Hot Rolled Carbon Steel Round Bars S50C

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50 m.t.
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120000 m.t./month

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Product Description:

 Hot Rolled Carbon Steel Round Bars S50C


Product Specification

1, Chemical Composition %


2, Mechanical Properties 

Strength of Extension σbYield Strength  σs

Reduction of Area ψ

Elogation δ5Hardness
≥630(64) Mpa≥375(38) Mpa≥40%≥14%≤241HB

3, Diameter: 16mm - 300mm

    Length: Max 12m



1, Used as base plate of cold working die.

2, Used as fix plate of drill jig.

3, Used as standard template material.


Product Main Points

1, Heat Treatment: normalizing, annealing, tempering, quenching

2, Surface Treatment: black, grinding, bright, polish

3, Product Process: hot rolled, cold drawn, forged



1,  Payment Terms:

      30% T/T deposit & 70% T/T before delivery.

      Irrevocable L/C at sight

2, Trade Terms:


3, Delivery Time:

     Normally 30-40 days. According to quantity.

4, Manufacture or Trading Company:

    CNBM is a state-owned fortune global 500 trading company. We have intergrated supply system.

    There are about 20 overseas locations in different countries.


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Hot Rolled Carbon Steel Round Bars S50C


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Hot Rolled Carbon Steel Round Bars S50C


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Hot Rolled Carbon Steel Round Bars S50C

Hot Rolled Carbon Steel Round Bars S50C


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Q:Difference between forging and round steel
The castings need to be uniform in each piece without any porosity, excess space, inclusions, or other defects. The component produced by this method has a high ratio of strength to weight. These elements are usually used in aircraft structures.
Q:Why is round steel more expensive than thread steel?
Round steel has a wide range of applications, many brands and different uses. Such as machining, shipbuilding and other user processing requirements are also different. Such as alloy round steel, Q345B, high carbon steel, 45#, 35#, general round Q235B, mainly material, ingredients, etc..
Q:Difference between round bar and other steel bars
Round steel is a solid strip of steel whose cross section is round. The specifications are expressed in millimeters of diameter, such as "50", which means a round bar of 50 millimeters in diameter.
Q:Are more bars used in high-rise buildings?
Look at the architectural design requirements and seismic grade, light steel reinforcement is mainly stirrups, columns, beams, shear walls generally use thread steel, plate bars and distribution bars are generally cold and twisted steel bars
Q:What kind of steel bars are used in general civil buildings?
In the general construction of commonly used hot rolled round bar (commonly known as round steel), hot rolled ribbed steel bars (commonly known as steel), the two most widely used steel. Identified as HPB235, the diameter of 6.5, 8, 10, 12, and then rough is not commonly used, and in the 6.5 and 8 most as commonly used, used as column, main reinforcement and stirrups and plate reinforced beam distribution.Steel is the HRB335, the diameter of 12 to 22, 25, 28, even 32, and then rough generally appear in the mass concrete construction, not commonly used, generally below 25 is commonly used in masonry structure in rural low level below 16 is most commonly used. Used as beams, columns, main bars and stand bars, etc.
Q:How to make the round welds on flat steel flat and qualified?
On both sides of the steel and welded steel plate, each side of the weld length of 5 times the diameter of reinforcement, welding seam should be welded into a convex arc that is.
Q:Which is hard, round steel or screw steel?
If the diameter is the same, of course, the rebar is of great hardness.Round steel is a solid strip of steel whose cross section is round. The specifications are expressed in millimeters of diameter, such as "50", which means a round bar of 50 millimeters in diameter.
Q:Is steel bar round wire? What's the difference? What are the main applications of wire rod?
Round bar is divided into three parts: hot rolling, forging and cold drawing. Standard Specification for hot rolled round steel is 5.5-250 mm. Of them: 5.5-25 mm small round bars are mostly supplied by straight strips. They are used as reinforcing bars, bolts and various mechanical parts. They are more than 25 millimeters of round steel. They are mainly used in the manufacture of mechanical parts or seamless steel tube billets.
Q:How can stainless steel rounds occur? Is it a quality problem?
Cracks caused by surface folding, cracks and steel surface of 15 degrees to 75 degrees angle, about 1.5 ~ 3.5mm, tail vortex shape, slightly decarburization on both sides, decarburization layer 0.15 ~ 0.25mm, crack in the presence of oxide scales. Its macro shape is in the surface of the round steel along the rolling direction into a straight line or zigzag, continuous or intermittent appear in the partial or full length of steel. This shows that this is a folding process in the process of rolling steel. Main reasons of folding is finished before the workpiece with a handleonapot; secondly, in the process of rolling each pass from the handle, flash, serious scratch, damage, and roll ring groove wear etc., can make the product surface folding; in addition, such as the serious defect of blank, if cleaning may also be caused by improper finished folding. Therefore, the main measures to reduce or avoid folding appear: pass through reasonable design, accurate estimation of the spread, precisely adjust the position of roller groove, reduce or eliminate the finished product before rolling the handle, flash, scratches and other defects; the serious defects of the blank surface carefully cleaned.
Q:Do you need paint for roof lightning proof steel bars?
The roof of the round steel as long as the welded joints painted anti rust paint is good, should not be painted a large area. When the flash device is made of steel material, hot-dip galvanized steel shall be used and corrosion resistant by zinc plating.

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