AISI 202 Stainless Steel Plate | 202 China Mill Agent
What is AISI 202 Stainless Steel Plate?
As a professional China Mill Agent and stainless steel plate supplier, SHH STEEL is pleased to present AISI 202 Stainless Steel Plate.
AISI 202 (UNS S20200) is a member of the 200-series austenitic stainless steels. It is designed as a lower-nickel alternative to the classic 304 grade by increasing manganese and nitrogen content. This composition provides a good combination of strength, ductility, formability and corrosion resistance at a more economical price point.
AISI 202 is non-magnetic in the annealed condition and can be strengthened by cold working. It is widely used in applications where the corrosion resistance of 304 is not fully required, but better performance than the 201 grades is desired. Typical uses include kitchen equipment, food service, architectural components, transportation and general fabrication.
SHH STEEL, acting as a China Mill Agent, sources AISI 202 directly from major Chinese stainless steel mills. This supply model enables genuine mill-direct pricing, consistent quality, complete heat traceability and reliable delivery. We supply AISI 202 in plate, sheet and coil form across a practical range of thicknesses and surface finishes.
AISI 202 is often evaluated alongside astm a240 type 304 stainless steel sheet plate, astm a240 type 304l stainless steel sheet plate, and the lower-cost astm a240 type 201 stainless steel sheet plate when projects require an optimal balance of performance and cost.
Material Specification
| Specification Element | Requirement | SHH STEEL Compliance |
|---|---|---|
| Grade | AISI 202 / UNS S20200 | Confirmed |
| Related Standards | ASTM A240, ASME SA240, JIS G4305 (SUS202), GB/T 3280 | Available |
| Product Form | Plate, Sheet, Coil | Available |
| Delivery Condition | Solution Annealed | Standard |
| Thickness Range | 0.4 mm – 50 mm (thicker available on request) | Custom sizes supported |
| Width | Up to 1500–2000 mm | Available |
| Length | Up to 6000 mm or coil / cut-to-length | Available |
| Surface Finish | 2B, BA, No.1, No.4, HL, Polished | Available |
| Certification | EN 10204 3.1 / Mill Test Certificate | Available |
Chemical Composition
Typical Chemical Composition of AISI 202 (UNS S20200):
| Element | Content (%) |
|---|---|
| Carbon (C) | ≤ 0.15 |
| Silicon (Si) | ≤ 1.00 |
| Manganese (Mn) | 7.50 – 10.00 |
| Phosphorus (P) | ≤ 0.060 |
| Sulfur (S) | ≤ 0.030 |
| Chromium (Cr) | 17.00 – 19.00 |
| Nickel (Ni) | 4.00 – 6.00 |
| Nitrogen (N) | ≤ 0.25 |
| Iron (Fe) | Balance |
Compared with AISI 201, AISI 202 contains higher chromium and manganese levels, which generally provide slightly better corrosion resistance and strength. The reduced nickel content relative to 304 remains the main source of its cost advantage. For higher corrosion performance, customers often upgrade to astm a240 type 316l stainless steel sheet plate or astm a240 type 316ti stainless steel sheet plate.
Mechanical Properties
Annealed Condition (typical values)
| Property | Value |
|---|---|
| Tensile Strength | ≥ 515 MPa (75 ksi) |
| Yield Strength (0.2%) | ≥ 275 MPa (40 ksi) |
| Elongation (in 50 mm) | ≥ 40% |
| Hardness | ≤ 217 HB |
AISI 202 offers higher yield strength than standard 304 in the annealed condition, which can allow thickness reduction in suitable applications. When even higher strength is required, grades such as astm a240 type 2205 stainless steel sheet plate may be considered.
Physical Properties
- Density: approximately 7.80–7.85 g/cm³
- Magnetic Response: Non-magnetic in the annealed condition
- Melting Range: approximately 1400–1450°C
Material Comparison
| Grade | Nickel Content | Strength Level | Corrosion Resistance | Cost Level | Typical Preference |
|---|---|---|---|---|---|
| AISI 201 | 3.5–5.5% | High | Moderate | Lowest | Most economical 200-series |
| AISI 201L | 3.5–5.5% | High | Moderate (better weldability) | Low | Welded economical applications |
| AISI 202 | 4.0–6.0% | High | Better than 201 | Low | Balanced economy and performance |
| AISI 304 | 8.0–10.5% | Standard | Good | Medium | General purpose |
| AISI 304L | 8.0–12.0% | Standard | Good | Medium | Heavy welding |
AISI 202 provides a step up in chromium and overall performance from the 201 grades while remaining significantly more economical than 304. When higher corrosion resistance is needed, the common upgrades are astm a240 type 304 stainless steel sheet plate and astm a240 type 304l stainless steel sheet plate.
Corrosion Resistance
AISI 202 offers good resistance to atmospheric corrosion, fresh water and many mild chemical environments. Its higher chromium content generally gives it better corrosion performance than AISI 201 in similar conditions.
It is suitable for indoor applications, food service equipment (non-critical), architectural components and general fabrication. It is not recommended for prolonged exposure to seawater, strong acids or severe chloride environments. For more demanding service, astm a240 type 316l stainless steel sheet plate or astm a240 type 904l stainless steel sheet plate should be considered.
