C22 Carbon Steel Round Bars

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China main port
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Min Order Qty:
30 m.t.
Supply Capability:
10000 m.t./month

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Product Description:

C22 Carbon Steel Round Bars                             

Technical Paramenters 

Chemical Composition

Mechanical Properties (In Quenched & Tempered State)


0.37-0.44 %

Tensile strength(MPA) 



0.17-0.37 %

 Yield strength (MPA)



0.50-0.80 %

 Elongation (δ5/%)



0.80-1.10 %

 Reduction in Area (ψ/%)



≤0.30 %

 Impact  (J)



≤0.035 %

 Impact toughness value αkv (J/cm2)



≤0.035 %




≤0.030 %


1020 1045  4140 4130 4150 ASTM A36 A105 S20C S45c SCM440  

Available sizes

Round: Dia. 9.5300mm Square:8*8-160*160mm

Flat: Thickness 10120mm, width 305  2200mm

Size tolerance

Length tolerance:+100mm/-0mm




Hot rolled or cold drawn or  forged, turned or black surface, annealed or QT as customers request 


Statically and dynamically stressed components for vehicles, engines and machines. For parts of larger cross-sections, crankshafts, gears.


100% Ultrasonic according to the test standards:

SEP1921-84,GR.3 CLASS C/C 

Packing situation

In bundle or as customer required


 EAF+LF+VD ( necessary) +UT+ Peeled(optional)  +Turned (optional) + Heat Treatment (optional)

Delivery time

30days after the down payment

Payment term

T/T or L/C 

Products Show 


Product Overviews 

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





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)
Gear Steel20CrNiMoØ16-Ø600


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


 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 

 C22 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.



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?


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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- Self introduction

- Required specifications

- Inquire about price/MOQ

Q:Excuse me, the difference between round steel, screw steel, steel, plate material, steel wire, hope professional answer?
Disk and rebar with rib, have all the same, basically can not see, rebar size is more than Phi 9, a lot of hardness than wire reinforced strong general, so the steel strip is usually linear, bluntly, steel disc is not up, disc. The size can be intercepted, so can be screwed up disc.
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:Difference between round bar and other steel bars
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: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:What is round steel?
Round steel is a solid strip of steel whose cross section is round. Its specifications are expressed as millimeters in diameter. For example, "50" means a round steel with a diameter of 50 millimetersRound bar is divided into three kinds of hot rolling, forging and cold drawing. The specification of hot rolled round bar is 5.5-250 millimeters. Among them, 5.5-25 rounds of small round bars are mostly supplied by straight strips. They are commonly used as reinforcing bars, bolts and various mechanical parts;
Q:What kind of steel is used for anchor bolt material? What's the quality of anchor bolt material?
The general anchor bolt is made of Q235 steel, which is round. Rebar (Q345) strength, do nut thread no light round easily.
Q:What is the mechanical properties of No. 40 round bar?
There are 20 kinds of steel classification: carbon steel, alloy steel, carbon structural steel, special purpose and so on. Look at the questions this afternoon and find out about the books. Which type of steel do you ask? This is not clear, I gave up the answer, and then I see your this question.
Q:How can stainless steel rounds occur? Is it a quality problem?
By the skin bubbles, surface cracks and so on. Crack and steel surface vertical, about 0.8 ~ 1.5mm, no decarburization on both sides, this is caused by the bubble caused by the subcutaneous bubble. The molten steel contains a large amount of gas. When the liquid steel is solidified, the gas is discharged to form bubbles. The outer layer of the slab near the bubble called the subcutaneous bubbles, honeycomb shaped perpendicular to the surface of the billet, billet after rolling, the bubbles inside most welding. But if the subcutaneous bubbles near the slab surface is too close, while heating because of billet surface oxidation or burning of the bubble exposed, the bubble surface is oxidized, thus it is not possible to make the steel welding, surface cracks.
Q:Do you need paint for roof lightning proof steel bars?
The roof lightning protection round steel is the use of metal electrical conductivity and the principle of point discharge, the accumulation of the earth's electricity more rapidly spread to the air, play a role in lightning.
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. It can be divided into light and black. The so-called light circle, refers to the smooth surface after processing and quasi rolling; and the so-called, refers to the surface of the black, coarse, and direct rolling.

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