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EN24 (817M40T)

High tensile steel

EN24 | 817M40T | 34CrNiMo6 Engineering steel

EN24 | 817M40T | 34CrNiMo6 is a very high strength steel alloy which is supplied hardened and tempered ideal for gears.

The grade is a nickel chromium molybdenum combination, hence the European grade 34CrNiMo6. EN24 offers high tensile steel strength, with good ductility and wear resistance characteristics. With relatively good impact properties at low temperatures, EN24 is also suitable for a variety of raised temperature applications.

EN24 Engineering Steel is easy to treat and temper and is supplied hardened and tempered. The alloy offers a good combination of strength, ductility and wear resistance. It is a very high strength alloy engineering steel.

Steel stock range

High Peak Steels stock EN24 | 817M40T | 34CrNiMo6 in black steel round, square & flat bar and bright steel round bar . EN24 is also available in forged block form that we can cold saw to size.

Associated standards

UK Standard EN24 | European Grade 34CrNiMo6 | Werkstoff 1.6565, 1.6582 | SAE/AISI 4340

EN24 availability

EN24 PRICES & STOCK

Typical Applications

  • HIGH STRENGTH SHAFTS
  • PUNCHES & DIES
  • DRILL BUSHINGS
  • RETAINING RINGS
  • GEARS

EN24 | 817M40T | 34CrNiMo6 black steel

ProductMin sizeMax size
codes-round240mm dia500mm dia
codes-flat220mm x 10mm900mm x 300mm
codes-square225mm150mm
codes-hex2

EN24 | 817M40T | 34CrNiMo6 bright mild steel

ProductMetric sizes
Min
Max		Imperial sizes
Min
Max
codes-round210mm dia75mm dia1/2" dia3" dia
codes-flat2
codes-square2
codes-hex2

EN24 | 817M40T | 34CrNiMo6 Chemical Composition

CSiMnSPCrNiMo
Min0.360.10.4511.30.2
Max0.440.350.70.040.0351.41.70.35

EN24 | 817M40T | 34CrNiMo6 Mechanicals

Yield
N/mm2		0.2% proof
N/mm2		UTS (Rm)
N/mm2		Elong (A)
%		Red of Area (Z)
%		Hardness
HB		Impact Test (KV)
J
Quenched & Tempered to condition T (min)
6808501324850
Quenched & Tempered to condition T (max)
1000302
Quenched & Tempered to condition U (min)
7559251226942
Quenched & Tempered to condition U (max)
1075331
Quenched & Tempered to condition V (min)85010001229342
Quenched & Tempered to condition V (min)85011501229342
Drawn Quenched & Tempered to condition T (min)700850924850
Drawn Quenched & Tempered to condition T (max)1000302

For more information on EN24 high tensile steel Please get in touch

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