NF A35-552 40NCD3 Steel — Specifications & Listings

NF A35-552

40NCD3 is a nickel-chromium-molybdenum alloy steel developed for high strength and impact resistance in heat-treated condition. It provides good hardenability and fatigue performance in demanding service conditions.

Category: Alloy Steel

Grade Details

Grade	NF A35-552 40NCD3
Standard	NF A35-552
Description	40NCD3 is a nickel-chromium-molybdenum alloy steel developed for high strength and impact resistance in heat-treated condition. It provides good hardenability and fatigue performance in demanding service conditions.
Applications	Used for gears, aircraft fittings, transmission shafts, crankshafts, heavy-duty bolts, and connecting rods.

Chemical Composition (%)

C	Si	Mn	Ni	Cr	Mo	P	S
0.37-0.43	0.15-0.40	0.50-0.80	1.00-1.40	0.60-1.00	0.15-0.30	0.035 max	0.035 max

Mechanical Properties

tensile_strength	850-1050 MPa
yield_strength	650-850 MPa
elongation	10-15%
hardness	250-320 HB

Active NF A35-552 40NCD3 Listings on M-EX

No active NF A35-552 40NCD3 listings at this time.