ASTM A213 TP321 Stainless Steel Seamless Exchanger Tube

ASTM A213 TP321 seamless cold-drawn heat exchanger tube is a high-performance, precision-engineered tubular product designed for high-temperature and corrosive environments. It is most commonly used in heat exchangers, superheaters, and boilers.
GNEE supplies ASTM A213 TP321 seamless tubes made from stainless steel billets that are cold-drawn and cold-rolled, then heat-treated at specific temperatures. The finished seamless tubes are primarily used in boiler, heat exchanger, and superheater systems.
We produce ASTM A213 TP321 seamless stainless steel tubes with surface treatments including annealing and pickling. We offer a wide range of sizes with tight and precise dimensional tolerances. Unless an average wall thickness is required, the wall thickness tolerance is the plus of the minimum thickness.

What is the difference between ASTM A213 TP321 stainless steel tube and 304?
ASTM A213 TP321 is a stabilized austenitic stainless steel tube suitable for high-temperature applications, including heat exchangers, boilers, and superheaters. Its titanium content prevents chromium carbide precipitation, providing excellent corrosion resistance in the 800-1500°F (427-816°C) range while offering improved stress crack resistance and ductility compared to 304 grade.

 

ASTM A213 TP 321 Seamless Tube Specifications

Standard	ASTM A213/ASME SA213
Grade	TP321 stainless steel
Tube Type	Seamless Tube
Finishes	Annealing Pickling Bright Annealing
Outside Diameter	1/8″ – 5″
Thickness	0.015″ – 0.500″
Length	Fixed And Random Length
Application	Boiler, Heat Exchanger, Super Heater

 

ASTM A213 TP321 Stainless Steel Seamless Exchanger Tube Chemical Composition

TP321 Chemical Composition(%)
Element	C	Si	Cr	Mn	P	Ni	Ti
Range	≤0.080	≤0.75	17.00-20.00	≤2.00	≤ 0.045	9.00-13.00	≥5*C

 

ASTM A213 TP321 Stainless Steel Seamless  Tube Mechanical Properties

TP321 Mechanical Properties
Tensile Strength	Yield Strength	Hardness	Elongation
515MPa	≥205MPa	≤ 192HB	≥40%

 

Equivalent Material of TP321

ASTM/AISI	UNS NO	EN	ISO	JIS	GOST
TP321	UNS32100	1.4541	X6CrNiTi18-10	SUS321	08X18H10T

 

Temperature Range of UNS S32100 Round Tubes

Properties (MPa)		Temperature Range
		600 °C	700 °C	800°C
Creep resistance	Rz/1000	200	88	30
	Rz/10000	142	48	15
	Rz/100000	65	22	10
Creep limit	R1/1000	110	45	15
	R1/10000	85	30	10

 

Application of ASTM A213 TP321 Seamless Cold Drawn Exchanger Tube

1. Power industry: Superheater and reheater tubes of power plant boilers (capable of coping with steam temperatures exceeding 600℃);
2. Petrochemical and chemical industries: Cracking furnace tubes and heat exchanger tubes (used to handle high-temperature corrosive process fluids);
3. Heat exchange equipment field: Various high-temperature heat exchangers and condensers (especially suitable for working conditions with the risk of intergranular corrosion);
4. Others: Key components of high-temperature pressure-bearing equipment (such as high-temperature pressure vessels, etc.).

 

If you have a project need for 321 stainless steel pipe, we welcome your order. GNEE has a large inventory of popular products for you to choose from. Available in both seamless and welded configurations, contact our factory today for detailed chemical composition and free samples. We offer competitive pricing and excellent service.Email: sales@gneestainless.com

ASME SA213 TP321 Tube Types

Value Added Services	Cutting Beveling Threading Polishing (Electro & Commercial) Draw & Expansion as per required Size & Length Destructive and Non Destructive Ultrasonic Testing Annealed & Pickled Bending
Processing Service	Bending, Welding, Decoiling, Punching, Cutting, Moulding
Technique	ASTM A213 321 SS Cold drawn, Cold rolled, Hot rolled, Extrusion Tube

Packaging and Delivery

Packaging: We use moisture-proof and shock-resistant packaging, and use wooden pallets or plastic wrap for safe transportation.

Delivery Time: Standard delivery time for in-stock products is 7-15 days; custom orders are 20-30 days.