AISI 4340 Forged 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:

AISI 4340 Forged Steel Round Bars              

Technical Paramenters 

Chemical Composition

Mechanical Properties (In Quenched & Tempered State)

C

0.38-0.43 %

Tensile strength(MPA) 

≥980(100)

Si

0.15-0.35 %

 Yield strength (MPA)

≥835(85)

Mn

0.60-0.80 %

 Elongation (δ5/%)

≥12

Cr

0.70-0.90 %

 Reduction in Area (ψ/%)

≥55

Ni

1.65-2.00 %

 Impact  (J)

 78

P

≤0.035 %

 Impact toughness value αkv (J/cm2)

≥98(10)

S

≤0.040 %

 Hardness 

≤269HB

Mo

0.20-0.30 %



Standard

ASTM A29/A 29M-05 

Grade

4340

MOQ

1 Metric Ton

Diameter

8mm~1500mm

Length

6m,12m or as required.

Diameter Tolerance

As required

Condition of delivery

Hot rolled,Cold Rolled or as required.


Products Show 

 


Product Overviews 

Steel wire, Steel Round bar

Diameter: 0.14mm-2000mm

Steel Square bar
Size 50mm * 50mm-600mm *600mm

Steel Plate(sheet), flat steel bar
Thickness: 0.1mm-800mm  Width10mm to 1900mm

Cold-rolled Plate(sheet)

Thickness: 0.1-8mm   Width1000mm

Hot-rolled Plate(sheet)

Thickness6-200mm  Width 210-1900mm

Surface: 2B, BA, 6K, 8K, 12K, etc.

Welded/seamless Steel Pipe(tube) 
outer diameter: 6-219mm  wall thickness: 1-35 mm.

Length:according to the customer's requirements.

Condition of delivery

Hot-rolling+annealing,normalizing+tempering,quenching+tempering,cold-drawn or according to the customer's requirements.

Surface:rough machining,fine machining,polishing,bright,pickling,black or according to the customers’ requirements.

Furnaces for metallurgical processing  electrode arc + LF,VD,VOD,ESR,Vacuum consumable electrode.

Ultrasonic inspection  100% ultrasonic inspection for any in perfections or according to the customers’ requirements.

All of our steels can be customized(standard GB, ASTM, JIS, DIN, etc.)


Work Shop 

 AISI 4340 Forged 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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