pricing for high-quality steel components
## Get Your Steel Parts Today
Upload your CAD files and receive instant quotes for custom steel components [Get Instant Quote ](https://www.sinbo-machining.com/quote/)