1.[ Steel 34CrMo4 1.7220 4135 SCM435H pipe& tube]
Introduction: Standard: | EN 10083-3: 2006 Steels for quenching and tempering. Technical delivery conditions for alloy steels | EN 10132-3: 2000 Cold rolled narrow steel strip for heat treatment. Technical delivery conditions. Steels for quenching and tempering | EN 10263-4: 2001 Steel rod, bars and wire for cold heading and cold extrusion. Technical delivery conditions for steels for quenching and tempering | EN 10250-3: 2000 Open steel die forgings for general engineering purposes. Alloy special steels | EN 10297-1: 2003 Seamless circular steel tubes for mechanical and general engineering purposes. Non-alloy and alloy steel tubes. Technical delivery conditions |
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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 |
34CrMo4 | | | | | | | | | | | |
2.[Steel 34CrMo4 1.7220 4135 SCM435H pipe& tube]
Surface:
mill finish (not polished)
brushed
mirror
embossed
oxidized
cold-rolled
hot-rolled
3.[Steel 34CrMo4 1.7220 4135 SCM435H pipe& tube ]
Chemistry:
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 |
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Post free buying requirement of steel 34CrMo4 (1.7220)
Mechanical properties of steel 34CrMo4 (1.7220)Nominal diameter (mm): | to 16 | 16 - 40 | 40 - 100 | 100 - 160 | 160 - 250 |
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Rm - Tensile strength (MPa) (+QT) | 1000-1200 | 900-1100 | 800-950 | 750-900 | 700-850 |
Nominal thickness (mm): | 0.3 - 3 |
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Rm - Tensile strength (MPa) (+A) | 600 |
Nominal thickness (mm): | to 8 | 8 - 20 | 20 - 50 | 50 - 80 |
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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 |
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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 |
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Rp0.2 0.2% proof strength (MPa) (+A) | 460 |
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KV - Impact energy (J) longitud., (+QT) | +20° 35-45 |
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KV - Impact energy (J) transverse, (+QT) | +20° 25-27 |
Nominal thickness (mm): | 0.3 - 3 |
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A - Min. elongation Lo = 80 mm (%) (+A) | 16 |
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A - Min. elongation at fracture (%) transverse, (+QT) | 10-12 |
Nominal thickness (mm): | to 16 | 16 - 40 | 40 - 100 | 100 - 160 | 160 - 250 |
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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 |
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Z - Reduction in cross section on fracture (%) (+QT) | 45 | 50 | 55 | 55 | 60 |
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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. |
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