IS 11169 (Part 1):2022 20Ni2Cr2Mo2 Steel: Specifications & Listings
IS 11169 (Part 1):2022 20Ni2Cr2Mo2: Cold heading quality alloy case hardening steel 20Ni2Cr2Mo2 to IS 11169 (Part 1):2022, for parts case hardened after cold heading or cold extrusion, supplied as wire rod, bars or wire of 2 to 100 mm. Maximum tensile strength in the annealed condition is 590 MPa. It can be ordered with hardenability requirements (H, HH or HL).
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Chemical Composition (%)
C
Cr
Cu
Mn
Mo
Ni
P
S
Si
0.17-0.23
0.35-0.70
<=0.25
0.65-0.95
0.15-0.25
0.40-0.70
<=0.025
<=0.025
0.15-0.35
Mechanical Properties
Hardness, ferrite-pearlite (+FP)
149-194 HB
Tensile Strength, annealed (+AC)
<=590 MPa (over 5 to 40 mm)
More data from IS 11169 (Part 1):2022
From the standard
Other composition limitsfrom the table notes and clauses
Values
Maximum unless a range is given (ladle analysis)
Ordered with hardenability
Small deviations from these limits are allowed (not for sulphur and phosphorus): up to 0.01 percent for carbon and the Table 1 values for other elements
Deoxidation
Aluminium killed (clause 6.2)
Elements not listed are not added intentionally without the purchaser's agreement, except those used to finish the heat.
Source: IS 11169 (Part 1):2022, Table B.2 and its notes, clause 6.2
Tensile strength and reduction of area by delivery conditionby delivery condition and size
Delivery condition
Diameter (mm)
Tensile strength, max (MPa)
Reduction of area, min (%)
+AC
over 5 to 10
590
60
+AC
over 10 to 40
590
60
+AR+C+AC
2 (incl.) to 5
590
62
+AR+C+AC
over 5 to 10
570
62
+AR+C+AC
over 10 to 40
570
62
+AR+C+AC+LC
2 (incl.) to 5
630
60
+AR+C+AC+LC
over 5 to 10
610
60
+AR+C+AC+LC
over 10 to 40
610
60
+AC+C
over 5 to 10
720
57
+AC+C
over 10 to 40
710
57
Codes: +AR as hot rolled, +PE peeled, +C cold drawn, +AC annealed to spheroidized carbides, +LC skin passed. For non-circular sections the properties are agreed between manufacturer and purchaser. Table B.5 heads the reduction of area columns for +AR+C+AC+LC and +AC+C as maximum; they are shown here as minimum, like every other table of the standard.
Source: IS 11169 (Part 1):2022, Table B.5
Hardness in the delivery condition1 condition
Treated to ferrite-pearlite structure (+FP), over 5 to 40 mm
149 to 194 HB
Brinell hardness range for bars delivered treated to a ferrite-pearlite structure.
Source: IS 11169 (Part 1):2022, Table B.5
Hardenability, end quench test (H)Hardness band
Hardness band (HRC, minimum to maximum) by distance from the quenched end (mm)
1.5
3
5
7
9
11
13
15
20
25
30
35
40
Distance from quenched end (mm)
1.5
3
5
7
9
11
13
15
20
25
30
35
40
Maximum, HRC
49
48
45
42
36
33
31
30
27
25
24
24
23
Minimum, HRC
41
37
31
25
22
20
-
-
-
-
-
-
-
Applies when ordered with the symbol H; otherwise for guidance only. Jominy test as per IS 3848, austenitizing at 880 ± 5 °C.
Source: IS 11169 (Part 1):2022, Table B.6
Restricted hardenability bands, HH and HL (HRC by distance from quenched end, mm)HH and HL ordering
Band
1.5
3
5
7
9
11
13
15
20
25
30
35
40
HH maximum
49
48
45
42
36
33
31
30
27
25
24
24
23
HH minimum
44
41
36
31
27
24
22
21
-
-
-
-
-
HL maximum
46
44
40
36
31
29
27
26
23
21
20
20
-
HL minimum
41
37
31
25
22
20
-
-
-
-
-
-
-
HH: the upper limit matches the H band upper limit; HL: the lower limit matches the H band lower limit. Austenitizing at 880 ± 5 °C.
Source: IS 11169 (Part 1):2022, Table B.7
Active IS 11169 (Part 1):2022 20Ni2Cr2Mo2 Listings on M-EX (For Sale)