AISI/SAE 1018 Round Steel Bar

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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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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◉ FAQ

Q : Are you a manufacturer or just a trader?
A : We are a manufacturer. We can provide high quality products at competitive prices. Our company also has a trade department. Our company specialized in steel products more than 10 years, so we have established cooperative relationship with many steel enterprises. We can provide many types and specifications of steel products.
Q : Could you supply samples?
A : Sure, samples can be provided free of charge, and buyers pay the freight of the sample.
Q : How long does it take you to prepare the goods?
A : It takes seven to ten days for products under 25 tons, and within 15 days for products of 25-100 tons. Special specifications and large quantity of products will be discussed separately.
Q : What is your delivery time?
A : The time of delivery is usually around 15-20 days. We can send out in 2 days, if it has stock.
Q : What is your payment terms?
A : Our usual payment term is 30% deposit, and rest before delivery. L/C is also acceptable. EXW, FOB, CFR, CIF.

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