Views: 33 Author: Rachel Publish Time: 2024-08-06 Origin: Site
Hastelloy C4 alloy (UNS N06455) is the most stable of the common nickel-chromium-molybdenum materials. These materials are known for resisting many harsh chemicals. This includes hydrochloric acid, sulfuric acid, and chlorides.
This stability means the alloy can be welded safely. There is no risk of sensitization. Simplified Text:
Sensitization happens when harmful particles form in the grain boundaries of the weld heat-affected zone (HAZ).
Hastelloy C4 is a Nickel-Chromium-Molybdenum alloy that offers exceptional stabilization at the elevated temperatures, good ductility and resistance to corrosion properties. It retains its characteristics even after aging up to 1200℉ to 1900℉ or 649℃ to 1038℃.
Alloy C4 resists grain development in the welding area. This makes it very suitable for chemical processes during welding. It offers extremely high resistance to stress corrosion cracking and oxidizing conditions up to 1900℉ or 1038℃.
Hastelloy C4 offers resistance to mineral acids, organic and inorganic acids, seawater, and brine solutions. It has a service temperature up to 1900℉ or 1038℃. Outstanding resistance to high-temperature corrosion and stress corrosion cracking.
Great material for use in chemical processing plants and nuclear fuel processing. Hastelloy C4 equivalent grades:
Haynes C-4: The original manufacturer's designation. Identical alloy.
NS335: Chinese national standard (GB/T) equivalent.
W.Nr. 2.4610: European material number.
NiCr16Mo16Ti: Common European designation highlighting key elements.
JIS NW 4405: Japanese Industrial Standard equivalent.
Composition | Value （%） |
Cr | 14-18 |
Mo | 14-17 |
Fe | ≤3 |
Co | ≤2 |
Mn | ≤1 |
Ti | ≤0.7 |
Si | ≤0.08 |
P | ≤0.04 |
S | ≤0.03 |
C | ≤0.015 |
Ni | Remain |
Like other nickel alloys, it is flexible and easy to shape and weld. It also has great resistance to stress corrosion cracking in solutions with chloride. This type of damage often affects austenitic stainless steels.
With its high levels of chromium and molybdenum, it can resist both oxidizing and non-oxidizing acids. It also resists pitting and crevice attack when chlorides and other halides are present.
As a leading supplier & manufacturer in China, JN Alloy supply cost-effective Hastelloy C4 Products.
1. Classification by thickness: thin plate, medium plate, thick plate, extra thick plate.
A thin steel plate is a steel plate that is 0.2 to 4 mm thick. It is made by hot rolling or cold rolling. A thick steel plate is any steel plate that is more than 4 mm thick. "Thin steel plate" refers to a steel plate with a thickness of no more than 3 mm.
The commonly used thin steel plate thickness is 0.5-2 mm, and it is supplied in sheets and coils. Thin steel plates are generally Class B steel, cold-rolled or hot-rolled steel plates with steel grades of BO-B3.
Requirements for thin steel plates include a flat and smooth surface. The thickness must be uniform. A tight iron oxide film is allowed. There should be no defects like cracks or scars.
The process is divided into hot-rolled thin steel plates and cold-rolled thin steel plates. Mainly used in Changlin Dongfeng fans, automobiles, electrical equipment, vehicles, agricultural machinery, containers, steel furniture, etc.
B. Thick steel plates refer to steel plates with a thickness greater than 3 mm. Thick steel plates are divided into extra-thick steel plates and medium-thick steel plates.
C. Medium-thick steel plates refer to steel plates with a thickness greater than 3 mm and less than 50 mm. Medium-thick steel plates are mainly used for shipbuilding, boilers, bridges, armor and high-pressure container shells, etc.
D. Extra-thick steel plates refer to steel plates with a thickness of not less than 50 mm. Extra-thick steel plates are mainly used for shipbuilding, boilers, bridges and high-pressure container shells, etc.
