United States · SAE
440C
SAE J 467:1968 — SAE J 467
Mechanical properties
value range by conditionChemical composition
| Element | min | max | Similar | Remarks |
|---|---|---|---|---|
| C | 1.1 | |||
| Cr | 17.5 | |||
| Mn | 0.5 | |||
| Mo | 0.5 | |||
| Si | 0.4 |
Mechanical properties
| Heat treatment / condition | Yield strength | Tensile strength | Elongation | Reduction of area | Impact energy | Hardness |
|---|---|---|---|---|---|---|
| bars, castings, forgings, oil quenched | 1896 | 1965 | 2 | 10 | ||
| bars, HB, forgings, oil quenched | Casting 580 |
Physical properties
20.0
| Elastic modulus | Mean thermal expansion | Thermal conductivity | Specific heat | Resistivity | Density | Poisson's ratio |
|---|---|---|---|---|---|---|
| 7.67 |
High/low temperature
| Condition | Temperature ℃ | max |
|---|---|---|
| bars | castings | 538 |
Fatigue
1. Bar; annealed; Bending; T: 20°C; Rotating beam; direction: L
| Item | Detail |
|---|---|
| Product | bars; annealed |
| Experiment | Bending; T: 20°C |
| Specimen | Rotating beam; Direction: L |
| Property | Value |
|---|---|
| Elastic modulus (GPa) | 200.0 |
| Yield strength (MPa) | 448.0 |
| Tensile strength (MPa) | 758.0 |
| Elongation (%) | 14.0 |
| Reduction of area (%) | 25.0 |
| Hardness (HRB) | 97.0 |
| No. | Specimen | Cycles |
|---|---|---|
| 1 | Rotating beam; Direction: L | E6 |
Heat treatment
| Type | 1 |
|---|---|
| Heat-treatment curve | Hardness-Tempering |
Similar grades
| Grade | Region | System |
|---|---|---|
| 1.4125 |  Italy | UNI |
| 1.4125 |  Hungary | MSZ |
| X 105 CrMo 17 | Hungary | MSZ |
| 440C | Global | Enterprise standard |
| 440C | United States | AMS |
| X 105 CrMo 17 | Italy | UNI |
| 1.4125 |  European Union | EN |
| X 105 CrMo 17 | European Union | EN |