SAE J1268 5147H Introduce
SAE J1268 5147H steel is a versatile type of steel that is ideal for a variety of construction projects due to its strong chemical composition and superior performance. Its low-carbon content serves as the base on which the other alloying elements, such as manganese, chromium, and silicon, can build upon in order to improve its strength and corrosion resistance. Lastly, SAE J1268 5147H steel contains up to 0.45% manganese, which helps to increase the steel's hardness as well as its wear and tear resistance. Manganese is an essential element for steel, as it helps to increase the strength of the alloy and prevents it from developing cracks or grooves on its surface. Manganese also promotes a good surface finish and can help protect the steel from rust and other forms of corrosion. As a result, SAE J1268 5147H steel is an excellent choice for projects that need reliable materials that can withstand harsh environmental conditions.
Smelting temperature:1499°C - 1255°C
Application:Hardenability bands for carbon and alloy H steels
SAE J1268 5147H Material Chemical Composition
The chemical composition of the SAE J1268 5147H steel are as follows:
| Element | Min | Max |
|---|---|---|
| Silicon (Si) | 0.1500 | 0.3500 |
| Sulfur (S) | - | 0.0400 |
| PhOsphorus (P) | - | 0.0300 |
| Nickel (Ni) | - | 0.2500 |
| Molybdenum (Mo) | - | 0.0600 |
| Manganese (Mn) | 0.6000 | 1.0500 |
| Copper (Cu) | - | 0.3500 |
| Chromium (Cr) | 0.8000 | 1.2500 |
| Carbon (C) | 0.4500 | 0.5200 |
SAE J1268 5147H Material Mechanical Properties
The mechanical properties of the SAE J1268 5147H steel are as follows:
| YieldRp0.2 | ≤ 767 (MPa) |
| TeileRm | ≤ 519 (MPa) |
| ImpactKV/Ku | 44(J) |
| ElongationA | 14% |
| Reduction in cross section on fractureZ | 34% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 444 |
SAE J1268 5147H Material Thermal Properties
The thermal performance parameters of the SAE J1268 5147H steel are as follows:
| Temperature (°C) | 11 | 661 | 277 |
| Modulus of elasticity (GPa) | - | 672 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 32 |
| Thermal conductivity (W/m·°C) | - | 31.3 | 43.2 |
| Specific thermal capacity (J/kg·°C) | - | 311 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.44 | - | - |
| Deity (kg/dm³) | - | - | 344 |
| Poisson’s coefficient, ν | - | - | 132 |