Amid a North Sea rig's flare tip meltdown at 1100°C, where oxidation scaled competitors like Inconel 617 by 2x faster, switching to Haynes® 188 Plates (UNS R30188) cut downtime 35% and saved $2M in repairs. This cobalt-nickel-chromium-tungsten marvel shields gas turbine flame holders and afterburners in oil & gas, powering procurement decisions for engineers facing sulfidation and hot corrosion .
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Haynes® 188 outperforms nickel alloys with oxidation resistance to 2000°F (1093°C) prolonged exposure, forming tenacious Cr/La scales that spall less than Inconel 617 reducing burner rig metal loss to 0.35 mg/hr vs 2.47 for alternatives . Lanthanum doping deters Laves phase embrittlement, preserving ductility after 1000+ hours at 1800°F where others lose 50% impact strength . Ideal for marine flare tips and power shrouds, it maintains 243 MPa tensile at 980°C.
Aurico Alloys LLP, affordable trusted supplier, manufacturer, and stockist of Haynes® 188 Plates, equips chemical, oil & gas, marine, pharma, power industries, and hardware stores with AMS 5608-certified stock exporters from India to abroad subsea projects . Haynes 188 plate suppliers in Mumbai deliver for gas turbine flame holders, liners, transition ducts, afterburner components .
Stats highlight superiority: 1000-hour burner rig tests show 9 mg weight loss vs 63 mg for HR-120, enabling 20% thinner plates that slash costs 15% . High-temperature oxidation resistant Alloy 188 plates suit land-based turbine shrouds; sulfidation resistant for oil refinery sulfur recovery . Haynes 188 plate price per kg in Mumbai competitive for power exhaust reheater systems .
High-quality Haynes® 188 Plates ready for industrial use.
Specification Overview
| Supplier & Manufacturer | Aurico Alloys LLP - Haynes 188 plate suppliers in Mumbai |
|---|---|
| Grade | Haynes 188 (UNS R30188) |
| Standards | AMS 5608 (sheet/plate), AMS 5772 (bar), NACE MR0175 |
| Thickness Range | 4.75 mm – 150 mm |
| Width/Length | Up to 2500mm width, 2500–12500mm length |
| Finish | Hot/cold rolled, solution annealed, custom cut |
| Delivery | Stock, MTC 3.1, export ready |
| 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 | R30188 |
| Werkstoff / EN number | 2.4683 |
| EN designation | CoCr20NiW |
| Density | 8.98 g/cm3 |
| Melting range | 1300-1415 °C |
| Electrical resistivity | 101.0 µΩ·cm |
| Thermal diffusivity | 0.0292 cm²/s |
| Thermal conductivity | 10.4 W/m·°C |
| Specific heat (100 °C) | 423 J/kg·°C (RT cell on the source page is corrupt - see note above) |
| Coefficient of expansion (25-100 °C) | 12.1 µm/m·°C |
| Dynamic modulus of elasticity | 232 GPa |
| Modulus of rigidity (dynamic) | 90 GPa |
| Poisson's ratio | 0.30 |
| Plate, sheet and strip specification | AMS 5608 |
Identifiers and physical constants for Haynes 188. A dash means no such designation is published for this grade.
Stock & Product Availability
Verified Haynes 188 plate stockholders in India like Aurico offer marine grade Alloy 188 plate stockist in Mumbai: 4.75–150mm thick, custom cut Haynes 188 plate sizes for furnace baffles, sulfur units, with Mill Test Certificates (MTC) 3.1 .
Chemical Composition
| Element | Min (%) | Max (%) |
|---|---|---|
| Carbon (C) | 0.05 | 0.15 |
| Manganese (Mn) | — | 1.25 |
| Silicon (Si) | 0.20 | 0.50 |
| Phosphorus (P) | — | 0.020 |
| Sulfur (S) | — | 0.015 |
| Chromium (Cr) | 20.00 | 24.00 |
| Nickel (Ni) | 20.00 | 24.00 |
| Tungsten (W) | 13.00 | 16.00 |
| Lanthanum (La) | 0.02 | 0.12 |
| Boron (B) | — | 0.015 |
| Iron (Fe) | — | 3.00 |
| Cobalt (Co) | — | Balance |
Composition limits for Haynes 188. 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) | 896–1034 |
| Yield Strength 0.2% (MPa) | 448–517 |
| Elongation (%) | 20–30 |
| Hardness (HRC) | 34–40 |
| Max Service Temp (°C) | 1093 (prolonged) |
| Oxidation Loss (mg/hr) | 0.35 (burner rig) |
Applications & Benefits
Why this grade
Haynes® 188 is a cobalt-base alloy with a lanthanum addition that improves scale adherence. It carries oxidation resistance to around 1095°C, appreciably higher than alloy 25, together with better long-term thermal stability — which is why combustor liners and transition ducts that would oxidise in 25 are built in 188.
- Oil, Gas & Marine: Sulfidation resistant Haynes 188 plates for oil refinery sulfur recovery; Haynes 188 plate exporters in Mumbai for offshore platform flare tips, subsea thermal projects, high-pressure petrochemical vessels .
- Power/Aerospace: AMS 5608 Haynes 188 plates for aircraft engine transition ducts, afterburner components, nozzle guide vanes; oxidation resistant for land-based turbine shrouds .
- Chemical/Pharma: UNS R30188 cobalt alloy plates for jet engine parts India; ductile for chemical reactors 1000°C+, pharma waste processing .
- Industrial: Corrosion resistant Haynes 188 sheets for high-heat offshore tools; Haynes 188 plate price per kg Mumbai for exhaust reheater systems .
- Supply: Leading Haynes 188 alloy plate dealers in Mumbai for age-hardened sheets, custom furnace baffles .
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
We deliver across India from our Mumbai stockyard. See every city we supply on our supply locations page.
Conclusion
Haynes® 188 Plates from Aurico Alloys LLP empower fabricators and OEMs with AMS 5608 proven oxidation/sulfidation defense up to 1093°C, yielding 35% uptime gains over alternatives . Ready to upgrade your high-heat components with Haynes 188?