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1018 Cold Rolled Steel Coil

1018 Cold Rolled Steel Coil

AISI 1018 carbon steel is a free machining grade that is the most commonly available grade around the world. Although its mechanical properties are not very, it still can be easily formed, machined, welded and fabricated.
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Product Parameters

Carbon Steel: Properties, Production, Examples and Applications


Carbon steel is an iron-carbon alloy, which contains up to 2.1 wt.% carbon. For carbon steels, there is no minimum specified content of other alloying elements, however, they often contain manganese. The maximum manganese, silicon and copper content should be less than 1.65 wt.%, 0.6 wt.% and 0.6 wt.%, respectively.


Types of carbon steel and their properties


Carbon steel can be classified into three categories according to its carbon content: low-carbon steel (or mild-carbon steel), medium-carbon steel and high-carbon steel . Their carbon content, microstructure and properties compare as follows:


Carbon content (wt.%)MicrostructurePropertiesExamples
Low-carbon steel< 0.25Ferrite, pearliteLow hardness and cost. High ductility, toughness, machinability and weldability
Medium-carbon steel0.25 – 0.60MartensiteLow hardenability, medium strength, ductility and toughness
High-carbon steel0.60 – 1.25PearliteHigh hardness, strength, low ductility


Carbon Steel Description


Grade:


1)GB: Q195, Q215, Q235A, Q235B, Q235C, Q235D, Q255A, 255B, Q275, Q295A, Q295B, Q345B, Q345C, Q345D, Q345E, Q390A, Q390B, Q390C,Q390D, Q390E, Q420, Q420B, Q420C, Q420D, Q420E, Q460D, Q460E, Q500D, Q500E, Q550D, Q550E, Q620D, Q620E, Q690D, Q690E


2)EN: S185,S235JR, S275JR, S355JR, S420NL, S460NL S500Q, S550Q, S620Q, S690Q 


3)ASTM: Grade B, Grade C, Grade D, A36, Grade 36, Grade 40, Grade42, Grade 50, Grade 55, Grade 60, Grade 65, Grade 80 


4)JIS: SS330, SPHC, SS400, SPFC, SPHD, SPHE



PRODUCT DETAILS


1018   Cold Rolled Steel Coil
1018   cold rolled steel coil is made of a general-purpose, low-carbon steel with   good case hardening qualities. It is especially suited to cold   forming and bending operations. 1018 steel is suitable for parts   that require cold forming such as crimping, swaging, or bending. 1018 steel is mild steel with   medium-low carbon content. AISI 1018 carbon steel is a free machining grade   that is the most commonly available grade around the world. Although its   mechanical properties are not very unique, it still can be easily formed, machined,   welded and fabricated.
Product  Parameters
Product Name1018  Cold Rolled Steel Coil
Production  ProcessHot Rolling,  Cold Rolling
Material  StandardsAISI, ASTM,  ASME, DIN, BS, EN, ISO, JIS, GOST, SAE, etc.
Width100mm-3000mm
Length1m-12m, or  Customized Size
Thickness0.1mm-400mm
Delivery  ConditionsRolling,  Annealing, Quenching, Tempered or Standard
Surface  ProcessOrdinary, Wire  Drawing, Laminated Film
Chemical  Composition
ElementContent (%)
Manganese,  Mn0.60-0.90
Carbon, C0.15-0.20
Sulfur, S0.05  (max)
Phosphorous, P0.04  (max)
Iron, FeBalance
Mechanical  Properties
PropertiesMetricImperial
Tensile  strength440 MPa63800 psi
Yield strength370  MPa53700  psi
Modulus of elasticity205  GPa29700  ksi
Shear modulus (typical for steel)80  GPa11600  ksi
Poisson’s ratio0.290.29
Elongation at break (in 50 mm)15%15%
Hardness, Brinell126126
Hardness, Knoop (converted from Brinell hardness)145145
Hardness, Rockwell B (converted from Brinell hardness)7171
Hardness, Vickers (converted from Brinell hardness)131131
Machinability (based on AISI 1212 steel. as 100 machinability)7070
Scope of  Application
AISI  1018 carbon steel is commonly used in high volume screw machine parts  applications. The other applications of this alloy are as follows:
● Shafts
●  Spindles
● Pins
● Rods
●  Sprocket assemblies.


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1018 Cold Rolled Steel Coil


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1018 Cold Rolled Steel Coil


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1018 Cold Rolled Steel Coil


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FAQ

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All our steel products are manufactured using genuine materials that meet national standards; we strictly adhere to national production regulations and strictly prohibit the use of non-standard specifications, adulterated materials, or defective goods. For every shipment, we provide a complete set of documentation—including material specifications, quality inspection reports, and factory certificates—free of charge. Our products support third-party re-inspection, on-site acceptance, and project filing, ensuring full traceability of quality throughout the process.

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We support custom processing for a full range of steel products. For items such as steel plates, profiles, pipes, and round bars, we provide tailored services—including cutting, bending, drilling, trimming, beveling, anti-corrosion painting, and hot-dip galvanizing—based on client construction drawings and on-site requirements. We can process materials to any dimension or non-standard specification, meeting the unique needs of various engineering projects and equipment manufacturing applications.

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We offer free sample delivery. To ensure peace of mind during the procurement process, we provide steel samples matching your specifications, allowing you to verify material quality, check manufacturing processes, and facilitate acceptance inspections by the project owner. Testing samples prior to placing bulk orders helps minimize procurement risks.

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Steel is a commodity with prices that fluctuate in real-time based on futures markets, raw material costs, and inventory levels; since fixed list prices can lead to discrepancies, we provide standardized, real-time manual quotes. All pricing is transparent with no hidden costs; quotes can be provided on either a tax-inclusive or tax-exclusive basis, and special VAT invoices can be issued upon request.

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Our company has no strict minimum order quantity requirements and supports various procurement models, including small-scale purchases, bulk stocking, and full-order supply for engineering projects. We can handle orders ranging from small top-up supplies for construction sites and ad-hoc store purchases to bulk procurement for large-scale projects, flexibly meeting the diverse needs of our customers.

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We support monthly settlement and deferred payment terms for high-quality project clients and long-term partner distributors. Long-term partners enjoy exclusive pricing, as well as priority in order scheduling and shipment; please contact your account manager to discuss specific partnership policies.

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