Stainless 321 is a chromium-nickel steel which was developed with improved intergranular-corrosion resistance. Stainless 321 is resistant to atmospheric corrosion, sterilizing solutions, many organic chemicals, and a wide variety of inorganic chemicals. Type 321 should be used for applications requiring heating between 800 °F and 1650 °F such as aircraft collector rings, and exhaust manifolds, expansion joints, and high temperature chemical process equipment.
Stainless 321 is a chromium-nickel steel which was developed with improved intergranular-corrosion resistance. Stainless 321 is resistant to atmospheric corrosion, sterilizing solutions, many organic chemicals, and a wide variety of inorganic chemicals. Type 321 should be used for applications requiring heating between 800 °F and 1650 °F such as aircraft collector rings, and exhaust manifolds, expansion joints, and high temperature chemical process equipment.
Specification
PHYSICAL PROPERTIES
| Melting Point | Density | Specific Gravity | Modulus of Elasticity in Tension |
| 2550-2635° F 1398-1446° C | .286 lb/in³ 7.92 g/cm³ | 7.92 | 28 X 106psi 193 Gpa |
MECHANICAL PROPERTIES
| Alloy | Temper | Tensile Strength Minimum (psi) | Yield Strength Minimum 0.2% offset (psi) | % Elongation in 2" Minimum | Notes |
| 321 | Annealed | 75,000 | 30,000 | 40 % | - |
In 2016, it signed a strategic cooperation agreement with major domestic stainless steel factories for the sales of medium and heavy plates and special steel products, which also enabled the company to have new and brighter sales varieties. At the same time, it provides one-stop service for cutting, cutting, forming and and surface processing of stainless steel.
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