Hastelloy G30 Pulver

Hastelloy G30-pulver är ett nickelbaserat legeringspulver som är avsett för additiv tillverkning. Detta avancerade material erbjuder utmärkt korrosionsbeständighet, oxidationsbeständighet och hållfasthet vid höga temperaturer. Hastelloy G30 möjliggör produktion av komplexa, högpresterande metalldelar med hjälp av 3D-printingteknik.

Overview of Hastelloy G30 Powder

Hastelloy G30 powder has the following key characteristics:

Sammansättning:

• Nickel: Balance
• Chromium: 22.5-23.5%
• Tungsten: 12.5-14.0%
• Iron: 3.0% max
• Cobalt: 6.0%
• Molybdenum: 1.5%

Viktiga egenskaper:

• High strength and hardness at elevated temperatures up to 1050°C
• Excellent corrosion resistance in oxidizing, reducing, and neutral aqueous environments
• God svetsbarhet med konventionella svetsmetoder
• Låg värmeutvidgningskoefficient

Particle Size Range: 15-45 mikrometer

Common Industry Applications:

• Komponenter för flyg- och rymdindustrin
• Power generation parts
• Utrustning för kemisk bearbetning
• Oil and gas well components exposed to sour conditions

Key Suppliers: Carpenter Additive, Sandvik Osprey, Hoganas, LPW Technology

Detailed Metallurgical Properties

Hastelloy G30 derives its properties from careful composition optimization for 3D printing and subsequent heat treatment. Here are some key metallurgical characteristics:

Table 1: Composition limits and precipitation hardening response

Precipitation hardening heat treatment applied after 3D printing leads to formation of Ni3(Al,Ti) gamma prime and Ni3(Nb,Ti) gamma double prime precipitates. This results in significant strengthening and improved mechanical properties at both room and elevated temperatures.

Table 2: Key Properties of Hastelloy G30 Powder

Table 3: Corrosion Resistance Properties

The outstanding ambient and hot corrosion resistance enables reliable performance of components produced in Hastelloy G30 in demanding service environments. It meets strict certification levels set by NACE for sour oil/gas applications.

Laser Powder Bed Fusion Printing

Hastelloy G30 parts can be fabricated using selective laser melting (SLM) and direct laser deposition (DLD) additive manufacturing techniques. Here are some recommended parameters for powder bed fusion:

Table 4: Typical Laser Printing Parameters

High density parts with fine microstructures can be produced by optimized SLM processing. This is followed by hot isostatic pressing to eliminate internal porosity and precipitation hardening heat treatment to enhance mechanical properties.

Table 5: Key Laser Powder Bed Fusion Printer Models

All leading metal 3D printer manufacturers have released machines capable of processing nickel superalloys like Hastelloy G30 flawlessly. They use high precision lasers and controlled inert gas atmospheres.

Industriella tillämpningar

Here are some common applications where Hastelloy G30 printed parts deliver superior performance over conventional materials:

Olja och gas:

• Wellhead valves, Christmas trees, manifolds
• Downhole safety valves, sleeves
• Topside piping, fluid connectors

Chemical and Petrochemical:

• Process vessel internals like demisters
• Heat exchanger tubes, shells, baffles
• Pipe fittings, elbows, tees

Kraftgenerering:

• Combustion liners, transition ducts, fuel nozzles
• Gas turbine blades, vanes, shrouds
• Boiler heat shields, containment rings

Aerospace:

• Aircraft engine casing and mounts, fuel lines
• Spacecraft turbopump components

Hastelloy G30 enables lighter, efficient designs in these applications thanks to properties like:

• High strength at temperatures up to 1050°C
• Resistance to pitting and crevice corrosion failure
• Immunity to chloride-induced stress corrosion cracking
• Tolerance of high-pressure hydrogen gas environments

The weldability of the material allows joining to other components made of stainless, duplex or nickel-base alloys. This permits designers to only print the sections exposed to extreme conditions.

Tillgänglighet

Hastelloy G30 powder can be procured from leading global suppliers in the following size distribution ranges:

Table 6: Indicative Pricing

Priserna varierar från $130-165/kg baserat på inköpsvolymer. Anpassad finfördelning och storleksklassificering kan också köpas.