0.09C 5.4Cr-1.8Mo-11.8Ni Low Alloy Steel

metal

This is a low-alloy, nickel-chromium-molybdenum steel engineered for high-strength structural applications requiring good fracture toughness and fatigue resistance at moderate temperatures. The high nickel content (11.8%) combined with chromium and molybdenum additions provides exceptional hardenability and through-hardening capability, making this alloy suitable for large or thick-section components where uniform strength is critical. This material family is commonly encountered in aerospace fasteners, landing gear components, and heavy-duty industrial machinery where the combination of strength and damage tolerance is essential, and where alternatives like martensitic stainless steels or precipitation-hardening alloys would be less suitable.

aerospace landing gearhigh-strength fastenersheavy machinery shaftsmilitary ordnance componentsthick-section structural forgingsfatigue-critical industrial equipment

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)	—	Pa	—	—
Yield Strength (0.2% offset)(σy)	—	Pa	—	—

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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.