UNS S31803, EN 1.4462 duplex stainless steel is designed to combine improved resistance to stress corrosion cracking, pitting, crevice corrosion and high strength when compared with other stainless alloys
Duplex UNS S31803, F51, 1.4462duplex alloy resists chloride environments and sulphide stress corrosion
Duplex UNS S31803, F51, 1.4462 is also roughly double the strength of standard austenitic stainless steels
These attributes mean that Duplex UNS S31803, F51, 1.4462 can be used successfully as an alternative to standard stainless steel specifications in applications where higher strength and resistance to stress corrosion cracking is required
ASME SA789/SA789M ( ASTMA789/A789M )
General use standard specification for seamless and Welded Ferritic / austenitic stainless steel tube
ASME SA790/SA790M ( ASTMA790/A790M )
Seamless and Welded Ferritic / austenitic stainless steel tube
1.Outer Diameter: 1/4" - 16"
2.Wall thickness:1 mm-50mm
3.Length: 6 metre or as per customer request
Chemical Composition
|
C |
Mn |
P |
S |
Cr |
Mo |
Si |
Ni |
N |
| S 31803 |
Min % |
|
|
|
|
21,00 |
2,50 |
|
4,50 |
0,08 |
| Max % |
0,030 |
2,00 |
0,030 |
0,020 |
23,00 |
3,50 |
1,00 |
6,50 |
0,20 |
| ASTM A 790 (S 31803) |
| 1.4462 |
Min % |
|
|
|
|
21,00 |
2,50 |
|
4,50 |
0,100 |
| Max % |
0,030 |
2,00 |
0,035 |
0,015 |
23,00 |
3,50 |
1,00 |
6,50 |
0,220 |
| (Key to steel 2010) |
Physical properties
Property |
Value |
| Density: kg/dm3 |
7,8 |
| Hardness: HB 30 |
<=270 |
Brinell
Hardness Rockwell C |
290 (S 31803-ASTM A 790)
30,5 (S 31803-ASTM A 790)
|
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