321 is equivalent to
Corrosion Resistance of 321 Stainless Steel
321 stainless steel offers similar corrosion resistance to 304, with added resistance to intergranular corrosion due to its titanium content.
Heat Resistance of 321 Stainless Steel
Good resistance to oxidation in intermittent service up to 900°C and in continuous service to 925°C.
Machinability of 321 Stainless Steel
321 stainless steel is similar to 304 in terms of machinability, with a hardening rate that makes it less machinable than 410 stainless steel. It is more difficult to machine due to its titanium stabilization.
Welding of 321 Stainless Steel
321 stainless steel is similar to 304 in terms of machinability, with a hardening rate that makes it less machinable than 410 stainless steel. It is more difficult to machine due to its titanium stabilization.
Hot Working of 321 Stainless Steel
321 stainless steel is similar to 304 in terms of machinability, with a hardening rate that makes it less machinable than 410 stainless steel. It is more difficult to machine due to its titanium stabilization.
Annealing of 321 Stainless Steel
Solution heat treatment should be conducted at 920-1150℃ with rapid cooling. Stabilization treatment can be performed at 850-930℃ if specified. The solution temperature should not exceed 1066℃ to avoid chromium precipitation.
Heat Treatment of 321 Stainless Steel
321 stainless steel cannot be hardened by heat treatment; it can only be hardened by cold working.
Cold Working of 321 Stainless Steel
321 stainless steel is similar to 304 in terms of machinability, with a hardening rate that makes it less machinable than 410 stainless steel. It is more difficult to machine due to its titanium stabilization.
321 Stainless Steel Mechanical Property | ||||
Eigentum | Streckgrenze, min. (ksi) | Zugfestigkeit, min. (ksi) | Dehnung, min. (%) | Härte, max. (Rb) |
Wert | 30 | 75 | 40 | 95 |
Physical Properties of 321 Stainless Steel | ||
Eigentum | Wert | Einheit |
Dichte | 0.286 | lb/in³ |
Elastizitätsmodul | 28.0 x 106 | psi |
Wärmeausdehnungskoeffizient (68-212°F) | 9,2 x 10-6 | /°F |
Wärmeleitfähigkeit | 9.3 | Btu/Fuß·Std.·°F |
Spezifische Wärme | 0.12 | Btu/lb·°F |
Elektrischer Widerstand | 28.4 | Mikroohm-Eingang |
Grad | C (max) | Mn (max) | Si (max) | P (max) | S (max) | Cr | Ni | Fe (Gleichgewicht) | N (max.) | Ti(max) |
321 | 0.08 | 2 | 0.75 | 0.045 | 0.03 | 17.00-19.00 | 9.00-12.00 | Approximately 68-73% | 0.1 | 0.70% |
Stabilized with titanium, 321 stainless steel resists intergranular corrosion even after exposure to temperatures in the carbide precipitation range.
321 maintains strength and toughness at temperatures up to 900°C (1652°F).
321 provides excellent mechanical properties, making it suitable for high-stress applications.
321 is suitable for various manufacturing processes, including welding and forming.
Typ | Breite (mm) | Gewicht (MT) | Dicke (mm) | ||||
321 Coil | 1000, 1219, 1240, 1500 oder kundenspezifisch | 3-10 | 0.15-3.0 |
Typ | Breite (mm) | Länge (mm) | Dicke (mm) | |||||||||
321 Sheets | 1000, 1219, 1240, 1500 oder kundenspezifisch | 2000, 2438, 2500, 3000, 3048 | 0.3-3.0 |
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