Duplex Stainless Steel Pipe , ASTM A790 UNS S31803 F51 With Pickled
Surface
Duplex stainless steel that was developed to combat common
corrosion problems encountered with the 300 series
stainless steels . “ Duplex ” describes a family of stainless
steels that are neither fully austenitic , like 304 stainless , nor
purely ferritic , like 430 stainless . The advantage of a duplex
structure is that it combines the favorable qualities of a ferritic
alloy ( stress corrosion cracking resistance and high strength )
with those of an austenitic alloy ( ease of fabrication and
corrosion resistance ) .
| UNS Designation | C | Si | Mn | P | S | Cr | Ni | Mo | N | Cu |
| max | max | max | max | max |
| S31803 ( F51 ) | 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 ( F60 ) | 0.03 | 1 | 2 | 0.03 | 0.02 | 22.0 - 23.0 | 4.5 - 6.5 | 3.0 - 3.5 | 0.14 - 0.20 | - |
Description :
1 . Outer Diameter : 10.3mm - 1219mm Material Grade : S32205 ,
S31803 , S32304 , S32750, F51 , F53 , F55 , F61 , 2205 , 2507 Etc
2 . Wall Thickness : 1.24mm - 59.54mm
3 . Length : As per customer’s requirement
4 . Standard : ASTM A789 ; ASTM A790 ; EN 10216-5ect .
| Industry & Advantage | Application | a) Petroleum |
| b) Chemical industry |
| c) Instrument |
| d) Industrial transportation |
| e) Mechanical structure industry |
| f) Need high corrision ability pipe's industry, such as offshore
industry etc |
| Advantages | a) Superior surface finish, |
| b) Better mechanical property |
| c) More precise dimension |
| d) Perfect inspection method and inspection equipment |
| Terms & Conditions | Price Item | FOB, CFR, CIF or as negotiation |
| Payment | T/T, LC or as negotiation |
| Delivery Time | 30 working days after received your deposit (Normally according to
the order quantity) |
| Package | Iron case; woven bag or as per customer’s requirement |
| Quality Requirement | Mill Test Certificate will be supplied with shipment, Third Part
Inspection is acceptable |
| Quality | Test | NTD(Ultrasonic test, Eddy Current test); |
| Mechanical Test(Tension Test, Flaring Test, Flattening Test,
Hardness Test, Hydraulic test); |
| Metal Test(Metallographic Analysis, Impact Test-High/low
temperature); |
| Chemical Analysis(Photoelectric Emission Spectroscopic) |
| Market | Main Market | Europe, Middle East, Southeast Asia, South America. etc |
