1.2311 Steel Round Bar

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

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Item specifice:

Standard: AISI,JIS,GB,BS,DIN,API,EN,ASTM Technique: Hot Rolled,Cold Rolled,Cold Drawn,ERW,Forged,Saw,Extruded,EFW,Spring Shape: U Channel,Square,C Channel,Hexagonal,Round,Rectangular,Oval,LTZ
Surface Treatment: Galvanized,Coated,Copper Coated,Color Coated,Oiled,Dry,Chromed Passivation,Polished,Bright,Black,PVDF 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:

1.2311 Steel Round Bar

 

Grade: 3Cr2Mo/P20/1.2311/Bp20
 

Characteristic

1, Good hardenability.

2, Polished good performance

3, Good mechanical properties.

4, Section's hardness is uniform.

 

Chemical composition of 3Cr2Mo

CSiMnCrMoPS
0.28~0.400.20~0.800.60~1.001.40~2.000.30~0.55≤0.030≤0.030


Specification

   Round bar 

  Diameter (mm)

   Length (mm)


     50~500

   2000~5800


   plate/sheet    

  Thickness (mm)   

    Width (mm)       

  Length (mm)    

     20~400

     80~1000

   2000~5800


Steel Surface 

   Steel Sharp

  Surface treatment

   Round bar 

  Black /Grinding / Polished / Peeled / Turned    

   steel plate

   Black / Milling / Machined

 

Application

1. 3Cr2Mo is suitable for making medium and large,sophishticated long-life plastic mold steel.

2. 3Cr2Mo is suitable for manufacturing low melting point alloy die casting and heavy mold main components.

 

Physical properties

Thermal conductivity

Temperature/°c 20100 200 300 400 
Thermal conductivityλ/W•(m•K)¯¹36.0 33.4 31.4 30.1 29.3 

Coefficient of expansion

Temperature/°C18~10018~20018~30018~40018~50018~60018~700
Coefficient of expansion/°C-111.9*10-612.20*10-612.5*10-612.81*10-613.11*10-613.41*10-613.71*10-6

 

Company equipment

smelting equipment :   3 and 4 tons induction furnaces;electric slag furnaces of 0.5t,1t,3t,5t,especially 3 and 5 tons electric slag

 furnaces which feature both unipolar and bipolarity series functions.etc.

Processing equipments :   electric hydraulic hammer; supporting equipments, gas producer, reheating furnace, gas annealing 

furnace, electric annealing saw, etc.

Detective equipments :   functions of chemical annalysis, physics property and mechnical property, etc.

 

1.2311 Steel Round Bar1.2311 Steel Round Bar

1.2311 Steel Round Bar1.2311 Steel Round Bar



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Q:What is the difference between 40Cr round steel and 40Cr steel forgings?
The casting process constructed a fine grain structure and improved the physical properties of the metal. The utility model has the advantages of high strength and good plasticity, and is suitable for making important parts with large force and high requirement.The properties of forgings are superior to those of ordinary ones.
Q:How to distinguish a round bar from forging? Cold drawing? Hot rolling?
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. 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:12 of the diameter of the round steel can be M12 out of the thread is not
No problem。 M12 coarse thread of the pitch is 1.75, the outer circle to be processed to 11.8mm, the thread of the most beautiful shape. If the outer circle is too large, the tip of the tooth is too small and very easy to deform.
Q:Which is hard, round steel or screw steel?
If the diameter is the same, of course, the rebar is of great hardness.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.
Q:Will the theoretical weight of thread steel and round steel be the same?
The difference between such rebar and round bars with longitudinal ribs and transverse rib surface, usually with two longitudinal ribs and transverse ribs along the length direction of the uniform distribution.
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: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: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:Why do I use the M25 round bar for the embedded bolt M24?
Because there is no 24 of the bar specifications, only 25
Q:The 8 thread can replace the beam stirrups by steel
First class steel is HPB235, that is, yield strength is 235mpa, elongation of grade steel is much larger than grade two steel, and the scientific name of grade two steel is HRB335, that is, yield strength is 335mpa, and grade two steel is higher than first grade steel. But also a high level of brittle than steel, as in seismic zone two structure beam is not replaced.

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