Steel CNC Machining

Extensive steel options for CNC machining, perfect for prototypes and custom end-use parts in various industries.

Stainless Steel

Carbon Steel

Alloy Steel

Tool Steel

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IOS 9001

IOS 14001

Steel

Steel is widely used in manufacturing due to its excellent mechanical properties, including high strength, hardness, wear resistance, plasticity, and machinability. It is ideal for CNC machining parts like bearings, gears, molds, and dies in the automotive, aerospace, and machinery manufacturing industries.

Description

Application Industries: Automotive Manufacturing, Aerospace Industry, Machinery Manufacturing, Construction Industry, Energy Sector, etc.

Advantages: High strength, good plasticity and machinability, excellent wear resistance, wide variety of types and specifications.

Weaknesses: Heavy weight, susceptible to temperature effects.

Features

Price: $$$

Maximum Part Size:
236“ x 118” x 24“ （6,000×3，000 x 610 mm）

Delivery Time: 2-15 working days

Steel Selection Guide

Our team of skilled engineers is here to help you select the most suitable material for your project, ensuring optimal performance and cost-effectiveness. Contact us today to discuss your requirements and see how our machining expertise can bring your ideas to life.

Steel Classification	Feature	Application	Price
Low Carbon Steel	Easy to weld and process	Structural parts, general machinery	$
Medium Carbon Steel	High strength and hardness	Transmission shafts, axles, mechanical parts	$$
High Carbon Steel	High hardness and wear resistance, brittle	Tools, springs, bearings	$$
Alloy Steel	High strength, toughness, suitable for heavy load applications	Automotive manufacturing, gears, bearings	$$
Stainless Steel	High-Temperature resistance, good corrosion resistance	Food manufacturing, medical industry, household items	$$$
Tool Steel	Good wear resistance and cutting performance	Machinery manufacturing, mold making, aerospace industry	$$$$

Stainles Steel Typical Materials

Strength: Resistance to deformation and failure; “High” means it withstands significant force without breaking.
Hardness: Resistance to scratches, indentations, and wear; “High” means better protection against physical impacts.
Mechanical Properties: Includes the material’s toughness, ductility, etc.
Machinability: Ease of cutting and performance during machining.

Materials	Corrosion Resistance	Strength	Hardness	Machinability	Application	Price
304	★★★★	★★	★★	★★★	Food Processing, Kitchenware, General Chemical Equipment	$$$
304F	★★★★	★★	★★	★★★	Automated Turning, Precision Parts	$$$$
304L	★★★★	★★	★	★★★	Welding Structures, Chemical Processing Equipment	$$$
303	★★★	★★	★★	★★★	Precision Parts, Fasteners, Electronic Equipment	$$$
316	★★★★	★★	★★	★★★	Medical Equipment, Marine Environment Equipment	$$$$
316F	★★★★	★★	★★	★★★	Precision Machinery Processing	$$$$
316L	★★★★	★★	★	★★★	Medical Equipment, Food Processing	$$$$
316Ti	★★★★	★★	★★	★★★	High-Temperature Chemical Processing Equipment	$$$$
201	★★★	★	★	★	Low-cost Consumer Goods	$$
310S	★★★★	★★★	★★★	★★★★	High-Temperature Applications, Furnace Components	$$$$
440C	★★★	★★★	★★★	★★★★	Knives, Bearings	$$$$
410	★★	★★	★★★	★★	Pumps, Valves, Knives	$$
416	★★	★★	★★	★★	Gears, Shafts, Fasteners	$$$
420	★★★	★★★	★★★	★★★★	Knives, Medical Instruments	$$$
440F	★★★	★★★	★★★	★★★★	Precision Parts, High Wear Applications	$$$$
440	★★★	★★★	★★★	★★★★	Knives, Bearings	$$$$
430	★★★	★★	★★	★★	Household Appliances, Decorative Components	$$
630	★★★★	★★★	★★★	★★★★	Aerospace Structures, Nuclear Reactor Components	$$$$
17-4 PH	★★★	★★★	★★★	★★★★	Aerospace, Chemical, Food Processing, Nuclear Industry	$$$$
13-8 Mo	★★★	★★★	★★★	★★★★	Aerospace Parts, Nuclear Facilities, Chemical Processing	$$$$

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Carbon Steel Typical Materials

Corrosion Resistance: Measures the material’s ability to resist rust in various environments.
Strength: The material’s ability to resist deformation and failure.
Hardness: The material’s ability to resist permanent deformation (such as scratches and indentations).
Mechanical Properties: Includes the material’s toughness, ductility, etc.
Machinability: Describes how the material performs during machining, such as ease of cutting.

