SMnC420 Round Bar — Listings

All SMnC420 Round Bar listings on M-EX.

Grade Details

Grade	SMnC420
Standard	JIS G4052
Description	Japanese case hardening Mn-Cr steel per JIS G4053. Close equivalent to 20MnCr5 with similar chemistry and case hardening properties.
Applications	Case hardened gears, shafts, cams, pins, automotive components

Active SMnC420 Round Bar Listings 1

SMnC420 Round Bar

1.900 MT · Closes 19 May 2026

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Related: All Round Bar grades · Alloy Steel