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1.6511 / SAE4340 Hot Rolled Alloy Steel Annealed Heat Treatment In Mechanical

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1.6511 / SAE4340 Hot Rolled Alloy Steel Annealed Heat Treatment In Mechanical

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Large Image :  1.6511 / SAE4340 Hot Rolled Alloy Steel Annealed Heat Treatment In Mechanical

Product Details:
Place of Origin: China
Brand Name: CF Steel
Certification: ISO / Mill Certificate
Model Number: 1.6511 / SAE4340 / SNCM439
Payment & Shipping Terms:
Minimum Order Quantity: Negotiable
Price: Negotiable
Packaging Details: Export Standard Packing or Customers'demand
Delivery Time: 10-15 work days
Payment Terms: L/C, T/T
Supply Ability: 1000 Mt/month
Detailed Product Description
Gardes: 1.6511 / SAE4340 / SNCM439 Heat Treatment: Annealed / Q + T
Surface Treatment: Black / Machined / Milling Test: SGS/Ut 100%/Element Testing
Certificate: ISO / Mill Certificate Service: Sample Free And 24 Hours Online
High Light:

alloy steel plate

,

hot rolled steel plate

 

1.6511 / SAE4340 Hot Rolled Alloy Special Steel For Mechanical

 

 

Introduction:

 

1.6511 / SAE4340 has high strength, toughness and good hardenability and anti-overheating stability, but the white point sensitivity is high, and there is temper brittleness.The welding property is poor, before welding, it needs to be preheated by high temperature. After welding, the stress should be eliminated and used after adjustment.

 

 

Available size(mm):

 

Flat Bar Size(mm) Round Bar Size(mm)
Thickness Width Length Diameter Length
6-80 205-610 2000-6000 12-180 300-6000

 

All the sizes as require can be customerized as fresh production with MOQ,products, of required specifications can be developed/produced per international, chinese or industry standards, or based on agreements with customers.

 

 

Similar grades: DIN-1.6511, AISI-SAE4340, JIS-SNCM439, GB-40CrNiMo

 

 

Chemical Composition(%):

 

C Si Mn Cr Ni P S Mo
0.38-0.43 0.15-0.35 0.60-0.80 0.70-0.90 1.65-2.00 ≤0.035 ≤0.035 0.20-0.30

 

 

Feature:

 

It has high strength, toughness and excellent quenching and anti-overheating stability, but the white point is highly sensitive and has a temper brittleness.The welding property is poor, before welding, it needs to be preheated by high temperature. After welding, the stress should be eliminated and applied after adjustment.

 

 

Mechanical properties:
Tensile strength sigma b (MPa): ≥ 980(100)
Yield strength sigma s (MPa): ≥ 835(85)
Elongation delta 5 (%):

≥ 12

Cross sectional systolic (%): ≥ 55
Impact work Aku (J): ≥ 78
Impact toughness value alpha kv (J/cm²)A:

≥ 98 (10)

Sample size:

the sample size is 25mm
Heat treatment: (quenching 850 degrees; Coolant: oil; The tempering temperature is 600 degrees; Coolant: water, oil);
Steel annealing or high temperature backfired supply status. GBW is not equal to 269.

 

 

Applications:

 

Used as require good toughness, high strength, as well as the important conditioning of large size, heavy machinery such as high load of axial, turbine shaft, larger than 250 mm in diameter of helicopter rotor shaft, turbojet engine turbine shaft, blade, high load of transmission parts, fasteners of the crankshaft.Gear, etc.;Can also be used for operating temperature over 400 ℃ of rotor shaft and blade, etc.;It can also be used to make important parts for special performance after nitride treatment, and can be used in high strength steel after low temperature tempering or after isothermal quenching.

 

 

Quality Condition:

 

1. Both end of each bar must be cut

 

2. Ladle furnanced and vacuum de-gassed

 

3. Show heat No. on each bar

 

4. Surface condition the surface of the hot rolled square bar shall befree cracks, scar and wrinkles that affect the use of the billets. In case there is the above-mentioned defect, it shall be remove.

 

5. The mill test certificate shall show the chemical composition, and it is guaranteed that the chemical composition shall be within the limit stipulated in the contract.

 

 

Product photos:

 

1.6511 / SAE4340 Hot Rolled Alloy Steel Annealed Heat Treatment In Mechanical 0

1.6511 / SAE4340 Hot Rolled Alloy Steel Annealed Heat Treatment In Mechanical 1

 

Contact Details
Guangzhou Changfeng Steel Co., LTD

Contact Person: Echo

Tel: +86 18148729336

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