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C45 Steel (SAE / AISI 1045) – DIN 1.0503 Material
C45 steel belongs to the group of medium carbon unalloyed steels, renowned for its high strength and good machinability. With approximately 0.45 % carbon content, it achieves a balanced combination of heat treatability and mechanical strength. These characteristics make it one of the most preferred steel grades in engineering and manufacturing industries.
Hasçelik manufactures C45 steel in full compliance with EN, DIN, and SAE/AISI standards, offering products in various dimensions, tolerances, and surface qualities to meet diverse industrial requirements. Modern production lines, including vacuum closed casting (VCC) and controlled rolling, ensure a homogeneous structure and high material performance.
With fast delivery from stock, customized cutting, and machining options, Hasçelik provides reliable C45 steel solutions for industries ranging from automotive and machinery manufacturing to mold making and hydraulic systems.
The C45 steel designation is based on the EN/DIN naming system:
• “C” indicates a carbon steel (unalloyed).
• “45” indicates an approximate carbon content of 0.45 %.
The same material is referred to by different codes in international standards:
• SAE / AISI 1045:
“10” series: simple carbon steels, low alloy steels
“45”: 0.45 % carbon content
• DIN 1.0503:
“1”: steel main group
“0503”: specific steel grade and analysis range
C45 steel is recognized under different names globally, with identical chemical composition and mechanical properties:
• USA (SAE/AISI): 1042, 1045, or Gr. 1043
• Germany (DIN/WNr): C45
• France (AFNOR): AF65C45 or C45
• UK (BS): 070M46 or 50HS
• Italy (UNI): 1C45 or C45
• Spain (UNE): C45k
• China (GB): 45
• ISO Standards: C45
These equivalencies allow consistent material identification in international trade. Hasçelik specifies these equivalent codes clearly in material certificates for export projects.
C45 steel is a medium carbon unalloyed steel that can be heat treated, offering high strength and good toughness. It is suitable for hardening and tempering to achieve high surface hardness. Its performance can also be enhanced by normalizing or induction surface hardening.
• Tensile Strength (Rm): 570 – 700 MPa
• Yield Strength (Re): ≥ 355 MPa
• Elongation at Break (A5): approx. 16 %
• Brinell Hardness (HB): 170 – 210 HB
• Carbon (C): 0.42 – 0.50 %
• Manganese (Mn): 0.50 – 0.80 %
• Silicon (Si): 0.10 – 0.40 %
• Phosphorus (P): max. 0.040 %
• Sulfur (S): max. 0.040 %
• Chromium (Cr): ≤ 0.40 %
• Nickel (Ni): ≤ 0.40 %
This composition provides good hardenability and machinability. The carbon content enables high surface hardness in hardening applications.
C45 steel (SAE/AISI 1045 – DIN 1.0503) is a medium carbon unalloyed steel that achieves high surface hardness while maintaining good core toughness after heat treatment. Common applications include:
1. Shafts and Axles
• Drive shafts
• Coupling shafts
• Industrial machine shafts
• Medium-load axle shafts
2. Gears and Mechanisms
• Medium-load gears
• Cam mechanisms
• Rollers and drums
3. Hydraulic and Pneumatic Components (with chrome plating or induction hardening)
• Hydraulic piston rods
• Cylinder shafts
• Guide shafts
4. Fasteners and Assembly Elements
• Bolts, shafts
• Dowel pins
• Centering pins
5. Fixtures and Jigs
• Fixture bodies
• Base plates
• Assembly jigs
C45 steel prices vary depending on production and supply conditions. Key factors include:
• Diameter and Length: Unit weight and price increase with size.
• Delivery Form: Raw (black) material, peeled, ground, or chrome-plated surfaces are priced differently.
• Production Method and Chemical Composition: Produced via vacuum closed casting (VCC) at Hasçelik’s modern steelworks, ensuring homogeneity and consistent mechanical properties. Chemical composition can be optimized for customer-specific requirements.
• Order Volume: Bulk purchases may offer stock advantages and special pricing.
• Cutting: Custom length cuts available on demand.
With vacuum closed casting and customized chemical composition options, Hasçelik ensures fast and reliable supply of C45 steel both in Turkey and for international export markets.
