Alloy 20 Plate Supplier & Stockist
Alloy 20 Plates
UNS N08020 / Carpenter 20
Excellent resistance to sulfuric acid corrosion · High strength & durability in harsh environments · Resistant to pitting and crevice corrosion
ASTM B463 / ASME SB463
UNS N08020
EN 2.4660 / NiCr20CuMo
Alloy 20Cb-3
📋 Table of Contents
HRS Ferritic · Trusted Global Supplier
What is Alloy 20 Plate?
Alloy 20 Plate is a nickel-iron-chromium-based alloy designed specifically for excellent resistance to sulfuric acid and other aggressive chemical environments. It is also known as Carpenter 20 and is widely used in industries where corrosion resistance is critical. This alloy offers superior mechanical strength, resistance to stress corrosion cracking, and excellent performance in both high-temperature and corrosive conditions, making it highly suitable for demanding industrial applications.
- Excellent resistance to sulfuric acid corrosion
- High strength and durability in harsh environments
- Resistant to pitting and crevice corrosion
- Suitable for high-temperature applications
- Long service life with minimal maintenance
- Ideal for chemical and pharmaceutical industries
HighDurable
Working Mechanism
How Alloy 20 Plate Works
Alloy 20 Plates function by forming a stable and protective oxide layer on the surface, which prevents corrosion and degradation when exposed to harsh chemicals. The combination of nickel, chromium, and molybdenum enhances resistance to pitting, crevice corrosion, and acidic attack, especially in sulfuric acid environments.
32-38%
Nickel Content
19-21%
Chromium Content
≥ 620
Tensile MPa
0.5-100
Thickness (mm)
Composition Analysis
Metallurgical Characteristics of Alloy 20 Plate
Key alloying elements that contribute to the high-performance corrosion resistance of Alloy 20.
Ni
Nickel
Enhances corrosion resistance and toughness.
Cr
Chromium
Provides oxidation resistance.
Mo
Molybdenum
Improves resistance to pitting corrosion.
Cu
Copper
Offers protection against sulfuric acid.
Fe
Iron
Provides structural strength.
C
Carbon
Maintains hardness and durability.
Technical Data
Specifications for Alloy 20 Plate
ASTM B463 · ASME SB463 · UNS N08020 · EN 2.4660
| Specification | Details |
|---|---|
| ASTM / ASME | ASTM B463 / ASME SB463 (Plate, Sheet, and Strip) |
| UNS | UNS N08020 |
| EN | 2.4660 / NiCr20CuMo |
| DIN | 2.4660 / NiCr20CuMo |
| ISO | NiCr20CuMo |
| JIS | No exact equivalent (nearest Ni-Cr-Mo alloys used) |
| Product Form | Sheets / Plates |
| Thickness Range | 0.5 mm to 100 mm |
| Standard Widths | 1000, 1219, 1250, 1500, 1800, 2000, 2500, 3000, 3500 mm, etc |
| Standard Lengths | 2000, 2440, 2500, 3000, 5800, 6000 mm, etc |
| Custom Cut | Available as per customer requirement (Width & Length) |
| Surface Finish | Hot Rolled (HR), Cold Rolled (CR), Annealed & Pickled (AP) |
| Supply Condition | Solution Annealed |
| Cutting Methods | Plasma, Laser, Waterjet, Oxy Propane |
| Packaging | Bundled, Wooden Plates, Bubble wraps, Customized |
Inventory
Available Stock & Product Forms
Flat Products
Precision sheets, heavy plates, and shim sheets available in Alloy 20.
Coils & Strips
Slitting coils, perforated coils, and thin foils from 0.05 mm thickness.
Specialty Forms
Circles, rings, custom-cut blanks, and chequered tread plates.
Edge Types
Mill edge, slit edge, round edge, and square edge conditions available.
Nickel (Ni)
32.0–38.0% — Enhances corrosion resistance and toughness.
Chromium (Cr)
19.0–21.0% — Provides oxidation resistance and stability.
Molybdenum (Mo)
2.0–3.0% — Improves resistance to pitting and crevice corrosion.
Copper (Cu)
3.0–4.0% — Key for resistance against sulfuric acid attacks.
Tensile Strength
≥ 620 MPa — High ultimate tensile strength for structural safety.
Yield Strength
≥ 300 MPa — 0.2% Offset Yield Strength for reliability.
Elongation
≥ 30% — Good ductility for industrial fabrication and forming.
Hardness
≤ 217 HB — Optimized hardness for long service life.
Product Range
Types of Alloy 20 Stainless Steel Plate
Available in multiple finishes and conditions for diverse engineering needs.
Hot Rolled Alloy 20 Plates
Cold Rolled Alloy 20 Plates
Polished Alloy 20 Plates
Industrial Grade Plates
Custom Cut Alloy 20 Plates
Application Sectors
Industries We Serve
Sugar Industry
Global cane and beet processing requiring thermal endurance.
