AISI 1055 Steel — Specifications & Listings
SAE/AISI — High-medium carbon steel, spring and tool applications
Grade Details
| Grade | AISI 1055 |
| Standard | SAE/AISI |
| Description | High-medium carbon steel, spring and tool applications |
| Applications | Springs, hand tools, high strength wire |
Equivalent / Similar Grades
| Grade |
Standard |
Region |
|
C55
|
DIN |
Germany |
|
EN9
|
BS970 |
UK |
|
S55C
|
JIS |
Japan |
Chemical Composition (%)
| C |
Mn |
S |
P |
| 0.50–0.60 |
0.60–0.90 |
≤0.050 |
≤0.040 |
Mechanical Properties
| Tensile Strength |
700–850 MPa |
| Yield Strength |
≥490 MPa |
| Elongation |
≥10% |
| Hardness |
197–241 HB |
Typical Available Sizes
| Round Bar |
10mm–150mm dia |
| Wire Rod Coil |
5.5mm–25mm dia |
| Flat Bar |
16×5mm–150×30mm |
Sizes are indicative. Contact seller for exact availability.
Active AISI 1055 Listings on M-EX