11Cr-7Ni-3.3Mo Stainless

metal

11Cr-7Ni-3.3Mo is a martensitic stainless steel alloyed with cobalt and molybdenum, designed to achieve high strength while maintaining corrosion resistance. This material is used in demanding aerospace and defense applications—particularly jet engine components, landing gear, and fasteners—where the combination of strength, fatigue resistance, and corrosion protection in harsh environments justifies its cost and processing complexity. Engineers select this alloy over conventional martensitic stainless steels when applications require superior strength-to-weight ratios and resistance to both mechanical loading and corrosive service conditions, such as saltwater or high-temperature oxidizing environments.

jet engine compressor bladesaerospace fastenerslanding gearhigh-strength bearingschemical processing equipmentmilitary ordnance

Compliance & Regulations

?ISO 10993?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property OverviewNormalized to typical max values

Property	Value	Unit	Conditions
Elongation at Break(εf)	11.40	-	—
Ultimate Tensile Strength(σUTS)	1.640	GPa	—
Yield Strength (0.2% offset)(σy)	1.374	GPa	—

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Regulatory Screening

Environmental

Safety & Biocompatibility

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.