FERRALIUM 255 ALLOYS
FERRALIUM 255 SD50 Our latest and Highest performing Super Duplex has a long and distinguished pedigree from its origins as the first fully wrought 25cr Duplex over 40 years ago, being credited with coining the expression “Super Duplex”. Today Langley Alloys are offering FERRALIUM 255 SD50 with industry leading Mechanical Properties 10 % above other grades, coupled with improved Corrosion Resistance exceeding the benchmark set by NORSOK for Super Duplex’s.
| Alloy | Common Name | Related Specifications | Tensile Strength | Proof Stress | Elongation | ||
|---|---|---|---|---|---|---|---|
British |
European |
United States |
|||||
Alloy 255 High Strength |
1.4507 |
ASTM A479 /A276/A473, A182/A240 UNS S32550, F61, UNS S32520, UNS S39553 |
790 [114.5] |
600 |
25 |
||
Alloy 255 |
1.4507 |
ASTM A479/ A276/ A473, A182/A240 UNS S32550, F61, UNS S32520, UNS S39553 |
760 [110.2] |
550 [79.8] |
25 |
||
Alloy 255 Aged Grade |
Stami carbon 21022, 18005, 53961 MS47 |
860 [124.7] |
570 [82.6] |
23 |
|||
Fastener Grade |
ASTM A276 UNS S32550 Condition S |
860 [124.7] |
720 [104.4] |
25-35 |
|||
Alloy 255 Cast Grade |
1.4507 |
ASTM A890 UNS J93373 CD3MCuN Grade 1C |
700 [101.5] |
450 [65.3] |
25 |
||
FERRALIUM® is a registered Trade Mark of Langley Alloys Ltd


