IS 5517:1993 37Mn5Si5 Steel: Specifications & Listings
IS 5517:1993 37Mn5Si5: 37Mn5Si5 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
S
P
0.33-0.41
1.10-1.40
1.10-1.40
<=0.035
<=0.035
Mechanical Properties
Tensile Strength
800-950 MPa
Yield Strength (0.2% proof)
550 MPa min
Elongation
>=14%
Izod Impact
34 J min
Hardness (annealed)
<=220 HB
Condition
Hardened and tempered, ruling section up to 100 mm
More data from IS 5517:1993
From the standard
Heat treatment temperatures5 values
Hot working temperature
1050 to 850 °C
Normalising temperature
860 to 890 °C
Hardening temperature
830 to 850 °C
Quenching medium
Water or Oil
Tempering temperature
530 to 670 °C
Source: IS 5517:1993 with Amendments 1 to 3, Table 4
Properties after hardening and tempering, by ruling section3 sections
Tensile strength (MPa)
0.2% proof stress, min (MPa)
Elongation, min (%)
Izod impact, min (J)
Limiting ruling section (mm)
800 to 950
550
14
34
100
900 to 1050
650
12
27
40
1000 to 1200
800
11
21
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 condition3 conditions
As annealed (A), maximum
220 HB
As rolled (R), maximum
250 HB
Treated for improved machinability (M), maximum
220 HB
For improved machinability the microstructure of the steel may be mutually agreed between the manufacturer and the purchaser.
Source: IS 5517:1993 with Amendments 1 to 3, Table 6
Active IS 5517:1993 37Mn5Si5 Listings on M-EX (For Sale)