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IS 1570 (Part 4):1988 20Mn5Cr5 Steel: Specifications & Listings

IS 1570 (Part 4):1988 20Mn5Cr5: 20Mn5Cr5: alloy steel (constructional or spring group) with specified chemical composition. Specified in IS 1570 (Part 4):1988.

Category: Alloy Steel
Grade Details
GradeIS 1570 (Part 4):1988 20Mn5Cr5
Standard IS 1570 (Part 4):1988
Equivalent / Similar Grades
Grade Standard Region Live on M-EX
IS 11169 (Part 1) 20Mn5Cr5 IS 11169 (Part 1):2022 India No activity yet
Grade ComparisonCompare With a Specific Grade →
Grade Standard Match
EN 10084 20MnCr5 EN 10084:2008 Strong Match
EN 10084 20MnCrS5 EN 10084:2008 Strong Match
IS 11169 (Part 1) 20MnCr5 IS 11169 (Part 1):1984 Close Alternative
SAE J404 5120 SAE J404:2009 Close Alternative
SAE J404 5120 SAE J404:2000 Close Alternative
BS 970 EN207 BS 970:1955 Close Alternative
IS 4367 20Mn5Cr5 IS 4367:1991 Close Alternative
EN 10084 16MnCr5 EN 10084:2008 Close Alternative
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Chemical Composition (%)
C Si Mn Cr
0.17-0.22 0.10-0.35 1.00-1.40 1.00-1.30
Mechanical Properties
Tensile Strength >=990 MPa
Elongation >=8%
Izod Impact >=38 J
Condition Case hardening steel, refined and quenched, core properties

More data from IS 1570 (Part 4):1988

From the standard
Core properties, case hardening steel, refined and quenched core properties
Tensile strength, min
990 MPa
Elongation, min
8%
Izod impact, min
38 J
If core strength exceeds 1 000 MPa the ruling section may equal the test piece diameter.
Source: IS 1570 (Part 4):1988, Table 9

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