IS 4367:1991 07Cr4Mo6 Steel: Specifications & Listings
IS 4367:1991 07Cr4Mo6: 07Cr4Mo6 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
Ni
Cr
Mo
S
P
<=0.12
0.15-0.60
0.40-0.70
<=0.30
0.70-1.10
0.45-0.65
<=0.035
<=0.035
Mechanical Properties
Tensile Strength
380-550 MPa
Yield Strength
225 MPa min
Elongation
>=19%
Izod Impact
60 J min
Hardness (soft annealed)
<=170 HB
Condition
Normalised and tempered, ruling section up to 40 mm
More data from IS 4367:1991
From the standard
Properties by ruling section1 section
Tensile strength (MPa)
Yield strength, min (MPa)
Elongation, min (%)
Izod impact, min (J)
Hardness (HB)
Limiting ruling section (mm)
380 to 550
225
19
60
Not specified
40
Test condition: normalised and tempered. These properties are for guidance only; other values may be mutually agreed between the customer and the supplier. Maximum hardness in the soft annealed condition: 170 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 07Cr4Mo6 Listings on M-EX (For Sale)