301 Stainless Steel Welded Pipe

301 stainless steel welded pipe is a metastable austenitic stainless steel with complete austenitic structure under the condition of full solid solution. In stainless steel, 301 is the most easily cold deformation strengthening steel grade, through the cold deformation processing can make the strength of steel, hardness, and retain enough plastic and toughness, together with the steel under the condition of the atmosphere with good rust resistance, but the poor corrosion resistance, reducing medium in acid and alkali salt chemical medium corrosion resistance is poorer, therefore is not recommended for corrosion harsh environment. 301 is mainly used in cold processing state to bear high load, and hope to reduce the weight of equipment and equipment parts without rust. In addition, the steel in the impact of external force is easy to produce hardening can absorb more impact energy, equipment and personnel will provide a more reliable security.

Chemical composition %
C: 0.15 or less,
Si: 1.0 or less.
Mn: 2.0 or less.
Cr: 16.0 ~ 18.0,
Ni: 6.0 8.0,
S: 0.03 or less,
P: 0.045 or less

Heat treatment 

Heat treatment specification: solid solution of 1010 ~ 1150 ℃ cold fast.

Microstructure:301 stainless steel welded pipe is characterized by austenite type.

In the air or chemical corrosion medium can resist corrosion of a kind of high alloy steel, stainless steel is a beautiful surface and corrosion resistance is good, do not have to go through the plating color and other surface treatment, and play the inherent surface properties of stainless steel, used in a variety of steel, usually called stainless steel.Representative performance of the 13 chromium steel, 18-8 chromium nickel steel and other high alloy steel.L represents low carbon, for example, the carbon content of 304L is lower than 304.H and S stand for high temperature resistance. For example, 310S is better than 310, and 304H is better than 304.

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