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Duplex Stainless Steel
Duplex Stainless Steel
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Stainless Steel Alloy Duplex 2202 DX2202

Stainless Steel Alloy Duplex 2202 DX2202

Duplex 2202. or DX2202. is an austenitic-ferritic stainless steel. It offers users general resistance to corrosion that is comparable to Type 304L

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Duplex 2202. or DX2202. is an austenitic-ferritic stainless steel. It offers users general resistance to corrosion that is comparable to Type 304L. Some of the other key characteristics of Duplex 2202 include:

  • Improved mechanical strength
  • Service temperature range of -50 °C to 300°C
  • Stress corrosion resistance that is often double other austenitic stainless steels
  • Can be used in combination with nitric acid

Due to these and other benefits, Duplex 2202 is used in a wide variety of critical industrial applications including:

  • Construction applications such as crash barriers and footbridges
  • Oil tanks
  • Automotive structure
  • Desalination
  • Pulp and Paper tanks
  • Juice tanks
  • Drinking water systems

In order for stainless steel to qualify as Duplex 2202. it must have a certain chemical composition that includes:

  • Cr 23%
  • Ni 2.5%
  • Mn 1.30%
  • Mo <0.30%
  • N 0.20%
  • C 0.025% max

Yuze Metal supplies our customers with Duplex 2202 in a number of different forms including sheets, blanks, and strips. As with everything Continental Steel sells, the Duplex 2202 complies with a number of different international standards including UNS and ASTM.

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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