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Chemical composition % of grade 39NiCrMo3
|
C |
Si |
Mn |
Ni |
P |
S |
Cr |
Mo |
|
0.35 - 0.43 |
max 0.4 |
0.5 - 0.8 |
0.7 - 1 |
max 0.025 |
max 0.035 |
0.6 - 1 |
0.15 - 0.25 |
Mechanical properties of grade 39NiCrMo3
|
Nominal diameter (mm): |
to 16 |
16 - 40 |
40 - 100 |
100 - 160 |
160 - 250 |
|
Rm - Tensile strength (MPa) (+QT) |
980-1180 |
930-1130 |
880-1080 |
830-980 |
740-880 |
|
Nominal diameter(mm): or for flat products thickness: to 8; 8-20; 20-60; 60-100; 100-160; |
to 16 |
16 - 40 |
40 - 100 |
100 - 160 |
160 - 250 |
Re - Upper yield strength or
Rp0.2 - 0.2% proof strength (MPa) (+QT) |
785 |
735 |
685 |
635 |
540 |
|
Nominal thickness (mm): |
to 16 |
16 - 40 |
40 - 100 |
100 - 160 |
160 - 250 |
|
A - Min. elongation Lo = 5,65 √ So (%) (+QT), round products |
11 |
11 |
12 |
12 |
13 |
|
Nominal diameter (mm): or for flat products thickness: to 8; 8-20; 20-60; 60-100; 100-160; |
to 16 |
16 - 40 |
40 - 100 |
100 - 160 |
160 - 250 |
|
Z - Reduction in cross section on fracture (%) (+QT) |
40 |
40 |
45 |
50 |
50 |
|
Brinell hardness (HBW): (+A) |
240 |
