GOST 4543 40HNMA Steel — Specifications & Listings

GOST 454340HNMA is a nickel-chromium-molybdenum alloy steel with high hardenability and fatigue strength. It is suitable for heavily loaded machine components requiring toughness.

Forms: Round Bar Category: Alloy Steel
Grade Details
GradeGOST 4543 40HNMA
StandardGOST 4543
Description40HNMA is a nickel-chromium-molybdenum alloy steel with high hardenability and fatigue strength. It is suitable for heavily loaded machine components requiring toughness.
ApplicationsUsed 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

GOST 4543 40HNMA Round Bar
2.900 MT
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GOST 4543 40HNMA Round Bar
1.800 MT
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