S32304 stainless steel is a duplex stainless steel grade that combines excellent corrosion resistance with high strength. The unique composition of this material offers a blend of properties that make it ideal for applications where both corrosion resistance and mechanical strength are critical.
s32304 Stainless Steel Bar
Introduction
s32304 stainless steel is a duplex stainless steel grade that combines excellent corrosion resistance with high strength. The unique composition of this material offers a blend of properties that make it ideal for applications where both corrosion resistance and mechanical strength are critical.
Chemical Composition
Chromium (Cr):22.0 - 24.0%
Nickel (Ni):3.5 - 5.5%
Molybdenum (Mo):0.05 - 0.60%
Nitrogen (N):0.05 - 0.20%
Carbon (C):≤ 0.03%
Manganese (Mn):≤ 2.00%
Silicon (Si):≤ 1.00%
Phosphorus (P):≤ 0.035%
Sulfur (S):≤ 0.015%
Key Properties
Corrosion Resistance:s32304 stainless steel exhibits excellent resistance to general corrosion, pitting, and crevice corrosion, particularly in chloride environments.
Strength:The duplex microstructure of s32304 stainless steel provides high mechanical strength, making it stronger than conventional austenitic stainless steels.
Weldability:s32304 stainless steel has good weldability, and its low carbon content minimizes the risk of intergranular corrosion in welded structures.
Toughness:This grade maintains good toughness, even in low temperatures.
Mechanical Properties
Tensile Strength:600 - 800 MPa
Yield Strength:400 - 600 MPa
Elongation:≥ 25%
Hardness:≤ 280 HB
Applications
s32304 stainless steel bars are used in a wide range of applications where high strength and corrosion resistance are required. Common uses include:
Structural components in the oil and gas industry
Chemical processing equipment
Heat exchangers
Pressure vessels
Marine and coastal environments
Pulp and paper industry
Standards and Specifications
ASTM/AISI:UNS S32304
EN:1.4362
DIN:X2CrNiN23-4
JIS:SUS2304
GB:00Cr23Ni4N
Advantages
Excellent resistance to stress corrosion cracking
High mechanical strength
Good weldability without the need for post-weld heat treatment
Lower cost compared to higher-alloyed grades like 2205 and 2507
Conclusion
s32304 stainless steel bars offer a unique combination of corrosion resistance, strength, and cost-effectiveness, making them suitable for a variety of industrial applications. Their versatility and durability ensure reliable performance in challenging environments.
| 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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