Materials	Carbon Content (%)	Strength	Toughness	Plasticity	Weldability	Applications	Price
1144	0.40-0.48	★★★	★★	★★	★	High-strength Bearings, Fasteners	$$
Q235	0.17-0.22	★★	★★★	★★★	★★★	Construction Steel, Bridges	$
Q215	0.12-0.18	★	★★★	★★★	★★★	Light Structures, Furniture	$
1040	0.37-0.44	★★	★★	★★	★★	Mechanical Parts, Crankshafts	$$
1045	0.43-0.50	★★★	★★	★★	★★	Shafts, Gears, Crankshafts	$$
1018	0.15-0.20	★	★★★	★★★	★★★	Fasteners, Structural Steel	$
20#Steel	0.17-0.24	★★	★★★	★★★	★★★	Pipes, Small Bearings	$
35#Steel	0.32-0.39	★★★	★★	★★	★★	Mechanical Structures, Small Gears	$$
45#Steel	0.42-0.50	★★★	★★	★★	★★	Molds, Bearings, Stamping Parts	$$
60#Steel	0.57-0.65	★★★★	★	★	★	Springs, High-strength Fasteners	$$
Y40Mn	0.37-0.45	★★	★★	★★	★★	Shafts, Gears, Tools	$$
s20c	0.18-0.23	★★	★★★	★★★	★★★	Light Structures, Automotive Parts	$
11SMn30	0.09-0.14	★	★★	★★★	★	Automatic Lathe Processing, Precision Parts	$$
1214	0.09-0.15	★	★★★	★★★	★	Bolts, Fasteners, Free-cutting Parts	$
1215	0.09-0.15	★	★★★	★★★	★	Fasteners, Free-cutting Parts, Furniture Parts	$

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Alloy Steel Typical Materials

Corrosion Resistance: Reflects the material’s performance in corrosive environments.
Strength: Indicates the material’s ability to withstand tensile, compressive, and other forces.
Hardness: Indicates the material’s surface resistance to indentation.
Wear Resistance: The material’s ability to resist wear is related to hardness.
Machinability: Describes the ease of processing the material during mechanical machining.

Materials	Composition	Corrosion Resistance	Strength	Wear Resistance	Application	Price
40Cr	Cr, Mn, Si, C	★★	★★★	★★★	Gears, Bearings, Automotive Parts	$
4140	Cr, Mn, Mo, Si, C	★★	★★★	★★★	Shafts, Crankshafts, Gears, Molds	$
4130	Cr, Mo, C	★★	★★	★★	Aerospace, Race Car Parts	$
16MnCr5	Mn, Cr, C	★★	★★	★★	Gears, Bearings, Vehicle Transmission Parts	$
30CrMo	Cr, Mo, C	★★	★★★	★★★	Industrial Pressure Vessels, High-Strength Bolts	$
30CrMoV9	Cr, Mo, V, C	★★	★★★	★★★	High-Performance Gears and Shafts, Aerospace	$
38NiCrMo4	Ni, Cr, Mo, C	★★	★★★	★★★	Heavy Machinery, Engineering and Structural	$
42CrMo	Cr, Mo, C	★★	★★★★	★★★★	High-Strength Bolts, Structural Parts, Crankshafts	$$
EN24	Ni, Cr, Mo, C	★★	★★★	★★★	Bearings, Gears, Heavy Load Applications	$
4340	Ni, Cr, Mo, C	★★	★★★	★★★	Aerospace, Automotive, Molds	$
A514 T1	Cr, Mo	★	★★★★	★★★	Construction, Bridges and Building Supports	$$
Q345B	Fe, C, Mn, Si	★★	★★★	★★	Construction, Manufacturing, Ships, Vehicles	$
Q345	Fe, C, Mn, Si	★★	★★★	★★	Engineering Structures, Mechanical Parts, Vehicles	$

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Tool Steel Typical Materials

Material Name	Features	Disadvantages	Application	Price
D2 Tool Steel	High wear resistance and hardness, good dimensional stability	Difficult to machine, high tool wear	Stamping dies, cutting tools, long-life tools	$$$
M2 High-Speed Steel	High wear resistance, good thermal stability, works at high temperatures	Relatively expensive, difficult to weld	Manufacturing drills, taps, cutting tools, and high-speed cutting tools	$$$$
A2 Tool Steel	Good overall performance, including wear resistance and toughness	Moderate machinability, stringent heat treatment requirements	Stamping dies, mold components, precision machining tools	$$$
S7 Tool Steel	High toughness, easy to machine	Wear resistance and hardness are lower compared to other tool steels	Stamping dies, punches, rivet sets, break dies	$$$
O1 Tool Steel	Good wear resistance and stability, easy to heat treat	Relatively lower hardness, corrosion resistance not as good as stainless steel	Knives, dies, molds	$$
P20 Tool Steel	Excellent machinability, can be used after pre-hardening	Low hardness, not suitable for high-temperature applications	Plastic injection molds, mold bases and TV frames	$$$
H13 Tool Steel	High toughness and hardness, strong thermal fatigue resistance	Difficult to machine, stringent heat treatment requirements	High-temperature forging dies, extrusion dies, hot shear blades	$$$$

