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PRODUCT CENTERThe Main Steel Products Are Stainless Steel Coils, Stainless Steel Plates, Stainless Steel Rods, Stainless Steel Tubes, Stainless Steel Profiles, Stainless Steel Strips, Etc.
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Stainless Steel 321/321H Sheet/Plates
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Alloy 321 (UNS S32100) is stabilized stainless steel plate which offers as its main advantage an excellent resistance to intergranular corrosion following exposure to temperatures in the chromium carbide precipitation range from 800 to 1500°F (427 to 816°C). Alloy 321 stainless steel plate is stabilized against chromium carbide formation by the addition of titanium.
Alloy 321 stainless steel 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.
Range of Stainless Steel Sheet
| Material | Size | Thickness | Specification |
| Stainless Steel Sheet | 1000 mm x 2000 mm, 1220 mm x 2440 mm (4′ x 8′), 1250 mm x 2500 mm, 1500 mm x 3000 To 6000 mm, 2000 mm x 4000 To 6000 mm |
0.3 mm To 120 mm | A-240 |
Technical data
| Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
| BS | En | No | Name | ||||
| 321 | S32100 | 321S31 | 58B, 58C | 1.4541 | X6CrNiTi18-10 | 2337 | SUS 321 |
| 321H | S32109 | 321S51 | – | 1.4878 | X6CrNiTi18-10 | – | SUS 321H |
Type 321 Stainless Steel is covered by the following specifications:AMS 5510, ASTM A240.
Chemical Composition: ASTM A240
| Element | Type 321 |
| Carbon | 0.08 max. |
| Manganese | 2.00 max. |
| Sulfur | 0.030 max. |
| Phosphorus | 0.045 max. |
| Silicon | 0.75 max. |
| Chromium | 17.00 – 19.00 |
| Nickel | 9.00 – 12.00 |
| Titanium | 5x(C+N) min. – 0.70 max. |
| Nitrogen | 0.10 max. |
Mechanical Properties:
| Type | Yield Strength 0.2% offset (KSI) | Tensile Strength (KSI) | % Elongation (2" Gauge length) | Hardness Rockwell |
| 321 | 30 min. | 75 min. | 40 min. | HRB 95 max. |
Formability
Type 321 can be readily formed and drawn, however, higher pressures are required and more springback is encountered than for carbon steel and ferritic stainless steels. Like other austenitic stainless steels,Type 321 work hardens quickly and may require annealing after severe forming.The presence of certain alloying elements can make Type 321 more difficult to form than other austenitic grades such as 301, 304 and 305.
Heat Treatment
Type 321 is non-hardenable by heat treatment.Annealing: Heat to 1750 – 2050 °F (954 – 1121°C), then water quench or air cool.
Weldability
The austenitic class of stainless steels is generally considered to be weldable by the common fusion and resistance techniques. Special consideration is required to avoid weld ”hot cracking” by assuring formation of ferrite in the weld deposit. This particular alloy is generally considered to have comparable weldability to Types 304 and 304L. A major difference is the titanium addition that reduces or prevents carbide precipitation during welding. When a weld filler is needed, either AWS E/ER 347 or E/ER 321 is most often specified.Type 321 is well known in reference literature and more information can be obtained in this way.
Factory
With 13 years of experience in competitive steel products at home and abroad, to provide reliable services to global customers.The main products are steel pipe, steel plate, steel coil, steel rod, steel strip, section steel, silicon steel, stainless steel series, carbon steel series, aluminum products and so on. Products are widely used in precision instruments, aviation, ships, automobiles, home appliances, construction, bridges, boilers, highway guardrail and other industries.
Packaging & Delivery
Packing: Waterproof Paper, Steel Strip Packed and other Standard Export Seaworthy Package, or customized package.
Delivery Time: 7-15 days after get deposit.
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Application
Due to the many great features of stainless steel, it is widely used in many industries. It includes constructions, home appliances, automobiles, kitchen accessories, mechanical structure, decoration engineering, chemical industry, etc. Let's have a brief review.
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