Hastelloy G-3 alloy pipe, referred to as G3, is a nickel-based corrosion-resistant alloy with superior performance. It belongs to the Ni-Cr-Fe system containing Mo and Cu. It has excellent resistance to oxidation, atmospheric corrosion and stress corrosion cracking. And it has high resistance to local corrosion (pitting corrosion, crevice corrosion). Hastelloy G-3 alloy pipe has a low cost compared to other nickel-based corrosion-resistant alloys due to its high Fe content.
Specifications |
In stock, can be customized according to customer requirements |
Form |
Plate, rod, pipe, wire |
Classification |
Hastelloy |
C |
Si |
Mn |
P |
S |
Ni |
Cr |
Mo |
W |
Fe |
Cu |
Nb+Ta |
Co |
|
|
|
|
|
Balance |
21.0 |
6.0 |
|
18.00 |
1.5 |
|
|
0.015 |
0.50 |
1.00 |
0.020 |
0.01 |
23.5 |
8.0 |
1.5 |
21.0 |
2.5 |
0.5 |
5.0 |
Tensile strength (σb/MPa) |
Yield point (σs/MPa) |
Sample size |
Elongation after break (δ5/%) |
590-770 |
≧335 |
The sample blank size is 2.5mm |
≧10 |
Hastelloy G-3 alloy pipesare commonly used in flue gas desulfurization systems, papermaking, and phosphoric acid production steam generators and heat exchangers. Oil well pipes made of this alloy have excellent resistance to H2S, CO2, and Cl- corrosion, and are the material of choice for oil well pipes in sour gas fields.
Hastelloy G-3 alloy pipewelding process:Hastelloy G-3can be welded with various welding processes, such as tungsten electrode inert gas shielded welding, plasma arc welding, manual sub-arc welding, metal pole inert gas shielded welding, and melting pole inert gas shielding weld.
Before welding, the material needs to be in an annealed state to remove scale, oil stains, and various marks and marks. A wide area of about 25mm on both sides of the weld needs to be polished to a bright metal surface. Use low heat input, and the interlayer temperature does not exceed 150°C.
The manufacturing process of stainless steel and alloys involves multiple steps to transform raw materials into flat,rectangular sheets or plates made of stainless steel and alloys. Here are a few key steps for stainless steel and alloys:
Molten stainless steel and alloys are cast into large ingots or billets through a casting process.
During the hot rolling process,the thickness of the steel ingot is gradually reduced and elongated to form long strips or coils.
Annealing involves heating stainless steel and alloys to a specific temperature and then slowly cooling it.
Cold rolling is carried out through rolling mills to reduce thickness to meet customer specifications.
Wuxi Walmay Metal Co,Ltd is a comprehensive processing group of Alloy Steel、Forged Parts Fitting、Titanium Alloy、Stainless Steel、Special Welding Wireseries， and more than 800 specifications.
Our group has been engaged in the domestic and global market for more than ten years with rich steel experience and can offer professional advice for customers inapplications with different materials.
Machine cutting
Sheet cutting
plasma cutting
Dynamic waterjet cutting
sawing
Plank leveling
polishing
laser cutting
laser cutting
production cutting
Long product cutting
Bar and structural cutting
polishing
Heat treatment and annealing: Wuxi Walmay Metal can heat treat certain 400 series stainless steels.
Material Reliability Identification (PMI): Wuxi Walmay Metal can complete this testing in-house.
Ut Testing: Ultrasonic testing (UT) uses high-frequency sound energy to inspect and measure stainless steel products.
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