About the Material

Materials We Support：

Steel 1018

Tensile Strength,Yield (MPa)	Fatigue Strength (Mpa)	Elongation at Break (%)	Hardness (Brinell)	Density (g/cm³)
370	78	15	126	7.87

Steel 1018 is the most commonly used cold-rolled steel and one of the most cost-effective among all steel types. It exhibits good ductility and is relatively easy to weld and machine, making it suitable for processes like forging, rolling, and bending. It finds wide application in pistons, screws, drive shafts, machine tools, and springs, among others.

Steel 4130

Tensile Strength,Yield (MPa)	Fatigue Strength (Mpa)	Elongation at Break (%)	Hardness (Brinell)	Density (g/cm³)
435	80	25.5	197	7.85

CSteel 4130 is a low-alloy steel. It is known for its excellent heat treatment capabilities and machinability, and it welds easily. It is commonly used in structural applications including gears, fasteners, and some aircraft components.

Steel 4140

Tensile Strength,Yield (MPa)	Fatigue Strength (Mpa)	Elongation at Break (%)	Hardness (Brinell)	Density (g/cm³)
675	80	17.8	302	7.85

Steel 4140 is known for its high fatigue strength, wear resistance, impact resistance, toughness, and torsional strength. It also exhibits good machinability, can be cold or hot worked, is easy to cut, and can undergo welding and heat treatment processes. Steel 4140 finds wide application in mechanical manufacturing, including the production of bearings, gears, bolts, shafts, and transmission components.

Steel 4340

Tensile Strength,Yield (MPa)	Fatigue Strength (Mpa)	Elongation at Break (%)	Hardness (Brinell)	Density (g/cm³)
470	74	22	217	7.85

Steel 4340 features high strength and good toughness, with high yield and tensile strengths suitable for engineering structures subjected to high stress and impact loads.

A2 Tool Steel

Tensile Strength,Yield (MPa)	Fatigue Strength (Mpa)	Elongation at Break (%)	Hardness (Brinell)	Density (g/cm³)
1275-1585	78	1月5日	57-62 HRC	7.86

A2 Tool Steel is an air-hardening tool steel known for its good toughness and excellent dimensional stability after heat treatment. It is widely used in applications requiring high strength and wear resistance, particularly in the manufacturing of cold work molds.

O1 Tool Steel

Tensile Strength,Yield (MPa)	Fatigue Strength (Mpa)	Elongation at Break (%)	Hardness (Brinell)	Density (g/cm³)
400	72	20%	63-65 HRC	7.83

CO1 Tool Steel is a versatile tool steel known for its excellent machinability, allowing it to easily create wear-resistant surfaces. It is particularly well-suited for making hardware molds such as blanking dies, stamping dies, bending dies, drawing dies, and punching punches. Its high dimensional stability and low deformation make it an ideal choice for precision mold manufacturing.

In the realm of blade materials, O1 Tool Steel is favored for its outstanding grindability and durability, making it an ideal material for manufacturing knives and other cutting tools, whether for professional or everyday use. However, it is important to note that O1 Tool Steel has lower toughness and corrosion resistance compared to some other materials, so these factors should be considered when selecting the appropriate material for specific applications.

C1045

Tensile Strength,Yield (MPa)	Fatigue Strength (Mpa)	Elongation at Break (%)	Hardness (Brinell)	Density (g/cm³)
310-470	310	16	170	1.87

C1045 is a versatile medium carbon engineering steel that offers excellent machinability and weldability. It can be heat treated via quenching and tempering, flame hardening, or induction hardening to achieve the desired hardness and strength. This steel is widely used in various industrial applications requiring high wear resistance and strength, including but not limited to manufacturing of shafts, gears, pins, crankshafts, and other mechanical components.

