Q345B st52-3 Cr50 S355JR Steel Round Bar

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China main port
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TT OR LC
Min Order Qty:
5 m.t.
Supply Capability:
100000 m.t./month

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Item specifice:

Standard: EN,DIN,BS,GB,JIS,ASTM,AISI,API Technique: Hot Rolled,EFW,Extruded,Saw,Forged,ERW,Cold Drawn,Cold Rolled,Spring Shape: LTZ,Oval,Rectangular,Round,Hexagonal,C Channel,Square,U Channel
Surface Treatment: Polished,Bright,Black,PVDF Coated,Chromed Passivation,Dry,Oiled,Copper Coated,Coated,Galvanized,Color Coated Steel Grade: Q195,Q215,Q235,Q215B,Q235B,RHB335,HRB400,200 Series,300 Series,400 Series,600 Series,SS400-SS490,10#,20#,A53(A,B) Certification: ISO,SGS,CE
Thickness: as required Length: as required Net Weight: as required

Product Description:

 Q345B st52-3 Cr50 S355JR Steel Round Bar


1. Grade:Q345B, Q235B, SS400, HRB335, ST52-3

2. Hot-rolling
3. DIa:10-300mm
4. MOQ:20tons

5. Chemical and physical properties

 

Grade

C

Mn

Si

P

S

Yield

Point(Mpa)

Tensile

Stregth(Mpa)

Elongation

(%)

ST52-3

≤0.22

≤1.60

≤0.60

≤0.040

≤0.040

≥325

490

630

≥18

HRB335  

≤0.25

≤1.60

≤0.80

≤0.045

≤0.045

≥335

≥490

≥16

 

6.Size Tolerance

 

Length tolerance: +100mm/-0mm

 

Side length tolerance: +/-2mm

 

Straightness: max 6mm/m

 

The mill test certificate shall show the chemical composition, and it is guaranteed that the chemical composition shall be within the limit stipulated in the contract.

 

We are engaged to offer wide range of steel products: steel round bar, square steel, such 

as SS400B, S20C, S45C, Ck45, SAE1020B, SAE1045B, SAE4140, SAE4150, SAE4340, 

SAE8620, 42CrMo4, 15B36Cr, S50C, S65C. 20Cr,40Cr.The diameter ranging from 20mm 

to 300mm. Hot-rolled/forged/cold drawn.

Q345B st52-3 Cr50 S355JR Steel Round BarQ345B st52-3 Cr50 S355JR Steel Round Bar

Q345B st52-3 Cr50 S355JR Steel Round BarQ345B st52-3 Cr50 S355JR Steel Round Bar



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Q:On the market, 8mm Round Bar is not 9 meters a root? How much does it weigh about 300 meters? How much does it cost?
8 there is no regular reinforced steel bars are straight, round, there is straight, as you said 9 M 1, but that's rolling, if their home, can also, engineering is prohibited
Q:12mm Round steel, the material is Q235, the maximum weight can bear?
The cross sectional area of 12mm steel is 3.14*36=113.04 mm, the maximum can bear much weight: 113.04*235=26564.40 cattle, is about 26.56440 kn.
Q:Cold drawn steel wire is a round bar or thread steel in Construction Engineering?
Of course it belongs to round bar. Thread steel can not be obtained by cold drawing. Besides, the outer diameter of the cold drawn steel wire is smaller, the surface is smoother and the hardness is slightly higher.
Q:How many positive and negative tolerances are allowed for round steel GB?
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. 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. Among 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:Are the bolts for the round bar or round steel?
If in some large-scale concrete component under the condition of some units to prevent run mode is used, the bar, the bar is the best quality, and the tensile strength is great, because the price advantage is not, it is generally not recommended to use the bar as a pull screw.
Q:What's the difference between round steel and other steel bars?
Strength is not the same. The low strength steel, and other steel with high strength, the diameter of the same size as compared with other steel, round steel can bear the pulling force than other reinforced small, but the plastic steel reinforced bar is stronger than the other, there is a large deformation in the break before, while the other bars in tensile deformation is the former is much smaller.
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:Is round steel bar round steel?
NoRound steel bars refer to hot rolled round steel bars for reinforced concrete. Round bars include high-quality carbon structural steel, round steel, ordinary carbon structural steel round bars, steel bars for prestressed concrete, etc.. Although the shape is round, but the material is different, so steel and round bar is two yards.
Q:What kind of material is the first round steel?
[a round bar] is a smooth steel bar. The title of the old bar code, usually called HPB300, is a grade bar, H (Hot-rolled) means hot rolled, P (Plain) is smooth, B (Bar) is strip, where steel is used, and 300 represents yield strength of 300 MPa
Q:How many grades of steel are round steel?
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. It is divided into three kinds: hot rolling, forging and cold drawing. There is no classification of steel. However, high quality finished steel must be in the form of round steel, otherwise it is called ingot or billet and section steel.

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