IS 4367:1991 50Cr4V2 Steel: Specifications & Listings
IS 4367:1991 50Cr4V2: 50Cr4V2 is a steel in IS 4367:1991 (Alloy Steel Forgings for General Industrial Use), which covers forgings in the as forged, heat-treated or machined condition.
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
0.45-0.55
0.10-0.35
0.50-0.80
0.90-1.20
0.15-0.30
<=0.035
<=0.035
Mechanical Properties
Tensile Strength
900-1100 MPa
Yield Strength
700 MPa min
Elongation
>=12%
Izod Impact
45 J min
Hardness
266-325 HB
Hardness (soft annealed)
<=240 HB
Condition
Hardened and tempered, ruling section up to 100 mm
More data from IS 4367:1991
From the standard
Properties by ruling section2 sections
Tensile strength (MPa)
Yield strength, min (MPa)
Elongation, min (%)
Izod impact, min (J)
Hardness (HB)
Limiting ruling section (mm)
900 to 1100
700
12
45
266 to 325
100
1000 to 1200
800
10
45
295 to 355
40
Test condition: hardened and tempered. Maximum hardness in the soft annealed condition: 240 HB.
Source: IS 4367:1991 with Amendments 1 and 2, Table 3
Sulphur, phosphorus and aluminium limitsordering options
Option 1
Sulphur and phosphorus 0.030 max each
Option 2
Sulphur 0.020 to 0.035, phosphorus 0.035 max
Aluminium, when the steel is aluminium killed
0.02 to 0.05
The purchaser orders sulphur and phosphorus under option 1 or option 2.
Source: IS 4367:1991 with Amendments 1 and 2, Table 1, notes 1 and 2
Active IS 4367:1991 50Cr4V2 Listings on M-EX (For Sale)