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🇺🇸 USA equivalent of

420A / X20Cr131.4021

AISI 420S42000REF

Standard: AISI · Source: ASTM A276

AISI 420 covers wide C range — 1.4021 is the 0.16-0.25% C variant (420A)

Other international equivalents

CountryStandardGradeMatch
🇪🇺EuropeENX20Cr13100%
🇫🇷FranceAFNORZ20C1398%
🇬🇧United KingdomBS420S29 / 420S3797%
🇯🇵JapanJISSUS420J193%