Power Industry
Electricity generation and distribution systems.
Ship Building
Marine propulsion and exhaust components.
Mechanical & Plant Engineering
Industrial machinery design solutions.
Food, Beverage & Dairy
Processed food manufacturing environments.
Oil & Gas Plant
Refinery furnace units and burner assemblies.
Chemical Composition
Chemical Details of Alloy 20 Plate
Typical chemical composition (wt %) for Alloy 20 (UNS N08020).
| Element | Composition |
|---|---|
| Nickel (Ni) | 32.0 – 38.0 % |
| Chromium (Cr) | 19.0 – 21.0 % |
| Iron (Fe) | Balance |
| Molybdenum (Mo) | 2.0 – 3.0 % |
| Copper (Cu) | 3.0 – 4.0 % |
| Niobium (Nb) + Tantalum (Ta) | 8 × C to 1.00 % (max) |
| Carbon (C) | ≤ 0.07 % |
| Manganese (Mn) | ≤ 2.00 % |
| Silicon (Si) | ≤ 1.00 % |
| Phosphorus (P) | ≤ 0.045 % |
| Sulfur (S) | ≤ 0.035 % |
Performance Data
Mechanical Properties of Alloy 20 Plate
≥ 620 MPa
Tensile Strength
Minimum Ultimate Tensile Strength (90 ksi)
≥ 300 MPa
Yield Strength
0.2% Offset Yield Strength (45 ksi)
≥ 30 %
Elongation
High ductility for forming (in 50 mm / 2 in)
≤ 217 HB
Hardness (Brinell)
Optimized hardness for maximum performance
~ 200 GPa
Elastic Modulus
Structural stiffness for industrial loads
≥ 100 J
Impact Toughness
Excellent performance (Charpy V-notch, RT)
Cost Information
Price List for Alloy 20 Plate
Price Factors
What affects the Alloy 20 price?
- Raw material price fluctuations
- Plate thickness and dimensions
- Surface finish requirements
- Market demand and availability
- Import duties and logistics costs
- Custom cutting and fabrication readiness
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Competitive rates · High quality · Global delivery
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International Standards
Equivalent Grades for Alloy 20 Plate
Cross-reference table for international designations of Alloy 20.
| Standard | Equivalent Grade / Designation |
|---|---|
| UNS | N08020 |
| ASTM / ASME | B463 / SB463 |
| Werkstoff (DIN) | 2.4660 |
| EN (European) | NiCr20CuMo |
| BS (British) | NA 20 |
| AFNOR (France) | NFG NiCr20CuMo |
| GOST (Russia) | Н08020 (approximate) |
| Trade Names | Alloy 20, Carpenter 20, Incoloy® 20 |
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Ready Stock Availability
- Flat Products: Precision sheets, heavy plates, shim sheets
- Coils & Strips: Slitting coils, perforated coils, thin foils from 0.05 mm
- Speciality Forms: Circles, rings, custom-cut blanks, chequered plates
- Edge Conditions: Mill edge, slit edge, round edge, square edge
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Quality & Logistics
- Testing: PMI, Ultrasonic (UT), Radiography (RT), corrosion testing
- Certification: EN 10204 3.1 / 3.2, NACE compliance on request
- Global Supply: USA, UAE, Saudi Arabia, Singapore, Indonesia, Europe
- Export Packaging: ISPM-15 fumigated wooden crates, moisture-protected packaging
Use Cases
Applications of Alloy 20 Plate
✈️ Aerospace
Used in aircraft components requiring corrosion resistance and strength.
⛽ Oil & Gas
Suitable for pipelines and equipment exposed to aggressive environments.
🌾 Fertilizer Industry
Resistant to chemicals used in fertilizer manufacturing and acid handling.
⚡ Electric & EV
Offers durability and conductivity for electrical components and battery sets.
🏗️ Construction
Used in structural components requiring long-term durability and resistance.
🧪 Chemical Processing
Widely used in reactors, tanks, and pipelines handling aggressive acids.
🚗 Automotive
Applied in high-performance components exposed to heat and chemicals.
💊 Pharmaceuticals
Ensures safe and contamination-free processing in sterile environments.
Why HRS Ferritic
Why Choose HRS Ferritic for Alloy 20 Plates?
HRS Ferritic is a dedicated Alloy 20 Plate Supplier and Stockist in India, delivering high-performance alloy solutions with reliability and excellence across global industrial sectors.
