The influence of performance of steel elements

The quality and performance of the steel is determined according to the needs, different needs, want to have a different element content.

(1) carbon; The higher the carbon content, just of the hardness is higher, but its plasticity and toughness is poorer.

(2) sulfur; Steel is the harmful sundry, sulfur high steel in high temperature pressure processing, easy to brittle broken, usually called hot brittle.

(3) p;Can make steel plasticity and toughness dropped significantly, especially in the low temperature of more serious, this phenomenon is called cold brittle. In high-quality steel, sulfur and phosphorus to strictly control. But on the other aspect see, in low carbon steel contains high sulfur and phosphorus, can make its cutting brittle, to improve the steel can be cutting sex is favorable.

(4) manganese; Can improve the strength of steel, can eliminate weak and eliminate the bad influence of sulfur, and can improve its quench-hardening ability of steel, containing manganese content high high alloy steel (high manganese steel) has good abrasion resistance and other properties.

(5) silicon; It can improve the hardness of the steel, but plasticity and toughness drop, electrician steel contains with a certain amount of silicon, can improve the soft magnetic properties.

(6) tungsten; Can improve the rigidity and red steel hot strong sex, and can improve the wear resistance of steel.

(7) chromium; Can improve its quench-hardening ability of steel and wear resistance, can improve steel the corrosion resistance and antioxidant effect.

(8) vanadium; Can the grain refinement steel organization, improving steel strength, toughness and wear resistance. When it in the high temperature melt into the austenitic, can increase steel its quench-hardening ability; Conversely, when it in the carbide existence, can reduce it its quench-hardening ability.

(9) molybdenum; Can be significantly improved its quench-hardening ability and hot steel strong sex, prevent brittleness, improve the residual magnetism and coercivity.

(10) titanium; Can the grain refinement steel group, so as to improve the strength of steel and toughness. In stainless steel, titanium can eliminate or mitigate intergranular corrosion of steel.
(11) nickel; Can improve steel strength and toughness, improve its quench-hardening ability. Content high, can significantly change the steel and alloy some of the physical performance, improve steel corrosion resistance.

(12) b; and When the steel contains trace amounts of (0.001 0.005%) boron, steel double its quench-hardening ability the raise.

(13) aluminum; Can the grain refinement steel organization, resistance YiDi carbon steel in time. Improving steel in low temperature toughness, can still improve steel oxidation resistance, improving steel abrasion resistance and fatigue strength, etc.

(14) copper; It is to improve the prominent role of ordinary of low alloy steel atmospheric corrosion resistance performance, especially when used together and phosphorus is more obvious.