Duplex Steel S31803/S32205 Fasteners
Sankalp Alloys Overseas is an overall Manufacturer of the wide degrees of Duplex Steel Fasteners. Sankalp Alloys Overseas is a worldwide manufacturer of the wide ranges of Duplex Steel Fasteners. We are supplying and exporting the superior quality of the fasteners to the clients available around the globe.
UNS S31803 content - 22% chromium and 5% nickel - is commonly called 2205. It has wide usage in food processing due to its resistance to pitting, crevice corrosion, and erosion-corrosion. This duplex steel grade has a good balance of properties that make it attractive as an alternative to other grades of stainless steel, particularly where a high level of resistance to corrosive environments is required in applications.
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ASTM A479 Duplex Stainless Steel 1.4462 Bolts offer resistance to stress corrosion cracking and localized corrosion, including intergranular, pitting, and crevice corrosion. The ASME SA 479 Duplex Steel UNS S31803 Hex Screws are magnetic, which can make this material accessible to distinguish from common austenitic grades of stainless steel.
These Duplex Steel UNS S32205 Bolts are high-strength fasteners made from duplex stainless steel alloy that combine the advantages of austenitic and ferritic steel. These bolts shall present improved resistance to SCC and find extensive uses in harsh and corrosive environments, like marine and offshore oil and gas applications. They have significant uses in the fields of chemical processing and food processing industries.
Sankalp Alloys Overseas is one of the leading distributors of Duplex Steel UNS S31803 and UNS S32205 fasteners, which we supply to our customers worldwide. We offer precision and reliability in Duplex Steel Fasteners as per the diversified requirements of clients. We ensure that our fasteners have to go through a series of severe tests so that they can stand up to the stringent standards of various hostile environments.
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S31803/S32205 Duplex Steel ASTM A182 Fasteners Equivalent Grades
| STANDARD | UNS | WNR. |
|---|---|---|
| Duplex Steel 2205 | S31803 / S32205 | 1.4462 |
Chemical Alloyion of Duplex Steel S31803/S32205 Industrial Fasteners
| Grade | Common Name | C% | Mn% | Si% | P% | S% | Cr% | Ni% | Mo% | N% |
|---|---|---|---|---|---|---|---|---|---|---|
| 2205 | S31803 | 0.030 | 2.00 | 1.00 | 0.030 | 0.020 | 21.0-23.0 | 4.5-6.5 | 2.5-3.5 | 0.08-0.20 |
| S32205 | 0.030 | 2.00 | 1.00 | 0.030 | 0.020 | 22.0-23.0 | 4.5-6.5 | 3.0-3.5 | 0.14-0.20 |
Mechanical Properties Of ASME SA182 Duplex Steel Bolts & Nuts
| Tensile Strength, ksi | 90 min |
|---|---|
| 0.2% Yield Strength, ksi | 65 min |
| Elongation, % | 25 min |
| Hardness [HRC] | 293 max |
Physical Properties of UNS S31803 & S32205 Duplex Stainless Steel Fasteners
| Density lbm/in3 | Electrical Resistivity mW•in | Thermal Conductivity (BTU/hr•ft•°F) | Heat Capacity BTU/lbm•°F | Electrical Resistivity (in x 10-6) | |
|---|---|---|---|---|---|
| at 68°F | 0.278 | 27.6 | 8.7 | 0.112 | 33.5 |
| at 212°F | 26.1 | 9.2 | 0.119 | 35.4 | |
| at 392°F | 25.4 | 9.8 | 0.127 | 37.4 | |
| at 572°F | 24.9 | 10.4 | 0.134 | 39.4 |
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