IS 11169 (Part 1):2022 40Cr4Mo2 Steel: Specifications & Listings
IS 11169 (Part 1):2022 40Cr4Mo2: Cold heading quality alloy steel 40Cr4Mo2 to IS 11169 (Part 1):2022 for quenching and tempering 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).
Cold heading and cold extrusion of parts that are quenched and tempered; the standard covers bars, wire rods and wires of 2 to 100 mm (clause 1.1, Annex C)
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
0.38-0.43
0.80-1.10
<=0.35
0.75-1.00
0.15-0.25
<=0.25
<=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)
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 C.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
60
60
60
59
59
58
58
57
57
56
56
55
55
54
54
53
52
51
49
48
47
46
45
44
Minimum, HRC
53
53
52
51
51
50
48
47
44
42
40
39
38
37
36
35
34
33
33
32
32
31
31
30
Applies when ordered with the symbol H; otherwise for guidance only. Jominy test as per IS 3848, austenitizing at 850 ± 5 °C. Distances are in sixteenths of an inch (25.4/16 mm), as printed.
Source: IS 11169 (Part 1):2022, Table C.9
Active IS 11169 (Part 1):2022 40Cr4Mo2 Listings on M-EX (For Sale)