EN26

2½% Nickel Chromium Molybdenum alloy steel with higher Carbon content. Supplied in the hardened and tempered condition. Higher strength than EN25

Available Product Shapes

Round Bars

Technical Data

C Si Mn Ni Cr Mo S P
0.40 0.25 0.60 2.50 0.65 0.55 0.02 0.02
Forge Normalize Anneal Stress Relieve Harden Temper
850-1050 °C, Slow furnace cool. 850-880 °C, Air cool. 650-700 °C, Cool slowly in controlled furnace. In the quenched and tempered condition, about 30-50 °C below the tempering temperature. Air cool. In the annealed condition, 600-650 °C. Air cool. 830-860 °C, Oil quench. 540-680 °C hold for 1 hour (min). at temperature, air cool. (see tempering chart).
AS DIN BS AISI
X9940 1.6745 EN26 -

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