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What is 321 and 321H stainless steel?
What is the elongation of 321 stainless steel?
What is the tensile strength of 321 stainless steel?
What is the difference between 321 and 321H?
AISI 321 stainless steel (SS321) is basically type 304 with the addition of titanium (Ti), which stabilizes carbides against sensitization to prevent intergranular precipitation of chromium carbide when the steel is heated to a temperature within the sensitization range (such as during welding). 321H is to obtain the best creep strength and ...
Jan 28, 2023 · One of the most common types is 321 and 321H stainless steel. But what’s the difference between them? In this article, we’ll explore the differences between these two types of stainless steel and which one may be best for you. Difference Between 321 and 321H Stainless Steel Composition
Chemical Composition of 321 and 321H Stainless Steel Plate. The difference between 321 and 321H grades lies in the amount of carbon contained within each metal. 321 has at most 0.08% while 321H contains between 0.04% and 0.10% carbon. They both contain at most 2.0% manganese, 0.75% silicon and 0.045% phosphorous.
Alloy 321 (UNS S32100) is a titanium stabilized austenitic stainless steel with good general corrosion resistance. It has excellent resistance to intergranular corrosion after exposure to temperatures in the chromium carbide precipitation range of 800 –1500°F (427– 816°C).
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Stainless Steel 321H has a higher carbon content than 321. 321H contains between 0.04-0.10% carbon, whereas 321 has a maximum of 0.08% carbon. The higher carbon content in 321H increases its strength and high-temperature abilities but reduces its weldability compared to 321.
General Properties. Alloy 321 (UNS S32100) is a titanium stabilized austenitic stainless steel with good general corrosion resistance. It has excellent resistance to intergranular corrosion after exposure to temperatures in the chromium carbide precipitation range of 800 – 1500°F (427 – 816°C).
Jan 27, 2020 · Stainless Steel 321H is the higher carbon (0.04–0.10) version of SS 321. It was produced to improve creep resistance and for higher strength at temperatures above 1000 degrees F (537 degrees C). In most occurrences, the carbon content of the plate enables dual certification. SS 321 cannot be hardened by heat treatment, just by cold working.