Grade 1018 Cold Roll Flat Bar
1018 Cold Rolled Steel Flat Bars feature a smooth, dark grey oiled surface and precisely defined edges, making them ideal for applications where appearance, consistency, and dimensional accuracy are critical. Their uniformity allows for clean machining and minimal finishing.
1018 is a low carbon steel known for its excellent case hardening properties and close dimensional tolerances. Frequently used for jigs, templates, and machined components, it provides a balance of workability and strength suited for precision tooling and fixture applications.
C1018 Cold Finish Flat is a general-purpose low carbon steel ideal for cold forming and bending operations. Its combination of formability, surface finish, and strength makes it a versatile choice for brackets, supports, and structural components requiring post-fabrication processing.
C1018 Cold Finished Flat, also known as CRS Flat or Cold Roll Flat Bar, is engineered for tighter tolerances and smoother finishes than hot rolled alternatives. It is widely used in applications requiring consistent dimensional accuracy, such as precision shafts, tooling, and fixtures.
Cold finished steel flats offer improved tensile and yield strength, enhanced surface smoothness, and more consistent sizing compared to hot rolled bars. These characteristics make them a preferred material in manufacturing and engineering applications that demand both strength and precision.
1018 Cold Rolled Steel Flat Bars feature a smooth, dark grey oiled surface and precisely defined edges, making them ideal for applications where appearance, consistency, and dimensional accuracy are critical. Their uniformity allows for clean machining and minimal finishing.
1018 is a low carbon steel known for its excellent case hardening properties and close dimensional tolerances. Frequently used for jigs, templates, and machined components, it provides a balance of workability and strength suited for precision tooling and fixture applications.
C1018 Cold Finish Flat is a general-purpose low carbon steel ideal for cold forming and bending operations. Its combination of formability, surface finish, and strength makes it a versatile choice for brackets, supports, and structural components requiring post-fabrication processing.
C1018 Cold Finished Flat, also known as CRS Flat or Cold Roll Flat Bar, is engineered for tighter tolerances and smoother finishes than hot rolled alternatives. It is widely used in applications requiring consistent dimensional accuracy, such as precision shafts, tooling, and fixtures.
Cold finished steel flats offer improved tensile and yield strength, enhanced surface smoothness, and more consistent sizing compared to hot rolled bars. These characteristics make them a preferred material in manufacturing and engineering applications that demand both strength and precision.
Specifications
PageTitle
1018 Cold Rolled Steel Flat Bar, CRS Low Carbon Flat, Precision Machinable Stock
Production Method
Cold Finish
Additional Notes
1018 is suitable for applications that require threading, drilling, punching, and machining.
Extensively used in applications that do not require the greater strength of high carbon and alloy steels.
Extensively used in applications that do not require the greater strength of high carbon and alloy steels.
Applications
Used for pins, rods, shafts, spindles, and brackets.
Commonly used in machine, automotive, tool, and ornamental applications.
Used for mounting plates, spacers, and fixtures.
Suitable for carburized parts such as gears, ratchets, worms, pinions, pins, chain pins, dowels, and machine parts.
Commonly used in machine, automotive, tool, and ornamental applications.
Used for mounting plates, spacers, and fixtures.
Suitable for carburized parts such as gears, ratchets, worms, pinions, pins, chain pins, dowels, and machine parts.
Specifications
ASTM A108
AISI 1018; ASTM A108; UNS G10180
ASTM A108-07 is the standard specification for steel bar, carbon and alloy, cold-finished.
Finish: Smooth, Oily Finish; Sharp Corners
AISI 1018; ASTM A108; UNS G10180
ASTM A108-07 is the standard specification for steel bar, carbon and alloy, cold-finished.
Finish: Smooth, Oily Finish; Sharp Corners
Characteristics
Welding: Good
Machining / Grinding: Excellent
Bending / Forming: Fair
Wear Resistance: Fair
Corrosion Resistance: Poor
Machining / Grinding: Excellent
Bending / Forming: Fair
Wear Resistance: Fair
Corrosion Resistance: Poor
Chemical Composition
Iron (Fe): 98.81 - 99.26%
Carbon (C): 0.14 - 0.2%
Manganese (Mn): 0.6 - 0.9%
Phosphorus (P): 0.04% max
Sulfur (S): 0.05% max
Carbon (C): 0.14 - 0.2%
Manganese (Mn): 0.6 - 0.9%
Phosphorus (P): 0.04% max
Sulfur (S): 0.05% max
Mechanical Properties
Ultimate Tensile Strength: 70 ksi
Yield Strength: 58 ksi
Brinell Hardness: 126
Rockwell Hardness: B71
% Elongation: 15%
Shear Strength: 43,500 PSI (300 MPa)
Density: 0.284 lb/in³ (7.87 g/cc)
Melting Point: 2,590 - 2,670°F (1,420 - 1,460°C)
Yield Strength: 58 ksi
Brinell Hardness: 126
Rockwell Hardness: B71
% Elongation: 15%
Shear Strength: 43,500 PSI (300 MPa)
Density: 0.284 lb/in³ (7.87 g/cc)
Melting Point: 2,590 - 2,670°F (1,420 - 1,460°C)
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