Supply 1.2703 round steel 40crni2si2mova round bar 45m5 steel plate for retail
7. Nickel (ni): nickel can improve the strength of steel while maintaining its plasticity and toughness. Nickel has high corrosion resistance to acid and alkali, rust prevention and heat resistance under high temperature. However, since nickel is a relatively low resource, other alloy elements should be used instead of nickel chromium steel as far as possible.
8. Molybdenum (mo): molybdenum can refine the grain of steel, improve the hardenability and thermal strength, and maintain sufficient strength and creep resistance at high temperature (creep refers to deformation caused by long-term stress under high temperature).
11. Tungsten (w): Tungsten is a noble alloy element with high melting point and high specific gravity. Tungsten and carbon form tungsten carbide with - hardness and wear resistance. Adding tungsten to tool steel can improve the red hardness and heat strength, and can be used as cutting tools and forging dies.
12. Niobium (nb): niobium can refine the grain size, reduce the overheating sensitivity and temper brittleness of steel, and improve the strength, but the plasticity and toughness have decreased.
2. Good corrosion resistance; 3. It is used for corrosion resistance and some can be used as heat-resistant materials.
Heat resistant steel 1. Low carbon high alloy steel; 2. Good heat resistance; 3. It is used for heat-resistant materials, and some can be used as anti-corrosion materials.
Low temperature steel 1. Low carbon alloy steel, according to the degree of low temperature resistance, alloy elements vary from high to low; 2. Good low temperature resistance;
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