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Steel Surface Treatment

CNC stainless steel parts polishing for achieving smooth, high-gloss surfaces and premium finish quality

Polished

CNC stainless steel parts brushing for uniform, textured surfaces with enhanced aesthetics

Brushed

CNC stainless steel hardcoat anodizing for enhanced surface durability and wear resistance

Blackened

CNC stainless steel parts electroplating for improved corrosion resistance and decorative finishes

Electroplated

Finishes Option	Finishes Description	Finishes Color	Finishes Purpose
Default Surface	This is the surface finish that results directly from the machining process without any post-processing. It may have visible tool marks and is not typically very smooth.	Various (depends on material)	Basic finish, cost-effective
As machined	Parts are machined and deburred, sharp edges are chamfered. Visible machining marks, light surface scratches.	Various (depends on material)	Machining Decorative Patterns
Polishing	Polishing refers to a process using mechanical, chemical or electrochemical effects to reduce the surface roughness of the workpiece to obtain a bright and smooth surface.	Various (depends on material)	Improve the smoothness of the workpiece surface
Mirror Polishing	A surface finishing process that uses a series of increasingly fine abrasive tools and compounds to produce a highly reflective, mirror-like surface finish.	Various (depends on material)	Improve material aesthetics, ease of cleaning, corrosion resistance, optical reflectivity
Bead Blasting	A cold working process to improve fatigue life by bombarding the surface with spherical media.	None (textured surface)	Improve fatigue life, enhance surface strength
Sand Blasting	A surface treatment process using compressed air to propel abrasive material against a surface for cleaning or roughening.	None (textured surface)	Clean surface, increase roughness
Black Oxide	A conversion coating process to blacken ferrous metals and provide corrosion resistance.	Black	Provide decorative effect, enhance corrosion resistance
Passivation	A chemical process to remove iron from the surface of metal and improve corrosion resistance.	None (smooth surface)	Improve corrosion resistance, increase smoothness
Phosphating	A chemical conversion coating process to improve corrosion resistance and promote paint adhesion on steel surfaces.	Gray	Provide protection, promote paint adhesion
Electrophoretic	A coating technology that applies an organic or inorganic coating to a metal surface through an electrochemical process.	Various (including black white, red, green, champagne, blue)	Provide decorative effect, improve corrosion resistance
Electroplating	Electrochemical deposition of a metal coating onto the surface of a part to improve appearance and resistance to corrosion.	Various (depends on plating material)	Improve appearance, increase corrosion resistance
Electropolishing	Electrochemical polishing to smooth the surface, improving brightness and reducing roughness.	Mirror finish	Improve smoothness, enhance brightness
Chrome Plating	Applying a layer of chromium to a metal part to increase wear and corrosion resistance.	Silver	Improve wear and corrosion resistance
Nickel Plating	Applying a layer of nickel to a metal part to improve corrosion resistance and appearance.	Silver	Improve corrosion resistance, enhance appearance
Tin Plating	Applying a layer of tin to a metal part, often used to prevent oxidation and improve solderability.	Silver	Prevent oxidation, improve solderability
Zinc Plating	Applying a layer of zinc to a metal part to improve corrosion resistance.	Silver	Improve corrosion resistance
PVD	Physical vapor deposition (PVD) process that creates a thin film on the metal surface to improve wear and corrosion resistance.	Various colors	Improve wear and corrosion resistance
DLC Coating	Diamond-like carbon (DLC) coating that enhances the hardness and wear resistance of the metal surface.	Black	Improve hardness and wear resistance
Powder Coating	Applying a powder coating using electrostatic spray and then curing it at high temperatures to form a hard protective layer.	Various (depends on powder color)	Provide protective coating, improve appearance
Painting	Applying paint to the metal surface in one or more layers to provide protection and decoration.	Various (depends on paint color)	Provide protective and decorative coating
Heat Treatment	Using heat to alter the physical and mechanical properties of the metal.	None (depends on material)	Improve hardness, strength, and durability
Laser Marking	Using a laser to mark the metal surface, providing permanent identification.	Various (depends on material)	Provide permanent identification
Cleaning	Using various methods to clean the metal surface, removing contaminants and impurities.	None (depends on material)	Remove contaminants, improve surface quality