Carbon Structural Steel Round Bars Q235CR

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
25 m.t.
Supply Capability:
120000 m.t./month

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Product Description:

 Carbon Structural Steel Round Bars Q235CR

PRODUCT SPECIFICATION

1, Chemical Composition %

GradeCSiMnSPCr
Q235CR≤0.22≤0.35≤1.4≤0.050≤0.045≥0.30

2, Mechanical Properties 

Strength of Extension σbYield Strength  σsElogation δ5
375-500 Mpa≥235 Mpa≥25 %

3, Diameter: 9mm - 80mm

   

APPLICATION

 1, Widely used in construction and engineering structure.

 2, Widely used in making reinforcing steel bar or building plant room rack, high voltage transmission tower, bridge, vehicle, boiler, vessel, ship, etc.

 3, Widely used in manufacturing mechanical parts which are not required to be with high performance.

 4, Q235CR with grade C or D can be used as steel with special use.

 5,  Can be used in making all kinds of mould hand and other unimportant mould parts.

 6, Can be used as punch 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

 

FAQ

1,  Payment Terms:

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

      Irrevocable L/C at sight

2, Trade Terms:

     FOB, CIF, CNF

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.

 

PRODUCT SHOW

Carbon Structural Steel Round Bars Q235CR

ABOUT US

Carbon Structural Steel Round Bars Q235CR

Carbon Structural Steel Round Bars Q235CR

 

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Q:What is the tensile strength of round steel bars of diameter 28?
Round steel is a solid strip of steel whose cross section is round. Its specifications are expressed in diameter, in units of millimeters (mm), such as "50mm", which means a diameter of 50 millimeters of round steel.
Q:What kind of steel pipe is round steel?
A round bar is not a steel tube. In brief, its section is round, but it is solid, and the cross section of the pipe is hollow.
Q:Is round bar steel?
Round steel is the term of steel structure, and the requirement of material is different from that of concrete structure.
Q:Is yuan steel round steel?
The difference between steel and other steel: 1 is not the same, round shape light round, no pattern without ribs, other steel surface appearance is engraved or ribbed, cohesive force that cause steel and concrete, and the bond strength of steel and concrete in the other. 2 ingredients are different, round steel (grade a steel) belongs to ordinary low carbon steel, and other steel bars are mostly alloy steel.
Q:Grade 1 steel is round steel, grade two steel is ribbed thread steel. Are the weight of the two units the same?
Grade two steel is ribbed steel, but the average diameter is calculated. The chemical composition of grade steel and grade two steel is different, but the density of them is the same. Therefore, the unit weight of grade 1 steel and grade two steel is the same.
Q:What kind of steel is used for anchor bolt material? What's the quality of anchor bolt material?
The anchor bolt can be divided into fixed anchor bolt, movable anchor bolt, expansion anchor, anchor bolt and bond anchor bolt. According to the different shapes, they are divided into: L type embedded bolt, 9 type embedded bolt, U type embedded bolt, welding pre embedded bolt, bottom plate embedded bolt
Q:Are lightning checks required for galvanized steel, flat steel and round steel?
No, when purchasing hot galvanized round steel and flat steel, please offer the factory certificate and inspection certificate.
Q:Which is stronger, steel pipe or round steel? Which is good at bending?
The strength of the steel pipe is slightly lower, but its weight is light, so as long as the wall thickness is reasonable, the experienced designer uses steel pipe instead of round steel.Like me, that's it
Q:How about tempering No. 45 round bar?
During quenching and tempering, the whole section of the workpiece is quenched and the microstructure of the workpiece is obtained with fine acicular quenched martensite. By tempering at high temperature, the microstructure with uniform tempered bainite is obtained. It is impossible for a small factory to do metallographic analysis of each furnace. It is generally used only for hardness testing. That is to say, the hardness of the quenched material must be reached by the quenching hardness of the material, and the hardness after tempering shall be checked according to the requirements of the drawing.
Q:How can stainless steel rounds occur? Is it a quality problem?
Cracks caused by inclusions in steel, cracks and steel surface of a certain angle, about 1 ~ 2.5mm, slightly decarburization on both sides, decarburization layer 0.10 ~ 0.15mm. There are inclusions on both sides of the crack and in the tail, and the ferrite band is formed

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