Steel CNC Machining
Services On Aria
We delivers top-tier steel CNC machining services for industries requiring robust, durable, and precision-engineered components. From mild steel to alloy steels。
Our advanced CNC technology ensures tight tolerances (±0.005 in), complex geometries, and superior surface finishes tailored to your exact specifications.
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What is Steel CNC Machining?
Steel is a strong and versatile iron-carbon alloy, often enhanced with other elements, that is widely used in construction, manufacturing, and CNC machining due to its durability, machinability, and cost-effectiveness.
Steel CNC machining is the use of computer-controlled tools to cut, shape and finish steel parts, with high precision, durability and repeatability, suitable for industrial applications.
Why Choose Steel CNC Machining?
Superior Strength & Durability
Withstands heavy loads, impacts, and wear, perfect for automotive, aerospace, and machinery parts.
Excellent Machinability
Easier to cut and shape than harder metals (like titanium), reducing production time and costs.
Wide Material Selection
Options include mild steel (1018, A36), carbon steel (1045, 4140), tool steel (D2, A2), and alloy steels for varied needs.
Cost-Effective
More affordable than stainless steel or exotic metals while offering comparable strength.
Surface Treatment Compatibility
Can be heat-treated, plated, painted, or powder-coated for enhanced corrosion resistance and aesthetics.
Types of Steel
Subtypes
Tensile Strength, Yield (MPa)
Shear Modulus (GPa)
Elongation at Break (%)
Hardness (Brinell)
Density (g/cm³)
Steel 1018
370
78
15
126
7.87
Steel 4130
435
80
25.5
197
7.85
Steel 4140
675
80
17.8
302
7.85
Steel 4140 PH
685-896
80
14-19.2
271-301
7.85
Steel A36
250
79.3
20
119
7.85
Steel 1215
415
80
10
167
7.87
Steel 4340
470
74
22
217
7.85
A2 Tool Steel
1275-1585
78
1-5
57-62 HRC
7.85
O1 Tool Steel
400
72
20
63-65 HRC
7.83
Steel CNC Machining Parameter
Parameter
Roughing Range
Finishing Range
Unit/Notes
Spindle Speed
800-1500
1500-3000
RPM (Carbide tool)
Spindle Power
5-15
3-10
kW (Machine-dependent)
Feed Rate
0.15-0.3
0.05-0.15
mm/tooth (Chip load per tooth)
Cutting Depth (Axial)
3-8
0.2-1
mm (Depth of cut)
Cutting Width (Radial)
30-70% of tool dia.
10-30% of tool dia.
mm (Stepover width)
Machining Accuracy
±0.1
±0.02
mm (IT tolerance grade)
Surface Roughness
Ra 3.2-6.3
Ra 0.8-1.6
μm
Tool Type
Coated carbide end mill
Carbide ball nose/finish mill
TiAlN/TiCN recommended
Tool Diameter
6-20
2-10
mm (Feature-dependent)
Coolant Type
Emulsion/High-pressure air
Oil-based/MQL
Dry cutting for cast iron
Chip Load
0.1-0.3
0.02-0.1
mm/tooth
Ramp Angle
3-10°
≤5°
Helical entry angle
Stepover
50-70% of tool dia.
5-20% of tool dia.
mm (Reduced for fine finishes)
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