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1.6511 (AISI 4340) Alaşımlı imalat çeliği

4340 Steel (Reclamation Steel, AISI 4340, 1.6511) Properties

4340 steel is a nickel-added temper steel that offers better mechanical properties, higher hardness and wear resistance than 4140.

Alloyed Carbon Steels Performance Chart

  • Yield Strength 70% 70%
  • Tensile Strength 100% 100%
  • Elongation at Break 24% 24%
  • Cross Sectional Area Reduction 28% 28%

The information given above is only for comparison with ALLOYED CARBON STEELS. For detailed technical information and information about material selection, please contact our technical team.

4340 Steel Chemical Composition

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% Carbon
1.7225 (AISI 4140)
0.32-0.40
% Silicon (Max.)
1.7225 (AISI 4140)
0.40
% Manganese
1.7225 (AISI 4140)
0.5-0.8
% Phosphorus (Max.)
1.7225 (AISI 4140)
0.035
% Sulfur (Max.)
1.7225 (AISI 4140)
0.035
% Chromium
1.7225 (AISI 4140)
0.9-1.2
% Molybdenum
1.7225 (AISI 4140)
0.15-0.30
% Nickel
1.7225 (AISI 4140)
0.9-1.2

Other information;

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1.6511 (AISI 4340) at Önerler

  • The 4340s in our stocks are mainly ASİL ÇELİK products,

  • Optimum microstructure,

  • Maximum performance,
  • Reliable manufacturer,
  • High homogeneity,
  • High machinability.

Stock Information

  • As round the diameter increases from 22mm to 500mm with small intervals,
  • Only special production as flat bars and blocks,

Stock is kept continuously. For detailed stock measurements, please view our general stock list from the link below.

Click here to view our Önerler Çelik general stock list.

 We continuously diversify and strengthen our stocks in order to offer more suitable size options to our customers. 

Where is 4340 Steel (Reclamation Steel, AISI 4340, 1.6511) Used

  • In vehicle and engine construction,

  • Axle,

  • Axle sleeve,

  • Crankshaft,

  • Parts that have too much stress such as axles

4340 steel is commonly used.