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UNS N06030
Hastelloy Alloy G-30
W.Nr:2.4603
Short Description:
Hastelloy G-30 is an improved version of nickel-chromium-iron-molybdenum-copper alloy G-3. With higher chromium, added cobalt and tungsten, the G-30 shows superior corrosion resistance over most other nickel and iron based alloys in commercial phosphoric acids as well as complex environments containing highly oxidizing acids.
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Product Description
Hastelloy G-30 resists the formation of grain boundary precipitates in the heat-affected zone, making it suitable in the as-welded condition. HASTELLOY G-30 is basically the same as other high alloys in regard to formability. It is generally stiffer than an austenitic. Because of its good ductility, cold working is relatively easy and is the preferred method of forming. The alloy is easily weldable using Gas-Tungsten Arc, Gas Metal Arc and shielded Metal Arc. The welding characteristics are similar to those of G-3.
Common Trade Names:
Specifications:
Hastelloy G-30 Characteristic:
Hastelloy G-30 offers superior corrosion resistance to commercial phosphoric acid and many complex environments containing strong oxidizing acids such as nitric acid/hydrochloric acid, nitric acid/hydrofluoric acid and sulfuric acid. dIt can prevent the formation of grain boundary precipitation in the welding heat affected zone, so that it can adapt to many kinds of chemical working conditions in the welding state.
Hastelloy G-30 Chemical Composition
% | C | Si | Mn | P | S | Cr | Ni | Mo | Cu | Fe | Co | W | Nb/Ta |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Min | - | - | - | - | - | 28 | - | 4 | 1 | 13 | - | 1.5 | 0.3 |
Max | 0.03 | 0.8 | 1.5 | 0.04 | 0.02 | 31.5 | Balance | 6 | 2.4 | 17 | 5 | 4 | 1.5 |
Hastelloy G-30 Physical Properties
Density | Melting range |
---|---|
8.22 g/cm³ | 1370-1400°C |
Hastelloy G-30 mechanical properties
Form | Test Temperature,°c | Thickness / Bar Diameter,mm | "Yield Strength (0.2% Offset),MPa | Tensile Strength,MPa | Elongation,% |
---|---|---|---|---|---|
Sheet | RT | 0.71 | 324 | 689 | 56 |
Sheet | RT | 3.2 | 352 | 689 | 56 |
Plate | RT | 6.4 | 317 | 676 | 55 |
Plate | RT | 9.5 | 310 | 689 | 65 |
Plate | RT | 12.7 | 317 | 689 | 64 |
Plate | RT | 19.1 | 324 | 676 | 65 |
Plate | RT | 31.8 | 310 | 683 | 60 |
Bar | RT | 25.4 | 317 | 689 | 60 |
Plate & Bar | 93 | Various | 290 | 655 | 54 |
Plate & Bar | 204 | Various | 248 | 607 | 59 |
Plate & Bar | 316 | Various | 228 | 572 | 59 |
Plate & Bar | 427 | Various | 214 | 552 | 60 |
Plate & Bar | 538 | Various | 200 | 524 | 62 |
Machinability:
Forming:
Welding:
Heat Treatmenty:
Forging:
Cold Working:
Annealing:
Hardening:
- Bars & Rods & Foring Ring /Flanges
- Sheet & Plate
- Strip & Coil
- Welding Wire &Spring wire
- Seamless Tube & Welded Pipe
»Round Bar & Square Bar & Hexagon Bar
● Diameter : φ8~φ300mm Length:10mm-6000mm
● Hot forging, Hot Rolling, Cold Drawing
● Bright Surface, Polished Surface, Black Surface
»Tube & Pipe:Seamless Tube& Welded Pipe
● Cold Drawing Seamless Pipe: φ1.0~φ220mm
● Hot Extrusion pipe: φ50~φ250mm
● Others : U Blend Tube and Elbow
»Hot Rolled Plate & Cold Rolled Sheet
● Cold Rolling Sheet Thickness: ≦2.0mm Width:≦1500m
● Hot rolling Plate Thickness: ≧4.0mm Width: ≦2500m
»Strip & Tape Ribbon
● Thickness: ≧ 0.01mm Width: 15mm-300mm
● Cold rolling BA Strip, Hard & Soft Condition
»Straight Length Wire & Spool Wire
● Welding Wire: φ 0.1mm~6.0mm Cut length Rod: φ1.0~φ8.0mm
● Package : 5-25kg/Spool or Box

Hastelloy G-30 ApplicationsI
- Phosphoric acid equipment
- Pickling operations
- Sulphuric acid equipment
- Petrochemical products
- Nitric acid equipment
- Fertilizer production
- Nuclear fuel reprocessing
- Pesticide production
- Nuclear waste disposal
- Gold extraction