GB 1591 14MnNb

GB 1591 14MnNb Steel,

GB 1591 14MnNb

GB 1591 14MnNb steel is a popular choice for construction and engineering projects, thanks to its high strength, ductility, hardness, and thermal properties. Its shape and ductility allow it to be formed into various shapes, while its strength helps it to bear heavy loads. Its elasticity helps it to maintain its shape over time, while its hardness makes it resistant to wear and corrosion. Finally, its thermal properties help it to maintain its strength in both hot and cold environments.

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GB 1591 14MnNb Introduce

GB 1591 14MnNb, or the Chinese Standard of hot-rolled steel, is a widely used material for construction and engineering purposes. With its high strength, hardness, and ductility, GB 1591 14MnNb steel is used in a variety of structures, from buildings to bridges. As such, it's important to understand the mechanical properties of this steel in order to create durable and reliable structures.

Smelting temperature:1766°C - 1628°C

Application:Low alloy high strength structural steel

GB 1591 14MnNb Material Mechanical Properties

The mechanical properties of the GB 1591 14MnNb steel are as follows:

YieldRp0.2 ≤ 826 (MPa)
TeileRm≤ 847 (MPa)
ImpactKV/Ku21(J)
ElongationA12%
Reduction in cross section on fractureZ34%
As-Heat-Treated ConditionSolution and Aging, Annealing, Ausaging, Q+T,etc
Brinell hardness (HBW)444

GB 1591 14MnNb Material Thermal Properties

The thermal performance parameters of the GB 1591 14MnNb steel are as follows:

Temperature (°C)23757419
Modulus of elasticity (GPa)-419-
Mean coefficient of thermal expaion ×10-6/(°C)--22
Thermal conductivity (W/m·°C)-31.343.2
Specific thermal capacity (J/kg·°C)-423-
Specific electrical resistivity (Ω mm²/m)0.13--
Deity (kg/dm³)--224
Poisson’s coefficient, ν--211

GB 1591 14MnNb Material Machining Technology

GB 1591 14MnNb is a high-quality boron steel that is used for a wide range of applications requiring strength and weldability. It is a low-carbon steel alloy with a high content of boron, an element that is added to the alloy to improve the mechanical properties. The most common grade of GB 1591 14MnNb steel is 50B, which is widely used for automotive structural parts, agricultural and mining machinery parts, construction machinery parts, and other components requiring strength and weldability. It is also used to manufacture machine tool components, and as a result, is frequently encountered in machining operations.