1.78C 8.0Cr-3.4Mo Low Alloy Steel
metalA high-carbon tool steel containing substantial chromium (8.0%) and molybdenum (3.4%) alloying elements, designed to achieve exceptional hardness and wear resistance through heat treatment. This composition—with ~1.78% carbon and significant cobalt addition (~4.66%)—positions it in the premium tool steel family, engineered for applications demanding extreme hardness, dimensional stability, and edge retention under demanding conditions. Compared to conventional tool steels, the molybdenum and chromium combination enhances toughness and corrosion resistance while maintaining the high hardness needed for cutting, forming, and gauging operations.
precision cutting toolsdie stamping and formingprecision gauges and measurementwear-resistant componentshigh-hardness bearing racescold-work tooling
Compliance & Regulations
?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Elongation at Break(εf) | — | - | — | — | |
Ultimate Tensile Strength(σUTS) | — | Pa | — | — | |
Yield Strength (0.2% offset)(σy) | — | Pa | — | — |
Verified Unverified Low confidence (<80%) Link to source
Regulatory Screening
Environmental
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.