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
Alloy	Common Name	British	European	United States	Tensile Strength	Proof Stress	Elongation
FERRALIUM 255-SD50	Alloy 255 High Strength		1.4507	ASTM A479 /A276/A473, A182/A240 UNS S32550, F61, UNS S32520, UNS S39553	790 [114.5]	600 [87]	25
FERRALIUM 255-SD40	Alloy 255		1.4507	ASTM A479/ A276/ A473, A182/A240 UNS S32550, F61, UNS S32520, UNS S39553	760 [110.2]	550 [79.8]	25
FERRALIUM 255-3AF	Alloy 255 Aged Grade		Stami carbon 21022, 18005, 53961 MS47		860 [124.7]	570 [82.6]	23
FERRALIUM 255-FG46	Fastener Grade			ASTM A276 UNS S32550 Condition S	860 [124.7]	720 [104.4]	25-35
FERRALIUM 255-3SC	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

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