11Cr-2Ni Duplex Stainless

metal

11Cr-2Ni duplex stainless steel is a two-phase ferrite-austenite stainless steel combining moderate chromium content with controlled nickel and molybdenum additions, designed to balance corrosion resistance with mechanical strength. It finds application in moderately corrosive environments including chemical processing, seawater cooling systems, and desalination plants where standard austenitic stainless steels may suffer stress-corrosion cracking but full super-duplex grades are unnecessary. Engineers select this duplex grade when cost and ease of fabrication matter alongside the need for higher strength than 300-series austenitic steels and acceptable pitting resistance in chloride-bearing media.

seawater piping and heat exchangerschemical processing vesselsdesalination plant equipmentpressure equipment and pipeworkfasteners in corrosive servicecost-optimized duplex applications

Compliance & Regulations

?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property OverviewNormalized to typical max values

Property	Value	Unit	Conditions
Elongation at Break(εf)	17.80	-	—
Ultimate Tensile Strength(σUTS)	242	ksi	—
Yield Strength (0.2% offset)(σy)	186	ksi	—

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.

11Cr-2Ni Duplex Stainless

Mechanical Properties

Regulatory Screening

Environmental

Quality & Standards

Industry-Specific