Stainless Steel 321 has similar composition to 304 Stainless Steels but with addition of Titanium.
Stainless Steel 321 is also known as AISI 321, Nirosta 4541, Polarit 731, and Remanit 4541.
| Chemical Composition | Specifications | Designations | Key Features | Typical Applications | ||||||||||||||||||||||||||||||||||||
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ASTM A313
ASTM A240 ASTM A479 BS EN 10088-3:2014 |
W.Nr. 1.4541
UNS S32100 AWS 133 |
Similar composition to 304 Stainless Steels but with addition of Titanium
Good creep and oxidation resistance make this a cost effective material for a number of applications |
Refinery Equipment
Heat Exchangers Engineered components Food Processing Waste Treatment |
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| Density | 8.03 g/cm³ | 0.29 lb/in³ |
| Melting Point | 1370°C | 2500°F |
| Coefficient of Expansion | 16.6 μm/m °C (20 – 100°C) | 9.2 x 10-6 in/in °F (70 – 212°F) |
| Modulus of Rigidity | 78 kN/mm² | 11300 ksi |
| Modulus of Elasticity | 193 kN/mm² | 28000 ksi |
| Heat Treatment of Finished Parts | |||||
|---|---|---|---|---|---|
| Condition as supplied by Alloy Wire | Type | Temperature | Time (Hr) | Cooling | |
| °C | °F | ||||
| Annealed or Spring Temper | Stress Relieve | 450 | 840 | 1 | Air |
| Properties | ||||
|---|---|---|---|---|
| Condition | Approx. tensile strength | Approx. operating temperature | ||
| N/mm² | ksi | °C | °F | |
| Annealed | 600 – 800 | 87 – 116 | -200 to +300 | -330 to +570 |
| Spring Temper | 1300 – 2200 | 189 – 319 | -200 to +300 | -330 to +570 |
The above tensile strength ranges are typical. If you require different please ask.
