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Steel 1018（Mild Steel）

Material Type：Metal
Material Name：Steel 1018
Alternative Names：AISI 1018 | UNS G10180 | EN 1.0401 | C18
Process Compatibility：CNC Milling, CNC Turning, Welding, Heat Treatment (limited)
Steel CNC Machining Service的副本
Steel 1018
Description
Steel 1018 is a low-carbon steel with excellent weldability, machinability, and toughness. With a carbon content of about 0.18%, it offers good ductility and is widely used for parts requiring forming, bending, and moderate strength. Its low cost and availability make it one of the most common steels in general engineering.
Lead Time: < 10 days
Wall Thickness: 0.75 mm
Tolerances: ±0.005″ (±0.125mm)
Max Part Size: 200 cm x 80 cm x 100 cm
 
Classification of Metal Performance Parameters
Mechanical Properties Ultimate Tensile Strength 440
Yield Strength 370
Young’s Modulus / Elasticity 205
Elongation at Break 15
Hardness HB 120
Fatigue Strength 200
Physical Properties Density 7.87
Corrosion Resistance Poor
Magnetism Magnetic
Weldability Excellent
Impact Toughness Moderate
Thermal Properties Maximum Service Temperature 400
Thermal Expansion Coefficient 12
Thermal Conductivity 51.9
Creep Resistance Low
Electrical Properties Electrical Resistivity 15
Electrical Conductivity 10
Dielectric Strength N/A
Processing & Surface Treatment Machinability Good
Surface Finish Compatibility Good
Formability Good
Special Properties Biocompatibility No
Flame Retardancy Yes
UV Resistance Low
Recyclability Yes

Classification of Metal Performance Parameters

Introduction to Steel 1018

What
Steel 1018 is a mild/low-carbon steel containing approximately 0.18% carbon and 0.6–0.9% manganese. It is one of the most widely used steels due to its combination of strength, ductility, and machinability. Although it cannot achieve very high hardness, it is ideal for carburizing and case-hardening processes, which provide a hard surface and a tough core.
Advantages
Excellent weldability and machinability
High ductility and toughness
Cost-effective and widely available
Can be carburized for improved surface hardness
 
 
 
Applications
Shafts and spindles
Gears and pins (after carburizing)
Automotive parts
General machinery components
 
 
 

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