EN 10277-3 Grade 11SMnPb37 – Cold‑Drawn High‑Performance Free‑Cutting Steel
Free cutting steel 11SMnPb37 is a very-high-performance free cutting steel of excellent machining properties. It is unsuitable for heat-treatment. Deteriorating ductility qualities due to increased S-content and higher cracking risk have to be considered. 11SMnPb37 shows compared to 11SMn37 better parameter. Application for bulk parts in car industry, in apparatus and equipment engineering. As a bright steel product it is used in the form of bars, bright, straight, in various conditions (see DIN EN 10277 : 1999-10).
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 20.0 °C | 7.85 g/cm³ |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Elastic modulus | 20.0 °C | 210 GPa | |
200.0 °C | 193 GPa | ||
300.0 °C | 185 GPa | ||
400.0 °C | 175 GPa | ||
Elongation | 20.0 °C | 6 - 9 % | |
Poisson's ratio | 23.0 °C | 0.29 [-] | Typical for Low Carbon Steel |
Shear modulus | 20.0 °C | 81 GPa | |
Tensile strength | 20.0 °C | 360 - 810 MPa | |
Yield strength Rp0.2 | 20.0 °C | 245 - 440 MPa | |
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | 100.0 °C | 1.1E-5 1/K | |
200.0 °C | 1.18E-5 1/K | ||
400.0 °C | 1.32E-5 1/K | ||
Max service temperature | 500 °C | Typical for Carbon Steel | |
Melting point | 1480 - 1526 °C | Typical for Low Carbon Steel | |
Specific heat capacity | 20.0 °C | 460 J/(kg·K) | |
100.0 °C | 480 J/(kg·K) | ||
200.0 °C | 520 J/(kg·K) | ||
400.0 °C | 610 J/(kg·K) | ||
Thermal conductivity | 20.0 °C | 54.4 W/(m·K) | |
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical resistivity | 20.0 °C | 1.1E-7 Ω·m |
Magnetic
| Property | Value | Comment |
|---|---|---|
Curie temperature | 770 °C | Typical for Low Carbon Steel |
Chemical properties
| Property | Value |
|---|---|
Carbon | 0.14 % |
Lead | 0.2 - 0.35 % |
Manganese | 1 - 1.5 % |
Phosphorus | 0.11 % |
Silicon | 0.05 % |
Sulfur | 0.34 - 0.4 % |
Metal
- EN 10277-3 Grade 46SPb20 Cold Drawn Steel – High Strength, Low Ductility, Pb‑Enhanced Machinability
- EN 10277-3 Grade 35SPb20 Cold-Drawn Steel – Premium Strength & Machinability
- EN 10277-3 Grade 38SMn28 Cold Drawn Steel – High Strength, Precision Manufacturing
- EN 10277-3 Grade 35S20 Cold Drawn Steel – High Strength & Ductility for Automotive & Machine Parts
- EN 10277-3 46S20 Cold-Drawn Steel – High Strength, Low Ductility for Automotive & Machinery Applications
- EN 10277-3 Grade 10SPb20 Cold-Drawn Steel – Uniform Properties & Enhanced Machinability
- EN 10277-3 Grade 11SMnPb30 Cold Drawn Steel – High Machinability & Low Cracking Sensitivity
- EN 10277-3 Grade 10S20 Cold Drawn Steel – Superior Machinability & Ductility for Case-Hardened Parts
- EN 10277-3 Grade 11SMn30 Cold Drawn Steel – Superior Performance for Automotive and Industrial Applications
- EN 10277-3 Grade 11SMn37 Cold Drawn Steel – Premium Quality for Industrial Applications