Low Carbon Steel

Tensile Strength,Yield (MPa)	Fatigue Strength (Mpa)	Elongation at Break (%)	Hardness (Brinell)	Density (g/cm³)
370	245	15	130	7.87

Low carbon steel, also known as mild steel, refers to carbon steel with a carbon content typically below 0.25%. It is characterized by its low strength and hardness, which makes it malleable and ductile. Low carbon steel can be hardened and strengthened through heat treatment methods, and it is suitable for cold forming and welding processes without significant risk of cracking or deformation. Additionally, it exhibits good corrosion resistance and wear resistance, making it suitable for prolonged use in humid environments. This type of steel finds wide applications in mechanical manufacturing, automotive manufacturing, construction engineering, and other industries.

Free Machining Steel 1140

Tensile Strength,Yield (MPa)	Fatigue Strength (Mpa)	Elongation at Break (%)	Hardness (Brinell)	Density (g/cm³)
620	310	20	160-190	7.85

Free Machining Steel 1140 is a type of steel known for its excellent machinability. It contains high levels of sulfur and phosphorus, which promote chip breaking and improve the machinability of the material. This steel is commonly used in applications where extensive machining operations are required, such as in the production of automotive parts, bolts, and shafts. Its composition allows for efficient and smooth machining processes, reducing tool wear and enhancing productivity.

P20 Tool Steel

Tensile Strength,Yield (MPa)	Fatigue Strength (Mpa)	Elongation at Break (%)	Hardness (Brinell)	Density (g/cm³)
1070	800	12	250-300	7.85

P20 Tool Steel is a versatile low-alloy steel widely used in the manufacturing of plastic injection molds. It offers good toughness, machinability, and polishability, making it suitable for various applications in the plastics industry. P20 Tool Steel is characterized by its ability to be hardened and tempered to meet specific mold-making requirements, providing high wear resistance and good dimensional stability. These properties make P20 a popular choice for producing molds for plastic parts used in automotive, household appliances, and consumer electronics industries.

H13 Tool Steel

Tensile Strength,Yield (MPa)	Fatigue Strength (Mpa)	Elongation at Break (%)	Hardness (Brinell)	Density (g/cm³)
1200-1400	800	10月12日	280-330	7.75

H13 Tool Steel is a chromium-molybdenum hot work steel known for its high toughness and thermal fatigue resistance. It maintains strength and hardness at elevated temperatures and is resistant to heat checking and wear. H13 is commonly used for hot work dies, die-casting dies, extrusion dies, and forging dies. Its balanced properties make it suitable for both hot and cold work applications.

M2 Tool Steel

Tensile Strength,Yield (MPa)	Fatigue Strength (Mpa)	Elongation at Break (%)	Hardness (Brinell)	Density (g/cm³)
1350-2100	1000	4	300-350	8.1

M2 Tool Steel is a high-speed steel known for its excellent wear resistance, toughness, and red hardness. It is widely used for cutting tools such as drill bits, end mills, and saw blades due to its ability to maintain sharpness and performance at high temperatures. M2 is often employed in applications requiring high strength and durability under demanding conditions.

D2 Tool Steel

Tensile Strength,Yield (MPa)	Fatigue Strength (Mpa)	Elongation at Break (%)	Hardness (Brinell)	Density (g/cm³)
1550	800	8	200-250	7.7

D2 Tool Steel is a high-carbon, high-chromium cold-work tool steel known for its excellent wear resistance and toughness. It retains good hardness and dimensional stability at high temperatures. Due to these properties, D2 steel is widely used for applications requiring high wear resistance and durability, such as dies, cutting tools, and punches. Its superior edge retention makes it an ideal choice for the manufacturing and tooling industries.

D3 Tool Steel

Tensile Strength,Yield (MPa)	Fatigue Strength (Mpa)	Elongation at Break (%)	Hardness (Brinell)	Density (g/cm³)
1900	1000	6月10日	600-650	7.8

D3 Tool Steel is a high-carbon, high-chromium tool steel known for its excellent wear resistance, hardness, and ability to retain a sharp cutting edge. It is widely used for making cutting tools, dies, and other components that require high durability.

