nitriding-steel-en40b

We are one of the main suppliers of EN40B nitriding steel, delivering it to the different parts of the country.
EN40B is a chromium molybdenum steel generally supplied in the solidified and tempered “T” condition, which offers high wear imperviousness together with great toughness and ductility.
EN40B in T condition has a tensile of 850-1000 N/mm². It is described by its reasonableness for nitriding, which can give a hard wear resistant case in the scope of 61-65Rc. The generally low temperature of the nitriding process produces EN40B segments with a scale free surface, with minimum distortion during the warmth treatment process.

Chemical Composition

Element Min Max
Carbon, C 0.20 0.30%
Manganese, Mn 0.40 0.65%
Silicon, Si 0.10 0.35%
Molybdenum, Mo 0.40 0.70%
Chromium, Cr 2.90 3.50%
Sulfur, S 0.05
Phosphorous, P 0.05
Nickel, Ni 0.40%

Mechanical Properties

Condition Tensile N/mm² Yield N/mm² Elongation % Izod KCV J Hardness Brinell
U 925-1075 755 12 42 269-331
T 850-1000 680 13 50 248-302
S 775-925 585 15 50 223-277

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