0.09C 15.1Ni-1.2Mo Low Alloy Steel

metal

This is a low-alloy steel with unusually high nickel (15.1%) and molybdenum (1.2%) content, combined with significant titanium (~2.3%), placing it at the boundary between conventional structural steels and nickel-based alloys. The high nickel and molybdenum levels provide enhanced strength and corrosion resistance, while the low carbon content (0.09%) maintains weldability and toughness—making this composition suitable for applications requiring a balance of strength, ductility, and environmental durability. Commonly found in aerospace structures, high-strength fasteners, and subsea/offshore equipment where superior fatigue resistance and corrosion resistance in aggressive environments are critical; the titanium addition suggests optimization for specific precipitation-hardening behavior or improved fracture toughness at service temperatures.

aerospace structural componentshigh-strength fasteners and boltsoffshore/subsea equipmentturbine discs and casingspressure vessel construction

Compliance & Regulations

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

Units:

si imperial

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

Verified Unverified Low confidence (<80%) Link to source

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.