IS 11169 (Part 1):2022 20Ni2Cr2Mo3 Steel: Specifications & Listings
IS 11169 (Part 1):2022 20Ni2Cr2Mo3: Cold heading quality alloy case hardening steel 20Ni2Cr2Mo3 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. It can be ordered with hardenability requirements (H).
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
0.18-0.23
0.40-0.60
<=0.35
0.70-0.90
0.20-0.30
0.40-0.70
<=0.030
<=0.040
0.15-0.35
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)
Silicon
Other silicon ranges are permitted when agreed by purchaser and supplier
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
Hardenability, end quench test (H)Hardness band
Hardness band (HRC, minimum to maximum) by distance from the quenched end (1/16 inch)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
18
20
22
24
26
28
30
32
Distance from quenched end (1/16 inch)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
18
20
22
24
26
28
30
32
Maximum, HRC
48
47
45
42
38
35
33
31
30
29
28
27
26
26
25
25
24
24
23
23
23
23
22
22
Minimum, HRC
41
38
35
30
26
24
22
21
20
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Applies when ordered with the symbol H; otherwise for guidance only. Jominy test as per IS 3848, austenitizing at 860 ± 5 °C. Distances are in sixteenths of an inch (25.4/16 mm), as printed.
Source: IS 11169 (Part 1):2022, Table B.6
Active IS 11169 (Part 1):2022 20Ni2Cr2Mo3 Listings on M-EX (For Sale)