C40 Carbon Steel Round Bars

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Loading Port:
China main port
Payment Terms:
TT OR LC
Min Order Qty:
30 m.t.
Supply Capability:
10000 m.t./month

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Product Description:

C40 Carbon Steel Round Bars                

Product Details 

1. Steel manufacturing process: EAF+LF+(VD)+CCM+Hot rolled+(cold drawn)/(forged) 


2.Ultrasonic test standard: SPE1921-GR3, CLASS C/C


3.Chemical composition

C

 Si

 Mn

 S max

 P max

 B

 0.37-0.44

 0.17-0.37

 0.35-0.90

 0.035

 0.035

 0.0008-0.003


4.Machanical composition

Yield strength(MPa)

Tensile strength(MPa)

Elongation(%)

Reduction of area(%)

AKV(J)

Hardness(HB)

335

570

219

45

47

217


5.Sizes detailes

Sizes detalisdiameter10-310mm
Sizes detalislength3-12m(canbe customerized)
Sizes tolerancelength +/-100mm(max)
Sizes tolerancediameter+/-2mm(max)
Sizes toleranceStraightness3mm/m(max)


Products Show 

 


Product Overviews 

Product NameTypical GradesDiameter(mm)Standard adopted
Carbon Steel20 (1020/S20C/C22)Ø16-Ø300

 

 

GB/SAE/JIS/DIN

 

40 (1040/S40C/C40)
45 (1045/S45C/C45)
Bearing SteelGCr9 (51100/SUJ1)Ø12-Ø250
GCr15 (52100/SUJ2/100Gr6)
GCr9SiMn (A485-Gr.1/SUJ3)

 

Cr-Mo Steel

20Cr (5120/SCr420H/20Cr4)Ø12-Ø250
40Cr (5140/SCr440/41Cr4)
42CrMo(4140/SCM440/42CrMo4)
Gear Steel20CrNiMoØ16-Ø600
20CrMn(5115/SMnC420/20MnCr5)
20CrNiMo(8620/SNCM220/20CrMiMo2)

Application 

Carbon Steel

 Mold bottom,   Plastic mold,   Construction machinery parts

 Automobile parts,   Security grills,   Screens,  Construction

 Bearing Steel  Aerospace,   Navigation,   Nuclear energy,   Chemical industry

 Electronic information,   Petrochemical,   Instrument and meter

 Transportation 

 Cr-Mo Steel  Mechanism & Fasteners gear,    Stressed components for vehicles 

 Engines and machines,    Parts of larger cross-section

 

Gear Steel

All kinds of gears,   Statically and dynamically stressed component for vehicles

Engines and machine,   Larger cross-section parts,   Crankshafts 


Work Shop 

 C40 Carbon Steel Round Bars


Company Information 

CNBM International Corporation is the most important trading platform of CNBM group.

Whith its advantages, CNBM International are mainly concentrate on Cement, Glass, Iron and Steel, Ceramics industries and devotes herself for supplying high qulity series of refractories as well as technical consultancies and logistics solutions.

 


FAQ

1, Your advantages?

     professional products inquiry, products knowledge train (for agents), smooth goods delivery, excellent customer solution proposale

2, Test & Certificate?

      SGS test is available, customer inspection before shipping is welcome, third party inspection is no problem

3,  Factory or Trading Company?

      CNBM is a trading company but we have so many protocol factories and CNBM works as a trading department of these factories. Also CNBM is the holding company of many factories.

4, Payment Terms?

    30% TT as deposit and 70% before delivery.

    Irrevocable L/C at sight.

5, Trading Terms?

    EXW, FOB, CIF, FFR, CNF

6, After-sale Service?

     CNBM provides the services and support you need for every step of our cooperation. We're the business partner you can trust.

     For any problem, please kindly contact us at any your convenient time.

We'll reply you in our first priority within 24 hours.


Packaging & Delivery

1, Packaging: seaworthy package or as required 

2, Delivery: 35-45 days or based on quantity


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Q:Could you tell me what is the difference between steel pipe and round steel?
Widely used in the manufacture of structural and mechanical parts, such as oil drilling pipe, automobile transmission shaft, bicycle frame and steel scaffolding used in construction. Making ring parts with steel tubes can improve data application rate, simplify manufacturing process, save data and work hours, such as rolling bearings, rings, Jack sleeves, etc., and have been widely used in steel pipe manufacture.
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:What is the difference between 40Cr round steel and 40Cr steel forgings?
But 40Cr forgings are objects that are subjected to pressure by plastic deformation to shape a desired shape or suitable compressive force. (usually done by using hammers or pressure).
Q:What is the difference between cast iron and round steel?
Is also called round billet cast iron or iron by calcination with heavy machinery forging into steel (called the moral is toughened and hardened into steel or steel), the main component of alloy is composed of iron, carbon and silicon steel just according to the different areas in the use of alloy in carbon and silicon content in different precipitation in steel forging process of carbon and silicon was decreased to different areas of demand.
Q:Grade 1 steel is round steel, grade two steel is ribbed thread steel. Are the weight of the two units the same?
Grade two steel is ribbed steel, but the average diameter is calculated. The chemical composition of grade steel and grade two steel is different, but the density of them is the same. Therefore, the unit weight of grade 1 steel and grade two steel is the same.
Q:What's the difference between a round tube and a round tube?
Round steel is a medium solid steel, of course the tube is hollow
Q:What kind of steel is used for anchor bolt material? What's the quality of anchor bolt material?
The anchor bolt can be divided into fixed anchor bolt, movable anchor bolt, expansion anchor, anchor bolt and bond anchor bolt. According to the different shapes, they are divided into: L type embedded bolt, 9 type embedded bolt, U type embedded bolt, welding pre embedded bolt, bottom plate embedded bolt
Q:What is hot rolling? What is called forging?
Forging is a method of processing wool embryos by plastic deformation. They are also classified as cold forging and hot forging
Q:What are the differences between hot rolled stainless steel rounds and cold drawn round ones?
Hot rolled round steel, used in construction and general hardware parts processing is very common. Cold drawn round steel (do not know is not cold dial round bar). But I understand by the cold dial round bar Also mainly used in hardware parts processing and production. Such as hinge shaft core or other surface and diameter requirements of production and processing occasions.
Q:Use of stainless steel round bar?
Stainless steel round bar is a kind of long material, and it is also a kind of bar. The so-called stainless steel round bar refers to the cross section is even round long material, generally about four meters long.

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