Stainless Steel
Duplex Stainless Steel 31803/F51
Description:
Duplex stainless steel 22% chromium duplex (austenitic / ferritic) steel with moderate to good strength and good general corrosion/stress corrosion/cracking resistance.This alloy resists chloride environments and sulphide stress corrosion and is roughly double the strength of standard austenitic stainless steels. Alloy 31803/F51 can be used successfully as an alternative to 300 serious austenitic stainless steel in most applications where higher mechanical strength/lower weight is required.Alloy 31803/F51 is readily weldable using many of the standard electric arc welding processes but oxyacetylene welding is not recommended because carbon pickup in the weld metals may occur.
Typical applications: Pumps, valves, flanges, boat shafts, various applications in the oil & gas, chemical, power and brewing industries.
Available in dia bar stock from 1/2" to 16"
(other forms available on request)
Colour Code
| Steel Number | UNS | EN |
|---|---|---|
| 1.4462 | S31803 | 10088-3 |
| C | Si | Mn | P | S | N | Cr | Ni | Mo |
|---|---|---|---|---|---|---|---|---|
| .03 | 1.0 | 2.0 | .03 | .02 | .08-.2 | 21-23 | 4-6.5 | 2-3.5 |
For further technical information or additional sizes on this product or any other product or service please contact us.