13Cr-2Ni Duplex Stainless (var. 4)

metal

13Cr-2Ni duplex stainless steel (variant 4) is a lean duplex stainless steel combining a ferritic-austenitic microstructure with moderate chromium and nickel alloying, plus vanadium and molybdenum for strength and corrosion resistance. This alloy targets applications requiring a balance between cost efficiency and corrosion resistance in mildly aggressive environments, offering better mechanical properties than ferritic grades while using less nickel than standard 2205 duplex steels. It is typically selected for moderately corrosive service in pumps, valves, fasteners, and pressure vessels where both strength and material economy matter—particularly in oil & gas, water treatment, and chemical processing where chloride environments are present but not extreme.

oil & gas equipmentchemical processing vesselsseawater cooling systemsfasteners and boltspump and valve bodieswater treatment infrastructure

Compliance & Regulations

?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Elongation at Break(εf)
—
-——
Ultimate Tensile Strength(σUTS)
—
Pa——
Yield Strength (0.2% offset)(σy)
—
Pa——
Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

Quality & Standards

Industry-Specific

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.