ASTM B729 UNS N08020 Pipe

1. Standard: ASTM B729, ASME SB 729
2. OD Sizes: 1/2” - 48”
3. Thickness: SCH5~SCHXXS
4. Type: Seamless / Welded / ERW / EFW / SAW

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Product Introduction

ASTM B729 UNS N08020 Seamless Pipe, with the addition of copper, is an alloy with excellent resistance to sulfuric acid. In addition to sulfuric acid, our Alloy 20 seamless pipe is also resistant to chloride stress corrosion cracking (SCC) at temperatures up to about 150 degrees Celsius. A certain amount of niobium is added to Alloy 20 cb3 to prevent sensitization. We are an Alloy 20 supplier with 15+ export experience, contact us for more information and free quotes!

ASME SB 729 UNS N08020 Standard:

ASTM B729: Specification for Seamless UNS N08020, UNS N08026, and UNS N08024 Nickel-Alloy Pipe and Tube

ASME B36.10: Specification for welded and seamless wrought steel pipe for high or low temperature and pressures.

ASME B36.19: Specification for stainless steel pipes

Nickel Alloy 20 Tube Pipe Specification

Specification	ASTM B729, ASME SB 729
Standard	GB, EN, DIN, DS, DTD, ASTM, SAE, ASME, AISI, JIS, TOCT, NF, AMS
Tolerances	+/- 0.030; tolerance may vary depending on grade and thickness
Seamless Size	15 NB to 150 NB IN
Welded Size	1/2" OD - 12" OD
Length	Upto 30 meters, Single Random, Double Random & Required Length End: Plain End, Beveled End, Treaded, or Custom Cut Lengths
WT	0.40 mm - 12.70 mm
Schedule	SCH 5, 10S, 10, 30, 40S, 40, 80, 80S, XS, 160, XXH
Manufacturing	EFW, CDW, ERW, LSAW, DOM, Fabricated, Seam-Welded, Seamless, CEW, Redrawn, Welded
Form	Round, Square, Oval, Rectangular, Coil, "U" Shape, Hydraulic & Honed Tubes

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20cb3 Carpenter 20 Seamless Tube Chemical Composition

Alloy 20	Ni	C	Mo	Mn	Si	Fe	Cu	S	P	Cr
Alloy 20	32 – 38	0.02 max	2 – 3	1 – 2	0.7 max	Bal	3 – 4	0.005 max	0.02 max	19 – 21

ASTM B729 UNS N08020 Applications

Chemical & Petrochemical Processing: Sulfuric acid pickling lines, tank manufacture, and storage equipment.
Pharmaceutical & Food Processing: Handling highly corrosive organic acids and mixing compounds.
Oil & Gas Extraction: Downhole fluid transport lines and gas scrubbers.
Power Generation & Marine: Flue gas desulfurization (FGD) systems and heat exchangers handling marine environments.

ASTM B729 Carpenter 20cb3 Pipe Testing

Hydrostatic Testing & NDT: 100% non-destructive electrical or hydrostatic testing to ensure wall integrity.
Mechanical Testing: Rigorous tensile, flattening, flaring, and grain-size analysis.
Third-Party Inspection: We fully support independent inspections (SGS, TUV, BV, counters like Lloyd's) according to your project requirements.
Delivery Condition: Material can be provided in Solution Annealed, Stabilized Annealed, or As-Annealed conditions.

FAQ

Q: About ASTM B729 UNS N08020 pipe price per kg?

A: Prices range between $30 to $45 per kg, vary depending on size, wall thickness, supplier etc.

Q: How long does your delivery time take?

A: Delivery time is within 5-21 days

Q: Is There Sample Service?

A: Samples Are Provided Free Of Charge

Q: What Is The Minimum Order Quantity?

A: No Minimum Order Quantity

Q: How to pack the products?

A: The inner layer has a waterproof paper outer layer and is fixed with a fumigation wooden pallet.

Q: Exported Countries

A: Brazil, South Africa, Indonesia, India, Singapore, Malaysia, Iran, Russia, UAE, Chile, Laos, etc

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