709M40 / EN19

1% Chromium-Molybdenum Through Hardening Steel

Surcharge

£549.11 per tonne

Surcharge Price History for 709M40 / EN19

NOV 21 FEB 22 MAY 22 AUG 22 TODAY
£557.85 £559.50 £825.70 £696.70 £549.11

Product Method

Rolled or Forged

Finishes

Black Bar or Bright Bar

Description

709M40 grade steel is a versatile low alloy steel that possesses good tensile and shock resistance properties combined with ductility.

Its resistance to wear can be considerably increased by flame hardening and it is also suitable for nitriding (for maximum wear and abrasion resistance).

Bars are often supplied in the hardened and tempered condition with a tensile strength range of 850-1000N/mm². The bars are readily machinable so that the components can be put into service without the cost of further treatment.

Bars can also be supplied in the softened state which require hardening and tempering, but will give increased machinability.

Size Range

32mm - 860mm Dia

Typical applications of 709M40 grade steel

  • Axle shafts
  • Crankshafts
  • Gears
  • Induction hardened pins

709M40 steel is still often referred to as EN19 steel - its equivalent grade under the previous BS 970: 1955 standard.

Similar Grades

BS 970
708M40
£503.61
European
42CrMo4
£514.99
SAE/AISI
4140 mod 18-22HRc
£492.09
4140 mod 30-36HRc
£492.09

Equivalent Grades

BS 970: 1955
EN19
£123

Grades for Potential Substitution (Lesser)

BS 970
945M38
£652.06
European
41Cr4
£411.26

Grades for Potential Substitution (Greater)

SAE/AISI
4145 mod
£492.09
4340
£1000.28
BS 970
817M40 / EN24
£968.58
826M40 / EN26
£1317.98

Services

Stock Availability

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