Trusted Alloy 20 Plate Supplier in India
Reliable Stockist with ready inventory
Leading Importer of premium materials
Competitive pricing with consistent quality
Fast delivery and global logistics support
Customized solutions as per industry needs
Globally certified manufacturer sources
Full technical documentation & certification
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Cities We Supply In India
New Delhi · Ahmedabad · Jaipur · Surat · Salem · Gandhinagar · Varanasi · Haldia ·
Bhiwandi · Tiruppur · Jamnagar · Thiruvananthapuram · Rajahmundry · Visakhapatnam · Bhubaneswar ·
Vijaywada · Rajkot · Bharuch · Coimbatore · Nagpur · Raipur · Cochin · Ludhiana · Panipat · Durgapur ·
Agra · Indore · Kuala Lumpur · Al Jubail · Pimpri-Chinchwad · Sharjah · Karachi · Chandigarh · Bogota · Muscat · Madrid · Tehran · Granada · Jakarta · Los Angeles · Rio de Janeiro · Melbourne · Cairo · New York · Busan · Milan · Montreal · Singapore · Sydney · Dubai · Lagos · Gurgaon · Port-of-Spain · Hong Kong · Navi Mumbai · Secunderabad · Bangkok · Aberdeen · Bhopal · Atyrau · Caracas · Jamshedpur · Thane · Faridabad · Ahvaz · Ahmedabad · Hanoi · Bengaluru · Dallas · Moscow · Surat · Riyadh · Rajkot · Al Khobar · Hyderabad · Haryana · Ernakulam · Gimhae-si · Algiers · Thiruvananthapuram · Brisbane · Calgary · Mumbai · Chennai · Courbevoie · Toronto · Vung Tau · Ankara · Doha · Nagpur · Howrah · Ranchi · Perth · Noida · Houston · Kolkata · Chiyoda · Mexico City · Edmonton. Geoje-si · Abu Dhabi · Santiago · New Delhi · Colombo · Ludhiana · Lahore · Coimbatore · Ho Chi Minh City · Manama · Ulsan · London · Visakhapatnam · Jaipur · Kuwait City · Seoul · Istanbul · Pune · Baroda · Kanpur · La Victoria · Jeddah · Dammam · Petaling Jaya · Nashik · Vadodara ·jamnagar ·hazira · jubail industrial city · Ajman · Capetown · San Francisco · sao paulo · Barcelona · Ahmedi · Muscat · Madrid · Birmingham · Johannesburg.
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Countries We Export To
Saudi Arabia · Qatar · Canada · Sri Lanka · Iran · Nigeria · Bangladesh · Oman · UAE ·
Turkey · Kuwait · Venezuela · Africa · Singapore · Netherlands · United Kingdom · Mexico · Malaysia ·
United States · Australia · Japan Saudi Arabia · Iran · Iraq · UAE · Qatar · Bahrain · Oman · Kuwait · Turkey · Yemen · Syria · Jordan · Cyprus · Nigeria · Algeria · Angola · South Africa · Libya · Egypt · Sudan · Equatorial Guinea · The Republic Of Congo · Gabon · USA · Canada · Mexico · Panama · Costa Rica · Puerto Rica · Trinidad And Tobago · Jamaica · Bahamas · Denmark · Russia · Norway · Germany · France · Italy · Uk · Spain · Ukraine · Netherland · Belgium · Greece · Czech Republic · Portugal · Hungary · Albania · Austria · Switzerland · Slovakia · Finland · Ireland · Croatia · Slovenia · Malta · India · Singapore · Malaysia · Indonesia · Thailand · Vietnam · South Korea · Japan · Sri Lanka · Maldives · Bangladesh · Myanmar · Taiwan · Cambodia · Argentina · Bolivia · Brazil · Chile · Venezuela · Colombia · Ecuador · Guyana · Paraguay · Uruguay · New Zealand · Romania · Puerto Rico · Nepal · Kenya · Afghanistan · Lithuania · Belarus · Zimbabwe · Israel · Azerbaijan · Poland · Australia · Morocco · Philippines.
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Frequently Asked Questions
Quick answers to common queries about Alloy 20 Plates.
Larger plate sizes require more raw material and processing effort, which increases pricing offered by an Alloy 20 Plate Supplier, especially for custom dimensions.
Yes, thicker Alloy 20 Plates consume more material and involve additional manufacturing processes, impacting costs from an Alloy 20 Plate Stockist.
Special surface finishes like polished or cold-rolled require extra processing steps, which increase the final cost of Alloy 20 Plates supplied by an Alloy 20 Plate Supplier.
Yes, fluctuations in global nickel and alloy prices directly impact pricing offered by any Alloy 20 Plate Importer or stockist.
Alloy 20 Plates are widely used in chemical processing, pharmaceutical equipment, and acid-handling systems due to their superior corrosion resistance and durability.
Alloy 20 offers exceptional resistance to sulfuric acid and harsh chemicals, making it a preferred choice from an Alloy 20 Plate Supplier for chemical processing applications.
Yes, Alloy 20 Plates maintain stability and strength at elevated temperatures, making them ideal products available from an Alloy 20 Plate Stockist.
Sourcing from certified manufacturers ensures durability, compliance, and long service life, which is why choosing a trusted Alloy 20 Plate Importer is essential.
HRS Ferritic
