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EN19 (709M40T)

Alloy steel

EN19 | 709M40T | 42CrMo4 Engineering steel

EN19 | 709M40T | 42CrMo4 is a high quality alloy steel with tensile strength ideal for load bearing.

With a combination of good ductility and shock resistance, EN19 steel is suitable for applications with very high loading such as engine gear boxes. Popular in the automotive sector it is possible to machine the material extremely accurately, in recent years EN19 has become an established material in the Oil & Gas sector. The material lends itself well to any application where strength is a primary consideration.

EN19 is a high tensile steel with good ductility and shock resistance. The alloy offers good wear resistance too and can be case hardened. It is a high quality alloy engineering steel.

Steel stock range

High Peak Steels stock EN19 / 42CrMo4 steel in black round, square and flat bar and bright round bar.

Associated standards

UK Standard EN19 | European Grade 42CrMo4 | Werkstoff 1.7225 | SAE/AISI 4140

EN19 availability

EN19 PRICES & STOCK

Typical Applications

  • AUTOMOTIVE GEARS AND PARTS
  • SHAFTS
  • TOWING PINS
  • LOAD BEARING TIE RODS
  • OIL & GAS INDUSTRY APPLICATIONS

EN19 | 709M40T | 42CrMo4 black steel

ProductMin sizeMax size
codes-round225mm dia600mm dia
codes-flat2
codes-square2
codes-hex2

EN19 | 709M40T | 42CrMo4 bright mild steel

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

EN19 | 709M40T | 42CrMo4 Chemical Composition

CSiMnSPCrNiMo
Min0.360.10.70.90.25
Max0.440.3510.040.0351.20.40.35

EN19 | 709M40T | 42CrMo4 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 R (min)
4957001520128
Quenched & Tempered to condition R (max)
850255
Quenched & Tempered to condition S (min)
5857751522350
Quenched & Tempered to condition S (max)
925277
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
Drawn Quenched & Tempered to condition T
(min)		700850924850
Drawn Quenched & Tempered to condition T
(max)		1000302

For more information on EN19 high tensile steel Please get in touch

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