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Astm A106 Medium Carbon Steel Rod

Product Introduction of Carbon Steel Rod

We are the supplier of carbon steel round bar inventory demand. We provide products in various sizes and strengths, with the purpose to meet the specific applications of our customers’ own needs.

Astm A106 Medium Carbon Steel Rod

Product NameCarbon Steel Rod
Length1-600mm or as required
DiameterAs required
StandardASTM A106 , ASTM A53 , API5L B , ASTM A179, ASTM A210 , ANSI B36.10, GB 5310, GB6479, GB9948, GB/T17396GB 3087, GB/T 8162 , GB/T8163, etc
MaterialA516, A36,1020, 1045, 1060, 1036,1040,1043, A105, A106-B,  A53-B, A106-A, A53-A, etc
TechniqueCold/Hot rolled, Cold-Drawn  or Hot Forged
ShapeRound, Square, Rectangle, Oval, Coil, Flexible Pipe, Shaft,’U’ Shape, Etc
Surface TreatmentPrime quality (bared, oiled, color paint, 3LPE, or other anti-corrosive treatment)
ApplicationWidely used in Structure, Accessorize,Construction,Fluid transportation,machinery parts,the stress parts of the automobiletractor parts and so on
TestLiquid delivery,structure pipe,construction,petroleum cracking,oil pipe,gas pipe
PackageStandard export package, suit for all kinds of transportation, or as required
MOQ1 ton, sample order accepted
Serive24-hour reply to customer’s enquiry

Classification and Features of Astm A106 Medium Carbon Steel Rod

Features of carbon steel rods:

The texture is hard and brittle, with a small expansion coefficient, can withstand rapid cooling and heating, is not easy to deform, has good chemical stability, strong acid resistance, does not react with strong acids, and has poor alkali resistance, and can corrode and decompose the rod body at high temperatures.

Classification of carbon steel rods:
Round carbon steel bars: mainly used for root cleaning of welds, back grooving and clearing of welding defects, etc.;
Rectangular carbon steel bar: used to plan the temporary weld bead and scar left on the component, remove the excess height of the weld, and carbon arc cutting;
Connected carbon steel bar: suitable for automatic or manual welding torches, continuous feeding can reduce the loss of residual carbon bars during use, high running groove accuracy, smoothness and uniformity, good stability and high efficiency.

FAQ

The corrosion resistance of stainless steel coils decreases as the carbon content increases. Therefore, the carbon content of most stainless steels is low, up to 1.2%, and some steels have a low ωC (carbon content) of even less than 0.03% (such as 00Cr12). The main alloying element in stainless steel coil is Cr (chromium). Only when the Cr content reaches a certain value, the steel has corrosion resistance. Therefore, the goods Cr (chromium) content of at least 10.5%. Stainless steel coil also contains Ni, Ti, Mn, N, Nb, Mo, Si, Cu and other elements.

Most of the requirements for use are to maintain the original appearance of the building for a long time. In determining which type of goods to choose, the main considerations are the required aesthetic standards, the corrosiveness of the local atmosphere and the cleaning system to be used. However, other applications are increasingly seeking structural integrity or impermeability. Examples include roofs and sidewalls of industrial buildings. In these applications, construction cost to the owner may be more important than aesthetics, and the surface may not be very clean. The use of 304 stainless steel coils in dry interior environments is quite effective.

Weldability. Different product uses have different requirements for weldability. A class of tableware generally does not require weldability, even including some cookware companies. However, most products require raw materials with good weldability, such as second-class tableware, insulation cups, steel pipes, water heaters, water dispensers, etc.

 


Corrosion resistance. Most stainless steel coil products require good corrosion resistance, such as Class I or Class II tableware, kitchen utensils, water heaters, water dispensers, etc.

 


Polishing performance. In today’s society, stainless steel coil products in the production process are generally polished, only a few products such as water heaters, drinking fountains, etc. do not need to be polished. Therefore, this requires raw materials with good polishing performance.

1. The need for pre-treatment
Pretreatment is an important treatment step before the surface of stainless steel coil parts enter surface treatment (including pickling, chemical polishing and electrochemical polishing, electroplating, passivation, black coating, coloring, chemical treatment, etc.). During the forming process of goods parts, the surface may adhere to oil stains, burrs, rough surfaces and oxides. Therefore, before surface treatment, oil stains, burrs, uneven surfaces and oxides must be removed in order to obtain subsequent satisfactory results through processing.

2. Treatment of removed dirt

Stainless steel coil surface pretreatment in the need to remove the dirt can be divided into two categories: organic and inorganic substances.

(1) organic dirt. Including mineral oil (such as diesel, oil, paraffin, gypsum, etc.) and animal oil, vegetable oil (such as soybean oil, camellia oil, rapeseed oil, lard, butter, etc.). These oils are mainly from the stainless steel coil zero cattle processing process used in the lubricant. , cutting oil, quenching oil, polishing paste and polishing paste, and fingerprints.

(2) Inorganic dirt. Including dirt, dust particles, oxides and other contaminants generated during the heat treatment process.

3. Pretreatment steps for stainless steel coil parts

(1) The surface is mechanically leveled. Eliminate the roughness of the stainless steel coil surface, through mechanical polishing and grinding to achieve a surface finish.

(2) Degreasing. Remove the surface oil and dirt.

(3) Acid washing. Remove the oxides on the surface.

(4) Weak corrosion. Activates the surface to be treated, removes the surface passivation film, and exposes the metal crystal structure.

Stainless steel is a high-alloy steel, with a large resistance to rolling deformation. In order to carry out high-efficiency and high-precision rolling, rigid rolling mills should be used, generally multi-roller cold rolling mill.

 


Special welding process is also a feature of cold-rolled stainless steel coil production.

 


In the production process of cold rolled stainless steel coil, the raw material (hot rolled coil) should be annealed, intermediate annealing should be carried out in the cold rolling process, and the final product should be annealed, so annealing is an important part of the production.

 


Cold-rolled stainless steel is a high-grade steel products, there are strict requirements for surface quality. Not only are metallurgical defects caused by the previous process not allowed, but also obvious defects caused by the cold rolling process.

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