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AISI/SAE 1018 Round Steel Bar
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AISI 1018 carbon steel bar has a chemical composition of carbon, chromium, manganese, molybdenum, phosphorus, sulfur and silicon. AISI 1018 carbon steel is a free machining grade that is the most commonly available grade around the world.
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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



AISI/SAE  1018 Round Steel Bar Description
1018  cold rolled steel bar 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 NameAISI/SAE 1018 Round Steel Bar
StandardEN/DIN/JIS/ASTM/BS/ASME/AISI, etc.
Common  Round Bar Specifications3.0-50.8 mm, Over 50.8-300mm
Flat  Steel Common Specifications6.35x12.7mm, 6.35x25.4mm, 12.7x25.4mm
Hexagon  Bar Common SpecificationsAF5.8mm-17mm
Square  Bar Common SpecificationsAF2mm-14mm, AF6.35mm, 9.5mm, 12.7mm, 15.98mm, 19.0mm, 25.4mm
Length1-6meters, Size Accept Custom
Diameter(mm)Hot Rolling  Round Bar25-600Cold  Rolling Square Bar6-50.8
Hot Rolling Square Bar21-54Cold  Rolling Hexagon Bar9.5-65
Cold Rolling Round bar6-101.6Forged Rebar200-1000
Surface ProcessBright, Polished, Black
Other  ServicesMachining(cnc), Centerless Grinding(cg), Heat  Treatment, Annealing, Pickling, Polishing, Rolling, Forging, Cutting,  Bending, Small Machining, etc.
Chemical Composition
Carbon SteelCFeMnPS
10180.14-0.20%98.81-99.26%0.60-0.90%0.04%0.05%
Mechanical Properties
Tensile  StrengthYield StrengthElongation %Hardness(Brinell)Hardness(Rockwell B)
440MPa370MPa2212671
Scope of  Application
Carburized  parts, including worms, gears, pins, pins, tools and non-critical parts of  mold sets; tool brackets, pinions, mechanical parts, ratchets, positioning  pins and chain pins.



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PRODUCT DISPLAY

We adopt high standard production processes, select high-quality steel raw materials, and provide diverse product specifications and models. All steel products have passed strict quality testing, with smooth and even surfaces, precise dimensions, excellent compressive strength, corrosion resistance, and processability. Support customized thickness, length, and special process requirements to meet different usage standards in different scenarios. Clear display of high-definition detailed images and technical parameter tables of the physical object, ensuring transparent and visible quality.

PRODUCT APPLICATION

This product is widely used in the fields of building structures, mechanical manufacturing, automotive parts, energy equipment, and home hardware, and is suitable for scenarios such as load-bearing frames, precision parts, and industrial pipelines. With excellent physical performance and stability, it can easily meet the demands of high strength, high wear resistance, and extreme environments. Support collaboration with engineering teams to provide material selection suggestions and assist clients in efficiently implementing their projects.


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PRODUCT PACKAGING

Adopting a professional industrial packaging solution that is moisture-proof and scratch resistant, each batch of steel is tied and fixed with customized wooden frames/steel strips, combined with anti rust coatings and cushioning pads to ensure zero damage during transportation. Clear product model, batch number, and storage identification on the outer packaging, supporting customized enterprise logos and information labels. Environmentally friendly and recyclable packaging materials practice green concepts, reducing transportation and disassembly costs.

FACTORY DISPLAY

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FAQ

Q1: Do you pack the products?

A: Yes, in general, we will strictly pack the fragile products, such as stainless steel, aluminum, etc. to prevent the products from being scratched. We can also pack the goods according to the customer's requirements.

Q2: Can you provide samples?

A: Yes, we can provide free samples, but customers need to bear the transportation costs.

Q3: How do you guarantee the quality of your products?

A: Our factories are professionally certified, and each product is inspected piece by piece according to domestic and international QA/QC standards. We can also show the product quality certificate to customers.

Q4: Do you make customized products?

A: Yes, we have many years of experience in product customization and can tailor products for you according to your specific requirements.

Q5: Do you accept third-party inspection?

A: We accept third-party inspection: SGS, V-trust, TUV, DNV and other third-party inspections.

Q6: What are your payment terms?

A: We accept 30% T/T advance payment and 70% balance before delivery. We will show you the photos of the products and packages before you pay the balance.

Q7: What are your delivery methods?

A: EXW, FOB, CIF, CFR, DDU, etc.

Q8: What is your delivery time?

A: For stock products, we can deliver the goods to the loading port within 3-7 days after receiving your advance payment. For production cycle, it usually takes about 15 to 30 days after receiving the deposit.

Q9: Do you have discounts for large orders?

A: Our company has the ability to supply large projects and also has very good preferential policies for large orders.

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