EN24 Steel
Technical Data

High tensile alloy steel grade with excellent toughness and wear resistance. Widely used for high duty shafts, axles, gears, and aircraft components.

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Chemical Composition (%)

Element Content (%)
Carbon (C) 0.36 – 0.44
Silicon (Si) 0.10 – 0.35
Manganese (Mn) 0.45 – 0.70
Chromium (Cr) 1.00 – 1.40
Molybdenum (Mo) 0.20 – 0.35
Nickel (Ni) 1.30 – 1.70
Phosphorus (P) 0.050 max
Sulphur (S) 0.050 max

Mechanical Properties

Typical properties in Condition 'T'

Tensile Strength

850 – 1000 MPa

Yield Strength

680 MPa (min)

Elongation

13 % (min)

Hardness

248 – 302 HB

Heat Treatment & Tempering

General guidelines for forging and heat treatment processes

Forging & Annealing

  • Forging: Heat slowly to 1150°C. Do not forge below 850°C. Cool slowly in ash or sand after forging.
  • Annealing: Heat to 840°C, allow to soak thoroughly. Cool naturally in the furnace.
  • Normalizing: Heat to 830°C - 850°C and cool in still air.

Hardening & Tempering

  • Hardening: Heat uniformly to 820°C - 850°C until heated through. Quench in oil.
  • Tempering: Heat to 540°C - 660°C depending on the required properties. Cool in still air.
  • Avoid tempering in the range of 250°C - 350°C to prevent temper embrittlement.

General Purpose Usecases

Common industrial applications for EN24 high tensile steel

Gears & Pinions

Heavy-duty power transmission gears requiring immense strength.

High Duty Shafts

Propeller shafts, axles, and spline shafts for automotive and marine.

Aircraft Components

Critical aerospace parts requiring extreme toughness and fatigue resistance.

Enquiry for EN24 Steel

Contact us for quotes and stock availability.

Our Address

1B-225 B.P. NIT Faridabad, Haryana, India - 121001

Phone Number

+91 9818700080

Email Address

praveensteel@gmail.com

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