Details
Stainless steel plate materials available:
I. Austenitic Stainless Steel (300 Series)
| Material Grade | Composition | Properties | Applications |
|---|---|---|---|
| 304 Stainless Steel (06Cr19Ni10) | 18% Chromium (Cr), 8% Nickel (Ni), Carbon content ≤0.08% | General-purpose material, resistant to weak corrosive media (water, atmosphere), excellent plasticity and weldability, but weak resistance to chloride corrosion | Food processing equipment, architectural decoration, household appliances, etc. |
| 316 Stainless Steel (06Cr17Ni12Mo2) | 304 base with 2%-3% Molybdenum (Mo) added | Significantly improved resistance to chloride corrosion (e.g., seawater, salt spray environments), higher high-temperature strength | Marine engineering, chemical equipment, medical devices |
II. Duplex Stainless Steel
| Material Grade | Composition | Properties | Applications |
|---|---|---|---|
| 2205 Duplex Steel (S32205) | 22% Chromium (Cr), 3% Molybdenum (Mo), 5% Nickel (Ni), and Nitrogen (N) | Combines austenitic and ferritic structures, strength is 2 times that of 304, outstanding resistance to stress corrosion cracking | Oil and gas pipelines, offshore platform structural parts, pressure vessels |
| S32304 Duplex Steel | Medium-alloy duplex steel | Corrosion resistance close to 2205, but lower cost, suitable as a replacement for 304/316L | Pharmaceutical equipment, seawater desalination systems, etc. |
III. Ferritic Stainless Steel (400 Series)
| Material Grade | Composition | Properties | Applications |
|---|---|---|---|
| 430 Stainless Steel (10Cr17) | 17% Chromium (Cr), no Nickel (Ni) | Resistant to oxidizing acids and atmospheric corrosion, but poor toughness, weak weldability, lower cost | Automotive trim parts, appliance housings, tableware, etc. |
IV. Martensitic Stainless Steel
| Material Grade | Composition | Properties | Applications |
|---|---|---|---|
| 410 Stainless Steel (12Cr13) | 12% Chromium (Cr), 0.15% Carbon (C) | Achieves high hardness and wear resistance through heat treatment, but corrosion resistance is weaker than austenitic steel | Cutting tools, bearings, valve parts, etc. |
Material Selection Guidelines
| Selection Priority | Recommended Materials |
|---|---|
| Corrosion resistance first | For marine or chemical environments, choose 316 or duplex steel (e.g., 2205) |
| Cost-sensitive scenarios | 430 or low-alloy duplex steel (e.g., S32304) can replace 304/316L |
| High strength requirements | Duplex steel or martensitic steel (e.g., 410) suitable for mechanical load-bearing components |
| Export to the EU | Pay attention to the new "melting and casting traceability" regulation (effective April 2025): Chinese steel processed in a third country is still considered Chinese-origin |
Appendix: International Standard References
ASTM A240/A240M: Standard specification for stainless steel plate for pressure vessels (e.g., 316, 2205)
EN 10088-2: European standard covering specifications for corrosion resistance and high-temperature stability
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