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:What kind of material is the first round steel?
Standard Specification for hot rolled round steel is 5.5-250 mm. Where: 5.5-25 mm small round steel mostly straight bundles of supply, used for steel, bolts and various mechanical parts; greater than 25 mm round steel, seamless steel pipe is mainly used for the manufacture of mechanical parts of the tube, etc..
Q:Use of stainless steel round bar?
Stainless steel round bar has a broad application prospect, and is widely used in hardware, kitchenware, shipbuilding, petrochemical, machinery, medicine, food, electricity, energy, aerospace and other architectural decoration. Equipment, chemicals, dyes, paper making, oxalic acid, fertilizer, etc.; equipment for photography, food industry, coastal areas, ropes, CD poles, bolts, nuts, etc..
Q:What kind of nuts do you need for round 20 rounds?
Common materials for 301, 304, 303, 316, 316L, 304L, 321, 2520, 201, 202 and so on. Specifications are expressed in 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.Stainless steel round bar has a broad application prospect, and is widely used in hardware, kitchenware, shipbuilding, petrochemical, machinery, medicine, food, electricity, energy, aerospace and other architectural decoration. Equipment, chemicals, dyes, paper making, oxalic acid, fertilizer, etc.; equipment for photography, food industry, coastal areas, ropes, CD poles, bolts, nuts, etc..
Q:What's the difference between round steel and carbon bound steel?
The strength of different steel strength low carbon steel, 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 and deformation in the break before, pulled off in carbon the steel is much smaller.
Q:What is the difference between common wire and high-speed wire?
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 small round bars are mostly supplied by straight strips. They are used as reinforcing bars, bolts and various mechanical parts. Round bars larger than 25 millimeters are used mainly for making mechanical parts or for seamless steel tubes.
Q:What are the scientific names of round bar and screw steel?
Round steel and thread steel are just popular terms for steel reinforcement in construction. In the construction, steel by HPB235, belonging to the carbon steel, steel is Q235; steel by HRBxxx, the steel is the most commonly used HRB335 and HRB400, they are called hot rolled alloy steel, cold steel lines, is heat treated in a bar.
Q:Q235 and mechanical properties of hot rolled steel cold drawn steel have what difference, Q235 hot rolled steel with 12 combined shearing machine has a number of very hard, the damage of the blades, why
Secondly, have a great relationship with the mechanical properties of heat treatment of steel, quenching hardness increased, annealing hardness decreases, the same kind of material of steel under different heat treatment, the hardness difference is very big, you said the hot bar is excellent, there may have been a quenching in the production process
Q:Difference between round bar and other steel bars
It is divided into three kinds: hot rolling, forging and cold drawing. Round steel (grade 1 steel) belongs to ordinary low carbon steel, and most other steel bars are alloy steel. Round steel is of low strength and high strength of other steel.
Q:Difference between cold drawn round steel and round steel
Cold formed steel allows partial buckling of the cross section, thus taking full advantage of the post buckling capacity of the member, while the hot-rolled section does not allow partial buckling of the cross section.
Q:Can the same grade steel instead of round bar be ok?
Tolerable。1. grades of steel are different (chemical composition is different). Round steel (HPB235) is carbon steel, steel is Q235; thread steel is low alloy steel; HRB335 grade steel is 20MnSi (20 manganese silicon); HRB400 grade steel bars are 20MnSiV or 20MnSiNb or 20MnTi etc.;

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