Hastelloy G30 Round Bar (UNS N06030)
Hastelloy G30 Round Bar is a nickel–chromium–iron–molybdenum alloy specially developed for exceptional resistance to phosphoric acid and highly oxidizing chemical environments. With a high chromium content, Hastelloy G30 provides excellent protection against general corrosion, pitting, and crevice corrosion, particularly in fertilizer and chemical processing industries.
Compared to Alloy G3 and Alloy 20, Hastelloy G30 Round Bar offers superior corrosion resistance in wet process phosphoric acid (WPA) containing chlorides and fluorides. It also exhibits good mechanical strength, excellent fabricability, and reliable weldability for demanding industrial applications.
Key Features
- Outstanding resistance to wet process phosphoric acid
- High resistance to oxidizing environments
- Excellent protection against pitting and crevice corrosion
- Better corrosion resistance than Alloy 20 and G3
- Good weldability and fabrication characteristics
Sizes
| Diameter Range | Length |
|---|---|
| 6 mm – 300 mm | 3 m, 6 m, Cut to Length |
| Custom Sizes | As per project requirement |
Hastelloy G30 Chemical Composition
| Element | Percentage (%) |
|---|---|
| Nickel (Ni) | Balance |
| Chromium (Cr) | 28.0 – 31.5 |
| Iron (Fe) | 13.0 – 17.0 |
| Molybdenum (Mo) | 4.0 – 6.0 |
| Cobalt (Co) | ≤ 5.0 |
| Tungsten (W) | ≤ 1.5 |
| Carbon (C) | ≤ 0.03 |
| Manganese (Mn) | ≤ 1.0 |
| Silicon (Si) | ≤ 0.80 |
UNS N06030 Mechanical Properties (Solution Annealed)
| Property | Value |
|---|---|
| Tensile Strength | ≥ 620 MPa |
| Yield Strength | ≥ 240 MPa |
| Elongation | ≥ 40% |
| Hardness | ~190 HB |
Alloy G30 Physical Properties
| Property | Value |
|---|---|
| Density | 8.22 g/cm³ |
| Melting Range | 1350 – 1390°C |
| Thermal Conductivity | ~11.5 W/m·K |
| Electrical Resistivity | ~1.15 µΩ·m |
Types of Hastelloy G30 Round Bar
- Hot Rolled Round Bar
- Cold Drawn Round Bar
- Solution Annealed Round Bar
- Bright / Precision Ground Round Bar
- Forged Round Bar
Applications
- Phosphoric acid production equipment
- Fertilizer and chemical processing plants
- Heat exchangers and reactors
- Pickling and acid regeneration systems
- Pollution control equipment
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