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[China]
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Address: No.283-1, Youyi Middle Road, Xishan District, Wuxi City, Jiangsu Province
Contact name:Gao
JIANGSU MITTEL STEEL INDUSTRIAL LIMITED |
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TISCO Stainless Steel Plate Grade 2205 Duplex Stainless Steel 1.4462 / S31803 ASTM A240
Specification of our 2205 duplex stainless steel plate
| Product Name | duplex 2205 Stainless Steel Plate/Sheet |
| Technical Standard | JIS,AISI, ASTM,GB,DIN,EN |
| Steel Grade | 2205 / S32205 / S31803 / 1.4462 |
| Type | Stainless steel sheet/ plate/coil |
| Thickness | Cold rolled:0.4~3.0mm |
| Hot rolled:3mm~100mm | |
| Width | 1000mm 1219mm 1500mm 2000mm or custom cutting as request |
| Length | custom as clients request |
| Surface | NO.1 2B or process other finishing |
| QualityCertificate | Mill Test Certificate |
| Package | Water proof paper is inner packing,galvanized steel or coated steel sheet is outer packing , side guard plate,then wrapped by seven steel belt.or according to customer's requirement |
| Trade term | FOB CIF CFR |
| Loading port | Shanghai Port, China |
| Other Products | Pipe / Bar / Strip / angle / channel |
Mechanical Property | Value |
|---|---|
| Proof Stress | 450 Min MPa |
| Tensile Strength | 620 Min MPa |
| Elongation | 25 Min % |
| Hardness Brinell | 290 Max HB |
Grade | Tensile Strength ksi (min) | Yield Strength 0.2% ksi (min) | Elongation % | Hardness (HB) MAX |
2205 | 90 | 65 | 25 | 217 |
Chemical Composition of duplex 2205 stainless steel
Chemical Element | % Present |
|---|---|
| Carbon (C) | 0.0 - 0.03 |
| Chromium (Cr) | 21.00 - 23.00 |
| Manganese (Mn) | 2.00 max |
| Silicon (Si) | 1.00 max |
| Phosphorous (P) | 0.0 - 0.03 |
| Sulphur (S) | 0.0 - 0.02 |
| Nickel (Ni) | 4.50 - 6.50 |
| Nitrogen (N) | 0.08 - 0.20 |
| Molybdenum (Mo) | 2.50 - 3.50 |
| Iron (Fe) | Balance |
Physical Property | Value |
|---|---|
| Density | 7.805 g/cm³ |
| Thermal Expansion | 13.7 x10^-6 /K |
| Modulus of Elasticity | 200 GPa |
| Thermal Conductivity | 19.0 W/m.K |
| Electrical Resistivity | 0.085 x10^-6 Ω .m |
Grade 1.4462/2205 is similar to:
UNS S31803
UNS S32205
BS 318S13
Corrosion Resistance
Duplex stainless steels are extremely corrosion resistant. They have high resistance to intergranular corrosion. Even in chloride and sulphide environments, duplex stainless steels exhibit very high resistance to stress corrosion cracking.
The super duplex grades are even more resistant to corrosion.
Heat Resistance
The high chromium content of duplex stainless steels that protects against corrosion, causes embrittlement at temperatures over about 300°C.
At low temperatures duplex stainless steels have better ductility than the ferritic and martensitic grades. Duplex grades can readily be used down to at least -50°C.
Fabrication
Fabrication of all stainless steels should be done only with tools dedicated to stainless steel materials. Tooling and work surfaces must be thoroughly cleaned before use. These precautions are necessary to avoid cross contamination of stainless steel by easily corroded metals that may discolour the surface of the fabricated product.
Machinability
Although machinable, the high strengths of duplex stainless steels makes machining difficult. As an example, machining of 2205 is around 20% slower than for 304.
Machining can be enhanced by using the following rules:
~ Cutting edges must be kept sharp. Dull edges cause excess work hardening.
~ Cuts should be light but deep enough to prevent work hardening by riding on the surface of the material.
~ Chip breakers should be employed to assist in ensuring swarf remains clear of the work
~ Low thermal conductivity of austenitic alloys results in heat concentrating at the cutting edges. This means coolants and lubricants are necessary and must be used in large quantities.
Heat Treatment
Duplex stainless steels cannot be hardened by heat treatment. They can however be work hardened.
Solution treatment or annealing can be done by rapid cooling after heating to around 1100°C.
Weldability
Duplex stainless steels have good weldability. All standard welding processes can be used. They are not quite as easily welded as the austenitic grades but low thermal expansion in duplex grades reduces distortion and residual stresses after welding. The recommended filler material for 2205 stainless steel is 2209.
