Duplex Steel F51 (UNS S31803) / F60 (UNS 32205)

Technical Data Sheet


Chemical Composition Limits
Weight% C Mn P S Si Cr Ni Mo N
Duplex F51 0.03 max 2.0 max 0.03 max 0.02 max 1 max 21-23 4.5-6.5 2.5-3.5 0.80-0.20

F51 Duplex Stainless Steel combines improved resistance to stress corrosion cracking, pitting, crevice corrosion and high strength. Due to it's chemical composition F51 duplex stainless steel resists chloride environments and sulphide stress corrosion. 

Typical Mechanical Properties


Alloy Tensile Strength N/mm² Proof Strength 0.2% N/mm² Elongation (%)
Hardness Brinell
F51 105 55 35 170-255
F51 95 50 35 170-255

Duplex F51 is available in Plate, Sheet, Round Bar, Flat Bar and Forging Stock for sizes contact Sales.

ASTM A182 F51 / F60
ASTM A276 F51 / F60
ASTM A479 F51
BS 318S13 (Wrought)
BS 332C15 (Cast)
WS 1.4462
WS 1.4470
UNS S31803
UNS S32205
SAF2205 - SANMAC (Brand name)
URANUS 45N (Brand name)
FALC223 (Brand name)


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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.