ASTM B668 / ASME SB668 Alloy 20 Pipe Manufacturers & Supplier

Alloy 20 Pipe Manufacturers & Supplier

Alloy 20 Pipe, also known as Carpenter 20, is a high-performance austenitic stainless steel alloy engineered for superior resistance against sulfuric acid and aggressive corrosion environments. It is stabilized with columbium (niobium), which enhances resistance to intergranular corrosion and maintains mechanical strength under high-stress conditions. The alloy’s well-balanced composition—comprising nickel, chromium, molybdenum, and copper—provides outstanding weldability, strength, and workability. This makes ASTM B729 UNS N08020 alloy a top choice for industries such as petrochemicals, pharmaceuticals, marine, and food processing, where corrosion resistance and durability are crucial.

As one of the leading Alloy 20 Pipe Manufacturers in India, Solitaire Overseas is known for delivering high-quality piping solutions that meet global standards. We stock and supply a wide variety of B729 UNS N08020 pipes, available in both seamless and welded forms, tailored to your operational needs. Every Alloy 20 pipe is inspected for quality, packed securely, and accompanied by complete certification to ensure client confidence and traceability. For businesses seeking a reliable supplier offering performance and affordability, we also provide a transparent and regularly updated Alloy 20 Pipe Price List to help with project planning and procurement. Choose Solitaire Overseas for precision-engineered Alloy 20 piping solutions that consistently perform under the harshest industrial conditions.

Alloy 20 Pipes – Seamless, Welded, and ERW Variants

Alloy 20 Pipe, also referred to by designations such as UNS N08020 and B729 UNS N08020, is a highly durable austenitic stainless steel pipe designed to withstand extreme corrosion, particularly in environments containing sulfuric acid. Whether you require seamless, ERW, or welded variants, Alloy 20 consistently performs across demanding industries such as chemical processing, food and beverage production, pharmaceuticals, and marine engineering.

Solitaire Overseas, one of the top Alloy 20 Pipe Manufacturers in India, offers a wide range of Alloy 20 products to match various application requirements. We supply ASTM B729 UNS N08020 Seamless Pipes, ASTM B464 Welded Pipes, and JIS NW 20 Seamless Pipes in formats like round, square, and large-diameter. Each pipe variant is engineered for dimensional precision, high tensile strength, and excellent corrosion resistance — especially in high-pressure and elevated temperature applications.

As a globally trusted supplier based in Mumbai, Solitaire Overseas supports your procurement process with detailed MTCs, worldwide delivery, and a transparent, up-to-date Alloy 20 Pipe Price List to assist with cost planning. Our commitment to quality and customer satisfaction makes us a reliable partner for your industrial piping needs.

Quality Testing & Certifications for Alloy 20 Pipe

To ensure the highest standards of quality and performance, every Alloy 20 Pipe from Solitaire Overseas undergoes a rigorous suite of material tests prior to dispatch. These include mechanical testing, Positive Material Identification (PMI), chemical analysis, pitting resistance testing, flattening and flaring tests, as well as both micro and macro examinations. These procedures verify the pipe’s strength, corrosion resistance, and compliance with international specifications like ASTM B729 UNS N08020 and B729 UNS N08020, essential for reliability in critical applications.

As one of the trusted Alloy 20 Pipe Manufacturers, Solitaire Overseas ensures that each pipe delivers exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking—especially in chloride and acidic environments. This makes our pipes ideal for chemical processing, petrochemical plants, and marine-based systems. To reinforce quality assurance and traceability, we provide comprehensive documentation with every order, including MTCs, QAPs, welding procedures, heat treatment charts, and packing lists. Our customers also benefit from a transparent Alloy 20 Pipe Price List, enabling informed purchasing decisions aligned with technical and budgetary needs.

