Table Of Content
Nitrogen Content of INOX 316 & DSS Material Provide Corrosion Resistance In Hazardous Environment, Check Properties
Properties And Features Of INOX 316 And DSS Materials
- Applications and Suitability
- Cost Considerations
- Weldability
- Mechanical Properties
- Corrosion Resistance
- Material Composition
Duplex Steel Is Known For 4 Times Better Tensile Stress Compared To DIN 1.4401 AISI 316
Mechanical Properties Of DSS And Stainless Steel 316
| Grade | Yield strength 0.2% MPa | Tensile Strength MPa |
|---|---|---|
| Duplex 2205 | 450 | 655 |
| Duplex 1803 | 450 | 620 |
| SS 316 | 515 | 205 |
Welding Considerations Of Duplex Stainless Steels
Advantages And Disadvantages Of DSS And 316 Stainless Steels
Advantages And Disadvantages Of Duplex Stainless Steel vs 316 Austenitic Steel
| 316 Austenitic Steel | |
|---|---|
| Advantages | Disadvantages |
|
|
| Duplex Stainless Steel | |
|
|
SS 316 Has 18% Chromium and Duplex Has 18-28% Chromium Composition
Chemical Composition Of DSS Materials and 316 Austenitic Steel
| Grade | Ni | P | Mn | C | Si | Cr | Mo | S | N | Fe |
|---|---|---|---|---|---|---|---|---|---|---|
| S31803 | 4.5-6.5 | 0.03 max | 2.00 max | 0.03 max | 1.00 max | 21.0-23.0 | 2.5-3.5 | 0.02 max | 0.08-0.20 | Balance |
| S32205 | 4.5-6.5 | 0.03 max | 2.00 max | 0.03 max | 1.00 max | 22.0-23.0 | 3.0-3.5 | 0.02 max | 0.14-0.20 | Balance |
| 316 SS | 10.00 - 13.00 | 0.0 - 0.05 | 0.0 - 2.00 | 0.0 - 0.07 | 0.0 - 1.00 | 16.50 - 18.50 | 2.00 - 2.50 | 0.0 - 0.03 | 0.0 - 0.11 | Balance |
Equivalents Of Stainless Steel 316 And Duplex Alloy
| AISI | AFNOR | EN / DIN | Forging | EN | UNS | Reg.TM | |
|---|---|---|---|---|---|---|---|
| 316 | Z7CND17.11.02 | 1. 4401 | A182 F316 | X5CrNiMo17.12.2 | S31600 | Austenite | |
| Duplex | Z3CND22.05Az | 1. 4462 | A182 F51 | X2CrNiMoN22.5.3 | S31803/S32205 | SAF 2205 | Duplex |
PREN Of SS 316 And Duplex
| Material | PREN |
|---|---|
| Stainless steel 316 | Duplex |
| 24 | 35 |
AISI 316 And Duplex Alloy Pressure Rating
Pressure Rating As per ASME B31.3 American Standard
| Grade | Maximum internal pressure, bar |
||||||
|---|---|---|---|---|---|---|---|
| 100°F | 200°F | 300°F | 400°F | 500°F | 600°F | 700°F | |
| 316/316L |
834 | 834 | 834 | 804 | 750 | 708 | 679 |
| S31803 (SAF 2205) |
1251 | 1251 | 1205 | 1159 | 1134 | 1121 | - |
Uses Of Duplex Stainless Steel And SS 316
| Duplex Stainless Steel | Stainless Steel 316 Grade |
|---|---|
|
|
Percentage Of Chromium In Alloy 2205 & SUS 316
- DSS 2205: 22% chromium
- AISI/ SUS 316 16% chromium
Duplex Stainless Steel And SS 316 Thermal Properties
| Properties | UNS S32205 | AISI 316 |
|---|---|---|
| Thermal Expansion | 13µm/m-K | 6µm/m-K |
| Specific Heat Capacity | 480J/kg-K (0.11BTU/lb-°F) | 470J/kg-K (0.11BTU/lb-°F) |
| Melting Completion | 1450°C (2640°F) | 1400°C (2550°F) |
| Corrosion | 440°C (820°F) | 410°C (770°F) |
| Latent Heat of Fusion | 300J/g | 290J/g |
| Mechanical | 1070°C (1970°F) | 590°C (1090°F) |
| Melting Onset | 1400°C (2560°F) | 1380°C (2510°F) |
| Thermal Conductivity | 15 W/m-K (8.7BTU/h-ft-°F) | 15 W/m-K (8.9BTU/h-ft-°F) |
Physical Properties Of UNS S32205 AND DIN 316
| Properties | UNS S32205 | AISI 316 |
|---|---|---|
| Density | 7.8 g/cm3 (490 lb/ft3) | 7.9 g/cm3 (490 lb/ft3) |
UNS S31803 And DIN 316 Electrical Properties
| Properties | UNS S32205 | AISI 316 |
|---|---|---|
| Equal Weight (Specific) | 2.5 % IACS | 2.6 % IACS |
| Equal Volume | 2.2 % IACS | 2.3 % IACS |