4130 4140 4150 20MnCr5 42CrMo4 8620 4340 Alloy Round Steel Bar

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

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Product Description:

4130 4140 4150 20MnCr5 42CrMo4 8620 4340 Alloy Round Steel Bar                 

                       

Products Details 

4130 4140 4150 20MnCr5 42CrMo4 8620 4340 alloy steel round bar 
1.  Grade: AISI 1045, SCM440, 42CrMo, 40Cr. 
2.  Size: 25-450m


4130 4140 4150 20MnCr5 42CrMo4 8620 4340 alloy steel round bar

Grade:

S45CB, 40Cr, SCM440, SCM420, 42CrMo, AISI4140,  customized is available.
Size:25-450mm
Length:5.8m/6m fixed length, or as customized.
MOQ:20MT
Remark:chamfering and straightness
Packing:arround 3MT per bundle

 

Chemical Composition (%)

Grade

C

Si

Mn

P

S

Cr

Mo

42CrMo4

0.38-0.45

0.17-0.37

0.40-0.70

≤0.035

≤0.035

0.90-1.20

0.15-0.25

1.7225

0.38-0.45

≤0.40

0.60-0.90

≤0.025

≤0.035

0.90-1.20

0.15-0.30

4140

0.38-0.43

0.15-0.35

0.75-1.00

≤0.035

≤0.040

0.80-1.10

0.15-0.25


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 

 4130 4140 4150 20MnCr5 42CrMo4 8620 4340 Alloy Round Steel Bar


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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- Inquire about price/MOQ

Q:Why is a steel rope made of many wires rather than a round bar of steel?
The multi ply, in order to increase the cross-sectional area increases the tension will not suddenly broken, fine wire bend more easily, so the bending of wick core can be better, with better lubrication of steel wire rope. If it is a steel bar, it is not easy to bend, it is easy to break suddenly, and the practicability is poor.
Q:How many tons of pressure can the round steel of 70 inches bear?
This simply refers to the vertical compression. The problem of the bracket is whether the round steel is vertically compressed, whether the stiffness of the structure can be safely supported, whether the supporting foundation can withstand the pressure or not, that is a must be taken into consideration.
Q:What's the difference between Q345 round steel and No. 45 round steel material?
Q345: it is a kind of manganese steel (16Mn), yielding strength of 345, good welding performance, commonly used in structural parts welding, low carbon steel, can not be used for quenching or quenching and tempering.No. 45 Steel: high quality carbon structural steel, medium carbon steel. Can be used for quenching or tempering.
Q:Is there a standard for the grounding of pumping units and the length of the length of the angle steel or round steel?
Yes, the length of the grounding body must not be less than 2.5 meters.
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:Excuse me and steel disc round what is the difference?
Main application: Pu wire is mainly used for building reinforced concrete structure for reinforcing bars, and it can also be made of cold drawn steel wire for strapping and so on.
Q:What kind of material is the first round steel?
[round bar] refers to the cross section of round solid steel. Round bar is divided into three parts: hot rolling, forging and cold drawing.
Q:What's the difference between bearing steel and round steel?
Steel: steel widely used, a wide range of products, according to the shape of the cross section, the steel is generally divided into profiles, plates, pipes and metal products in four categories. Steel is a material of shape, size, and performance made by pressure processing of ingots, billets, or steel. Most steel processing is through the pressure processing, so that the processed steel (billets, ingots, etc.) plastic deformation. According to the steel processing temperature, can be divided into cold processing and hot processing two.
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:20# difference between round bar and A3 round bar, can they be used separately?
The former belongs to low carbon steel, and the latter belongs to iron.The mechanical properties of the two are completely different, and they can not be interchanged if they are technically required

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