Duplex Stainless
Langley Alloys has been involved with Duplex Alloys from their Origins, Patenting the first fully wrought 25cr Duplex alloy over 40 years ago “FERRALIUM 255” and coined the expression “Super Duplex”.
Duplex Stainless Steel is at the heart of the Langley Alloys business, with Langley Alloys being the ONLY supplier today offering its customer the complete choice on Duplex, and Super Duplex grades, with stock in the following grades:
22cr Duplex: UNS 31803 (F51) and UNS 32205 (F60) SAF 2205.
25cr Super Duplex grades: UNS S32550 (F61), UNS S 32750 (F53) SAF 2507and UNS 32760 (F55)
| 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 |
||
ZERON 100 |
1.4501 |
ASTM A479/A182 UNS S32760, F55 |
750 [109] |
550 [79.8] |
25 |
||
SAF 2507 |
1.4410 |
ASTM A479/A182/ A240 UNS S32750, F53 |
800 [116] |
550 [79.8] |
15 |
||
SAF 2205 |
1.4462 |
ASTM A479/A182 UNS S31803, S32205, F51 (S31803), F60 (S32205) |
655 [95] |
485 [70] |
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 |
1.4507 |
ASTM A479/ A473, A182 UNS S32550, F61 |
760 [110.3] |
550 [79.9] |
25 |
||
Alloy 255 Aged Grade |
1.4507 |
ASTM A479/ A276/ A473, A182/A240 UNS S32550, F61, UNS S32520, UNS S39553 |
830 [120.3] |
570 [82.6] |
23 |
||
Alloy 255 Fastener Grade |
1.4507 |
A276 UNS S32550 Condition S |
860 [124.7] |
720 [104.4] |
16 |
||
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. Zeron is a registered Trade Mark of Wier Group. SAF is a registered Trade Mark of Sandvick