GB 1591 09MnNb Introduce

The hardness of a material is a measure of its resistance to indentation, wear, and corrosion. GB 1591 09MnNb steel is known for its hardness, making it wear-resistant and corrosion-resistant. This makes it suitable for outdoor use, as it can withstand the elements without showing signs of wear. Additionally, its hardness makes it resistant to scratches and dents, which can help protect it from damage over time.

Smelting temperature:1411°C - 1898°C

Application:Low alloy high strength structural steel

GB 1591 09MnNb Material Mechanical Properties

The mechanical properties of the GB 1591 09MnNb steel are as follows:

YieldRp0.2 ≤ 512 (MPa)
TeileRm≤ 497 (MPa)
ImpactKV/Ku14(J)
ElongationA24%
Reduction in cross section on fractureZ31%
As-Heat-Treated ConditionSolution and Aging, Annealing, Ausaging, Q+T,etc
Brinell hardness (HBW)221

GB 1591 09MnNb Material Thermal Properties

The thermal performance parameters of the GB 1591 09MnNb steel are as follows:

Temperature (°C)44837788
Modulus of elasticity (GPa)-874-
Mean coefficient of thermal expaion ×10-6/(°C)--11
Thermal conductivity (W/m·°C)-14.313.2
Specific thermal capacity (J/kg·°C)-213-
Specific electrical resistivity (Ω mm²/m)0.43--
Deity (kg/dm³)--324
Poisson’s coefficient, ν--243

GB 1591 09MnNb Material Machining Technology

Machining GB 1591 09MnNb steel can be a challenging but rewarding process due to its excellent strength, weldability, and machinability. The right tools, techniques, and cutting conditions must be used in order to obtain acceptable results, and common problems such as poor surface finish and tool wear should be kept in mind. Additionally, there are several benefits to using this type of steel, as well as alternative materials to consider when machining is not possible. By understanding the process and taking the right measures, it is possible to obtain the desired results with this versatile material.