1.2311 Steel Round Bar

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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:1, three, two, steel, wire rod, round steel what is the difference?
Wire is a wire, usually refers to the use of "high speed non-twist wire rod rolling mill, ordinary common low carbon steel, hot-rolled wire torsion free cooling (ZBH4403-88) and the high quality carbon steel, hot-rolled wire rod without torsion cold control (ZBH44002-88).
Q:Can I use steel bar instead of steel bar?
But there is a difference between steel reinforcement ratio can good toughness steel reinforced high strength reinforced surface than the thread in the engineering application of the surface force can he assisted according to what you want instead of general effect is no problem except in mechanical parts to replace.
Q:Why is it better to use round steel than flat steel in lightning protection?
From the cross section, thermal stability as long as meet the discharge current can be, but from the lightning protection downlead selection, selection of round steel in order to prevent the tip discharge, so we generally do not choose flat edges as grounding, buried in the earth round and not flat how much difference, but in the case of the same section
Q:Lightning protection earthing zinc plating flat iron and round steel welding method, need to flat iron wrapped in round steel outside welding?
Don't need, but the welding seam area not less than round or flat between the relatively small cross section, the weld to coated with anticorrosive paint. Generally speaking, the grounding part does not use steel, galvanized L type flat iron good effect (copper strip and galvanized L type flat iron is not much, just life is long, but the cost is much higher), round only used as grid wiring.
Q:Is there a standard for the grounding of pumping units and the length of the length of the angle steel or round steel?
What to play a few piles, with triangle connection, these seem to have some places have standards, but a place, a kind of, in general, general one is: ground wire pile to hit the moist soil layer, ensure the grounding reliable
Q:Why can't the grounding device be replaced by steel bar instead of round steel?
When using the steel structure as the ground, and hidden in concrete ground, in addition to the local connection is not what you said most of the other for round steel, screw steel, is the existence of these 1 steel, is more curved surfaces, easy to discharge. 2, the thread steel belongs to high carbon steel, conductivity is inferior to round steel." The problem? Then the building, simply all alone round or flat! Don't get it, do more beneficial and carp, social progress! Therefore, it is a mistake to use the steel bar instead of round steel to join the bar
Q:Requirements for groove welding of grade 22mm round steel and manual arc welding
If not on the lathe, in the groove on the round bar with gouging or cutting gun, docking form X type double sided bilateral docking, blunt edge 2mm root gap 2mm welding, welding side sincere one or two seam, flip the workpiece on the other side of a full weld groove, flip weld residual,
Q:The difference between galvanized round bar and galvanized flat steel?
Galvanized round steel refers to the cross section of round solid steel. The specifications are expressed in millimeters of diameter, such as 50, which means a round bar of 50 millimeters in diameter. Round steel is not the same as other steel bars. Round steel is round in shape and has no ribs and no ribs, which makes the bonding strength between round bar and concrete very small.
Q:Is steel bar round wire? What's the difference? What are the main applications of wire rod?
The difference between steel and other steel: 1 is not the same, round shape light garden, no pattern without ribs, other steel surface appearance is engraved or ribbed. Bond thus causing steel and concrete, and the bond strength of steel and concrete. The other 2 ingredients are not the same, (a steel bar) belongs to the ordinary low carbon steel, alloy steel reinforced many other. 3 strength is not the same. The low strength steel and other steel with high strength, i.e., 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, larger the deformation in the break before, while the other bars in the break before the deformation is much smaller.
Q:What kind of steel bars are used in general civil buildings?
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.

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