Hastelloy G-30 (Alloy G-30), with UNS N06030 and W.Nr. 2.4603, is a highly corrosion-resistant nickel-molybdenum alloy. It provides excellent protection against aggressive environments, including sulfuric acid, hydrochloric acid, and other highly corrosive media, making it ideal for chemical processing applications.
This alloy combines excellent resistance to pitting, crevice corrosion, and stress corrosion cracking, even at elevated temperatures. Hastelloy G-30 is widely used in industries such as chemical processing, power generation, and pollution control, particularly for components like reactors, heat exchangers, and piping systems that require superior corrosion resistance and strength.
| Nickel (Ni) | Balance |
| Molybdenum (Mo) | 4-6% |
| Copper (Gu) | 1-2.4% |
| Chromium (Cr) | 28-31.5% |
| Iron (Fe) | 13-17% |
| Cobalt (Co) | 5% max. |
| Tungsten (W) | 1.5-4% |
| Manganese (Mn) | 1.5% max. |
| Silicon (Si) | 0.8% max. |
| Carbon (C) | 0.03% max. |
| Phosphorus (P) | 0.04% max. |
| Sulfur (S) | 0.02% max. |
| Columbium+Tantalum (Nb+Ta) | 0.3-1.5% |
| Density | lb/in3 | 8.22 g/cm³ (0.297 lb/in³) |
| Electrical Resistivity | RT | 45.7 μohm.in (1.16 μohm.m) |
| Thermal Conductivity | RT | 69 btu.in/h.ft2 .°F(10 W/m.°C) |
| Mean Coefficient of Thermal Expansion | 86-200°F. | 7.1 μin/in.°F |
| 30-100°C | 15.3 μm/m.°C | |
| Dynamic Modulus of Elasticity | RT | 29.3 x 106 psi (202 GPa) |
|
Temperature |
Yield strength |
Tensile strength |
Elongation |
|||
|
0.2% Offset |
Rm |
A |
||||
|
°C |
°F |
MPa |
Ksi |
MPa |
ksi |
% |
|
20 |
68 |
275 |
40 |
690 |
100 |
40 |
| Bar and Rod | Seamless Pipe and Tube | Welded Pipe and Tube | Plate, Sheet, and Strip | Forgings | Fittings |
| ASTM B 581/ASME SB 581 | ASTM B 622 / ASME SB 622 | ASTM B 626 /ASME SB 626, B 619/ SB 619 | ASTM B 582/ASME SB 582 | ASTM B 564/ASME SB 564, B 462/ SB 462, B 472/ SB 472 | ASTM B 366/ASME SB 366 |
Standard product forms of Hastelloy G-30/Alloy G-30/UNS N06030/W. Nr. 2.4603 are pipe, tube, sheet, strip, plate, round bar, flat bar, forging stock, hexagon and wire. The products are available in a wide variety of sizes. Please contact us at [email protected] for full information.
English 
Korean 
Japanese 
Arabic 
Spanish 
German 
Portuguese 
French 
Russian 
Italian