304 Stainless Steel
VerifiedmetalUNS S30400· AISI 304· 304· A2 stainless· 18-8 stainless
304 stainless steel is an austenitic iron-based alloy containing 18–20% chromium and 8–10.5% nickel, representing the most widely used stainless steel grade in industrial applications. It offers excellent corrosion resistance across a broad range of chemical environments and is readily weldable and formable, making it the default choice for applications requiring durability without specialized high-temperature or high-strength demands. Engineers select 304 over ferritic alternatives when corrosion performance is critical, and over duplex or precipitation-hardening grades when cost, ease of fabrication, and reliable room-temperature toughness are prioritized.
food processing equipmentchemical storage and pipingarchitectural cladding and trimmedical instrument shaftskitchen appliances and sinksgeneral industrial fasteners and hardware
Compliance & Regulations
?ISO 10993?Conflict Free?FDA?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Poisson's Ratio(ν) | — | - | — | — | |
Stress–Strain Curve(σ–ε) | Curve (11 pts) | ksi | 20°C | — | |
Yield Strength (0.2% offset)(σy) | — | ksi | — | — | |
Young's Modulus(E) | — | ksi | — | — | |
Young's Modulus vs Temperature(E(T)) | Curve (6 pts) | ksi | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Specific Heat Capacity(Cp) | — | BTU/(lb·°F) | — | — | |
Thermal Conductivity(k) | — | BTU/(hr·ft·°F) | — | — | |
Thermal Conductivity vs Temperature(k(T)) | Curve (6 pts) | BTU/(hr·ft·°F) | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | — | lb/in³ | — | — |
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.