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:How can a round steel weld on a flat steel plate be 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: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:On the market, 8mm Round Bar is not 9 meters a root? How much does it weigh about 300 meters? How much does it cost?
Method of calculating reinforcement weight, unit length, weightD*d*0.00617= (6 in 7)For example, 8mm steel 8*8*0.00617=0.39488 take 0.395Round steel and rib are calculated the same wayRound bar 8 is rolled up, usually between 2~4 tonsYou'll have to straighten it up, straighten it up, and straighten it up
Q:How to determine the welding seam height of steel plate and steel bar?
If the arc surface in the length direction of the steel bar is lapped welded with the steel plate surface, the gap between the steel plate and the round bar is welded by the 2 side welding angle, so that the welded meat is equal to the largest diameter of the round steel arc surface.
Q:What's the difference between a round tube and a round tube?
Round steel is generally refers to steel, the surface is not threaded, different from round steel pipe, round tube is round tube.
Q:What's the difference between bar and round bar?
Quenching is a heat treatment behavior, as raw material will not be quenched, and generally should be normalized or annealed by reasonRound steel can also be used for seamless steel tube perforation, bar material can not be
Q:Weight algorithm of round steel
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. Where: 5.5-25 mm small round steel mostly straight bundles of supply, used for steel, bolts and various mechanical parts; greater than 25 mm round steel, seamless steel pipe is mainly used for the manufacture of mechanical parts of the tube, etc..
Q:Is round steel bar round steel?
Yes.From the shape of points for the light round steel, crescent steel, rebar.From the strength of reinforcement is divided into one level (235), two (335), three (435), four (435)Cold drawn from the production process (first tensioning and long pull method), cold and so on
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:What is the difference between gcr12 round bar and Cr12 round bar? Can it be used in general?
The chromium content of the two is very different, and the range of application is different.

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