Haynes 188 （Haynes 188）(Udimet 188) (Alloy 188) (UNS R30188) (W.Nr.2.4683) (HS 188 )(CoCr22NiW) (KCN22W)
Available forms of Haynes 188
– Round bars、Wire、Forgings
– Sheet、Plate、Strip steel
– Seamless pipe and tube、Welded pipe and tube
– Pipe fittings and flanges
– Non-standard customised parts
1.Haynes 188 LIMITING CHEMICAL COMPOSITION, %
2.Haynes 188 Introduction
Alloy 188 is a high-performance alloy with good oxidation resistance, excellent high temperature strength. It has good ductility even after prolonged exposure to temperatures of 760-871.1°C (1400-1600°F).
The high chromium content, addition to small quantities of lanthanum, in its composition improves the oxidation resistance of this alloy. It also possesses good fabricability and weldability.
3.Haynes 188 MAJOR SPECIFICATIONS
4.Haynes 188 Physical Properties
| Properties | Metric | Imperial |
| Density | 9.14g/cm³ | 0.330 lb./in³ |
| Melting point | 1300-1330°C | 2370-2430°F |
| Tensile strength (annealed) | 963 Mpa | 140000 psi |
| Yield strength (annealed) | 446 Mpa | 64700 psi |
| Elongation at break (annealed) | 55% | 55% |
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