Active Member
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[China]
Address: Wealth Center,Economic Development Zone,Liaocheng City,Shandong Province,Zip Code 252000,China.
Contact name:Zhang
Shandong Modern International Trade Co., Ltd. |
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Cold rolled 321 stainless steel sheet metal 4x8 2b BA finish
Product Description
When the temperature reaches 800-1500 ° F (427-816 ° C) and
chromium carbide precipitates, it can still maintain good
resistance to intergranular corrosion. Due to the addition of
titanium to the composition, 321 alloy can still maintain stability
in the case of chromium carbide formation.
Due to its excellent mechanical properties, 321 alloy stainless
steel has advantages in working in high temperature environments.
Compared with 304 alloy, 321 alloy stainless steel has better
ductility and resistance to stress fracture.
Table 1.Composition ranges for 321 grade stainless steel
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Other | |
| 321 | min. max | - 0.08 | 2.00 | 0.75 | 0.045 | 0.030 | 17.0 19.0 | - | 9.0 12.0 | 0.10 | Ti=5(C+N) 0.70 |
Table 2.Mechanical properties of 321 grade stainless steel
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 321 | 515 | 205 | 40 | 95 | 217 |
Table 3.Physical properties of 321 grade stainless steel in the annealed condition
| Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (μm/m/°C) | Thermal Conductivity (W/m.K) | Specific Heat 0-100°C (J/kg.K) | Electrical Resistivity (nΩ.m) | |||
| 0-100°C | 0-315°C | 0-538°C | at 100°C | at 500°C | |||||
| 321 | 8027 | 193 | 16.6 | 17.2 | 18.6 | 16.1 | 22.2 | 500 | 720 |
Typical applications include:
•Aircraft exhaust manifolds
•Expansion joints
•Bellows
•Furnace parts
•Heating element tubing
•Heat Exchangers
•Woven or welded screens for high temperature mineral processing
•Spiral Welded tube for burner pipes and flues
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