GOST 4543 20HNM Steel — Specifications & Listings

GOST 4543

20HNM is an alloy carburizing steel with chromium, nickel, and molybdenum additions. It exhibits good core toughness and surface wear resistance after treatment.

Category: Alloy Steel

Grade Details

Grade	GOST 4543 20HNM
Standard	GOST 4543
Description	20HNM is an alloy carburizing steel with chromium, nickel, and molybdenum additions. It exhibits good core toughness and surface wear resistance after treatment.
Applications	Used for gears, splined shafts, bushings, axles, and machine drive components.

Chemical Composition (%)

C	Cr	Ni	Mo	Mn
0.17-0.24	0.4-0.7	0.4-0.7	0.15-0.25	0.5-0.8

Mechanical Properties

tensile_strength	850-1000 MPa
yield_strength	685 MPa min
elongation	12% min
hardness	56-60 HRC (case)

Active GOST 4543 20HNM Listings on M-EX

No active GOST 4543 20HNM listings at this time.