Alloy 20 Products

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If you want to use the most appropriate material for aggressive acidic environments, you’ll find that is the power of Alloy 20. Alloy 20 (UNS N08020) is a nickel-iron-chromium austenitic alloy that is a superior choice in chemical processing, fertilizer, pharmaceutical, and marine applications for resistance to sulfuric acid, phosphoric acid, and chloride-induced stress corrosion cracking. Kalpaturu Piping is able to manufacture & supply a full range of precision-engineered Alloy 20 pipes, tubes, sheets, plates, fittings, flanges & fasteners with ASTM, ASME & international quality standards. All our shipments are accompanied by mill test certificates, third-party inspection support, and traceability, allowing engineers and procurement teams to be confident with their specifications. From our in-house production capacity to our global supply chain, we are able to deliver standard stock items or custom-fabricated Alloy 20 parts for any critical project, delivered anywhere in the world, on time. Take a look at our products below, review the specifications, and get a competitive quote today.

Table of Content

• Alloy 20 Products List
• What Is Alloy 20?
• Alloy 20 Material Specifications
• Alloy 20 Chemical Composition
• Alloy 20 Mechanical Properties
• Alloy 20 Physical Properties
• Alloy 20 Equivalent Material
• Alloy 20 Applications & Industries Served
• Alloy 20 vs Other Corrosion-Resistant Alloys
• Manufacturing Process & Quality Control
• Certifications & Standards
• Alloy 20 Price Per Kg
• FAQs About Alloy 20

Alloy 20 products List

What Is Alloy 20?

Alloy 20, also known as Alloy 20Cb-3 or Carpenter 20, is a nickel-iron-chromium austenitic alloy specifically developed to combat sulfuric acid corrosion at a range of concentrations and temperatures. Stabilised with niobium (columbium), it resists intergranular corrosion after welding and offers strong performance in phosphoric acid, nitric acid, and chloride-bearing media. Its balanced composition also prevents chloride-ion stress-corrosion cracking, a common failure mode in standard austenitic stainless steels such as 304 and 316.

Key identity markers engineers look for:

• UNS Number: N08020
• Werkstoff/DIN Number: 2.4660
• Common trade names: Alloy 20, Nickel 20, Carpenter 20, Incoloy 20, 20Cb-3

Alloy 20 Applications & Industries Served

Thanks to its balanced corrosion resistance, Alloy 20 products from Kalpaturu Piping are widely specified across:

• Chemical processing & sulfuric acid plants
• Fertilizer manufacturing units
• Pharmaceutical and food processing equipment
• Oil & gas production and refining
• Marine and offshore installations
• Power generation plants
• Pulp and paper processing
• Dye and pigment manufacturing

Manufacturing Process & Quality Control

Every Alloy 20 product from Kalpaturu Piping passes through a controlled manufacturing workflow: raw material verification against mill certificates, precision cutting and forming, seamless or welded pipe production, solution annealing, and final dimensional and surface inspection. Non-destructive testing methods — including hydrostatic testing, eddy current testing, and radiography — are applied as per the applicable ASTM/ASME specification before packing and dispatch.

• Raw material verification & PMI (Positive Material Identification) testing
• Precision manufacturing to ASTM/ASME dimensional tolerances
• Solution annealing for optimal corrosion resistance
• Hydrostatic, eddy current & radiographic testing
• Third-party inspection (TPI) on request
• Export-standard packing to prevent transit damage

Certifications & Standards

• ISO 9001:2015 certified manufacturing quality management
• Compliance with ASTM, ASME, and DIN/EN standards
• Mill Test Certificates as per EN 10204 3.1 / 3.2
• Third-party inspection support: Bureau Veritas, SGS, Lloyd’s Register
• PED / CE marking support available on request

Alloy 20 Price Per Kg

Alloy 20, which is also referred to asCarpenter® 20 or Incoloy® 20, is a material whose price varies under the influence of a number of factors such as shape (pipes, sheets, bars or fittings) size, quantity, and variability of the market prices of nickel, chromium, and copper. Prices are frequently quoted on a case-by-case basis to ensure that the correct quotations are received in terms of material grade, sizes, and location of delivery of the Alloy 20 products in bulk orders or customized goods. Being a trusted supplier of Alloy 20, we are capable of delivering on competitive prices without losing quality.

FAQ’s About Alloy 20