Alloy Steel AISI 4340 Materials 1.6582

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50 m.t.
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10000 m.t./month

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Product Description:

Alloy Steel AISI 4340 Materials 1.6582                              


Products Details 

Similar or Equivalent Grades 

GB

ASTM

JIS

ISO

40CrNiMoA

4340

SNCM439

36CrNiMo4

Chemical composition

 

Standard

 

 

Grade

 

 

C

 

 

Cr

 

 

Ni

 

 

Mo

 

 

Si

 

 

Mn

 

P

S

Cu

GB

5CrNiMo

0.37-0.44

0.60-0.90

1.25-1.35

0.15-0.25

0.17-0.37

0.50-0.80

0.025

0.025

0.30

JIS

SNCM439

0.36-0.43

0.60-1.00

1.60-2.00

0.15-0.30

0.15-0.35

0.60-0.90

0.030

0.020

0.30

ASTM

4340

0.38-0.43

0.70-0.90

1.65-2.00

0.20-0.30

0.15-0.35

0.65-0.85

0.025

0.025

ISO

38CrNiMo4

0.32-0.40

0.90-1.20

0.90-1.20

0.15-0.30

0.10-0.40

0.50-0.80

0.035

0.035

 Mechanical Property

Tensile strength

Yield strength

Elongation rate

Contractibility rate

Impact Energy

Hardness(HBS100/3000)

≥980MPa

≥835MPa

≥12%

≥55%

≥78J

≤269

Characteristics

1) High hardability.

2) High strength and toughness.

3) Poor cold deformation plasticity and weldability. 

4) Poor corrosion resistance.

Application

Bent axle of engine, cross beam, undercarriage, pressure vessel, torsion shaft,  transmission shaft, frictionclutch shaft, etc.


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 

 Alloy Steel AISI 4340 Materials 1.6582


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:What are square steel, rectangular tube, angle steel or light steel?
Section steel is a kind of strip steel with definite section shape and size.In accordance with the different smelting quality of steel, steel is divided into ordinary steel and high quality steel. According to the current catalogue of metal products, ordinary steel can be divided into large section steel, medium section steel and small section steel. The section steel can be divided into I-beam, channel steel, angle steel, round steel and so on according to its sectional shape.
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:How to make the round welds on flat steel flat and qualified?
It is required that the current is suitable and the bar is stable. If required, the groove can be turned on the round steel to ensure that the welding is beautiful and qualified
Q:The two project is to use rebar or rebar?
Of course, depends on what steel is used for components, such as the two structure of the structure column, and other minor parts, it does not matter. Suggest a slightly larger span of the floor, do not use round steel bar, or the use of thread steel bar, and then with anti crack steel.
Q:What are the differences between the products made of wrought round steel and hot rolled round steel and tested by mechanical testing after heat treatment?
In comparison, the general longitudinal performance of hot rolled round bar is better than that of transverse or tangential direction, and the difference between the two values is obvious. The banded structure is more obvious in the longitudinal microstructure, and the deformation of non-metallic plastic inclusions is more obvious
Q:The diameter of 20 solid round steel bend into a circle, what machine bending?
Steel hoop benderConstruction: steel bending machine is suitable for bending stirrups, the bending angle can be adjusted arbitrarily, the structure is similar to the bending machine.Working principle: motor powered by a pair of wheels and two straight gear reducer, the eccentric disc rotates. The eccentric disc drives two connecting rods through an eccentric hinge, each connecting rod is hinged with a rack, so the rack moves reciprocally along the slideway. The rack also drives the gear to make the working disc reciprocate in a certain angle. The work disc has two axle holes, the central hole is inserted into the central shaft, and the other jack is arranged on the shaft. When the work disc is rotated, the central shaft and the forming shaft rotate together. The same principle of the steel bending machine can bend the steel bar into the required stirrups.
Q:The 8 thread can replace the beam stirrups by steel
That's fine, but it's not necessary. It's more expensive. Of course, there's no substitute for steel bars on the site.
Q:Can steel bars be replaced by large screws in the concrete floor?
In theory, how big a round steel will have to replace the large thread steel, and if it is cast, then still better to use thread steel, screw steel tensile resistance than round steel by strong
Q:What kind of steel pipe is round steel?
First of all, this is the two concept, round steel solid, hollow steel pipe; secondly, the round bar is divided into hot rolling, forging and cold drawn three. Generally seamless steel pipe can be divided into hot rolling (extrusion), cold rolling (pull), heat expansion of the basic types of steel pipe. Hope to be of help to you
Q:Specifications of the same kind of galvanized round bar more expensive than round steel?
The general market price than ordinary steel galvanized steel bar of your 2000-3000 dollars per ton, according to your purchase requirements, price range of relatively large fluctuations, such as whether to open a formal invoice, transport distance, purchase quantity, relationship with your level of economic development, the developed area of fierce market competition, the price is relatively low. The prices and prices of large factories and small factories are not the same. The prices of big factories are generally high, and the prices of small factories are low.

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