Description
Technical Parameters
DIN-37Cr4 steel round bar
Round Bar Products Description
37Cr4 alloy round bar is a very important industrial material, widely used in aviation, aerospace, petrochemical and other fields.
37Cr4 round stock steel has excellent high temperature performance, corrosion resistance and mechanical strength, so it is widely used in various extreme environments such as high temperature, high pressure and strong corrosion.
DIN-37Cr4 steel round bar Products Details
Chemical composition % of steel 37Cr4 (1.7034): EN 10083-3-2006:
| C | Si | Mn | P | S | Cr |
| 0.34 - 0.41 | max 0.4 | 0.6 - 0.9 | max 0.025 | max 0.035 | 0.9 - 1.2 |
Mechanical properties of steel 37Cr4 (1.7034):
| Nominal diameter (mm): | to 16 | 16 - 40 | 40 - 100 |
| Rm - Tensile strength (MPa) (+QT) | 950-1150 | 850-1000 | 750-900 |
| Rm - Tensile strength (MPa) (+AC) | 590 |
| Nominal diameter(mm): or for flat products thickness: to 8; 8-20; 20-60; | to 16 | 16 - 40 | 40 - 100 |
| Re - Upper yield strength or Rp0.2 - 0.2% proof strength (MPa) (+QT) |
750 | 630 | 510 |
| KV - Impact energy (J) (+QT) | +20° 35 |
| Nominal thickness (mm): | to 16 | 16 - 40 | 40 - 100 |
| A - Min. elongation Lo = 5,65 √ So (%) (+QT), round products | 11 | 13 | 14 |
| Nominal diameter (mm): or for flat products thickness: to 8; 8-20; 20-60; | to 16 | 16 - 40 | 40 - 100 |
| Z - Reduction in cross section on fracture (%) (+QT) | 35 | 40 | 40 |
| Z - Reduction in cross section on fracture (%) (+AC) | 60 |
| Brinell NMness (HBW): (+S) | 255 |
| Brinell NMness (HBW): (+A) | 235 |
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