Carbon Structural Steel Square Bars Q235CR

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

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Product Description:

 Carbon Structural Steel Square 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, 9.8mm, 10mm, 12mm, 12.5mm, 13mm, 15mm, 15.87mm, 16mm, 19mm, 

                   20mm, 22mm, 25mm, 25.4mm, 28mm, 38mm, 50mm, 51.5mm, 53mm, 65mm, 75mm, 100mm

   

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

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Carbon Structural Steel Square Bars Q235CR

 

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Carbon Structural Steel Square Bars Q235CR

 

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Carbon Structural Steel Square Bars Q235CR

Carbon Structural Steel Square Bars Q235CR

 

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Q:Three - grade thread Phi 10 steel can replace a grade Phi 12 round bar? Which elder knows, trouble pointing.
Notes on reinforcement replacement1, steel replacement, to understand the design intent, the important components of the steel replacement, with the consent of the design unit (the actual: to change the design units should be agreed).2, steel replacement, should meet the minimum reinforcement ratio requirements and reinforcement structure (such as minimum steel reinforcement diameter, spacing, root number, anchorage length, etc.) provisions. The bar as possible with the original design of root number.3, crack resistance requirements of the components (such as crane beam, truss bottom chord, etc.) with smooth steel (not reinforced grade) instead of rebar.4, do not change the effective height of the component.
Q:How many grades of steel are round steel?
There are many kinds of steel. They can be divided into three categories: non alloy steel, low alloy steel and alloy steel by chemical composition. Ordinary steels are mostly unalloyed steels. Their quality is divided according to the impurities in the steel, namely ordinary quality carbon steel, high quality carbon steel and special quality carbon steel three kinds. Not by category.
Q:What is the difference between a circle and round steel continuous casting
Round steel drawn from a continuous casting is called a round billet; the rolled round steel is called a bar.
Q:Is the shear wall concealed column stirrup steel or round steel?
Now the shear walls, columns and stirrups are basically round steel bars, and their requirements are as follows: 6.5~12 mm in diameter steel bars, most of the reel into a disk; 12~40 mm in diameter, usually 6~12 meters long straight bar. I grade steel (Q235 steel) are rolling for smooth circular section, supply form of material, diameter of not more than 12mm, the length is 6m~12m.
Q:Are the bolts for the round bar or round steel?
The utility model relates to a pair of bolts which are used for drawing between the inner and the outer formwork of the wall when the beam and the column template are set. The bolt under concrete lateral pressure and other loads, ensure the spacing inside and outside the template can meet the design requirements, but also the template and its support structure fulcrum, so the impact on the overall arrangement of bolt, the template structure stiffness and strength greatly.
Q:Are more bars used in high-rise buildings?
The State advocates the use of new steel grades and designs responsive to national policies.Xingang are screw steel, screw thread steel with multiRound bars are often used in stirrups
Q:The difference between 304 stainless steel round bar and bright round bar
Stainless steel rounds are not required on the surface. They may come with black leather. They may be pickling surfaces or cold drawn or polished surfaces;Stainless steel bright round steel refers to polished surface or cold drawn surface round steel.304 is the brand, and the surface quality has nothing to do with.
Q:What's the difference between bearing steel and round steel?
Bearing steel refers to the steel used to make bearings. Round steel is generally referred to as round bar steel. One refers to the material, and the other refers to the profiles. Such as bearings, needle roller raw material is round steel, but also bearing steel.
Q:The diameter of 20 solid round steel bend into a circle, what machine bending?
Steel hoop benderConstruction: steel bending machine is suitable for bending stirrups, the bending angle can be adjusted arbitrarily, the structure is similar to the bending machine.Working principle: motor powered by a pair of wheels and two straight gear reducer, the eccentric disc rotates. The eccentric disc drives two connecting rods through an eccentric hinge, each connecting rod is hinged with a rack, so the rack moves reciprocally along the slideway. The rack also drives the gear to make the working disc reciprocate in a certain angle. The work disc has two axle holes, the central hole is inserted into the central shaft, and the other jack is arranged on the shaft. When the work disc is rotated, the central shaft and the forming shaft rotate together. The same principle of the steel bending machine can bend the steel bar into the required stirrups.
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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