1.[ Steel 25crMo4 1.7218 SAE4130 SCM430 Plate& Coil& Sheet]
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 10216-2: 2014 Seamless steel tubes for pressure purposes. Technical delivery conditions. Non-alloy and alloy steel tubes with specified elevated temperature properties |
| EN 10305-1: 2010 Steel tubes for precision applications. Seamless cold drawn tubes. Technical delivery conditions |
| EN 10269: 1999 Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties |
| 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 25CrMo4 (1.7218)
Warning! Only for reference
EU
EN |
USA
- |
Germany
DIN,WNr |
Japan
JIS |
France
AFNOR |
England
BS |
Italy
UNI |
China
GB |
Sweden
SS |
Czechia
CSN |
Finland
SFS |
Russia
GOST |
Inter
ISO |
| 25CrMo4 |
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2.[Steel 25crMo4 1.7218 SAE4130 SCM430 Plate& Coil& Sheet]
Surface:
mill finish (not polished)
brushed
mirror
embossed
oxidized
cold-rolled
hot-rolled
3.[Steel 25crMo4 1.7218 SAE4130 SCM430 Plate& Coil& Sheet]
Chemistry:
Chemical composition % of steel 25CrMo4 (1.7218): EN 10083-3-2006
| C |
Si |
Mn |
P |
S |
Cr |
Mo |
| 0.22 - 0.29 |
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 25CrMo4 (1.7218)
| Nominal diameter (mm): |
to 16 |
16 - 40 |
40 - 100 |
100 - 160 |
160 - 330 |
|
| Rm - Tensile strength (MPa) (+QT) |
900-1100 |
800-950 |
700-850 |
650-800 |
600 |
| Nominal thickness (mm): |
0.3 - 3 |
|
| Rm - Tensile strength (MPa) (+A) |
580 |
| Nominal thickness (mm): |
0.3 - 3 |
|
| Rm - Tensile strength (MPa) (+QT) |
990-1400 |
|
| Rm - Tensile strength (MPa) (+AC) |
580 |
|
| Rm - Tensile strength (MPa) (+C) |
720 |
|
| Rm - Tensile strength (MPa) (+LC) |
670 |
| Nominal thickness (mm): |
to 60 |
|
| ReH - Minimum yield strength (MPa) (+QT) |
345-355 |
| Nominal diameter(mm): or for flat products thickness: to 8; 8-20; 20-60; 60-100; |
to 16 |
16 - 40 |
40 - 100 |
100 - 160 |
160 - 330 |
|
Re - Upper yield strength or
Rp0.2 - 0.2% proof strength (MPa) (+QT) |
700 |
600 |
450 |
400 |
380 |
| Nominal thickness(mm): |
0.3 - 3 |
|
| Rp0.2 0.2% proof strength (MPa) (+A) |
440 |
|
| KV - Impact energy (J) longitud., (+QT) |
+20°
45-50 |
|
| KV - Impact energy (J) transverse, (+QT) |
+20°
27-32 |
| Nominal thickness (mm): |
0.3 - 3 |
|
| A - Min. elongation Lo = 80 mm (%) (+A) |
19 |
|
| A - Min. elongation at fracture (%) longitud., (+QT) |
18 |
|
| A - Min. elongation at fracture (%) transverse, (+QT) |
15 |
|
| A - Min. elongation at fracture (%) (+C) |
4 |
|
| A - Min. elongation at fracture (%) (+LC) |
6 |
| Nominal diameter (mm): or for flat products thickness: to 8; 8-20; 20-60; 60-100; |
to 16 |
16 - 40 |
40 - 100 |
100 - 160 |
|
| A - Min. elongation Lo = 5,65 √ So (%) (+QT) |
12 |
14 |
15 |
16 |
| Nominal diameter (mm): or for flat products thickness: to 8; 8-20; 20-60; 60-100; |
to 16 |
16 - 40 |
40 - 100 |
100 - 160 |
|
| Z - Reduction in cross section on fracture (%) (+QT) |
50 |
55 |
60 |
60 |
|
| Z - Reduction in cross section on fracture (%) (+AC) |
59 |
| Brinell hardness (HBW): (+S) |
255 |
| Brinell hardness (HBW): (+A) |
212 |
| Vickers hardness ( HV): (+A) |
175 |
| Vickers hardness ( HV): (+QT) |
305 - 435 |
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