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AISI 321 Stainless Steel Plate SUS321 1.4541

AISI 321 Stainless Steel Plate SUS321 1.4541

321 stainless steel plate is an austenitic stainless steel that contains titanium as a stabilizing element. This grade is known for its excellent resistance to intergranular corrosion after exposure to temperatures in the chromium carbide precipitation range of 800–1500°F (427–816°C).

GB/T ISO ASTM TOCT DIN JIS

321 Stainless Steel Plate/Sheet Details

Overview

321 stainless steel plate/sheet is an austenitic stainless steel that contains titanium as a stabilizing element. This grade is known for its excellent resistance to intergranular corrosion after exposure to temperatures in the chromium carbide precipitation range of 800–1500°F (427–816°C). 321 stainless steel offers excellent mechanical properties and is suitable for high-temperature environments.

Key Characteristics

Corrosion Resistance: Provides excellent resistance to intergranular corrosion, making it ideal for use in high-temperature applications.

Stabilization with Titanium: Titanium addition helps prevent carbide precipitation, maintaining corrosion resistance and mechanical properties at elevated temperatures.

Mechanical Properties: Exhibits high strength and good toughness even at elevated temperatures.

Formability: Can be readily formed and welded, making it suitable for a wide range of fabrication processes.

Chemical Composition

Carbon (C): ≤ 0.08%

Manganese (Mn): ≤ 2.00%

Silicon (Si): ≤ 0.75%

Phosphorus (P): ≤ 0.045%

Sulfur (S): ≤ 0.03%

Chromium (Cr): 17.0-19.0%

Nickel (Ni): 9.0-12.0%

Titanium (Ti): ≥ 5x(C) and ≤ 0.70%

Common Applications

Aerospace Industry: Used in the manufacture of aircraft exhaust manifolds and other high-temperature components.

Chemical Processing: Employed in chemical processing equipment that requires resistance to high-temperature corrosion.

Thermal Expansion Joints: Suitable for use in thermal expansion joints due to its stability at high temperatures.

Furnace Parts: Ideal for components exposed to high temperatures such as furnace parts and heat exchangers.

Petroleum Refining: Utilized in petroleum refining equipment where high-temperature resistance is crucial.

Advantages

High-Temperature Resistance: Retains strength and resists oxidation at elevated temperatures, making it suitable for high-heat environments.

Excellent Intergranular Corrosion Resistance: Titanium stabilization prevents carbide precipitation, maintaining corrosion resistance after exposure to high temperatures.

Good Mechanical Properties: Offers high strength and toughness, even in challenging conditions.

Versatile Fabrication: Can be easily formed, welded, and machined, allowing for a wide range of manufacturing processes.

Summary

321 stainless steel plate/sheet is a high-performance material designed for high-temperature applications. Its excellent resistance to intergranular corrosion, combined with good mechanical properties and ease of fabrication, makes it an ideal choice for industries such as aerospace, chemical processing, and petroleum refining.

For more detailed information or specific inquiries about 321 stainless steel plate/sheet, please contact us.

Common Surfaces

Common Surfaces

Stainless Steel Standards Comparison Table

STS USA UNS CHINA EURONORM RUSSIA SWEDISH JAPANESE
GRADE AISI/ASTM NO GB NO NAME GOST SS JIS
201 201 S20100 12Cr17Mn6Ni5N 1.4372 - - - SUS 201
301 301 S30100 12Cr17Ni7 1.4310 X 12 CrNi 17 7 - 2331 SUS 301
303 303 S30300 1Cr18Ni9MoZr 1.4305 X 10 CrNiS 18 9 - 2346 SUS 303
304 304 S30400 06Cr18Ni9 1.4301 X 6 CrNi 18 10 08KH18N10
06KH18N11
2332 SUS 304
304L 304L S30403 022Cr19Ni10 1.4307 X 3 CrNi 18 10 03KH18N11 2352 SUS 304L
316 316 S31600 0Cr17Ni12Mo2 1.4401 X 6 CrNiMo 17 12 2 - 2347 SUS 316
316L 316L S31603 022Cr17Ni12Mo2 1.4404 X 3 CrNiMo 17 12 2 - 2348 SUS 316L
316Ti 316Ti S31635 0Cr18Ni12Mo2Ti 1.4571 X 6 CrNiMoTi 17 12 2 08KH17N13M2T
10KH17N13M2T
2350 -
321 321 S32100 0Cr18Ni11Ti 1.4541/1.4878 X 6 CrNiTi 18 10 12KH18N10T 2337 SUS 321
347 347 S34709 0Cr18Ni11Nb 1.4550 X 6 CrNiNb 18 10 - 2338 SUS 347
309S 309S S30908 0Cr23N13 1.4833 X 6 CrNi 22 13 20KH23N18 - SUS 309S
310S 310S S31008 06Cr25Ni20 1.4842 X 6 CrNi 25 20 20KH25N20S2 2361 SUS 310S
416 416 S41600 Y1Cr13 1.4005 X12CrS13 - 2380 SUS 416
2205 2205 S32205/S31803 00Cr22Ni5Mo3N 1.4462 X2CrNiMoN22-5-3 02Ch22N5AM2 2377 SUS 329J3L
2507 2507 S32750 00Cr25Ni7Mo4N 1.4410 X 2 CrNiMoN 25-7-4 - - -
904L 904L N08904 - 1.4539 - - - -
254SMO 254SMO S31254 - 1.4547 X1CrNiMoCuN20-18-7 - 2378 -
253MA 253MA S30815 - 1.4835 X9CrNiSiNCe21-11-2 - 2368 -
17-4PH/630 17-4PH/630 S17400 0Cr17Ni4Cu4Nb 1.4542 X5CrNiCuNb16-4 05Ch16N4D2B - SUS630

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