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Stainless steel, also known as inox, corrosion-resistant steel (CRES) and rustless steel, is an alloy of iron that is resistant to rusting and corrosion. It contains iron with chromium and other elements such as molybdenum , carbon , nickel and nitrogen depending on its specific use and cost.
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- Austenitic Stainless Steel
- Aisi 321 Stainless Steel (Ss321), 321H, Tp321
- Grade 321 Stainless Steel Datasheet
- Aisi 321 Stainless Steel Properties
- Heat Treatment
- Weldability
- Applications
- Aisi 321 Stainless Steel Equivalent
AISI 321 stainless steel (SS321) is basically type 304with 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 creep ru...
The following tables and lists give grade 321 stainless steel datasheet and specification including chemical composition, physical properties and mechanical properties, machinability, heat treatment, welding, etc.
The tables below list AISI 321 stainless steel properties, including physical and mechanical properties.
Recommended annealing temperature for TP321 and 321 wrought stainless steel: 1040 °C (1900 °F); Minimum 1095 °C (2000 °F) for cold-worked 321H and 1050 °C (1095 °F) for hot-finished 321HStress-relieving treatmentsTypical forging temperature: 925-1260 °C (1700-2300 °F).SS321 and TP321 has excellent weldability, no preheating is required. The filling material needs to have similar composition but higher alloy content. Liquation cracking in heat affected zone: low energy input. Fine grain size. Ferrite ≥ 5%. Recommended filler metals are SS 321, 347, and 348. Electrode is E347 or E308L [service temperature < 370 °C...
Type 321, 321H and TP321 can be used in places where solution treatment after welding is not possible, such as steam lines and superheater pipes and exhaust systems in reciprocating engines and gas turbines with temperatures ranging from 425 to 870 °C (800 to 1600 °F). And fuel injection lines and hydraulic systems for aircraft and aerospace vehicl...
AISI TP321, 321H and 321 stainless steel equivalent to European EN (German DIN EN, British BSI EN, France NF EN), ISO, Japanese JIS and Chinese GB standard (for reference). Related material: AISI 316, 316L stainless steel
People also ask
What is 321 stainless steel?
Is 321 stainless steel better than 304 stainless steel?
What are 321 & 347 steel grades?
What is Grade 321?
Oct 23, 2001 · Grades 321 and 347 are the basic austenitic 18/8 steel (Grade 304) stabilized by Titanium (321) or Niobium (347) additions. These grades are used because they are not sensitive to intergranular corrosion after heating within the carbide precipitation range of 425-850 °C. Grade 321 is the grade of choice for applications in the temperature ...
Corrosion Resistance. 321 stainless steel exhibits good general corrosion resistance, and excellent resistance to intergranular corrosion after exposure to temperatures in the chromium carbide precipitation range of 800 – 1500°F (427 – 816°C), 321 resists oxidation to 1500°F (816°C) and has higher creep and stress rupture properties than alloys 304 and 304L.
Mar 17, 2023 · It is non-magnetic. 321 SS provides you with the best resistance to stress corrosion cracking. Great weldability due to its intergranular corrosion resisting attributes. Has high tensile and yield strength levels. Formability features are the best. Can withstand marine environments to a higher level.
The material 321 is an austenitic stainless steel with a titanium alloy, which stabilizes the metal against chromium carbide formation. For this reason, 321 can be welded with excellent resistance to intergranular corrosion. The material is also known by the designation EN 1.4541 and the material number X6CrNiTi18-10.
