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Understanding About Carbon Steel Pipe
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Understanding About Carbon Steel Pipe

Update:2017-07-25   View(s):1495   Keywords :carbon steel pipe,seamless steel pipe,welded pipe
Carbon steel pipe is steel in which the main interstitial alloying constituent is carbon in the range of 0.12–2.0%. The American Iron and Steel Institute (AISI) definition says:Steel is considered to be carbon steel when no minimum content is specified or required for chromium, cobalt, molybdenum, nickel, niobium, titanium, tungsten,vanadium or zirconium, or any other element to be added to obtain a desired alloying effect;when the specified minimum for copper does not exceed 0.40 percent; or when the maximum content specified for any of the following elements does not exceed the percentages noted: manganese 1.65, silicon 0.6, copper 0.6.
Effect of Carbon:
Generally, carbon is the most important commercial steel alloy. Increasing carbon content increases hardness and strength and improves hardenability. But carbon also increases brittleness and reduces weldability because of its tendency to form martensite. This means carbon content can be both a blessing and a curse when it comes to commercial steel.
Effect of Manganese:
1.The effectiveness of Manganese in increasing mechanical properties depends on and is proportional to the carbon content of the steel.
2. Manganese also plays an important role in decreasing the critical cooling rate during hardening. This means that manganese helps to increase the steel’s hardenability. It’s effect on hardenability is greater than that of any of the other commonly used alloying elements.
3. Manganese is also an active deoxidizer, and is less likely to segregate than other elements.
4. Manganese improves machinability, by combining with sulfur to form an soft inclusion in the steel that promotes a steady built up edge and a place for the chip to break.

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