2. Classification by production method: hot-rolled steel plates, cold-rolled steel plates.
3. Classification by surface characteristics:
Galvanized plates:
- Hot-dip galvanized
- Electrogalvanized
Tin-plated plates
Composite steel plates
Color-coated steel plates
4. Classification by use:
- Bridge steel plates
- Boiler steel plates
- Shipbuilding steel plates
- Armored steel plates
- Automotive steel plates
- Roofing steel plates
- Structural steel plates
- Electrical steel plates (silicon steel sheets)
- Spring steel plates
- And more.
Hastelloy C4 plates and sheets are a kind of corrosion-resistant alloy (CRA). They are used widely in many industries. These components are particularly well-suited for applications in chemical processing, oil and gas production, and marine engineering.
Hastelloy C4 plates and sheets are available in two primary forms: hot-rolled (HR) and cold-rolled (CR). Hot-rolled plates and sheets are cost-effective, as they require no additional shaping processes. On the other hand, cold-rolled plates and sheets undergo further processing, resulting in greater precision. This makes them ideal for intricate applications where precision is crucial.
One of the significant advantages of Hastelloy C4 plates and sheets is their outstanding resistance to corrosion. These superalloy components exhibit remarkable resistance to a wide range of aggressive substances, including strong acids and alkalis. They are highly resistant to issues like pitting, crevice corrosion, and stress corrosion cracking.
Hastelloy C4 plates and sheets are popular in industries like chemical processing, pharmaceuticals, and petrochemicals. These industries often deal with corrosive environments.
Specifications | ASTM B575 / ASME SB575 |
Standard | ASTM, ASME and API |
Specialize | Shim Sheet, Perforated Sheet, B. Q. Profile. |
Size | 0.5 MM TO 200 MM THICK IN 1000 MM TO 2500 MM WIDTH & 2500 MM TO 12500 MM LENGTH |
Form | Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Perforated Sheet, Chequered Plate, Strip, Flats, Blank (Circle), Ring (Flange) |
Finish | Hot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated) |
Hardness | Soft, Hard, Half Hard, Quarter Hard, Spring Hard etc. |
Grade | Hastelloy C4 (UNS N06455) |
Hastelloy C4 is widely used in the chemical industry, metallurgy, electronics, petroleum, aerospace and other fields. Common applications include a variety of chemical equipment, petrochemical installations, marine engineering, and aerospace engine components. Due to its excellent corrosion resistance, it is widely used in the chemical and petrochemical fields. In the aerospace field, Hastelloy C4 is used as a material for high-temperature parts.
Hastelloy C4 performs extremely well in strong reducing
Hastelloy C4 performs extremely well in strong reducing acids. Even after welding or high heat, it still has great corrosion resistance and toughness.
It does not easily become brittle. In places like reactors, heat exchangers, furnace parts, and large piping systems, C4 is often a better choice. It is also a cheaper option.
Hastelloy C22 is a top choice for corrosion-resistant alloys. It has a wide range of corrosion resistance and strong capabilities. Its performance in strong reducing acids is similar to or a bit better than C4. In strong oxidizing acids and media, it performs much better than C4.
Its resistance to pitting and crevice corrosion is excellent. It works especially well in places with high levels of chloride ions. Its high chromium content provides excellent oxidation resistance.
In short, Hastelloy C4 is more stable than C22 when used for high temperature + strong acid or large-scale welding. If it is an extremely corrosive environment, C22 has better comprehensive performance, but it costs more than C4. Consulting hastelloy alloy supplier can help you make the best decision.
C276 has strong corrosion resistance. It works well in medium and low temperatures. It is effective in strong reducing acid and mixed environments.
It has high levels of molybdenum and tungsten. It is very resistant to localized corrosion. It is also very reliable in seawater, salt water, and wastewater.
In short, C276 has a wider range of corrosion resistance than C4. However, C4 has better high-temperature stability and welding performance and a lower cost.
The final decision depends on the specific application. Provide detailed information to your supplier. This will help you choose the right alloy.
