What is the yield strength of iron?
What is the yield strength of iron?
Mechanical Properties
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength at break | 540 MPa | 78300 psi |
| Yield strength | 50 MPa | 7250 psi |
| Poisson’s ratio | 0.291 | 0.291 |
| Modulus of elasticity | 200 GPa | 29000 ksi |
How do you obtain the yield point stress in case of cast iron?
Cast Iron do not yield, for such materials which do not have well defined yield point, yield stress is determined by the offset method. This method consist of drawing a line parallel to the initial tangent of a stress strain curve; this line starts at a prescribed offset strain, usually 0.2 %(e=0.002).
What is the modulus of elasticity of cast iron?
Cast Iron
| Material | Modulus of elasticity | |
|---|---|---|
| GPa | 106 psi | |
| Cast irons | ||
| Gray iron, grade G1800: | 66-97 | 9.6-14 |
| Gray iron, grade G4000: | 110-138 | 16-20 |
What is the allowable stress for cast iron?
For cast iron, the basic allowable stress is the lower of one-tenth of the specified minimum tensile strength (at room temperature) and one-tenth of the “minimum” strength at temperature, also based on the trend of average material strength with temperature. For ductile iron, a factor of one-fifth is used rather than a factor of one-tenth.
What is the yield strength of cast iron?
Cast iron has an ultimate strength of 20,000 psi. The ultimate tensile strength of ductile iron is above 60,000 psi, the yield strength is 42,000 psi. During the testing ductile iron will elongate by about 10 per cent before breaking. This test result sequence is frequently written as 60 – 42 – 10.
What is yield stress?
Yield stress refers to the minimum stress at which a material will deform without significant increase in load. In other words, the minimum stress required to make a material flow is the yield stress, and it is a measure of the strength of the material structure.
What is the tensile strength of iron?
Tensile strength was determined by casting bars and testing in accordance with ASTM-A 48 specifications, as is well known in the art. The tensile strength of the inventive gray iron was determined to be approximately 50,000 psi. In contrast, conventional gray iron has a tensile strength of approximately 30,000 psi.