IS 5517:1993 42Cr6V1 Steel: Specifications & Listings
IS 5517:1993 42Cr6V1: 42Cr6V1 is a steel in IS 5517:1993 (Steels for Hardening and Tempering), intended in general for forgings and machined parts for engineering or automobile purposes.
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
V
S
P
0.37-0.47
0.15-0.35
0.50-0.80
1.40-1.70
0.07-0.12
<=0.035
<=0.035
Mechanical Properties
Tensile Strength
740-880 MPa
Yield Strength (0.2% proof)
540 MPa min
Elongation
>=14%
Izod Impact
55 J min
Hardness (annealed)
<=220 HB
Condition
Hardened and tempered, ruling section up to 160 mm
More data from IS 5517:1993
From the standard
Heat treatment temperatures5 values
Hot working temperature
1100 to 850 °C
Normalising temperature
850 to 880 °C
Hardening temperature
830 to 860 °C
Quenching medium
Oil
Tempering temperature
480 to 650 °C
Source: IS 5517:1993 with Amendments 1 to 3, Table 4
Properties after hardening and tempering, by ruling section4 sections
Tensile strength (MPa)
0.2% proof stress, min (MPa)
Elongation, min (%)
Izod impact, min (J)
Limiting ruling section (mm)
740 to 880
540
14
55
160
880 to 1030
685
12
48
100
980 to 1180
785
11
41
40
1080 to 1270
885
12
34
16
Values apply to test bars taken from rounds along the direction of rolling. Izod impact values are for fine grained steels.
Source: IS 5517:1993 with Amendments 1 to 3, Table 5
Hardness by delivery condition2 conditions
As annealed (A), maximum
220 HB
As rolled (R), maximum
250 HB
Source: IS 5517:1993 with Amendments 1 to 3, Table 6
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