| Alloy |
UNSUnited States |
DIN Germany |
JIS Japan |
GB China |
The main purpose |
| UNS |
AISI |
Original brand number |
New brand |
| 2101 |
UNS S32101 |
2101 |
1.4162 |
X2CrMnNiN21-5-1 |
— |
— |
|
It is a duplex stainless steel that is simple and suitable for general environments. Like other duplex steels, 2101 offers higher hardness and better resistance to chloride ion stress corrosion cracking than 300 series stainless steels. The application of manganese element maintains the phase balance of ferrite and austenite, and the nickel element is relatively reduced in the material. Therefore, the price of 2101 is higher than that of 304/304Land316/316L has more competitive advantages. |
| 2304 |
UNS S32304 |
2304 |
1.4362 |
X2CrNiN23-4 |
— |
03Cr23Ni4N |
022Cr23Ni4MoCuN |
It has certain resistance to oxidation corrosion and dilute sulfuric acid corrosion, good resistance to uniform corrosion, pitting corrosion and crevice corrosion, good resistance to stress corrosion and fatigue corrosion, high mechanical strength, and weldability. Yield strength is twice that of austenitic stainless steel |
| 2404 |
UNS S82441 |
|
1.4662 |
|
|
|
|
|
| 2205 |
UNS S31803 |
|
1.4462 |
X2CrNiMoN22-5-3 |
|
00Cr22Ni5Mo3N |
022Cr22Ni5Mo3N |
It is currently the most commonly used steel among duplex stainless steels in the world. It has resistance to environments containing hydrogen sulfide, carbon dioxide, and chloride. It can be cold and hot processed and formed. It has good weldability and is suitable for use as structural materials to replace 304L and 316L austenitic stainless steel. Used to make oil well pipes, chemical storage tanks, heat exchangers, condensation coolers and other pressure equipment prone to pitting and stress corrosion. |
| 2205 |
UNS S32205 |
2205 |
1.4462 |
X2CrNiMoN22-5-3 |
SUS329J3L |
00Cr22Ni5Mo3N |
022Cr22Ni5Mo3N |
Derived from S31803, it has a narrower range. Features and uses are the same as S31803 |
| 2507 |
UNS S32750 |
2507 |
1.4410 |
X2CrNiMoN25-7-4 |
— |
03Cr25Ni7Mo4N |
022Cr25Ni7Mo3WCuN |
It is a super duplex stainless steel with excellent corrosion resistance and strength properties. with UNSS32205、SUS329J3L、SUS329J4L(NAS64), it has better local corrosion resistance and can be used in complete sets of chemical equipment, complete sets of seawater desalination equipment, etc. |
| Zeron 100 |
UNS S32760 |
|
1.4501 |
X2CrNiMoCuWN25-7-4 |
— |
03Cr25Ni7Mo4WCuN |
022Cr25Ni7Mo4WCuN |
It is a super duplex stainless steel with excellent corrosion resistance and strength properties. with UNSS32205、SUS329J3L、SUSCompared with 329J4L, it has better local corrosion resistance and can be used in complete sets of chemical equipment, complete sets of seawater desalination equipment, etc. |
| 255 |
UNS S32550 |
255 |
1.4507 |
X2CrNiMoCuN25-6-3 |
SUS329J4L |
04Cr26Ni6Mo3Cu2N |
03Cr25Ni6Mo3Cu2N |
It has good mechanical properties and local corrosion resistance, especially the wear resistance is better than ordinary austenitic stainless steel, making it an ideal material in seawater. Suitable for manufacturing propellers, shafts, submarine seals, etc. for ships. It is also suitable for chemical industry, petrochemical industry, natural gas, pulp, papermaking and other fields. |
| 329 |
UNS S32900 |
329 |
1.4660 |
|
SUS329J1 |
|
|
It has good resistance to pitting corrosion and crevice corrosion in seawater, good oxidation resistance, and good stress corrosion resistance in water media containing chloride. |
| XM-26 |
UNS S31100 |
|
|
|
|
|
|
|
|
UNS S32202 |
|
|
|
|
|
|
|
|
UNS S32506 |
|
|
|
|
|
022Cr25Ni6Mo2N |
|
