1045 Steel Grade Equivalent Chart
| Country |
USA |
Germany/UK/France |
JAPAN |
ISO |
| Standard |
ASTM A29/A29M-05 |
EN 10083/2-2006 |
JIS G4051-2009 |
ISO 683/18-1996 |
| Grades |
1045 |
C45(1.0503) |
S45C |
C45E4 |
1045 Steel Chemical Composition
| Stand |
C (%) |
Mn(%) |
P(%) |
S (%) |
Si (%) |
Cr (%) |
Mo(%) |
Ni(%) |
| ASTM A29/A29M-05 |
0.43-0.50 |
0.60-0.90 |
Max 0.040 |
Max 0.050 |
Max 0.10 |
– |
– |
– |
| EN 10083/2-2006 |
0.42-0.50 |
0.50-0.80 |
Max 0.045 |
Max 0.045 |
Max 0.40 |
Max 0.40 |
Max 0.10 |
Max 0.40 |
| JIS G4051-2009 |
0.42-0.48 |
0.60-0.90 |
Max 0.030 |
Max 0.035 |
0.15-0.35 |
– |
– |
≤0.20 |
| ISO 683/18-1996 |
0.42-0.50 |
0.50-0.80 |
≤0.035 |
≤0.035 |
0.10-0.40 |
– |
– |
– |
1045 Steel Physical Properties
| Properties |
Metric |
Imperial |
| Density |
7.87 g/cc |
0.284 lb/in³ |
C45 Steel Mechanical Properties
| Mechanical Properties |
Metric |
Imperial |
| Hardness, Brinell |
163 |
163 |
| Hardness, Knoop (Converted from Brinell hardness) |
184 |
184 |
| Hardness, Rockwell B (Converted from Brinell hardness) |
84 |
84 |
| Hardness, Vickers (Converted from Brinell hardness) |
170 |
170 |
| Tensile Strength, Ultimate |
565 MPa |
81900 psi |
| Tensile Strength, Yield |
310 MPa |
45000 psi |
| Elongation at Break (in 50 mm) |
16.0 % |
16.0 % |
| Reduction of Area |
40.0 % |
40.0 % |
| Modulus of Elasticity (Typical for steel) |
200 GPa |
29000 ksi |
| Bulk Modulus (Typical for steel) |
140 GPa |
20300 ksi |
| Poissons Ratio (Typical For Steel) |
0.290 |
0.290 |
| Shear Modulus (Typical for steel) |
80 GPa |
11600 ksi |
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