321 321H Stainless Steel Plate
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321 stainless steel sheet plate is also advantageous for high temperature service because of its good mechanical properties. Alloy 321 stainless steel plate offers higher creep and stress rupture properties than Alloy 304 and, particularly, Alloy 304L, which might also be considered for exposures where sensitization and intergranular corrosion are concerns.
SS 321 plate is the higher carbon (0.04 - 0.10) version of the alloy. It was developed for enhanced creep resistance and for higher strength at temperatures above 1000oF (537°C). In most instances, the carbon content of the plate enables dual certification.Alloy 321 stainless steel plate cannot be hardened by heat treatment, only by cold working. It can be easily welded and processed by standard shop fabrication practices.
Applications Of 321 Stainless Steel Plate
Aerospace – piston engine manifolds
Chemical Processing
Expansion Joints
Food Processing – equipment and storage
Petroleum Refining – polythionic acid service
Waste Treatment – thermal oxidizers
Pharmaceutical Production
Standards
ASTM........A 240
ASME........SA 240
AMS...........5510
Chemical Analysis
Weight % (all values are maximum unless a range is otherwise indicated)
| Element | 321 | 321H |
|---|---|---|
| Chromium | 17.00 min.-19.00 max. | 17.00 min.-19.00 max. |
| Nickel | 9.00 min.-12.00 max. | 9.00 min.-12.00 max. |
| Carbon | 0.08 | 0.04 min.-0.14 max. |
| Manganese | 2.00 | 2.00 |
| Phosphorus | 0.045 | 0.045 |
| Sulfur | 0.03 | 0.03 |
| Silicon | 0.75 | 0.75 |
| Titanium | 5 x (C + N) min.-0.70 max. | 4 x (C + N) min.-0.70 max. |
| Nitrogen | 0.10 | 0.10 |
| Iron | Balance | Balance |
Physical Properties
-
Density
0.286 lbs/in3
7.920 g/cm3
-
Specific Heat
0.12 BTU/lb-°F (32 – 212°F)
444 J/kg-°K (0 – 100°C)
-
Modulus of Elasticity
28.0 x 106 psi
193 GPa
-
Thermal Conductivity 200°F (100°C)
9.3 BTU/hr/ft2/ft/°F
16.0 W/m-°K
-
Melting Range
2550 – 2635°F
1398 – 1446°C
-
Electrical Resistivity
72 Microhm-cm at 20°F
Mean Coefficient of Thermal Expansion
| Temperature Range | |||
|---|---|---|---|
| °F | °C | in/in °F | cm/cm °C |
| 68-212 | 20-100 | 9.2 x 10-6 | 16.0 x 10-6 |
| 68-1112 | 20-600 | 10.5 x 10-6 | 18.9 x 10-6 |
| 68-1832 | 20-1000 | 11.4 x 10-6 | 20.5 x 10-6 |
Mechanical Properties
Typical Values at 68°F (20°C)
| Yield Strength 0.2% Offset |
Ultimate Tensile Strength |
Elongation in 2 in. |
Hardness | ||
|---|---|---|---|---|---|
| psi (min.) | (MPa) | psi (min.) | (MPa) | % (min.) | (max.) |
| 30,000 | 205 | 75,000 | 515 | 40 | 217 Brinell |
GNEE Steel 321 Stainless Steel Plate Stock
Stainless Steel 321 1.4541 Seamless Pipe
ASTM A312 TP321 321H Stainless Steel Welded Pipes
321 321H Stainless Steel Square Tube
| Stainless Steel 321 Chequered Plate | UNS S32100 Quarto Plate |
| 321 SS Sheet | 321H Stainless Steel Tisco Plate |
| SS A240 321 Chequer Plate | ASTM A240 321H Tread Plate |
| ASME SA240 321H Checker Plate | Stainless Steel 1.4541 Strip |
| ASTM A240 321H Plate Brushed Finish | 321H Stainless Steel Hot Rolled Sheet |
| Stainless Steel 321 10mm Shim | UNS S32100 Cold Rolled Sheet |
| ASTM A240 321H 1/4 Inch Coil | Stainless Steel 1.4541 Perforated Sheet |
| Stainless Steel 1.4541 Plate | 321H Stainless Steel Rolling Plate |
| UNS S32100 Hot Rolled Plate | ASTM A240 321H Foil |
| 321H Stainless Steel Cold Rolled Plate | ASME SA240 321H Bbq Plate |
| ASTM A240 321H Plate 2b Finish | 321 SS Coil |
| ASME SA240 321H Plate Mill Finish | SS A240 321 Strip Tape |
| Stainless Steel 1.4541 Custom Cut Plate | 321 SS Sheet |
| 321H Stainless Steel Shim | Stainless Steel 321 Laser Cut Plate |
| ASTM A240 321H Embossed Sheet | Stainless Steel 1.4541 Perforated Sheet |
If your next project is 321 stainless steel plate, GNEE Steel provides high-quality stainless steel plates, stainless steel pattern plates, stainless steel perforated plates, etc., please contact us.ss@gneesteel.com
