SEW 092 QStE420N Introduce

SEW 092 QStE420N is a hot-rolled steel product which is commonly used to form frames, framework and other structural components. This steel has a higher strength and toughness than other types of steel, making it ideal for many types of construction projects. It is also more resistant to corrosion than other steels, and offers excellent formability and weldability.

Smelting temperature:1286°C - 1714°C

Application:High yield strength steel hot rolled sheet for cold forming

SEW 092 QStE420N Material Chemical Composition

The chemical composition of the SEW 092 QStE420N steel are as follows:

ElementMinMax
Vanadium (V)-0.1000
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)-1.6000
Carbon (C)-0.2000
Aluminum (Al)0.0150-

SEW 092 QStE420N Material Mechanical Properties

The mechanical properties of the SEW 092 QStE420N steel are as follows:

YieldRp0.2643 (≥)(MPa)
TeileRm545 (≥)(MPa)
ImpactKV/Ku31(J)
ElongationA31%
Reduction in cross section on fractureZ21%
As-Heat-Treated ConditionSolution and Aging, Annealing, Ausaging, Q+T,etc
Brinell hardness (HBW)441

SEW 092 QStE420N Material Thermal Properties

The thermal performance parameters of the SEW 092 QStE420N steel are as follows:

Temperature (°C)14121622
Modulus of elasticity (GPa)-297-
Mean coefficient of thermal expaion ×10-6/(°C)--31
Thermal conductivity (W/m·°C)-12.321.2
Specific thermal capacity (J/kg·°C)-212-
Specific electrical resistivity (Ω mm²/m)0.11--
Deity (kg/dm³)--142
Poisson’s coefficient, ν--134

SEW 092 QStE420N Material Machining Technology

SEW 092 QStE420N steel is an alloy that is well-suited for machining, as it is strong and stable and can be used to create various components and parts. However, it can be difficult to machine, due to its high hardness and strength. To help reduce the risk of fractures and tool wear, it is important to use a good quality cutting tool with a sharp edge, use coolants during the machining process, maintain a slow and steady speed and opt for softer materials for backing plates. With the right tools and techniques, SEW 092 QStE420N steel can be machined with precision and accuracy to produce components and parts for a range of applications.