EN 10083-1:1996 36NiCrMo16 Steel: Specifications & Listings
EN 10083-1:1996 36NiCrMo16: A nickel chromium molybdenum alloy steel for quenching and tempering to EN 10083-1:1991 + A1:1996 (steel number 1.6773). Supplied as semi-finished products, bars, rod, wide flats, sheet, plate and strip, and forgings (clause 1.1). Quenched and tempered tensile strength 1250 to 1450 MPa for ruling sections up to 16 mm.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Chemical Composition (%)
C
Cr
Mn
Mo
Ni
P
S
Si
0.32-0.39
1.60-2.00
0.30-0.60
0.25-0.45
3.60-4.10
<=0.030
<=0.025
<=0.40
Mechanical Properties
Condition
Quenched and tempered, ruling section d <= 16 mm
Elongation
9% min
Hardness
Soft annealed: 269 HB max
Tensile Strength
1250 to 1450 MPa
Yield Strength
1050 MPa min
More data from EN 10083-1:1996
From the standard
Other composition limitsTable 3 and its notes
Designation as printed
36NiCrMo16
Steel number
1.6773
Improved machinability
Steels with lead or higher sulphur, up to about 0.100% S, may be supplied on request (Table 3, note 3)
Elements not quoted in Table 3 are not intentionally added without the purchaser's agreement, other than for finishing the heat. With hardenability requirements, slight deviations within Table 4 are permitted except for carbon, phosphorus and sulphur.
Source: EN 10083-1:1991 + A1:1996 (DIN EN 10083-1:1996-10), Table 3 and its notes
Mechanical properties, quenched and tempered5 sections
Ruling section
Yield strength Re, min (MPa)
Tensile strength Rm (MPa)
Elongation A, min (%)
Reduction of area Z, min (%)
Impact KV, min (J)
d <= 16 mm, t <= 8 mm
1050
1250 to 1450
9
40
30
16 mm < d <= 40 mm, 8 mm < t <= 20 mm
1050
1250 to 1450
9
40
30
40 mm < d <= 100 mm, 20 mm < t <= 60 mm
900
1100 to 1300
10
45
35
100 mm < d <= 160 mm, 60 mm < t <= 100 mm
800
1000 to 1200
11
50
45
160 mm < d <= 250 mm, 100 mm < t <= 160 mm
800
1000 to 1200
11
50
45
Re is the upper yield strength or, if no yield phenomenon occurs, the 0.2% proof strength; A on gauge length 5.65 times the root of the original cross section; KV on longitudinal Charpy V-notch test pieces, average of 3 values, no single value below 70% of the minimum average value. Ruling sections as in Annex A. Sizes not listed are not covered by the standard.
Source: EN 10083-1:1991 + A1:1996 (DIN EN 10083-1:1996-10), Table 9
Maximum hardness by delivery conditionTable 8
Treated to improve shearability (+S), max
Not specified
Soft annealed (+A), max
269 HB
Values also apply to the grades with hardenability requirements (+H, +HH, +HL); not applicable to continuously cast slabs not further worked. Where shearability is important, order this steel soft annealed.
Source: EN 10083-1:1991 + A1:1996 (DIN EN 10083-1:1996-10), Table 8
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
45
50
Distance from quenched end (mm)
1.5
3
5
7
9
11
13
15
20
25
30
35
40
45
50
Maximum, HRC
57
56
56
56
56
56
55
55
55
55
55
55
55
55
55
Minimum, HRC
50
49
48
48
48
48
47
47
47
47
47
47
47
47
47
Applies when ordered with the symbol +H. End quench test at 850 ± 5 deg C (Table 12).
Source: EN 10083-1:1991 + A1:1996 (DIN EN 10083-1:1996-10), Table 5
Restricted hardenability (+HH, +HL), HRCTable 7
Limit
1.5 mm
3 mm
5 mm
7 mm
9 mm
11 mm
13 mm
15 mm
20 mm
25 mm
30 mm
35 mm
40 mm
45 mm
50 mm
HH max.
57
56
56
56
56
56
56
55
55
55
55
55
55
55
55
HH min.
52
51
51
51
51
51
51
50
50
50
50
50
50
50
50
HL max.
55
54
53
53
53
53
53
52
52
52
52
52
52
52
52
HL min.
50
49
48
48
48
48
48
47
47
47
47
47
47
47
47
Restricted scatter bands by distance from the quenched end. At 13 mm the +H band of Table 5 prints 47 to 55 HRC where the +HH maximum here prints 56 and the +HL minimum 48; both tables are shown as printed.
Source: EN 10083-1:1991 + A1:1996 (DIN EN 10083-1:1996-10), Table 7
Heat treatmentTable 12
Quenching
865 to 885 deg C
Quenching agent
Air or oil
Tempering
550 to 650 deg C
End quench test
850 ± 5 deg C
Guidance values except the end quench test temperature, which is binding. Lower quenching temperatures generally for water, upper for oil; austenitizing at least 30 min, tempering at least 60 min (guide values).
Source: EN 10083-1:1991 + A1:1996 (DIN EN 10083-1:1996-10), Table 12
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