2205 Duplex stainles steel sheets ASTM A240 UNS S31803 overview
Combining many of the beneficial properties of both ferritic and austenitic steels, 2205 is the most widely used duplex stainless steel grade. Its high chromium and molybdenum content gives the stainless steel excellent corrosion resistance. The microstructure provides resistance to stress corrosion cracking and ensures high strength.
The grade is generally not suitable for use at temperatures above 300 C or below -50oC because of reduced toughness outside this range.
You are most likely to encounter 2205 stainless steel being used in industrial environments such as petrochemical, chemical, oil, gas and paper plants.
Alternative Grades
2205 has been available for several years - in general this complies with UNS grade designation S31803. More recently, product has become available complying with the higher corrosion resistant composition UNS S32205, as in table 1. Both these alternatives are known as 2205.
Produc Forms : Sheet, plate , Coil , Strip .wire , Pipe, Tube ,Bar , Profile, Round, Flat, Square, Hexagonal
2205 Duplex stainles steel sheets ASTM A240 UNS S31803 Specification and Dimension Ranges
Duplex 2205 Specification
Properties of material 2205
- ASTM A 182, A 240, A 276, A 789, A 790, A 815
- UNS S31803, S32205
- NACE MR0175
| 2205 stainless steel grades | Industry Specifications | UNS |
Duplex 2205 22Cr | ASME SA-182 (F60), SA-240, SA-798, SA-790, SA-815 ASTM A182 (F60), A240, A276, A479, A480, A798, A790, A815, A928, A988 SAE J405 | UNS S32205 |
Duplex 2205 22Cr | ASME SA-182 (F51), SA-240, SA-798, SA-790, SA-815 ASTM A182 (F51),A240, A276, A479, A789, A790, A815, A928, A988 SAE J405 | UNS S3180 |
Dimension Ranges:
Width: 600mm~2030 mm
Thickness: 2~120.0 mm
Length: 300~6000 mm , Max 18000 mm
Surface Finish: No.1, 2B, BA, No.3, No.4, No.5, No.8, HL, Etching, SB, Ti-coating,color-coating ,embossing .
2205 Duplex stainles steel sheets ASTM A240 UNS S31803 Application
- Oil and gas exploration
- Processing equipment
- Transport, storage and chemical processing
- High chloride and marine environments
- Paper machines, liquor tanks, pulp and paper digesters
2205 Duplex stainles steel sheet ASTM A240 UNS S31803 Equivalent
AISI 2205 equivalents |
| ASTM A182 Grade F51 | DIN 1.4462 |
| ASTM A182 Grade F60 | DIN 22-5-3 |
| ASTM A240 Grade S31803 | DIN S31803 |
| ASTM A240 Grade S32205 | DIN X2CrNiMoN22-5-3 |
| ASTM A270 Grade S31803 | AFNOR Z3CND22-05Az |
| ASTM A270 Grade S32205 | BS 318S13 |
| ASTM A276 Grade S31803 | SS 2377 |
| ASTM A479 Grade S31803 | AISI S31803 |
| ASTM A479 Grade S32205 | AISI S32205 |
| ASTM A789 Grade S31803 | SAE 2205 |
| ASTM A789 Grade S32205 | SAE S31803 |
| ASTM A790 Grade S31803 | SAE S32205 |
| ASTM A790 Grade S32205 | JIS SUS329J3L |
| ASTM A815 Grade S31803 | JIS SUS329J3LTP |
| ASTM A815 Grade S32205 | JIS SUS329J3LTB |
| ASTM A949 Grade S31803 | EN X2CrNiMoN22-5-3 |
| ASTM A955 Grade S31803 | EN 1.4462 |
| ASTM A959 Grade S31803 | ISO 4462-318-03-I |
| ASTM A959 Grade S32205 | GOST 02Ch22N5AM2 |
| ASTM A988 Grade S31803 | GB 022Cr22Ni5Mo3N |
| ASTM A988 Grade 22Cr5.5Ni | UNS S31803 |
| ASTM A988 Grade S32205 | UNS S32205 |
| ASTM A988 Grade 22Cr5.5Ni | |
2205 Duplex stainles steel sheets ASTM A240 UNS S31803 Technical datasheet
22 Cr Steel Mechanical Properties
| Ultimate Tensile Strength, ksi Minimum | Hardness Max. | .2% Yield Strength, ksi Minimum |
| 95 | 31 Rockwell C | 65 |
| Physical Properties | Inox Value |
| Duplex Type 2205 Specific Heat Capacity at 212°F | 0.119 Btu/lb/°F |
| Avesta 2205 Poisson’s Ratio | 0.3 |
| Thermal Expansion / Thermal Conductivity at 212°F | 8.4 Btu/hr-ft-°F |
| Density: | 0.278 lb/in3 |
| Werkstoff 1.4462 Elastic Modulus at 72°F | 29 x 10 psi |
| Melting Range: | 2525-2630°F |
Duplex 2205 Composition
| Cr | Ni | Mo | C | N | Mn | Si | P | S | Fe |
| 22.0-23.0 | 4.50-6.50 | 3.00-3.50 | .030 Max | 0.14-0.20 | 2.00 Max | 1.00 Max | .030 Max | .020 Max | Balance |
2205 Duplex stainles steel sheets ASTM A240 UNS S31803 Products display and Package Details



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