Description
Chemical Composition (Percentage by Weight):
| Carbon (C) | Manganese (Mn) | Silicon (Si) | Phosphorus (P) | Sulfur (S) | Chromium (Cr) | Copper (Cu) |
|---|---|---|---|---|---|---|
| Typically in the range of 0.10% to 0.25% | Varies depending on the grade, usually in the range of 0.45% to 1.00% | Typically below 0.50% | Generally limited to a maximum of 0.040% | Typically restricted to a maximum of 0.040% | Some grades may contain small amounts of chromium for improved corrosion resistance. | Some grades may contain copper for enhanced weather resistance. |
Mechanical Properties:
| Tensile Strength (at room temperature) | Yield Strength (at room temperature) | Elongation (in 50mm | Charpy V-Notch Impact Test |
|---|---|---|---|
| Varies depending on the grade, usually in the range of 410 MPa to 650 MPa. | Varies depending on the grade, generally ranging from 240 MPa to 450 MPa. | Typically around 20% or more. | Minimum values may be specified to ensure adequate toughness, typically ranging from 27 J (20 ft-lbf) to 47 J (35 ft-lbf) or more, depending on the grade. |
Typical Properties:
| Density | Thermal Expansion | Electrical Conductivity |
|---|---|---|
| 7.85 g/cm³ (0.284 lb/in³) | Typically around 12.5 x 10^(-6)/°C (7 x 10^(-6)/°F) | Varies depending on the composition. |
IRSM 44 and other railway grades are designed to meet the specific requirements of the railway industry, including resistance to wear, fatigue, and environmental factors. These grades are used for various railway components, such as rails, wheels, axles, and other structural elements.
Reviews
There are no reviews yet.