Weldability
AISI 202 can be welded by common fusion and resistance welding methods. Matching or 308L-type filler metals are frequently used. Heat input should be controlled, and post-weld cleaning is recommended to restore surface corrosion resistance. For applications requiring maximum as-welded corrosion performance, many fabricators prefer astm a240 type 304l stainless steel sheet plate.
Heat Treatment
AISI 202 is supplied in the solution-annealed condition.
Recommended Solution Annealing Parameters
- Temperature range: 1010 – 1120°C
- Cooling: Rapid cooling (water quench preferred for thicker sections)
Proper annealing restores ductility after cold working and optimizes corrosion resistance.
Surface Finishes
| Finish | Description | Typical Use / Keywords |
|---|---|---|
| 2B | Cold-rolled, annealed, pickled, skin-passed | AISI 202 2B – most common for general fabrication |
| BA | Bright Annealed | AISI 202 BA – decorative and kitchen applications |
| No.1 | Hot-rolled, annealed and pickled | AISI 202 No.1 – industrial plate |
| No.4 | Brushed finish | AISI 202 No.4 – architectural surfaces |
| HL | Hairline finish | AISI 202 HL – decorative panels |
| Polished | Mirror or custom polish | AISI 202 Polished – high-end applications |
SHH STEEL regularly supplies AISI 202 in 2B and BA finishes. Other finishes can be provided according to project requirements. Related decorative options include astm a240 type 430 stainless steel sheet plate and astm a240 type 439 stainless steel sheet plate.
Tolerances
Dimensional tolerances for AISI 202 Stainless Steel Plate generally follow ASTM A480 practices.
Typical available size range:
- Thickness: 0.4 mm – 50 mm
- Width: up to 1500–2000 mm
- Length: up to 6000 mm or coil / cut-to-length
SHH STEEL provides precise dimensional control and can support tighter tolerances when required.
Equivalent Material Grades
| Grade / Designation | Standard / UNS | Notes |
|---|---|---|
| AISI 202 | — | — |
| UNS S20200 | — | Unified Numbering System |
| ASTM A240 Type 202 | ASTM A240 | When dual certified |
| SUS202 | JIS G4305 | Japanese equivalent |
| Related 202 grades | GB/T 3280 | Chinese equivalent |
Related grades for comparison include astm a240 type 201 stainless steel sheet plate, astm a240 type 304 stainless steel sheet plate, astm a240 type 304l stainless steel sheet plate, and astm a240 type 316l stainless steel sheet plate.
Applications
AISI 202 is widely used in cost-sensitive applications requiring good strength and formability. Typical applications include:
| Industry / Sector | Typical Components / Equipment |
|---|---|
| Kitchen & Food Equipment | Sinks, tabletops, kitchenware, food service equipment |
| Architecture & Decoration | Decorative panels, elevator interiors, cladding |
| Transportation | Bus and railway components |
| Household Appliances | Structural and formed parts |
| General Fabrication | Tanks, containers, frames and enclosures |
| Construction | Interior decorative and non-critical structural parts |
For related industry solutions, see our construction industry and equipment manufacturing pages. Fabrication support is available through steel cutting services and steel welding services.
Why Choose SHH STEEL
SHH STEEL is a China Mill Agent specializing in stainless steel plate and sheet. By working directly with major Chinese stainless steel mills, we supply AISI 202 with the following advantages:
- Genuine China Mill Agent / mill-direct pricing
- Consistent quality and complete heat traceability
- Full Mill Test Certificates (EN 10204 3.1)
- Flexible dimensions and surface finishes (including AISI 202 2B and AISI 202 BA)
- Technical support for material selection among 201, 202, 304 and 316 families
- Value-added services including steel cutting services, stainless surface finishing services and worldwide shipping service
FAQ
- What is the main difference between AISI 202 and AISI 304?AISI 202 has lower nickel and higher manganese content, resulting in higher strength and lower cost, but generally lower corrosion resistance than 304. SHH STEEL recommends 202 for cost-sensitive, mildly corrosive applications.
- How does AISI 202 compare with AISI 201?AISI 202 typically offers slightly better corrosion resistance and higher chromium content than 201, while remaining in the same economical 200-series family.
- Is AISI 202 magnetic?Non-magnetic in the annealed condition. It may become slightly magnetic after heavy cold working.
- What is the density of AISI 202?Approximately 7.80–7.85 g/cm³.
- Does SHH STEEL provide dual certification for AISI 202?Yes, dual certification is available upon request.
Conclusion
AISI 202 Stainless Steel Plate is an economical chromium-nickel-manganese austenitic stainless steel that offers higher strength than 304, good formability and a clear cost advantage. It is a practical choice for kitchen equipment, architectural components, transportation and general fabrication where the full corrosion performance of 304 is not required.
As a professional China Mill Agent, SHH STEEL supplies high-quality AISI 202 Stainless Steel Plate with genuine mill-direct pricing, full certification and reliable technical support.
Contact SHH STEEL today for stock availability, surface finish options (including AISI 202 2B and AISI 202 BA), processing services or a competitive quotation.
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