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Super Duplex Steel F55 (UNS S32760)

Technical Data Sheet


Chemical Composition Limits
Weight% C Mn P S Si Cr Ni Mo N W
Super Duplex F55 0.03 max 1.00 max 0.03 max 0.01 max 1 max 24-26 4.5-6.5 3-4 0.25 0.08-0.20

F55 Duplex is the most common super duplex grade it has an enhanced pitting and crevice corrosion resistance compared with the ordinary austenitic or duplex types.

Typical Mechanical Properties


Alloy Tensile Strength N/mm² Yield Strength 0.2% N/mm² Elongation
Hardness HB
Super Duplex F55 860 720 min 16 min 270 max

Super Duplex F55 is available in Bar from 6mm dia to 270mm dia and Forging Stock.   For all stock availability contact Sales.

ASTM A182 F55
ASTM A276 F55
ASTM A479 F55
WS 1.4501
UNS S32760
NACE MR01-75
PED 97/23/EC


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Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.