Bright Annealed ASTM 789 UNS S31803 Stainless Duplex Steel Tube
Bright Annealed ASTM 789 UNS S31803 Stainless Duplex Steel Tube
Duplex Steel Tube:
Duplex steels have a mixed microstructure with about equal proportions of ferrite and austenite. Duplex stainless steels are a family of grades, which range in corrosion performance depending on their alloy content.
Duplex Steel Tube Basic Information:
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Item |
Description |
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|
Basic Information |
Material Grade |
S32205 , S31803 , S32304 , S32750 , F51 , F53 , 2205 , 2507 etc |
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Outer Diameter |
3.18mm - 101.6mm |
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|
Wall Thickness |
0.5mm - 20mm |
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Length |
Normally fixed length 6m , can as per customer’s requirement |
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Standard |
ASTM A789 ; ASTM A790 ; EN 10216-5 ect . |
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Process Method |
Cold Drawn or Cold Rolled |
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Duplex Steel Tube Terms & Conditions :
1 . Price Term : FOB , CFR , CIF or as negotiation
2 . Payment : T / T , L / C or as negotiation
3 . Delivery time : 30 working days after received your deposit ( Normally according to the order quantity )
4 . Package : Iron case ; woven bag or as per customer’s requirement
5 . Quality Requirement : Mill Test Certificate will be supplied with shipment , Third Part Inspection is acceptable
Duplex Steel Tube Chemical Composition:
| UNS Designation | C | Si | Mn | P | S | Cr | Ni | Mo | N | Cu |
| max | max | max | max | max | ||||||
| S31803 | 0.03 | 1 | 2 | 0.03 | 0.02 | 21.0 - 23.0 | 4.5 - 6.5 | 2.5 - 3.5 | 0.08 - 0.20 | - |
| S32205 | 0.03 | 1 | 2 | 0.03 | 0.02 | 22.0 - 23.0 | 4.5 - 6.5 | 3.0 - 3.5 | 0.14 - 0.20 | - |
| S32750 | 0.03 | 0.8 | 1.2 | 0.035 | 0.02 | 24.0 - 26.0 | 6.0 - 8.0 | 3.0 - 5.0 | 0.24 - 0.32 | 0.5 max |
| S32760 | 0.05 | 1 | 1 | 0.03 | 0.01 | 24.0 - 26.0 | 6.0 - 8.0 | 3.0 - 4.0 | 0.20 - 0.30 | 0.50 -1.00 |

serving customers from more than 100 countries and regions.
What products can MTSCO provide?
Austenitic: 304/L/H/N,316/L/H/N/Ti,321/H,309/H,310S,347/H,317/L904L
Duplex steel: 31803,32205,32750,32760
Nickel Alloy:
UNS N10001, N10665, N10675, N06455, N06022, N10276, N06200, N06035, N06030, N06635, N10003, N06002, R30188, N06230,
R30556
UNS N06600, N06601, N06617, N06625, N07718, N07750, N08800, N08810, N08811, N08825, N09925, N08926
UNS N04400, N05500
Precipitation-hardening Steels: 254SMO/S31254, 17-4PH, 17-7PH, 15-7PH
Nickel: N4/UNS N02201, N6/UNS N02200


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