321/347 stainless steel seamless/welded polished tube/pipe

Ti is added in the 321 stainless steel as a stable element, so it is better than 316 stainless steel under high temperature. 321 stainless steel owns good wear resistance and corrosion resistance in both organic acids and inorganic acids at different temperature and concentration, especially in oxidizing medium. It is often used to manufacture the line and conveying pipeline of the acid container and wear resistant equipment.

Application area:

Chemical transporting vehicle,coal industry, oil industry,construction industry and boiler pressure vessel.

Chemical composition(WT%)

(C) :≤0.08

(Si) :≤1.00

(Mn) :≤2.00

(Cr) :17.0 to 19.0

(P) :≤0.035

(S) :≤0.030

(Ni) : 9.0 to 12.0

(Ti): ≥5×C%

physical property

tensile strength:≥520MPa

Yield strength:≥205MPa

Elongation:more than 40%

The following table is the size of the pipe. For any other detail information, please feel free to contact us.

Usually, it only takes 3 working days for us to make delivery if the products are ready in stock.

Of course, unusual size can also be customized according your request.

FAQ: How much the Ti composition should be in 321 stainless steel?

According to ASTM A182-2008, the Ti composition should be more than 4 times than the carbon composition but can not exceed 0.7%.

Generally, the carbon composition in 321 stainless steel is less than 0.08%.

321 stainless steel tube

321 Stainless steel tube in stock

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