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Baja nirkarat atau baja tahan karat (bahasa Inggris: stainless steel) adalah material yang mengandung senyawa besi dan setidaknya 12% Kromium untuk mencegah proses korosi (pengaratan logam). Kemampuan tahan karat diperoleh dari terbentuknya lapisan film oksida Kromium yang menghalangi proses oksidasi besi (Ferum).
- 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
Austenitic stainless steel is one of the five classes of stainless steel by crystalline structure (along with ferritic, martensitic, duplex and precipitation hardened). Its primary crystalline structure is austenite ( face-centered cubic ) and it prevents steels from being hardenable by heat treatment and makes them essentially non-magnetic. [2]
321 Stainless Steel: Composition, Properties. 321 stainless steel is based on Cr-Ni-Ti Austenitic stainless steel, and it is similar to 304 stainless steel, but with better resistance to intergranular corrosion resistance due to the addition of titanium element, and high temperature strength.
Aug 15, 2023 · 321 stainless steel is a Ni-Cr-Ti austenitic stainless steel used in the manufacture of acid-resistant containers and wear-resistant equipment linings and pipelines. Japanese grade: SUS321. UK grade: 304S12, 321920. German grade: X10CrNiTi189. Also known as: Austenitic Stainless Steel.
Oct 23, 2001 · Grade 321 is the grade of choice for applications in the temperature range of up to about 900 °C, combining high strength, resistance to scaling and phase stability with resistance to subsequent aqueous corrosion. Grade 321H is a modification of 321 with higher carbon content, to provide improved high-temperature strength.
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