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Elements (Max.) C Mn P S Si Cr Ni .25 2.00 .045 .03 1.50 24/26 19/22
Type 310, With high chromium and nickel content, has the greatest heat resisting properties of the more commonly used stainless steels. It has high creep strength and mechanical properties and does not become brittle at elevated temperatures. It is non-magnetic in the annealed condition and not hardenable by heat treatment. Applications: Used primarily where high heat resisting properties are required, such as for the more critical parts in oil refining equipment, oil burners, furnace's, heat exchangers, etc. In the aircraft industry, Type 310 is used for parts requiring welding during fabrication, or oxidation resistance up to about 2O00 Deg. F. Useful at higher temperatures only when stresses are low.
Corrosion Resistance: Type 310 has excellent corrosion resistance, which is at a maximum in the annealed condition. Its resistance to specific chemical media may be compared to that of Type 304.
Resistance To Scaling: Excellent scale resistance at temperatures up to 2O00 Deg. F in continuous service. In comparison with the other chromium-nickel grades this type has a slightly lower coefficient of expansion, which results in less tendency to warp.
Weldability: Easily welded by all the commercial processes except forge or hammer welding. Annealing after welding is recommended in order to obtain maximum corrosion resistance.
Forming: This grade has good drawing and stamping properties.
Annealing: Annealing range is between 1900 and 2100 Deg. F Cool rapidly. Water should be used for heavier sections, air for lighter sections. The stress relieving range is between 400 and 750 Deg. F