In a petrochemical reformer project notorious for rapid scaling, thermal cycling, and aggressive carburization, a switch to Haynes 230 Round Bars prevented $1M+ annual losses in downtime and parts. Chosen by engineers and procurement heads for projects across chemical, oil & gas, marine, pharma, and power sectors, Haynes 230 sets the benchmark for proven uptime, certified composition, and reliable strength at temperatures and environments where other alloys fail.
Table of Contents:
Haynes 230 (UNS N06230, DIN 2.4733) is a nickel-chromium-tungsten-molybdenum alloy with exceptional oxidation, carburization, and high temperature cycling resistance. It combines solid-solution strengthening with good formability and weldability, retaining mechanical properties up to 1150°C (2102°F). Tungsten and molybdenum ensure toughness at high temperatures, while its unique composition allows performance that stainless steels and general nickel alloys cannot match.
Haynes 230 round bars are available in diameters from 10mm to 350mm, in bright, polished, rough-turned, or sand-blasted finish as per ASTM B572 and DIN 2.4733. Supplies include full lot traceability and mill test certificates, with global distribution for hardware stores, chemical plants, OEMs, and urgent maintenance needs. Stockists also offer Haynes 230 Round Bars and Inconel 718 Round Bars for projects demanding certified quality and value.
For chemical, energy, and marine plants requiring durability, reliability, and value, Haynes 230 is a clear leader capable of outlasting stainless and legacy nickel alloys by a factor of 100 in some environments. Lower thermal expansion and superior weldability mean easier fabrication and longer plant lifecycle.
High-quality Haynes 230 Round Bars ready for industrial use.
Specification Overview
| Grade | Haynes 230 (UNS N06230, DIN 2.4733) |
|---|---|
| Standards | ASTM B572, DIN 2.4733, ISO NW06230 |
| Diameter Range | 10mm – 350mm |
| Length | 1000mm – 6000mm (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 | N06230 |
| Werkstoff / EN number | 2.4733 |
| EN designation | NiCr22W14Mo |
| Density | 8.97 g/cm3 |
| Melting range | 1301-1371 °C |
| Electrical resistivity | 125.0 µΩ·cm |
| Thermal diffusivity | 0.0242 cm²/s |
| Thermal conductivity | 8.9 W/m·°C |
| Specific heat | 397 J/kg·°C |
| Coefficient of expansion (25-100 °C) | 11.8 µm/m·°C |
| Dynamic modulus of elasticity | 209 GPa |
| Modulus of rigidity (dynamic) | 79 GPa |
| Poisson's ratio | 0.31 |
| Rod and bar specification | ASTM B572 |
Identifiers and physical constants for Haynes 230. A dash means no such designation is published for this grade.
Stock & Product Availability
Haynes 230 round bars are inventoried worldwide, supplied to chemical, oil & gas, marine, energy, and hardware sectors with rapid delivery, common and custom dimensions, and certified traceability for immediate shutdowns or new builds.
Chemical Composition
| Element | Min (%) | Max (%) |
|---|---|---|
| Carbon (C) | 0.05 | 0.15 |
| Manganese (Mn) | 0.30 | 1.00 |
| Silicon (Si) | 0.25 | 0.75 |
| Phosphorus (P) | — | 0.030 |
| Sulfur (S) | — | 0.015 |
| Chromium (Cr) | 20.00 | 24.00 |
| Molybdenum (Mo) | 1.00 | 3.00 |
| Tungsten (W) | 13.00 | 15.00 |
| Aluminium (Al) | 0.20 | 0.50 |
| Lanthanum (La) | 0.005 | 0.05 |
| Cobalt (Co) | — | 5.00 |
| Titanium (Ti) | — | 0.10 |
| Boron (B) | — | 0.015 |
| Iron (Fe) | — | 3.00 |
| Copper (Cu) | — | 0.50 |
| Nickel (Ni) | — | Balance |
Composition limits for Haynes 230. These are specification limits for the grade, not measured values for a lot; the mill test certificate supplied with your order states the actual analysis.
Mechanical & Physical Properties
| Property | Typical Value |
|---|---|
| Tensile Strength (MPa) | 758 – 896 |
| Yield Strength (0.2%, MPa) | 345 – 483 |
| Elongation (%) | 35 – 45 |
| Hardness (HB) | 241 max |
| Max. Service Temp (°C) | up to 1150 |
Applications & Benefits
Why this grade
Haynes® 230 is a nickel-chromium-tungsten-molybdenum alloy with a lanthanum addition. It is the all-round choice in the range, combining creep strength and oxidation resistance to about 1150°C with the thermal stability and fabricability that older alloys such as Hastelloy X do not have, plus useful resistance to nitriding atmospheres.
- Chemical: reformer grids, catalyst supports, heat exchangers, ammonia burners.
- Marine: superheater tubes, splash plates, engine aftercooler frames.
- Oil & Gas: combustion cans, transition ducts, static seals.
- Pharma: high purity thermal reactor rods, furnace trays.
- Power Generation: turbine internals, thermocouple rods, grates, trays, bellows.
- Hardware/OEM: industrial furnace fixtures, heat-treating baskets, cycling damper blades .
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 230 Round Bars provide unmatched performance, reliability, and documented quality for process, marine, energy, and hardware sectors. Are your plants protected with the top alloy for high-temperature and extreme service?