ASTM B468 Alloy 20 Tube

1. Standard: ASTM B468, ASME SB 468
2. OD Sizes: 1/2” - 48”
3. Thickness: SCH5~SCHXXS
4. Process: Hot Work, Hot Rolled, Cold Rolled

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Product Introduction

ASTM B468 Alloy 20 welded tube is a popular choice for various applications that require resistance to corrosion in acids, such as sulfuric acid, phosphoric acid, and hydrochloric acid. As Carpenter 20 Cb3, and it is known for its excellent resistance to stress-corrosion cracking and pitting. Alloy 20 tubing is commonly used for applications in the chemical processing, food, pharmaceutical, and petrochemical industries. It is also used in heat exchangers, tanks, and piping systems that require high resistance to corrosion and erosion.

Carpenter 20 Tubing Material Standard:

ASTM B468-10(2020): Standard Specification for Welded UNS N08020 Alloy Tubes

ASME B36.19：Specification for stainless steel pipes

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

ASME SB468 N08020 Chemical Composition

Grade	C	Mn	Si	S	Cu	Ni	Cr	Fe	Mo	P
Alloy 20	0.07 max	2.00 max	1.00 max	0.035 max	3.0-4.0	32.0-38.0	19.0-21.0	29.85 min*	2.0-3.0	0.045 max

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Alloy 20 Equivalent Grades:

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

Alloy 20 Welded Tube Fabrication

Manufacturing process of 20cb3 alloy 20 welded tube involves forming the alloy plate sheet or strip into a tube shape and then welding the seam. This creates a strong, leak-proof hot rolled or cold drawn tube that can withstand high-pressure and high-temperature environments.

Available Dimensions of 2.4660 Alloy 20 Pipe & Tubes

ASTM B464 Alloy 20 welded pipes: 1/2″~6″, SCH 5S, SCH 10S, SCH 40S, SCH 80S (custom-design welded pipes up to 30″).
ASTM B468 Alloy 20 welded tubes: 1/2″~5″, wall thickness range: 0.38~12.7 mm.
Single random length(SRL), double random length(DRL), or specific cut length.

Carpenter 20 Stainless Steel Tubes Type

Product Form	Standard Specification
Alloy 20 Seamless Pipes & Tubes	ASTM B729
Alloy 20 Welded Pipes	ASTM B464
Alloy 20 Welded Tubes	ASTM B468

Incoloy Alloy 20 Suppliers Vailable Documentation

Commercial Invoice which includes HS Code
Packing List including net weight and gross weight, number of boxes, Marks and Numbers
Certificate of Origin legalized/attested by Chamber of Commerce or Embassy
Fumigation Certificates
Raw Material Test Reports
Material Traceability Records
Quality Assurance Plan (QAP)
Heat Treatment Charts
Test Certificates certifying NACE MR0103, NACE MR0175
Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2
Guarantee Letter
NABL approved Laboratory Test Reports
Welding Procedure Specification/Procedure Qualification Record, WPS/PQR
Form A for the purposes of the Generalized System of Preferences (GSP)