CK45 / C45 / AISI 1045
Medium carbon round bar with good machinability and balanced wear resistance.
CK45 (EN 1.1191) is widely used for mechanical components that need strength, wear resistance, and practical post-processing.
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- Grade or equivalent standard
- Diameter, length, and quantity
- Delivery condition and surface condition
- Application, inspection requirements, and destination
Buyer Details
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CK45 / 1045
Key point
Good machinability for general machine parts.
Commonly chosen when the buyer wants a practical round bar for turning and finishing.
Product Summary
Practical carbon steel for everyday industrial machining.
The clean version below keeps the sourcing details buyers actually use in first-round technical review.
Introduction
CK45 (EN 1.1191) / C45 / AISI 1045 is a medium carbon steel widely used for mechanical components requiring good strength and wear resistance. The material offers good machinability and can be heat treated to improve mechanical properties.
Equivalent grades
EN
C45 / 1.1191
ASTM
AISI 1045
DIN
CK45
JIS
S45C
Detailed source notes 45 more points
GB
45#
Chemical composition
C
0.42 - 0.50
Si
0.17 - 0.37
Mn
0.50 - 0.80
Mechanical properties
Tensile strength
≥ 600 MPa
Yield strength
≥ 355 MPa
Elongation
≥ 16%
Specifications
Form
Round bar
Diameter
20 - 350 mm
Length
3 - 12 m
Condition
Hot rolled / Normalized / Annealed
Machine shafts
Gears
Bolts and studs
Automotive components
General machinery parts
Manufacturing options
Hot rolled or normalized supply
Annealed condition available
Rough machining support
Customized lengths on request
Inspection points
Chemical composition
Mechanical testing
Dimensional inspection
Surface condition review
Inquiry
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