Similar Grade:
DIN 1.7228, SCM5
Shape:
Round, Flat, Square.
Size Range:
| |
Diameter(mm) |
Thickness (mm) |
Width (mm) |
Length(mm) |
| Round |
20-480 |
- |
- |
2000-5800 |
| Square |
20-480 |
- |
- |
2000-5800 |
| flat |
- |
20-50 |
80-600 |
2000-5800 |
Steel-making Condition:
EF, EF/EAF+LF+VD, EF/EAF+ESR
Delivery Condition:
Annealed , Quenched + Tempered
Surface Condition:
Black, Grinded, Peeled, Rough turned, Polished
Features:
1.Competitive price
2.Immediate delivery
3.Premium quality
4.Reliable service
5.MOQ: 1 Ton
| Packing details |
In seaworthy packing, as your requirement. |
| Delivery details |
within 30-50 days |
Chemical Composition:
C |
Mn |
P |
S |
Si |
Cr |
Cu |
| 0.43-0.48 |
0.75-1.00 |
<= 0.035 |
<=0.040 |
0.15-0.35 |
0.80-1.10 |
0.15-0.25 |
Mechanical Properties
The mechanical properties of AISI 4145 alloy steel are displayed in the following
Properties
Poisson's ratio 0.27-0.30
Hardness, Brinell 208
Hardness, Knoop (converted from Brinell hardness) 230
Hardness, Rockwell B (converted from Brinell hardness) 94
Hardness, Rockwell C (converted from Brinell hardness, value below normal HRC range, for comparison purposes only) 15
Hardness, Vickers (converted from Brinell hardness) 218
Machinability (annealed and cold drawn, based on 100 machinability for AISI 1212 steel) 60
Introduction:
Alloy 4145 is a Chrome / Moly alloy displaying high hardenability and good hardness penetration qualities. When heat treated, Alloy 4145 can be machined relatively effectively despite this well-known hardening grade maintaining its properties at very high temperatures! What makes Alloy 4145 harder than Alloy 4140 is the increased use of carbon applied to Alloy 4145.
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