Specification

Specifications

ASTM B729, B464 / ASME SB729, SB464

Dimensions

ASTM, ASME and API

Outer Diameter

6.00 mm OD

Thickness

0.3mm – 50 mm

Schedule

SCH 10, SCH20, SCH30, SCH40, STD, SCH60, XS, SCH80, SCH120, SCH140, SCH160, XXS

Size

1/8″NB TO 30″NB IN

Types

Seamless, Welded, ERW, EFW

End

Plain End, Beveled End, Treaded

Form

Round Pipes, Square Pipes, Rectangular Pipe

Alloy 20 Pipes Equivalent Grades

STANDARD	WERKSTOFF NR.	UNS	AFNOR	EN
Alloy 20	N08020	2.4660	Z2NCUD31-20AZ	NiCr20CuMo

Alloy 20 Pipes Chemical Composition

Element	Alloy 20
C	0.07 max
Mn	2.00 max
Si	1.00 max
S	0.035 max
Co	3 – 4
Ni	32 – 38
Cr	19 – 21
Fe	29.85 min
Mo	2 – 3
P	0.045 max

Alloy 20 Pipes Mechanical & Physical Properties

Element	Alloy 20
Density	8.1 g/cm3
Melting Point	1443 °C (2430 °F)
Tensile Strength	Psi -80,000, MPa -551
Yield Strength (0.2%Offset)	Psi - 35,000, MPa - 241
Elongation	30 %

Alloy 20 Pipe Price List

At Solitaire Overseas, one of the trusted Alloy 20 Pipe Manufacturers, we offer transparent and competitive pricing to cater to industrial demands across sectors such as chemical processing, food production, pharmaceuticals, and marine engineering. Each Alloy 20 Pipe is priced based on precise specifications including size, type (seamless or welded), and applicable standards like ASTM B729 UNS N08020 and B729 UNS N08020.
Our comprehensive Alloy 20 Pipe Price List below serves as a reference guide to help buyers plan their procurement more effectively. Please note that these prices are indicative and may vary depending on market fluctuations, order volume, and custom fabrication requirements. For the most accurate pricing, we recommend requesting a detailed quote based on your project specifications.

Alloy 20 Seamless & Welded Pipes – Price Estimate (Per Meter)

Pipe Type	Size (OD x WT in mm)	Standard	Approx. Price (INR/m)	Approx. Price (USD/m)
Alloy 20 Seamless Pipe	25 x 2.5	ASTM B729	₹1,200 – ₹1,500	$14 – $18
Alloy 20 Seamless Pipe	50 x 3.0	ASTM B729	₹2,300 – ₹2,600	$27 – $32
Alloy 20 Welded Pipe	50 x 3.0	ASTM B464	₹1,800 – ₹2,000	$21 – $24
Alloy 20 Seamless Pipe	100 x 6.0	ASTM B729	₹4,500 – ₹5,000	$53 – $59
Alloy 20 Welded Pipe	150 x 8.0	ASTM B464	₹6,200 – ₹6,800	$73 – $80
Alloy 20 Square Pipe	40 x 40 x 3.0	Custom	₹2,000 – ₹2,400	$24 – $28

Note: Prices are approximate and vary with nickel content, finish, order volume, and delivery location. Contact us for real-time quotations and MTCs.

Related Products Of Alloy

Alloy 20 Tubes	Alloy Steel T1 Tubes	Alloy Steel T2 Tubes	Alloy Steel T12 Tubes
Alloy Steel T23 Tubes	Alloy Steel T92 Tubes	Alloy Steel P1 Pipes	Alloy Steel P2 Pipes
Alloy Steel P12 Pipes	Alloy Steel P23 Pipes	Alloy Steel P92 Pipes	Alloy Steel Tubes
Alloy Steel T5 Tubes	Alloy Steel T9 Tubes	Alloy Steel T11 Tubes	Alloy Steel T22 Tubes
Alloy Steel T91 Tubes	Alloy Steel Pipes	Alloy Steel P5 Pipes	Alloy Steel P9 Pipes
Alloy Steel P11 Pipes	Alloy Steel P22 Pipes	Alloy Steel P91 Pipes	Alloy Steel Heat Exchanger Condenser Tubes
Alloy Steel T5 Heat Exchanger Condenser Tubes	Alloy Steel T9 Heat Exchanger Condenser Tubes	Alloy Steel T11 Heat Exchanger Condenser Tubes	Alloy Steel 22 Heat Exchanger Condenser Tubes
Alloy Steel 91 Heat Exchanger Condenser Tubes	Alloy 20 Heat Exchanges Condenser Tubes	Alloy 28 Heat Exchanger Condenser Tubes	Alloy Steel Boiler Tubes
Alloy Steel T5 Boiler Tubes	Alloy Steel T9 Boiler Tubes	Alloy Steel T11 Boiler Tubes	Alloy Steel T22 Boiler Tubes
Alloy Steel T91 Boiler Tubes	Alloy 28 Tubes

