Seamless UNS N08020 Nickel Alloy Steel Pipe refers to a high-performance corrosion-resistant alloy pipe, commonly known as Alloy 20 or Carpenter 20, is a nickel-iron-chromium austenitic alloy designed primarily for superior corrosion resistance in harsh chemical environments, particularly sulfuric acid. It is not a traditional carbon or low-alloy steel but a high-performance nickel-based superalloy with iron as a significant component (typically 32-46%). The "nickel alloy steel" designation in your query likely refers to its classification as a nickel-chromium-iron alloy used in steel-like piping applications. This material is stabilized with niobium (columbium) to prevent sensitization and intergranular corrosion, making it ideal for general corrosive service.Alloy 20 seamless pipes are produced under the ASTM B729 specification (or its ASME SB729 boiler code equivalent), which covers seamless, cold-worked, or hot-finished pipes and tubes in UNS N08020, N08026, and N08024 grades. These pipes are furnished in a stabilized-annealed condition unless otherwise specified.
Seamless UNS N08020 nickel alloy pipe, commonly known as Alloy 20 or Carpenter 20, is a high-performance, austenitic nickel-iron-chromium alloy designed for superior corrosion resistance in harsh chemical environments. It is not a traditional carbon or low-alloy steel but a nickel-based superalloy with significant iron content (often referred to as "nickel alloy steel" in industrial contexts). Developed specifically for resistance to sulfuric acid and other aggressive media, it is widely used in chemical processing, petrochemical, pharmaceutical, and food industries. The seamless construction ensures uniformity and strength without welds, making it ideal for high-pressure and high-temperature applications.
|
Nickel (Ni) |
32.0–38.0 |
|
Chromium (Cr) |
19.0–21.0 |
|
Iron (Fe) |
Balance |
|
Copper (Cu) |
3.0–4.0 |
|
Molybdenum (Mo) |
2.0–3.0 |
|
Niobium (Nb) + Tantalum (Ta) |
8xC–1.0 (min 0.30) |
|
Manganese (Mn) |
2.0 max |
|
Carbon (C) |
0.07 max |
|
Silicon (Si) |
1.0 max |
|
Phosphorus (P) |
0.045 max |
|
Sulfur (S) |
0.035 max |
|
Tensile Strength |
551 MPa (80 ksi) min |
|
Yield Strength (0.2% offset) |
241 MPa (35 ksi) min |
|
Elongation |
30% min |
|
Hardness (Brinell) |
217 max |
|
Melting Point |
1443°C (2629°F) |
|
Density |
8.05 g/cm³ |
ASTMB407 Incoloy 800H Seamless Nickel Alloy Steel Tube are high-performance iron-nickel-chromium alloy tubes designed for exceptional strength and superior resistance to high-temperature oxidation and corrosion. Manufactured to meet ASTM B407 standards, these seamless tubes are widely used in industries such as petrochemical, power generation, and heat treatment. ① STANDARD: ASTM B407 ...② OD RANGE : 6-257MM③ THICKNESS RANGE: 1-35 MM
Nickel 201 Seamless Nickel Alloy Steel Tube is a high-purity, low-carbon nickel alloy tube known for its excellent mechanical properties, corrosion resistance, and thermal conductivity. These tubes are ideal for use in chemical processing, electronics, and marine applications where high performance and purity are essential. ① STANDARD: ASTM B161/ ASTM B163/ASME SB161/ASME AB163② OD RANGE : 6-257 MM③ THICKNESS RANGE: 1-35 MM
Nickel 200 Seamless Nickel Alloy Steel Pipe is high-purity nickel tube known for their excellent resistance to corrosion, strong mechanical properties, and ability to perform under extreme temperatures and harsh chemical environments. Ideal for chemical processing, power generation, and marine applications, these tubes are designed to offer long-lasting performance with minimal maintenance.① STANDARD: ASTM B161/ ASTM B163/ASME SB161/ASME AB163② OD RANGE : 6-457MM③ THICKNESS RANGE: 1-35 MM
UNS N08031 Seamles Nickel Alloy Steel Tube are high-performance nickel-based alloy tubes known for their exceptional corrosion resistance, strength and durability in demanding environments. ① STANDARD: ASTM B622/ ASTM B829 ...② OD RANGE : 6-457 MM③ THICKNESS RANGE: 1-45 MM
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