GOST 4543 40HNMA Steel — Specifications & Listings

GOST 4543

40HNMA is a nickel-chromium-molybdenum alloy steel with high hardenability and fatigue strength. It is suitable for heavily loaded machine components requiring toughness.

Category: Alloy Steel

Grade Details

Grade	GOST 4543 40HNMA
Standard	GOST 4543
Description	40HNMA is a nickel-chromium-molybdenum alloy steel with high hardenability and fatigue strength. It is suitable for heavily loaded machine components requiring toughness.
Applications	Used for gears, shafts, spindles, connecting rods, and aerospace parts.

Chemical Composition (%)

C	Cr	Ni	Mo	Mn	Si
0.36-0.44	0.6-0.9	1.25-1.65	0.15-0.3	0.5-0.8	0.17-0.37

Mechanical Properties

tensile_strength	930-1180 MPa
yield_strength	785 MPa min
elongation	12% min
hardness	269-341 HB

Active GOST 4543 40HNMA Listings on M-EX

No active GOST 4543 40HNMA listings at this time.