Mild Steel 1045

45% carbon content. It has good strength, toughness, and wear resistance.

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Machined metal parts: housing, bushings, shafts on white

G10450
1.0503
C45

600-630 MPa

Ultimate Tensile Strength
310-320 MPa

Yield Strength
190-205 GPa

Young's Modulus(Elasticity)
16 %

Elongation at Break

At a Glance

Material Type
Metal
Material Name
Mild Steel 1045
Alternative Names
G10450 | 1.0503 | C45
Process Compatibility
CNC Milling, CNC Turning

Properties Table of Mild Steel 1045

Properties

Ultimate Tensile Strength 600-630 MPa
Yield Strength 310-320 MPa
Young's Modulus(Elasticity) 190-205 GPa
Elongation at Break 16%
Physical Properties
Corrosion Resistance Poor
Magnetism Semi-magnetic
UV Resistance Limited UV resistance
Weldability High
Thermal Properties
Maximum Service Temperature Approximately 550°C(1022°F)
Thermal Expansion Coefficient 11.2-12 x 10^-6/°C
Thermal Conductivity 51 W/(m·°C)
Electrical Properties
Electrical Resistivity 16-19 μΩ*cm
ESD Safety Generally conductive

Applications of Mild Steel 1045

Shafts
Axles
Gears
Machine components
Automotive parts
Fasteners

Advantages of Mild Steel 1045

Good machinability
Can be welded easily,
Good formability
High tensile strength
Good wear resistance

Raw Stock

CNC Machined

Finished Parts

Mild Steel 1045 — Machining Notes

Mild Steel 1045 in CNC M
is Mild Steel 1045?

Mild Steel 1045 in CNC Machining

Mild steel 1045 is a medium carbon steel with about 0.45% carbon content. It has good strength, toughness, and wear resistance.

It has excellent machinability and can be heat treated to enhance its hardness and strength. We use appropriate cutting tools, such as carbide inserts, for efficient machining. We optimize cutting speeds and feeds to prevent tool wear and achieve precise results. We lubricate and cool during machining to manage heat and extend tool life. 1045 typically provides a smooth surface finish, and it is weldable.

1045 carbon steel comes in various forms like sheet, bar, plate, hot rolled, annealed, and cold drawn types. In sheet form, it’s thin and flat. Bars are less than 8 inches wide, cylindrical, and known for strength and wear resistance. Plates are over 8 inches wide and offer strength and machinability. Hot-rolled 1045 steel is ductile and tough. Annealing modifies the steel’s structure and enhances machinability. Cold-drawn 1045 steel is known for its high strength.

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What is Mild Steel 1045?

Mild Steel 1045 is a strong and durable medium-carbon alloy with approximately 0.45% carbon content. It has high tensile strength and good machinability.

The manufacturing process of 1045 involves melting iron with carbon and other elements and then shaping the metal through rolling or forging.

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FAQ

Is 1045 steel durable?

Yes, 1045 carbon steel is a cost-effective option with excellent strength, machinability, and wear resistance. It's commonly chosen for applications like blades, cutting tools, and industrial knives facing wear and abrasion.

Is 1045 steel good for hammers?

1045 steel is excellent for hammers and tools as it balances hardness and toughness. Its straightforward heat treatment with water quenching gives impressive results.

Is 1045 stronger than 4140?

4140 steel is a strong alloy with chromium, molybdenum, and manganese, offering good toughness and strength. In comparison, 1045 steel has slightly higher tensile and yield strength due to a slightly elevated carbon content.