SAE 1018 Round Bars are low-carbon steel bars valued for their combination of machinability, weldability, ductility and dependable mechanical performance. Also identified as AISI 1018 or UNS G10180, this carbon steel grade is widely selected for general engineering components, machined parts, shafts, pins, studs, rollers, bushings and fabricated components where a balance of strength and ease of processing is important. Jineshwar Steels supplies SAE 1018 Round Bars in different diameters, lengths and surface conditions to meet the requirements of engineering manufacturers, fabricators, machine shops, construction companies and industrial procurement teams. Depending on project requirements, bars can be supplied in hot-finished or cold-finished conditions, subject to availability and agreed specification. SAE 1018 is particularly useful where components require machining, drilling, turning, threading or moderate forming operations. Its relatively low carbon content also makes it suitable for conventional welding applications when appropriate procedures are followed. The material chemistry should always be verified against the applicable purchase specification and material test certificate before use in critical applications.

As a leading manufacturer, exporter and supplier, Jineshwar Steels focuses on supplying carbon steel round bars with consistent dimensions, traceability and documentation. The grade is commonly associated with ASTM A108 requirements for cold-finished carbon steel bars, while the SAE grade chemistry is defined through SAE J403. The actual specification, dimensional tolerance, finish, heat treatment and testing requirements can be selected according to the customer's drawing, purchase order or applicable standard. Customers looking to buy SAE 1018 Round Bars can request material in standard commercial lengths or discuss cut-to-length requirements. The ability to source different sizes and quantities makes the product suitable for both regular industrial procurement and project-specific requirements. Rather than treating every order as a generic steel purchase, Jineshwar Steels can coordinate material documentation and inspection requirements according to the agreed order specification, helping buyers make informed decisions based on chemistry, dimensions, mechanical properties and delivery condition.

Table of Contents

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SAE 1018 Round Bars Specifications

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SAE 1018 Round Bars Chemical Composition

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SAE 1018 Round Bars Mechanical Properties

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SAE 1018 Round Bars Applications

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SAE 1018 Round Bars Latest Price List

One of the main advantages of SAE 1018 Round Bars is their versatility. The grade has a relatively low carbon level and a moderate manganese content, giving it useful ductility and machinability while retaining adequate strength for numerous general-purpose applications. Cold-finished 1018 round bar can provide improved dimensional accuracy and surface finish compared with conventional hot-finished material, making it attractive for components requiring closer dimensional control. Typical applications include shafts, pins, axles, studs, bolts, spacers, couplings, rollers, bushings, machine components and other precision-machined parts. The grade is also used where subsequent carburizing or case-hardening may be required for suitable component designs. However, heat treatment and surface-hardening results depend on the component geometry, processing route and required properties, so engineering validation remains important. Jineshwar Steels can supply material according to the required size, condition and documentation agreed with the customer.

For buyers comparing different carbon steel grades, SAE 1018 can be an economical option when high alloy content, corrosion resistance or very high hardenability is not required. It is not a stainless steel and should not be selected solely for corrosion-resistant service. Instead, its strength lies in its straightforward processing characteristics, good machinability and suitability for general engineering work. A trusted supplier should therefore provide clear grade identification, dimensions, condition and supporting documentation rather than simply quoting a generic "mild steel round bar." Jineshwar Steels works with customers to identify the appropriate product form and specification before order confirmation. This approach can help reduce material-selection errors and ensure that the supplied round bars match the intended manufacturing process and application.

Jineshwar Steels can supply SAE 1018 Round Bars in a range of commercially required diameters and lengths, subject to mill availability and order quantity. Depending on customer requirements, options may include hot-finished, cold-finished, bright, peeled, turned, ground or machined surfaces where available and technically appropriate. Cold-finished material is particularly useful for applications where surface quality, dimensional consistency and machining performance are important. Customers can specify diameter, length, quantity, surface condition, applicable standard, inspection requirements and documentation during enquiry. Cut-to-length requirements can also be discussed for fabrication and machining applications. For larger industrial requirements, bars can be arranged in bundled quantities with identification and traceability information as applicable.

Parameter	Specification
Product Name	SAE 1018 Round Bars
Grade	SAE / AISI 1018
UNS	G10180
Material	Low Carbon Steel
Product Form	Round Bar
Applicable Standard	ASTM A108 where specified for cold-finished bars
Material Standard	SAE J403 / applicable purchase specification
Manufacturing Condition	Hot Finished / Cold Finished, as ordered
Surface Finish	Bright / Smooth / Peeled / Turned / Ground, subject to availability
Diameter	As per customer requirement and applicable tolerance
Length	Standard or Cut-to-Length, as specified
Shape	Solid Circular
Delivery Condition	As specified in purchase order
Testing	Chemical, Dimensional, Hardness, Tensile, Visual, as applicable
Documentation	Material Test Certificate / inspection documents as agreed

Grade	Carbon (C)	Manganese (Mn)	Phosphorus (P)	Sulfur (S)
SAE 1018	0.15–0.20%	0.60–0.90%	0.040% Max.	0.050% Max.

Grade	Tensile Strength	Yield Strength	Elongation	Brinell Hardness	Rockwell Hardness	Elastic Modulus	Density
SAE 1018	440 MPa (64 ksi)	370 MPa (54 ksi)	15% (in 2 in.)	126 HB	71 HRB	200 GPa (29 × 10⁶ psi)	7.85–8.0 g/cm³