Alloy 20 Pipe Application

Alloy 20 Pipes in various Application Industries

Food Processing Industry

Fabrication Industry

Oil and Gas Industry

Chemical Industry

Plumbing

General Purpose Applications

Heating

Water Supply Systems

Power Plant

Paper & Pulp Industry

Why Choose Solitaire Overseas For Alloy 20 Pipe?

At Solitaire Overseas, one of the leading Alloy 20 Pipe Manufacturers, we bring decades of metallurgical knowledge and global distribution expertise in supplying Alloy 20 Pipe solutions. Our specialized team caters to industries operating in chemically aggressive environments by offering ASTM B729 UNS N08020 and ASTM B464-compliant seamless and welded pipes. These pipes are engineered to resist sulfuric acid, chloride-induced stress corrosion, and crevice corrosion—making them ideal for high-performance applications. Every Alloy 20 Pipe we supply is backed by material test certificates (MTCs), PMI verification, and complete traceability documentation, ensuring full compliance with international standards.

What distinguishes us from other Alloy 20 Pipe Manufacturers is our ability to deliver consistent quality, flexible customizations, and reliable turnaround. From round and square forms to ERW and large-diameter pipes, we maintain a ready stock in Mumbai to meet urgent global demands. Clients frequently reference our transparent Alloy 20 Pipe Price List, which reflects current market rates and customized order specs. As a trusted ISO-certified exporter, we serve over 50 countries and empower industries like petrochemicals, food processing, pharmaceuticals, and power with corrosion-resistant piping built on the strength of B729 UNS N08020 specifications.

FAQ For Alloy 20 Pipe

What is Alloy 20 pipe?

Alloy 20 pipe is a corrosion-resistant stainless steel pipe made from a nickel-iron-chromium alloy with additions of copper and molybdenum. It’s specifically designed to resist sulfuric acid and other aggressive chemicals, making it ideal for chemical, food, and pharmaceutical industries.

What is Alloy 20 material grade?

Alloy 20, also known as UNS N08020 or WNR 2.4660, is an austenitic alloy designed for high resistance to sulfuric acid. It includes nickel, iron, chromium, molybdenum, and copper, offering excellent corrosion, pitting, and crevice resistance in harsh chemical environments.

Which is better, Alloy 20 or Hastelloy?

Both Alloy 20 and Hastelloy offer excellent corrosion resistance, but Hastelloy (especially C276) performs better in more aggressive and high-temperature environments. Alloy 20 is more cost-effective and ideal for sulfuric acid, while Hastelloy is superior for highly oxidizing and reducing conditions.

Who is the manufacturer of Alloy 20 pipes in India?

Solitaire Overseas is a leading manufacturer and supplier of Alloy 20 pipes in India, offering seamless and welded forms per ASTM B729 and B464 standards. With global certifications, precise dimensions, and fast delivery, they serve diverse industries worldwide.

What is the difference between Alloy 20 and 316?

Alloy 20 offers superior resistance to sulfuric acid, pitting, and stress corrosion cracking compared to SS 316. While 316 is suitable for general corrosion resistance, Alloy 20 is preferred in highly acidic or chloride-rich environments where 316 may fail prematurely.

Which alloy is stronger?

The strength of an alloy depends on its composition and application. In general, Hastelloy and Inconel have higher mechanical strength than Alloy 20 or SS 316. However, Alloy 20 provides a balanced combination of corrosion resistance and strength for chemical industry needs.