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Alloy Steel
Precision CNC Machining for High-Strength Alloy Steel Components
●Custom Alloy Steel Parts with ±0.01 mm Tolerances
●ISO 9001:2015 & RoHS-Compliant Quality Assurance
●Fast Turnaround and Global Delivery Reliability

Alloy Steel CNC Machining Service

Experience unparalleled precision and exceptional quality with our comprehensive Alloy Steel Parts Service, meticulously enhanced by state-of-the-art CNC machining technology. We specialize in manufacturing highly durable and intricately detailed alloy steel components tailored to meet the demanding requirements of a wide range of industries, including automotive, electronics, heavy machinery, aerospace, and many others. Our expert craftsmanship ensures that each part is produced with extremely tight tolerances and flawless surface finishes, guaranteeing optimal performance, reliability, and longevity in every application. Whether you need complex geometries or high-volume production runs, our advanced machining capabilities and rigorous quality control processes deliver components that exceed industry standards and customer expectations.

cnc alloy steel 1

Advantages of Alloy Steel Parts

CNC machining alloy steel provides numerous advantages, making it a preferred choice for precision manufacturing across industries like aerospace, automotive, and heavy machinery. Here's a breakdown of the main benefits:

Superior Strength and Durability

Ideal for high-stress applications requiring wear and impact resistance.

Precision and Tight Tolerances

Ensures accurate, high-quality parts for complex machinery.

Versatility and Customization

Easily machined into a wide range of components with flexible design options.

Cost-Effective Production

Efficient for both prototyping and large-scale manufacturing with consistent quality.

Chemical Composition of Alloy Steel

The table below summarizes the chemical composition of the alloy steel grades mentioned—such as AISI 4140, AISI 4340, AISI 8620, AISI 1045, AISI 1018, and AISI 5160—expressed as weight-percent ranges for each element. “Balance” indicates that the remainder of the alloy consists primarily of iron.

Element C Mn Si Cr Ni Mo S P Fe
AISI 1018 0.15–0.20 0.60–0.90 0.20–0.35 ≤0.05 ≤0.04 Balance
AISI 1045 0.43–0.50 0.60–0.90 0.20–0.35 ≤0.05 ≤0.04 Balance
AISI 4140 0.38–0.43 0.75–1.00 0.15–0.35 0.80–1.10 0.15–0.35 0.15–0.25 ≤0.04 ≤0.035 Balance
AISI 4340 0.38–0.43 0.60–0.80 0.15–0.35 0.70–0.90 1.65–2.00 0.20–0.30 ≤0.04 ≤0.035 Balance
AISI 8620 0.18–0.23 0.70–0.90 0.15–0.35 0.40–0.60 0.40–0.70 0.15–0.25 ≤0.04 ≤0.035 Balance
AISI 5160 0.56–0.64 0.75–1.00 0.15–0.35 0.70–0.90 0.15–0.30 ≤0.04 ≤0.035 Balance

 

Physical & Mechanical Properties of Alloy Steel

Property AISI 1018 AISI 1045 AISI 4140 AISI 4340 AISI 8620 AISI 5160
Density (g/cm³) 7.87 7.87 7.85 7.85 7.85 7.85
Tensile Strength (MPa) 440 – 560 570 – 700 655 – 850 745 – 1080 580 – 760 850 – 960
Yield Strength (MPa) 370 – 440 310 – 520 415 – 655 470 – 895 415 – 620 620 – 860
Elongation (%) 15 – 20 12 – 16 12 – 16 12 – 18 14 – 18 12 – 15
Hardness (Brinell, HB) 120 – 180 170 – 210 197 – 241 217 – 321 181 – 229 246 – 321
Modulus of Elasticity (GPa) 205 210 205 205 205 210

 

CNC Alloy Steel Machining Service

Selecting an appropriate supplier for your brass fabrication requirements is essential to guarantee superior quality, exactness, and streamlined operations in your manufacturing workflow. Boasting more than 17 years in precision CNC brass machining, rely on Anebon to provide top-tier outcomes that support your company's expansion.

AISI 1018

 

 

AISI 1018 is a low-carbon alloy steel known for its excellent weldability, machinability, and good ductility. It typically contains around 0.18% carbon, making it softer and more malleable than higher-carbon steels. This grade is commonly used for parts requiring good strength but easy machining, such as gears, shafts, bolts, and studs. Its low carbon content allows for decent toughness and it can be hardened via carburizing. Due to its balanced properties, AISI 1018 is a common choice in manufacturing and structural applications where moderate strength and good surface finish are needed.

Circular Flange with Countersunk Screw Ports
AISI 1045

 

 

AISI 1045 is a medium-carbon steel containing about 0.45% carbon that offers increased strength and hardness compared to low-carbon grades. It combines good machinability with excellent wear resistance and toughness. This alloy is widely used in shafts, bolts, gears, and machine parts where greater mechanical strength is needed. It responds well to heat treatment, such as quenching and tempering, which enhances its hardness and fatigue resistance. AISI 1045 is a popular choice in automotive and heavy machinery applications due to its cost-effectiveness and reliable mechanical properties.

Circular Machined Mounting Plate 
AISI 4140

 

 

AISI 4140 is a chromium-molybdenum alloy steel known for its high tensile strength, toughness, and good wear resistance. It usually contains about 0.40% carbon along with chromium and molybdenum, which improve hardenability and corrosion resistance. This versatile alloy is used extensively in manufacturing parts like gears, crankshafts, valve bodies, and heavy-duty automotive components. It performs well under heat treatment and offers excellent fatigue strength. AISI 4140 is favored in aerospace, oil and gas, and industrial equipment sectors for its balance of strength and toughness.

