Carbon Structural Steel Square Bars SS400CR

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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 SS400CR

 

Product Specification

1, p ≤0.050%; S ≤0.050%; Cr ≥0.30%

2, Strength of Extension σb ≥400 Mpa

    Yield Strength  σs ≥245(25) Mpa

 

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 do not require high performance.

  4, SS400CR with grade C or D can be used as steel with special use.

 

Product Main Points

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

2, Surface Treatment: black, bright, polished, galvanized

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

  

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Carbon Structural Steel Square Bars SS400CR

 

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Carbon Structural Steel Square Bars SS400CR

 

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Carbon Structural Steel Square Bars SS400CR

Carbon Structural Steel Square Bars SS400CR

 

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Q:Why is the round bar bent?
Round steel with hooks the aim is to increase the bond between concrete and prevent the component in the tension will be reinforced. Therefore, round bars should be 180 degrees of hook, should set up 90 degree hook ribbed bar.
Q:Why is it better to use round steel than flat steel in lightning protection?
Of course, the contact area of flat steel and soil are large, relatively scattered large flow area, the construction is more convenient, in terms of price, we are willing to use flat, as for the problem of anti-corrosion, anti-corrosion paint, zinc can be taken, you know, the thickness of galvanized steel pipe is generally not flat, so true to see the term for the use of galvanized flat steel is not bad.
Q:20 round bars are of several grades
At different levels of chemical composition, because of the reinforcing of different chemical composition of the steel, the mechanical indicator will be different. One, two, according to the social needs of Sansteel production power and the development of the material standard, the yield strength, ultimate strength, elongation, low temperature, and weldability are very different, different levels of steel position also have great cooperation. First grade steel yield strength 235MPa, ultimate strength 310MPa, grade two steel yield strength 335MPa, ultimate strength 510MPa, grade three steel yield strength 400MPa, ultimate strength 600MPa.
Q:Is the shear wall concealed column stirrup steel or round steel?
Round bar is the finished steel hot rolling and cooling, by ordinary low carbon steel and alloy steel under the condition of high temperature pressing, mainly used for reinforcement of reinforced concrete and prestressed concrete structure, is one of the varieties of steel used in civil engineering in the largest amount.
Q:How many meters is the minimum loading surface of galvanized steel wire for grounding grid?
Refers to the galvanized flat steel width 12-300mm, thickness 4-60mm, cross section is rectangular and with pure edge of galvanized steel. Galvanized flat steel can be finished steel, also can be galvanized pipe blank and galvanized belt. With high strength, light structure: strong grid welding structure, so that it has high load, light structure, easy lifting and other features, beautiful appearance, durable.Galvanized flat steel can be used to produce iron, tools and mechanical parts, and is used as frame structures and escalators for buildings.
Q:Round bars and ribbed stirrups are much better
The flexibility of hot rolled round steel bar is better than that of ribbed steel bar, and its fatigue stress amplitude is wide allowable. It is suitable for the components under dynamic load, as well as lifting rings, rings and lifting workpieces;
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:What's the difference between round steel and screw steel? Which is cheaper than steel on the market these days?
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 which: 5.5-25 mm of small round bars, commonly used as steel, bolts and various mechanical parts, larger than 25 millimeters of round steel, mainly for the manufacture of machinery parts. Round steel has many kinds of materials, such as: Q195, Q235, 10#, 20#, 35#, 45#, Q215, Q235, 304, 316, 20Cr, 40Cr, 20CrMo, 35CrMo, 20CrMnTi, 5CrMnMo, etc...
Q:How to determine the welding seam height of steel plate and steel bar?
If the arc surface in the length direction of the steel bar is lapped welded with the steel plate surface, the gap between the steel plate and the round bar is welded by the 2 side welding angle, so that the welded meat is equal to the largest diameter of the round steel arc surface.
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.

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