Haynes 188 combines excellent high temperature strength with very good resistance to oxidizing environments up to 1095℃ for prolonged exposure, and excellent resistance to sulfate deposit hot corrosion. It also has excellent resistance to molten chloride salts, and good resistance to gaseous sulfidation.
Chinese designation: Haynes 188 高温合金
| Element | Min % | Max % |
|---|---|---|
| Ni | 20 | 24 |
| Cr | 20 | 24 |
| W | 13 | 16 |
| Fe | — | 3 |
| Mn | — | 1.25 |
| Si | 0.2 | 0.5 |
| C | 0.05 | 0.15 |
| La | 0.02 | 0.12 |
| P | — | 0.02 |
| S | — | 0.015 |
| B | — | 0.015 |
| Co | balance | — |
Chemical composition per the grade specification. Values are nominal; the certified analysis is issued with every order on EN 10204 3.1 documentation.
| Product form | ASTM / EN specification |
|---|---|
| Specification confirmed against ASTM/EN on enquiry | On request |
This grade is supplied to the applicable ASTM/EN specification, confirmed against your drawing or purchase order.
Haynes 188 (UNS R30188) is a nickel-based alloys grade. Haynes 188 combines excellent high temperature strength with very good resistance to oxidizing environments up to 1095℃ for prolonged exposure, and excellent resistance to sulfate deposit hot corrosion. It also has excellent resistance to molten chloride salts, and good resistance to gaseous sulfidation.
ROBAN supplies Haynes 188 as in standard forms to your drawing, subject to specification confirmation.
Yes. Every order ships with EN 10204 3.1 material certification covering the actual heat analysis. 3.2 documentation is available where the contract requires it.
Stock items ship within 3 to 7 working days. Cut-to-size and forged items typically run 15 to 30 working days depending on quantity and specification. Send us your drawing or enquiry for a firm lead time.
Drawing, grade, dimensions, quantity and delivery date — we price from those.
Request a Quote →Heat analysis certificate issued with every order at no extra charge.
Quality documentation →Shearing, sawing and machining to the tolerances on your drawing.
Capabilities →Buyers often substitute within a family once service conditions, corrosion behaviour or fabrication method narrow the choice.
