1. Introduce
– Ni-Cr-W heat-resistant casting alloy for temperatures up to 1150℃
– Common name : Na22H, G-NiCr28W, Alloy 22H
2. Property
– Good corrosion resistance, erosion and crevice corrosion resistance, strength, durability, heat resistance, creep and oxidation resistance
| Element | Impact |
|---|---|
| Cr | Provides erosion and crevice corrosion resistance |
| W | Provides heat resistance, abrasion resistance, creep strength |
[Na22H Chemical Composition (%)]
| C | Mn | P | S | Si |
|---|---|---|---|---|
| 0.35~0.55 | Max. 1.50 | Max. 0.040 | Max. 0.030 | 1.0~2.0 |
| Cr | Ni | Mo | Fe | W |
|---|---|---|---|---|
| 27.0~30.0 | 47.0~50.0 | Max. 0.50 | Bal. | 4.0~6.0 |
[Na22H Mechanical Properties]
| Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation (%) |
|---|---|---|
| Min. 440 | Min. 240 | 3 |
[Na22H Physical Properties]
| Density (g/㎤) | Melting Range (℃) | Specific Heat (0-100℃), J/kg*℃ |
|---|---|---|
| 7.9 | 1380 | 460 |
3. Available Form
– Pipe, Tube
– Plate, Sheet
– Bar, Rod
– Shafts
4. Application & Product
– Chemical, Electrical
| Application | Product |
|---|---|
| Chemical | Furnace parts, Sintering and Firing muffles, Calciner parts, Radiating tubes, Pyrolysis coils |
| Electrical | Roller Hearths, Furnace Beam Supports |
(1) Furnace parts / (2) Roller hoses / (3) Pyrolysis coils
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