D6 Tool Steel

Tensile Strength,Yield (MPa)	Fatigue Strength (Mpa)	Elongation at Break (%)	Hardness (Brinell)	Density (g/cm³)
1800	950	6月8日	600-650	7.75

D6 Tool Steel is a high-carbon, high-chromium tool steel that offers high wear resistance and toughness. It is used for making dies, tools, and other components that need to withstand heavy wear and high stresses.

Advantages:

High Strength: Steel alloys provide high tensile and yield strength, making them ideal for demanding applications.
Versatility: Suitable for a wide variety of industries, from automotive to heavy machinery.
Heat Resistance: Steel alloys retain their strength at high temperatures, suitable for high-temperature applications.
Good Weldability: Many steel alloys can be easily welded, providing additional fabrication flexibility.

Limitations:

Machinability: Steel alloys can be challenging to machine, requiring specialized tooling and techniques.
Corrosion Susceptibility: Some steel alloys require coatings or treatments to prevent corrosion in certain environments.
Tool Wear: Machining steel alloys can result in significant tool wear, increasing production costs.

Chemical Composition Table for Steel Alloys

Element	Typical Percentage (%)
Iron (Fe)	85-98
Carbon (C)	0.1-1.5
Manganese (Mn)	0.5-2.0
Chromium (Cr)	0.5-2.0
Nickel (Ni)	≤ 2.0

Mechanical Machining Properties Table for Steel Alloys

Property	Value
Machinability Rating	Moderate
Cutting Speed (m/min)	50-100
Tool Wear Resistance	Low
Coolant Requirement	Required
Surface Finish Quality	Moderate to High

Design Parameters Table for CNC Machining Steel Alloys

Maximum Bulid Size (mm)	Minimum Wall Thickness (mm)	Minimum Assembly Gap (mm)	Tolerance (mm)	Minimum End Mill Size (mm)	Minimum Drill Size (mm)
3600x2500x600	1	0.01	Minimum 0.01	1	0.5

Industry Applications and Case Studies for CNC Machining Steel Alloys

Automotive Industry:

Application: Production of engine blocks, gears, and suspension components.
Case Study: An automotive manufacturer used CNC machining to create steel alloy gears, providing strength and durability for high-performance vehicles.

Construction and Heavy Machinery:

Application: Manufacturing of structural components, brackets, and frames.
Case Study: A construction equipment company utilized CNC machining to produce steel alloy frames, ensuring durability and load-bearing capacity.

Aerospace Industry:

Application: Production of structural components, landing gear parts, and fittings.
Case Study: An aerospace company used CNC machining to create steel alloy landing gear components, ensuring strength and reliability under high-stress conditions.

Frequently Asked Questions (FAQs) about CNC Machining Steel Alloys

What are the benefits of using steel alloys in CNC machining?

Steel alloys offer high strength, toughness, and versatility, making them ideal for demanding applications in various industries.

Is CNC machining suitable for high-volume steel alloy production?

Yes, CNC machining is effective for both prototyping and high-volume production of steel alloy components.

What industries benefit from CNC machining steel alloys?

Industries such as automotive, aerospace, construction, and heavy machinery benefit from the strength and durability of steel alloys.

How does steel compare to stainless steel in terms of machinability?

Steel alloys are generally easier to machine compared to stainless steel, but they may require surface treatments for corrosion resistance.

What are the limitations of using steel alloys in CNC machining?

Limitations include potential corrosion susceptibility and increased tool wear during machining.

Can steel alloys be heat-treated after CNC machining?

Yes, steel alloys can be heat-treated to enhance their hardness and mechanical properties.

What tolerances can be achieved with CNC machining steel alloys?

Typical tolerances are ±0.15 mm, depending on the specific requirements of the part.

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