Precision Machined Cylindrical Sleeve
AISI 4340

 

 

AISI 4340 is a high-strength alloy steel containing nickel, chromium, and molybdenum. It is known for its outstanding toughness, fatigue strength, and resistance to wear and impact. This grade typically has about 0.40% carbon and responds well to heat treatment, allowing it to achieve very high hardness levels without brittleness. Used in aerospace, military, automotive, and heavy machinery, AISI 4340 is ideal for components like aircraft landing gear, crankshafts, and high-stress structural parts. Its combination of strength and toughness makes it reliable for demanding, safety-critical applications.

Precision Machined Flanged Collar
AISI 8620

 

 

AISI 8620 is a low-alloy steel known for its excellent hardenability, toughness, and wear resistance. It contains nickel, chromium, and molybdenum as alloying elements, which promote case hardening—forming a hard surface while retaining a tough core. This makes it popular for carburized parts such as gears, camshafts, and sprockets that require a durable wear surface but also need to absorb impact. Widely used in automotive and industrial machinery, AISI 8620 offers a combination of strength, ductility, and fatigue resistance, making it a versatile and cost-effective alloy steel.

Stepped Flanged Collar
AISI 5160

 

 

AISI 5160 is a high-carbon chromium alloy steel renowned for its excellent toughness, spring properties, and abrasion resistance. With about 0.55–0.65% carbon and 0.70–0.90% chromium, this steel is commonly used for heavy-duty springs, saw blades, and automotive parts such as leaf springs and torsion bars. It responds well to heat treatment and can achieve high hardness while maintaining flexibility. AISI 5160 is favored in applications that demand strong impact resistance combined with good fatigue life, making it ideal for performance-critical mechanical components.

Threaded Plunger Pin

Surface Treatment of Alloy Steel

Following lacquering, the exterior of industrial alloy steel profiles becomes highly durable, with the protective coating exhibiting elevated hardness. As a result, it demonstrates strong resistance to abrasion and provides enhanced protection against scratches after lacquering.
The lacquer coating on treated alloy steel is non-conductive, making lacquering essential for applications requiring electrical insulation or surface protection.
Certain alloy steel components require surface coating with paint; the textured surface of lacquered alloy steel offers excellent adhesion properties, ensuring the paint applies more evenly and results in a smooth, aesthetically pleasing finish.
The lacquer film on alloy steel remains clear and thin, making the protective layer nearly invisible to the naked eye, while effectively blocking air and moisture contact to prevent corrosion and oxidation of the steel surface.

Threaded Shoulder Bolt (Flat-Head Style)

Applications of Alloy Steel Parts

Oil and gas industry

Oil and gas industry

Used to produce critical components such as pipelines and valves for high-temperature, high-pressure applications.

Aerospace Alloy Steel

Aerospace

Used in manufacturing high-stress, high-performance components such as aircraft landing gear and turbine blades.

Chemical and petrochemical sector Alloy Steel

Chemical and petrochemical sector

Suitable for chemical processing equipment in high-temperature, highly corrosive environments, including applications involving chlorides, organic acids, catalytic systems, and pressure vessels.

Energy sector Alloy Steel

Energy sector

Infrastructure components for wind turbines and solar panels, which combine strength and corrosion resistance, are designed to withstand harsh environments.

Advantages of Anebon

If you're searching for top-tier CNC alloy steel machining services, consider Anebon as your ideal choice. Equipped with advanced facilities and skilled experts, we stand as a leading supplier of alloy steel machined parts, handling every phase from initial design through to production. Let Anebon manage these responsibilities to ensure precision and reliability. Reach out today to discuss bringing your ideas to life.

Premium Materials

We utilize top-grade raw materials to deliver exceptional quality.

Cost-Effective Pricing

Budget-friendly solutions that maintain high standards.

Global Shipping

Dependable delivery services to destinations worldwide.

Fast Custom Samples

Quick, personalized sample manufacturing tailored to your requirements.

Gallery Of Our Alloy Steel Parts

Black Alloy Hex Head Male Threaded Pipe Adapter

Black Alloy Hex Head Male Threaded Pipe Adapter

Stepped Flanged Collar

Stepped Flanged Collar

Zinc Plated Steel Flanged Locking Ring

Zinc Plated Steel Flanged Locking Ring

Precision Machined Cylindrical Sleeve

Precision Machined Cylindrical Sleeve

Threaded Shoulder Bolt (Flat-Head Style)

Threaded Shoulder Bolt (Flat-Head Style)

Hexagonal Threaded Pipe Fitting Adapter

Hexagonal Threaded Pipe Fitting Adapter

Circular Machined Mounting Plate

Circular Machined Mounting Plate

Steel 1018 Precision Machined Circular Flanged Spacer

Steel 1018 Precision Machined Circular Flanged Spacer

Try Anebon Now!

Discover high-quality alloy steel parts from Anebon that provide outstanding performance and customized production flexibility to meet all your CNC machined alloy steel requirements. With precision engineering and reliable durability, Anebon's components are designed to excel in a wide range of industrial applications. Select Anebon as your preferred manufacturing partner for innovative solutions and consistent excellence in alloy steel machining. Trust Anebon to deliver superior products offering competitive advantages tailored to your specific project needs.

CNC ALLOY STEEL

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