321 Stainless Steel Plate
Prime Mill Grade | Certified China Exporter & Factory Direct Supply

321 Stainless Steel Plate - Technical Overview & Specifications
321(UNS S32100) is a titanium stabilized austenitic stainless steel with good general corrosion resistance. It has good intergranular corrosion resistance at a chromium carbide precipitation temperature of 800-1500 °F(427-816°C). The alloy is resistant to oxidation at 1500 °F(816°C) and has higher creep and stress rupture properties than the 304 and 304L alloys. It also has good low temperature toughness.
Product Parameters
| Product Name | 321 Stainless Steel Plate |
| Type | Plate |
| Thickness | 0.3mm-200mm |
| Length | 2000mm, 2438mm, 3000mm, 5800mm, 6000mm, 12000mm, etc. |
| Width | 40mm-600mm , 1000mm , 1219mm , 1500mm , 1800mm , 2000mm , 2500mm , 3000mm , 3500mm , etc. |
| Standard | ASTM, AISI, JIS, GB, DIN, EN, etc. |
| Surface | BA, 2B, NO.1, NO.4, 4K, HL, 8K, etc. |
| Scope of Application | Widely used in high temperature and electrical industry, medical equipment construction, chemical, food industry, agriculture and ship parts, food and beverage packaging, Kitchen supplies, trains, airplanes, conveyor belts, vehicles, bolts, nuts, springs and screens, etc. |
| Certificate | ISO, SGS, BV, etc. |
| Production Technology | Hot Rolling , Cold Rolling |
| Edge Processing | Edging , Trimming |
Chemical Composition
| C | Si | Mn | Cr | Ni | S | P |
|---|---|---|---|---|---|---|
| ≤ 0.08 | ≤ 0.75 | ≤ 2.0 | 17.0~19.0 | 9.0~12.0 | ≤ 0.03 | ≤ 0.045 |
Mechanical Properties
| Tensile Strength Kb (MPa) | Yield Strength σ0.2 (MPa) | Elongation D5 (%) | Hardness |
|---|---|---|---|
| ≥ 520 | ≥ 205 | ≥ 40 | ≤ 187HB;≤ 90HRB;≤ 200HV |
Physical Performance
| Density( g/cm³ ) | Modulus of Elasticity( Gpa ) | Coefficient of Thermal Expansion( 10 -6 /°C ) | Coefficient of Thermal Conductivity( W/m * K ) | Resistivity( ΜΩ. cm ) |
|---|---|---|---|---|
| 7.92 | 193 | 1 6.6 | 16.0 | 72 |
Product Features & Advantages
- Manufactured to ASTM, AISI, JIS, GB, DIN, EN, etc. with strict dimensional tolerance and surface quality
- Reliable Stainless Steel Plate solution for construction, machinery and industrial projects
- Custom processing available: cutting, bending, decoiling, slitting and surface polishing
- Mill Test Certificate (MTC) and full inspection provided
Applications & Industries
Scope of Application
Widely used in high temperature and electrical industry, medical equipment construction, chemical, food industry, agriculture and ship parts, food and beverage packaging, Kitchen supplies, trains, airplanes, conveyor belts, vehicles, bolts, nuts, springs and screens, etc.
Customer Reviews & Mill Quality Audits
Overall Satisfaction from Global EPC & Steel Buyers
EN 10204 3.1 Chemical & Tensile Verification Passed
SGS, BV & Cotecna Third-Party Audits Supported
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