Alloy 635 Seamless Pipe – High Temperature Nickel Alloy Pipe Supplier
Alloy 635 Seamless Pipe, also known as Hastelloy S (UNS N06635), is a high-performance nickel-based alloy pipe designed for high-temperature, oxidation-resistant, and thermal cycling environments. Due to its excellent mechanical properties and corrosion resistance, Alloy 635 seamless pipes are widely used in aerospace, automotive exhaust systems, power plants, and industrial heat exchanger systems.
Compared with conventional stainless steel pipes, Alloy 635 seamless pipes offer superior oxidation resistance, high thermal stability, and excellent strength retention at elevated temperatures.
| Specification Alloy 635 Seamless Pipe: |
| Parameter | Specification |
|---|---|
| Material Grade | Alloy 635 / Hastelloy S |
| UNS Number | UNS N06635 |
| Pipe Type | Seamless Pipe |
| Manufacturing Standard | ASTM B622 / ASME SB622 |
| Outside Diameter (OD) | 1/4” – 6” |
| Wall Thickness | 0.02” – 0.5” |
| Length | 6m / 12m or customized |
| Schedule | SCH10 / SCH40 / SCH80 |
| Surface | Annealed & Pickled |
| Alloy UNS N06635 Seamless Pipe Equivalent Standard: |
| Standard System | Grade |
|---|---|
| ASTM | UNS N06635 |
| DIN | W.Nr. 2.4617 |
| JIS | Alloy S |
| GB | Nickel Alloy Pipe |
| Alloy 635 seamless pipe Chemical Composition: |
| Element | Composition (%) |
|---|---|
| Nickel (Ni) | Balance |
| Chromium (Cr) | 14.0 – 16.5 |
| Cobalt (Co) | 14.0 – 16.5 |
| Molybdenum (Mo) | 7.5 – 9.0 |
| Iron (Fe) | ≤3.0 |
| Alloy 635 nickel pipe Mechanical Behavior: |
| Property | Value |
|---|---|
| Tensile Strength | ≥827 MPa |
| Yield Strength | ≥379 MPa |
| Elongation | ≥35% |
| Density | 8.3 g/cm³ |
| Regular Stock Size List: |
| OD (inch) | Wall Thickness | Length | Schedule |
|---|---|---|---|
| 1/2” | 0.065 | 6m – 12m | SCH40 |
| 1” | 0.120 | 6m – 12m | SCH80 |
| 1-1/2” | 0.188 | 6m – 12m | SCH80 |
| 2” | 0.250 | 6m – 12m | SCH80 |
| Applications of 635 alloy Seamless pipe |
Due to its excellent high-temperature strength and oxidation resistance, Alloy 635 pipes are widely used in industries requiring reliable performance in extreme environments.
Aerospace Industry
Alloy 635 pipes are used in aircraft exhaust systems, turbine components, and other high-temperature structural parts where thermal stability and strength are essential.
Automotive Industry
In the automotive sector, Alloy 635 pipes are commonly used in high-performance exhaust systems and emission control components because of their superior oxidation resistance.
Energy & Power Industry
Alloy 635 pipes are applied in industrial heat exchangers, high-temperature piping systems, and power generation equipment where long-term durability is required.
| Alloy 635 Seamless Pipe Manufacturing Process |
| Production Step | Process |
|---|---|
| Raw Material Inspection | Nickel alloy billet testing |
| Heating | Billet heating in furnace |
| Piercing | Hot piercing to form hollow tube |
| Rolling | Hot rolling or cold drawing |
| Heat Treatment | Solution annealing |
| Straightening | Dimensional correction |
| Inspection | NDT and mechanical testing |
| Cutting & Packaging | Final delivery preparation |
| FAQ |
1. What is Alloy 635 seamless pipe?
Alloy 635 seamless pipe is a nickel-based alloy pipe (UNS N06635) designed for high-temperature applications. It offers excellent oxidation resistance, thermal stability, and good mechanical strength in extreme environments.
2. Which standards are used for Alloy 635 seamless pipes?
Alloy 635 pipes are commonly manufactured according to ASTM B622 / ASME SB622 specifications, ensuring reliable chemical composition and mechanical properties.
3. What industries use Alloy 635 seamless pipes?
Alloy 635 seamless pipes are widely used in aerospace, automotive, chemical processing, and power generation industries, especially in equipment exposed to high temperatures.
4. What temperature can Alloy 635 withstand?
Alloy 635 has excellent oxidation resistance and can perform in high-temperature environments up to approximately 1093°C (2000°F).
5. What are the advantages of Alloy 635 compared with other nickel alloys?
Compared with many standard nickel alloys, Alloy 635 provides better thermal stability, oxidation resistance, and resistance to thermal fatigue, making it suitable for cyclic heating and high-temperature service.
| SASA ALLOY’S Quality Assurance |
1. Visual Dimension Test
2. Mechanical examining like tensile, Elongation and reduction of area.
3. Impact analysis
4. Chemical examination analysis
5. Hardness test
6. Pitting protection test
7. Penetrant Test
8. Intergranular Corrosion Testing
9. Roughness Testing
10. Metallography Experimental Test
| Why Choose Us |
1. You can get the perfect material according to your requirement at the least possible price.
2. We also offer Reworks, FOB, CFR, CIF, and door to door delivery prices. We suggest you to do deal for shipping which will be quite economical.
3. The materials we provide are completely verifiable, right from raw material test certificate to the final dimensional statement.(Reports will show on requirement)
4. We guarantee to give a response within 24hours(usually in the same hour)
5. Provide SGS TUV report.
6. We are fully dedicated to our customers. If it will not possible to meet your requirements after examining all options, we will not mislead you by making false promises which will create good customer relations.
7.Provide one-stop service.
| Alloy Pipe Package: |
1. Packing is quite important especially in a case of international shipments in which consignment pass through various channels to reach the ultimate destination, so we put special concern regarding packaging.
2. Sasa alloy’s pack our goods in numerous ways based on the products. We pack our products in multiple ways, such as,
