Anti Rust stainless steel super duplex Tube ASTM A789 UNS S31803 Bright Annealed
Brand Name:SPEZILLA
Certification:ISO9001:2008
Model Number:UNS S31803
Minimum Order Quantity:Negotiation
Delivery Time:10 DAYS
Payment Terms:T/T or L/C
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Anti Rust stainless steel super duplex Tube ASTM A789 UNS S31803 Bright Annealed
UNS S31803 Duplex stainless steel welded tubeis a duplex
(austenitic-ferritic) stainless steel containing about 40 - 50%
ferrite in the annealed condition. 2205 has been a practical
solution to chloride stress corrosion cracking problems experienced
with 304/304L or 316/316L stainless. The high chromium, molybdenum
and nitrogen contents provide corrosion resistance superior to
316/316L and 317L stainless in most environments. S31803 is not
suggested for operating temperatures up to 600°F.
The design strength of 2205 is significantly higher than 316/316L,
often permitting lighter wall construction. 2205 has good notch
impact toughness down to temperatures below - 40°F. 2205 is welded
with E2209 or ER2209 fillers.
Chemistry of Duplex Stainless Steel Welded Tube:
| Ni | Cr | Mo | Mn | Si | C | N | S | P | Fe | |
|---|---|---|---|---|---|---|---|---|---|---|
| MIN | 4.5 | 22.0 | 3.0 | - | - | - | 0.14 | - | - | - |
| MAX | 6.5 | 23.0 | 3.5 | 2.0 | 1.0 | 0.03 | 0.2 | 0.02 | 0.03 | Balance |
Features:
1. High resistance to chloride stress corrosion cracking
2. Chloride pitting and crevice corrosion resistance superior to
317L stainless
3. Good general corrosion resistance
4. High strength
5. Good sulfide stress corrosion resistance
6. Useful up to 600°F
Applications:
1. Chemical process vessels, piping, and heat exchangers
2. FGD scrubber systems
3. Pulp mill digesters, bleach washers, chip presteaming vessels
4. Food process equipment
5. Oil field piping, heat exchangers
Specifications Duplex Stainless Steel Welded Tube:
| Stainless Steel & Nickel Alloy Tubing Specifications | |
| A 249/A 249M-04a | Standard Specification for Welded Austenitic Steel Boiler, Superheater, Heat Exchanger, and Condenser Tubes |
| A 268/A 268M-05a | Standard Specification for Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service |
| A 269-07 | Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service |
| A 270-03a | Standard Specification for Seamless and Welded Austenitic and Ferritic/Austenitic Stainless Steel Sanitary Tubing |
| A 450/A 450M-04a | Standard Specification for General Requirements for Carbon, Ferritic Alloy, and Austenitic Alloy Steel Tubes |
| A 554-03 | Standard Specification for Welded Stainless Steel Mechanical Tubing |
| A 789/A 789M-05b | Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service |
| A 1016/A 1016M-04a | Standard Specification for General Requirements for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stainless Steel Tubes |
| B 338-06a | Standard Specification for Seamless and Welded Titanium and Titanium Alloy Tubes for Condensers and Heat Exchangers |
| B 468-04 | Standard Specification for Welded UNS N08020, N08024, and N08026 Alloy Tubes |
| B 515-95 (2002) | Standard Specification for Welded UNS N08120, UNS N08800, UNS N08810, and UNS N08811 Alloy Tubes |
| B 516-03 | Standard Specification for Welded Nickel-Chromium-Iron Alloy (UNS N06600, UNS N06603, UNS N06025, and UNS N06045) Tubes |
| B 543-96 (2003) | Standard Specification for Welded Copper and Copper-Alloy Heat Exchanger Tube |
| B 552-98 (2004) | Standard Specification for Seamless and Welded Copper-Nickel Tubes for Water Desalting |
| B 626-06 | Standard Specification for Welded Nickel and Nickel-Cobalt Alloy Tube |
| B 674-05 | Standard Specification for UNS N08925, UNS N08354, and UNS N08926 Welded Tube |
| B 676-03 | Standard Specification for UNS N08367 Welded Tube |
| B 704-03 | Standard Specification for Welded UNS N06625, UNS N06219, and UNS N08825 Alloy Tubes |
| B 730-93 | Standard Specification for Welded Nickel (UNS N02200/UNS N02201) and Nickel Copper Alloy (UNS N04400) Tube |
| B 751-03 | Standard Specification for General Requirements for Nickel and Nickel Alloy Welded Tube |
Anti Rust stainless steel super duplex Tube ASTM A789 UNS S31803 Bright Annealed
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