Name: ASTM A213 TP321 Seamless U Bend Heat Exchanger Tube for High-Temperature Service
Brand: Yuhong Group Co.,Ltd
SKU: ASTM A213 TP321, ASTM A213 TP321H
Price: 1000000.00 USD
Availability: InStock

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ASTM A213 TP321 Seamless U Bend Heat Exchanger Tube for High-Temperature Service

Detalhes do produto:

Lugar de origem:	China
Marca:	YUHONG
Certificação:	ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Número do modelo:	ASTM A213 TP321, ASTM A213 TP321H

Condições de Pagamento e Envio:

Quantidade de ordem mínima:	100kg
Preço:	Negociável
Detalhes da embalagem:	Caixa / pacote / pacote de madeira com madeira com tampa de plástico
Tempo de entrega:	10-90 dias
Termos de pagamento:	T/T,L/C
Habilidade da fonte:	1000 toneladas por mês

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Descrição de produto detalhada

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ASTM A213 TP321 seamless heat exchanger tube

U bend heat exchanger tube for high temperature

seamless heat exchanger tube with warranty

ASTM A213 TP321 Seamless U Bend Heat Exchanger Tube for High-Temperature Service

Product Description

1. Introduction & Standard Specification
This product refers to seamless U-bend tubes made from TP321 austenitic stainless steel, manufactured in strict compliance with the ASTM A213/A213M standard. This specification is the global benchmark for seamless ferritic and austenitic alloy-steel tubes designed for critical service in boilers, superheaters, and heat exchangers.

The "U-bend" geometry is engineered to absorb thermal expansion within the heat exchanger, reducing stress on the tube sheets and shell. The TP321 grade is specifically stabilized with titanium to prevent carbide precipitation during high-temperature exposure, making it ideal for intermittent heating in the range of 427°C to 816°C.

2. Material & Key Features: TP321 Stainless Steel
TP321 is a titanium-stabilized evolution of the classic 304 stainless steel. The addition of titanium (Ti) is its defining characteristic, which combines with carbon to prevent the formation of chromium carbides at grain boundaries. This imparts exceptional resistance to intergranular corrosion, particularly after welding or exposure to high temperatures, a common failure point in heat exchanger applications.

3. Chemical Composition & Mechanical Properties
The tables below summarize the key material properties as per standard specifications and typical values.

Typical Chemical Composition (Weight %):

Element	Content (%)	Notes
Carbon (C)	≤ 0.08	Low carbon content aids weldability and corrosion resistance.
Chromium (Cr)	17.00 - 19.00	Provides basic corrosion resistance and high-temperature strength.
Nickel (Ni)	9.00 - 12.00	Stabilizes the austenitic structure and enhances toughness.
Titanium (Ti)	≥ 5(C%) up to 0.70	Key stabilizing element for preventing intergranular corrosion.
Manganese (Mn)	≤ 2.00
Silicon (Si)	≤ 1.00
Phosphorus (P)	≤ 0.045
Sulfur (S)	≤ 0.030

Room Temperature Mechanical Properties:

Property	Standard Requirement	Typical Value
Tensile Strength	≥ 520 MPa	≥ 515 MPa
Yield Strength (0.2% Offset)	≥ 205 MPa	≥ 205 MPa
Elongation (%)	≥ 40	≥ 35

4. Product Applications
ASTM A213 TP321 U-bend tubes are the material of choice for demanding thermal and corrosive environments across industries:

Petrochemical & Refining: Ideal for heat exchangers, condensers, and high-temperature transfer lines handling corrosive media like sulfuric acid or petroleum fractions.
Power Generation: Used in boiler systems, superheaters, and feedwater heaters in fossil fuel and nuclear power plants due to their high-temperature creep strength.
Chemical Processing: Essential for reactors, pyrolysis tubes, and heat recovery systems where equipment undergoes frequent heating cycles.
Other Industries: Also found in aerospace (engine components), shipbuilding, and food/pharmaceutical processing where high hygiene and corrosion resistance are required.

ASTM A213 TP321 Seamless U Bend Heat Exchanger Tube for High-Temperature Service 0