0.05C 5.1Cr-1.9Mo-11.7Ni Low Alloy Steel

metal

This is a high-nickel low-alloy steel combining modest carbon content (~0.05%) with significant chromium (5.1%), molybdenum (1.9%), and nickel (11.7%) additions, along with aluminum for precipitation strengthening. The composition targets enhanced corrosion resistance, toughness, and thermal stability—characteristic of aerospace-grade structural steels or maraging-class alloys used in demanding environments requiring both strength and environmental durability. Its balanced alloying strategy makes it suitable for high-performance applications where traditional carbon steels would degrade, and it offers a middle ground between conventional quenched-and-tempered steels and more expensive stainless or superalloys.

aerospace fasteners and landing gearhelicopter rotor systemshigh-strength pressure vesselssubsea and marine structural componentscold-climate or corrosive-environment machinerymilitary/defense structural applications

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)	15.00	-	—
Ultimate Tensile Strength(σUTS)	1.414	GPa	—
Yield Strength (0.2% offset)(σy)	1.390	GPa	—

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.