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Alloy 20 Scrap / Carpenter 20Cb3 Scrap / Alloy 20Cb3 Scrap Alloy 20 Scrap / Carpenter 20Cb3 Scrap / Alloy 20Cb3 Scrap Alloy 20 Scrap / Carpenter 20Cb3 Scrap / Alloy 20Cb3 Scrap Alloy 20 Scrap / Carpenter 20Cb3 Scrap / Alloy 20Cb3 Scrap Alloy 20 Scrap / Carpenter 20Cb3 Scrap / Alloy 20Cb3 Scrap

Alloy 20 Scrap / Carpenter 20Cb3 Scrap / Alloy 20Cb3 Scrap

275.0 INR/Kilograms
Get a Price/Quote

Product Details:

  • Scrap Type Industrial Scrap Rods / Bars
  • Condition Clean Scrap, Free from Non-metallic Impurities
  • Density 8.1 Gram per cubic centimeter(g/cm3)
  • Thickness As per Requirement
  • Grade Alloy 20 / Carpenter 20Cb3 / Alloy 20Cb3
  • Purity >= 99%
  • Composition Nickel, Chromium, Iron, Copper, Molybdenum
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Alloy 20 Scrap / Carpenter 20Cb3 Scrap / Alloy 20Cb3 Scrap Price And Quantity

  • 275.0 INR/Kilograms
  • 15 Kilograms

Alloy 20 Scrap / Carpenter 20Cb3 Scrap / Alloy 20Cb3 Scrap Product Specifications

  • Clean Scrap, Free from Non-metallic Impurities
  • Silver Grey
  • Custom Packing - As Required
  • Industrial Scrap Rods / Bars
  • >= 99%
  • As per Requirement
  • 8.1 Gram per cubic centimeter(g/cm3)
  • Random / As Required
  • Nickel, Chromium, Iron, Copper, Molybdenum
  • Alloy 20 / Carpenter 20Cb3 / Alloy 20Cb3
  • 551 MPa min
  • 241 MPa min
  • Petrochemical, Chemical Processing, Pharmaceuticals, Power Generation
  • Rods, Bars, Cut Sizes
  • ASTM B473, ASME SB-473
  • Excellent resistivity to sulphuric acid and chloride environments
  • 1443C (2629F)
  • Rockwell B85 max

Product Description

Alloy 20 (Carpenter 20Cb-3 / Alloy 20Cb3) is an austenitic iron-nickel-chromium superalloy engineered for resistance to sulfuric acid and stress-corrosion cracking.

Chemical Composition Data

Element Minimum Value Maximum Value Nominal / Role
Nickel 32.50 35.00 Austenitic matrix & SCC resistance
Chromium 19.00 21.00 Oxidation & acid corrosion resistance
Iron 31.00 44.00 Balance base element
Copper 3.00 4.00 Sulfuric acid resistance enhancement
Molybdenum 2.00 3.00 Pitting & crevice corrosion resistance
Niobium + Tantalum 0.48 1.00 Carbide stabilization (8 x C minimum)
Carbon 0.00 0.07 Intergranular corrosion control
Manganese 0.00 2.00 Deoxidizer / structural stabilizer
Silicon 0.00 1.00 Processing additive
Phosphorus 0.00 0.035 Impurity limit
Sulfur 0.00 0.035 Impurity limit

Material & Standard Specification Identifiers

  • UNS Designation: N08020

  • Werkstoff Number: 2.4660

  • EN Standard Designation: NiCr20CuMo / X1NiCrMoCuN25-20-7

  • Common Industry Names: Alloy 20, Carpenter 20Cb3, 20Cb-3, Incoloy Alloy 20

  • ASTM Specifications: B463, B473, B464, B366, B462, B472, B729

  • ASME Specifications: SB-463, SB-473, SB-464, SB-366, SB-462

  • AWS Welding Consumables: ER320LR, E320LR-16

Physical & Mechanical Property Data

Property Parameter Metric Value Imperial Value
Density 8.05 0.291
Melting Point Range Low 1350 2460
Melting Point Range High 1430 2600
Tensile Strength Annealed 550 to 620 80 to 90
Yield Strength 0.2 Percent Offset 240 to 300 35 to 43
Elongation Percentage in 50mm 30 to 45 30 to 45
Hardness Brinell Maximum 217 217
Hardness Rockwell B Maximum 95 95

Scrap Recycling & Material Sorting Data

  • Scrap Trade Category: High-Nickel Superalloy / Austenitic Stainless Scrap

  • Primary Valuation Drivers: High Nickel content (32.50 to 35.00), Copper content (3.00 to 4.00), and Molybdenum content (2.00 to 3.00)

  • XRF Analyzer Verification Windows: Ni 32 to 36, Cr 19 to 21, Cu 3 to 4, Mo 2 to 3, Nb 0.5 to 1.0

  • Common Industrial Scrap Source Forms: Process piping, heat exchanger tubes, pump impellers, valves, pickling hooks, and mixing tanks



Exceptional Corrosion Resistance

Alloy 20 scrap exhibits superior resistivity against sulfuric acid and chloride solutions, making it an ideal choice for harsh industrial environments. This feature is especially valuable in industries where processing corrosive substances poses significant challenges. Its durable nature contributes to increased equipment lifespan and reduced maintenance costs.


Versatile Industrial Applications

Due to its robust corrosion resistance, Alloy 20 scrap is widely employed in the petrochemical, chemical processing, power generation, and pharmaceutical industries. Its adaptability allows it to be fashioned into rods, bars, or bespoke sizes, supporting a range of fabrication needs and ensuring compatibility with various system requirements.

FAQ's of Alloy 20 Scrap / Carpenter 20Cb3 Scrap / Alloy 20Cb3 Scrap:


Q: How can Alloy 20 Scrap be used in industrial applications?

A: Alloy 20 Scrap is well suited for manufacturing and repairing equipment exposed to aggressive chemicals, such as tanks, piping, and reactor vessels in petrochemical, chemical, pharmaceutical, and power generation industries.

Q: What benefits does Alloy 20 Scrap offer over standard stainless steel?

A: Alloy 20 Scrap provides superior resistance to sulfuric acid and chloride-induced corrosion, outperforming many conventional stainless steels in aggressive chemical environments and thus extending equipment service life.

Q: When should I choose Alloy 20 Scrap for my fabrication needs?

A: Alloy 20 Scrap should be selected when the application involves exposure to strong acids (especially sulfuric acid) and chloride stress corrosion, or when regulations demand highly resistant materials to ensure process safety.

Q: Where can I source Alloy 20 Scrap in India?

A: You can acquire Alloy 20 Scrap from reputable dealers, exporters, fabricators, manufacturers, suppliers, producers, and retailers across India, offering custom lengths, thickness, and packaging as per your requirements.

Q: What is the typical process for recycling or repurposing Alloy 20 Scrap?

A: The scrap is collected, verified for purity (99%), cleaned of non-metallic impurities, and then either melted and recast or refashioned into new rods or bars, maintaining ASTM B473 and ASME SB-473 compliance.

Q: Is Alloy 20 Scrap safe to use in pharmaceutical and food processing environments?

A: Yes, its high purity and excellent resistance to corrosion make Alloy 20 Scrap a suitable and safe choice for sensitive environments like pharmaceuticals and food processing, where product contamination must be avoided.

Q: What forms does Alloy 20 Scrap typically come in?

A: Alloy 20 Scrap is generally available in the form of rods, bars, and cut sizes, with random or specified lengths and thicknesses as required by the user.

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