Product Details:
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OD: | 6-300MM | Length: | 6m |
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Surface: | Black | Type: | Hot Rolled |
High Light: | forged steel round bar,carbon steel round bars |
Grade : | 34CrMo4 | |||||
Number: | 1.7220 | |||||
Classification: | Alloy special steel | |||||
Standard: |
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Equivalent grades: | Go here |
Chemical composition % of steel 34CrMo4 (1.7220): EN 10083-3-2006
C | Si | Mn | P | S | Cr | Mo |
0.3 - 0.37 | max 0.4 | 0.6 - 0.9 | max 0.025 | max 0.035 | 0.9 - 1.2 | 0.15 - 0.3 |
Mechanical properties of steel 34CrMo4 (1.7220)
Nominal diameter (mm): | to 16 | 16 - 40 | 40 - 100 | 100 - 160 | 160 - 250 |
Rm - Tensile strength (MPa) (+QT) | 1000-1200 | 900-1100 | 800-950 | 750-900 | 700-850 |
Nominal thickness (mm): | 0.3 - 3 |
Rm - Tensile strength (MPa) (+A) | 600 |
Nominal thickness (mm): | to 8 | 8 - 20 | 20 - 50 | 50 - 80 |
Rm - Tensile strength (MPa) (+QT) | 1000 | 900 | 800 | 750 |
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 - 330 |
Re - Upper yield strength or Rp0.2 - 0.2% proof strength (MPa) (+QT) |
800 | 650 | 550 | 450-500 | 410-450 |
Nominal thickness(mm): | 0.3 - 3 |
Rp0.2 0.2% proof strength (MPa) (+A) | 460 |
KV - Impact energy (J) longitud., (+QT) | +20° 35-45 |
KV - Impact energy (J) transverse, (+QT) | +20° 25-27 |
Nominal thickness (mm): | 0.3 - 3 |
A - Min. elongation Lo = 80 mm (%) (+A) | 16 |
A - Min. elongation at fracture (%) transverse, (+QT) | 10-12 |
Nominal thickness (mm): | to 16 | 16 - 40 | 40 - 100 | 100 - 160 | 160 - 250 |
A - Min. elongation Lo = 5,65 √ So (%) (+QT), round products | 11 | 12 | 14 | 15 | 15 |
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) | 45 | 50 | 55 | 55 | 60 |
Z - Reduction in cross section on fracture (%) (+AC) | 60 |
Brinell hardness (HBW): (+S) | 255 |
Brinell hardness (HBW): (+A) | 223 |
Vickers hardness ( HV): (+A) | 185 |
Vickers hardness ( HV): (+QT) | 315 - 465 |
Properties of steel 34CrMo4 (1.7220)
Weldability: Low weldability; this steel grade can be welded only with suitable precautions. Hardenability: Steel grade with medium carbon content showing a poor hardenability; sensitive to notching and to quenching cracks. |
Equivalent grades of steel 34CrMo4 (1.7220)
Warning! Only for reference
EU EN |
USA - |
Germany DIN,WNr |
Japan JIS |
France AFNOR |
England BS |
Italy UNI |
China GB |
Sweden SS |
Finland SFS |
Russia GOST |
Inter ISO |
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34CrMo4 |
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Contact Person: Mr. Gao Ben
Tel: +86-18068357371
Fax: 86-0510-88680060