Products
C45 Steel (SAE / AISI 1045) – DIN 1.0503 Material
C45 steel belongs to the group of medium carbon unalloyed steels, renowned for its high strength and good machinability. With approximately 0.45 % carbon content, it achieves a balanced combination of heat treatability and mechanical strength. These characteristics make it one of the most preferred steel grades in engineering and manufacturing industries.
Hasçelik manufactures C45 steel in full compliance with EN, DIN, and SAE/AISI standards, offering products in various dimensions, tolerances, and surface qualities to meet diverse industrial requirements. Modern production lines, including vacuum closed casting (VCC) and controlled rolling, ensure a homogeneous structure and high material performance.
With fast delivery from stock, customized cutting, and machining options, Hasçelik provides reliable C45 steel solutions for industries ranging from automotive and machinery manufacturing to mold making and hydraulic systems.
The C45 steel designation is based on the EN/DIN naming system:
• “C” indicates a carbon steel (unalloyed).
• “45” indicates an approximate carbon content of 0.45 %.
The same material is referred to by different codes in international standards:
• SAE / AISI 1045:
“10” series: simple carbon steels, low alloy steels
“45”: 0.45 % carbon content
• DIN 1.0503:
“1”: steel main group
“0503”: specific steel grade and analysis range
C45 steel is recognized under different names globally, with identical chemical composition and mechanical properties:
• USA (SAE/AISI): 1042, 1045, or Gr. 1043
• Germany (DIN/WNr): C45
• France (AFNOR): AF65C45 or C45
• UK (BS): 070M46 or 50HS
• Italy (UNI): 1C45 or C45
• Spain (UNE): C45k
• China (GB): 45
• ISO Standards: C45
These equivalencies allow consistent material identification in international trade. Hasçelik specifies these equivalent codes clearly in material certificates for export projects.
C45 steel is a medium carbon unalloyed steel that can be heat treated, offering high strength and good toughness. It is suitable for hardening and tempering to achieve high surface hardness. Its performance can also be enhanced by normalizing or induction surface hardening.
• Tensile Strength (Rm): 570 – 700 MPa
• Yield Strength (Re): ≥ 355 MPa
• Elongation at Break (A5): approx. 16 %
• Brinell Hardness (HB): 170 – 210 HB
• Carbon (C): 0.42 – 0.50 %
• Manganese (Mn): 0.50 – 0.80 %
• Silicon (Si): 0.10 – 0.40 %
• Phosphorus (P): max. 0.040 %
• Sulfur (S): max. 0.040 %
• Chromium (Cr): ≤ 0.40 %
• Nickel (Ni): ≤ 0.40 %
This composition provides good hardenability and machinability. The carbon content enables high surface hardness in hardening applications.
C45 steel (SAE/AISI 1045 – DIN 1.0503) is a medium carbon unalloyed steel that achieves high surface hardness while maintaining good core toughness after heat treatment. Common applications include:
1. Shafts and Axles
• Drive shafts
• Coupling shafts
• Industrial machine shafts
• Medium-load axle shafts
2. Gears and Mechanisms
• Medium-load gears
• Cam mechanisms
• Rollers and drums
3. Hydraulic and Pneumatic Components (with chrome plating or induction hardening)
• Hydraulic piston rods
• Cylinder shafts
• Guide shafts
4. Fasteners and Assembly Elements
• Bolts, shafts
• Dowel pins
• Centering pins
5. Fixtures and Jigs
• Fixture bodies
• Base plates
• Assembly jigs
C45 steel prices vary depending on production and supply conditions. Key factors include:
• Diameter and Length: Unit weight and price increase with size.
• Delivery Form: Raw (black) material, peeled, ground, or chrome-plated surfaces are priced differently.
• Production Method and Chemical Composition: Produced via vacuum closed casting (VCC) at Hasçelik’s modern steelworks, ensuring homogeneity and consistent mechanical properties. Chemical composition can be optimized for customer-specific requirements.
• Order Volume: Bulk purchases may offer stock advantages and special pricing.
• Cutting: Custom length cuts available on demand.
With vacuum closed casting and customized chemical composition options, Hasçelik ensures fast and reliable supply of C45 steel both in Turkey and for international export markets.
