0.09C 17.1Ni-0.2Mo Low Alloy Steel

metal

This is a low-alloy maraging steel, a class of high-strength iron-nickel alloys hardened primarily through precipitation of intermetallic phases rather than carbon content. The high nickel content (17.1%) combined with molybdenum and trace titanium enables this steel to achieve very high strength levels with superior toughness and fatigue resistance compared to conventional carbon steels. Maraging steels are widely used in aerospace and defense applications where critical components require exceptional strength-to-weight ratios, dimensional stability during hardening, and reliable performance under cyclic loading and impact conditions.

aerospace structural componentsmissile casings and rocket bodieslanding gear and actuatorshigh-performance tooling and diesdefense ordnance applicationsfatigue-critical fasteners

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)	9.000	-	—
Ultimate Tensile Strength(σUTS)	257.9	ksi	—
Yield Strength (0.2% offset)(σy)	242.9	ksi	—

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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.