SEW 092 QStE340TM Introduce
SEW 092 QStE340TM steel has a wide range of applications in the engineering and construction industries. Common applications include bridges, ships, heavy equipment, buildings, and machinery frames. This versatile steel is also highly sought after in the automotive industry for its extreme plasticity and resistance to corrosion. Due to its exceptional tensile strength, SEW 092 QStE340TM steel is also used in the manufacture of high-pressure storage vessels and pipes. This steel can also withstand harsh weather conditions, making it an ideal choice for outdoor structures like pavements and petrol stations.
Smelting temperature:1513°C - 1444°C
Application:High yield strength steel hot rolled sheet for cold forming
SEW 092 QStE340TM Material Chemical Composition
The chemical composition of the SEW 092 QStE340TM steel are as follows:
| Element | Min | Max |
|---|---|---|
| Titanium (Ti) | - | 0.2200 |
| Silicon (Si) | - | 0.5000 |
| Sulfur (S) | - | 0.0300 |
| PhOsphorus (P) | - | 0.0300 |
| (Nb+Ti+V) | - | 0.2200 |
| Niobium (Nb) | - | 0.0900 |
| Manganese (Mn) | - | 1.3000 |
| Carbon (C) | - | 0.1200 |
| Aluminum (Al) | 0.0150 | - |
SEW 092 QStE340TM Material Mechanical Properties
The mechanical properties of the SEW 092 QStE340TM steel are as follows:
| YieldRp0.2 | 877 (≥)(MPa) |
| TeileRm | 127 (≥)(MPa) |
| ImpactKV/Ku | 14(J) |
| ElongationA | 43% |
| Reduction in cross section on fractureZ | 21% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 122 |
SEW 092 QStE340TM Material Thermal Properties
The thermal performance parameters of the SEW 092 QStE340TM steel are as follows:
| Temperature (°C) | 21 | 418 | 258 |
| Modulus of elasticity (GPa) | - | 371 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 44 |
| Thermal conductivity (W/m·°C) | - | 32.3 | 12.2 |
| Specific thermal capacity (J/kg·°C) | - | 434 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.24 | - | - |
| Deity (kg/dm³) | - | - | 313 |
| Poisson’s coefficient, ν | - | - | 412 |
SEW 092 QStE340TM Material Machining Technology
SEW 092 QStE340TM steel is a great option for machining, there are still some challenges associated with the process. The alloy is very hard and can be difficult to machine into complex components. Additionally, due to its high hardness and strength, the risk of fractures and fracturing is much higher when machining this material than other less hard materials. Additionally, tool wear is higher when machining SEW 092 QStE340TM steel than other metals, making it more difficult and costly to machine this material.