When a refinery’s incinerator and superheater components repeatedly failed due to scale breakdown and thermal corrosion, the switch to Haynes 214 Round Bars delivered the breakthrough. Saving costs, boosting uptime, and impressing engineers from chemical, oil & gas, marine, pharma, and power sectors Haynes 214 stands where conventional nickel alloys cannot, enduring 1750°F (955°C) and beyond, outperforming legacy grades in the harshest oxidation settings.
Table of Contents:
Haynes 214 (UNS N07214, DIN 2.4646) is a high-nickel, chromium, aluminum, and iron alloy renowned for its unrivaled oxidation/corrosion resistance at extreme temperatures. Its exclusive Al₂O₃ oxide “scale” resists even chlorine-laden and carburizing environments, while easy forming, welding, and consistent performance are proven in heat-treating, petrochemical, and gas turbine applications. Next-generation incinerator internals, burner cups, and honeycomb seals rely on 214 more than any other alloy for endurance and safety.
Haynes 214 round bars are available in diameters from 10mm to 350mm (custom sizes on request), finished bright, rough-turned, or sand-blasted to suit every process. Meeting the Haynes International mill specification for UNS N07214 and DIN 2.4646 with traceable lot certificates, these bars empower hardware stores, OEMs, and maintenance teams for fast, reliable supply with fully documented mill test certification.
For buyers who need affordable, best quality, and trusted supply chains for high-temp environments, Haynes 214 Round Bars and Inconel 718 Round Bars are available from global stockists, serving chemical, marine, oil & gas, pharma, and power generation industries everywhere.
High-quality Haynes 214 Round Bars ready for industrial use.
Specification Overview
| Grade | Haynes 214 (UNS N07214, DIN 2.4646) |
|---|---|
| Standards | Haynes International mill specification for UNS N07214, DIN 2.4646 |
| Diameter Range | 10mm – 350mm |
| Length | 1000mm – 5000mm (custom available) |
| Finish | Bright, polished, rough-turned, sand-blasted |
| Delivery | Full MTC, export packaging, traceable lots |
| Price | INR 5,000 – 15,000 per kg. Indicative USD 60 – 175 per kg; quoted against grade, form, size and quantity. |
Equivalent Grades & Standards
| Property | Value |
|---|---|
| UNS number | N07214 |
| Melting range | 1355-1400 °C |
| Electrical resistivity | 135.9 µΩ·cm |
| Thermal diffusivity | 0.0336 cm²/s |
| Thermal conductivity | 12.0 W/m·°C |
| Specific heat | 452 J/kg·°C |
| Coefficient of expansion (25-200 °C) | 13.3 µm/m·°C |
| Dynamic modulus of elasticity | 218 GPa |
| Rod and bar specification | Mill specification |
Identifiers and physical constants for Haynes 214. A dash means no such designation is published for this grade.
Stock & Product Availability
Haynes 214 round bars are globally stocked in core and custom sizes, available for rapid supply to chemical plants, marine maintenance, energy, pharma, and hardware sectors when urgent uptime matters.
Chemical Composition
| Element | Min (%) | Max (%) |
|---|---|---|
| Nickel (Ni) | — | Balance (75 nominal) |
| Chromium (Cr) | 16 nominal | |
| Aluminium (Al) | 4.5 nominal | |
| Iron (Fe) | 3 nominal | |
| Cobalt (Co) | — | 2 |
| Manganese (Mn) | — | 0.5 |
| Molybdenum (Mo) | — | 0.5 |
| Titanium (Ti) | — | 0.5 |
| Tungsten (W) | — | 0.5 |
| Niobium (Nb) | — | 0.15 |
| Silicon (Si) | — | 0.2 |
| Zirconium (Zr) | — | 0.1 |
| Carbon (C) | 0.04 nominal | |
| Boron (B) | — | 0.01 |
| Yttrium (Y) | 0.01 nominal | |
Composition for Haynes 214. Figures given as a range or a maximum are limits and those marked nominal are not; none of them are measured values for a lot; the mill test certificate supplied with your order states the actual analysis.
Mechanical & Physical Properties
| Property | Typical Value |
|---|---|
| Density (g/cm³) | 8.05 |
| Tensile Strength (MPa) | 760 (annealed) |
| Yield Strength (0.2%, MPa) | 415 (annealed) |
| Elongation (%) | 40 min |
| Hardness (HB) | 190 – 240 |
| Max. Service Temp (°C) | Up to 1315 |
Applications & Benefits
Why this grade
Haynes® 214 carries about 4.5% aluminium, so it forms an alumina scale rather than a chromia one. That gives oxidation resistance to roughly 1200°C, the highest in the Haynes high-temperature range, but it is a thin-section alloy — honeycomb seals, foil and catalytic converter substrates — rather than a load-bearing structural one.
- Chemical: reactors, incinerator internals, refinery seals.
- Marine: superheater tubes, engine splash plates, saltwater heat exchangers.
- Oil & Gas: gas turbine combustor plates, static seals.
- Pharma: high purity oxidation systems, sterilizer rods.
- Power Generation: honeycomb seals, static oxidation-limited parts.
- Hardware/OEM: radiant furnace tubes, basket foils, high-temp bolting.
FAQ & Search Trends
Global Export Destinations
We ship worldwide from Mumbai. See every destination we export to on our export markets page.
Domestic Supply Network Across India
We deliver across India from our Mumbai stockyard. See every city we supply on our supply locations page.
Conclusion
Haynes 214 Round Bars deliver lasting reliability, weldability, and best-in-class oxidation resistance for hardware, chemical, marine, energy, and oil sectors. Are your plants protected by the definitive alloy for extreme temperature/corrosion service?