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Heat Exchanger Tube

ASTM A213 UNS S32100 / TP321 Stainless Steel Tube EN 1.4541 Heat Exchanger Tube

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ASTM A213 UNS S32100 / TP321 Stainless Steel Tube EN 1.4541 Heat Exchanger Tube

Brand Name:	YUHONG
Model Number:	ASTM A213 TP321 Stainless Steel Seamless Tube
MOQ:	1000kgs
Packaging Details:	Ply-wooden Case /Iron Case/ Bundle with plastic Cap
Payment Terms:	L/C,T/T

Detail Information

Product Description

Ratings & Reviews

Detail Information

Place of Origin:

CHINA

Certification:

ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008

Product Name:

Stainless Steel Seamless Tube

Standard:

ASTM A213, ASME SA213

Material:

TP321 / UNS S32100 / 1.4541

1/4" , 3/8", 1/2", 5/8", 3/4", 1", 1.1/4", Etc.

Thickness:

BWG10-25

Length:

Single Random, Double Random & Cut Length

Plain End, Beveled End

Highlight:

ASTM A213 TP321 Stainless Steel Seamless Tube, EN 1.4541 Heat Exchanger Tube

Product Description

ASTM A213 TP321 / UNS S32100 Stainless Steel Seamless Tube Heat Exchanger Tube

ASTM A213/ASME SA213 defines seamless austenitic stainless-steel tubes for boilers, superheaters, and heat exchangers. Grade TP321 (UNS S32100), equivalent to EN 1.4541, is the titanium-stabilized variant of Type 304. The titanium addition (≥5×(C+N)) prevents sensitization by forming stable titanium carbides, eliminating chromium depletion at grain boundaries. This provides outstanding resistance to intergranular corrosion, especially during welding or service within 425°C–815°C. These tubes offer high creep strength and oxidation resistance up to ~900°C. Supplied solution-annealed, they meet 515 MPa minimum tensile strength. They are used in refinery heaters, chemical processing, and power-generation exchangers requiring high-temperature stability.

Equivalent Grade of ASTM A213 UNS S32100 / TP304 / EN 1.4541 Stainless Steel Seamless Tube

STANDARD	WERKSTOFF NR.	UNS	JIS	EN
SS 321	1.4541	S32100	SUS 321	X6CrNiTi18-10

Chemical Composition (%) of ASTM A213 UNS S32100 / TP304 / EN 1.4541 Stainless Steel Seamless Tube

C	Mn	P	S	Si	Cr	Ni	Ti
0.08	2.00	0.045	0.03	1.00	17.0-19.0	9.0-12.0	5(C+N)-0.7

Mechanical Properties of ASTM A213 UNS S32100 / TP304 / EN 1.4541 Stainless Steel Seamless Tube

Tensile Strength min.	Yield Strength min.	Elongation (%)	Hardness max
75ksi (515MPa)	30ksi (205MPa)	35min	192HBW/200HV	90 HRB

Specific Requirements for Heat Exchanger Tubes

Under ASTM A213, tubes intended for heat exchangers must meet strict non-destructive testing (NDT) requirements:

Dimensions: Outside diameter (OD) ranges typically from 1/8" to 5" (3.2mm to 127mm), with minimum wall thicknesses.
Flattening Test & Flaring Test: Required to prove ductility for tube rolling into tube sheets.
Hydrostatic Test or NDT: Each tube must pass either a hydrostatic pressure test (without leakage) or an eddy-current / ultrasonic test (per ASME Section V).
Surface Finish: Must be free of scale, pits, and cracks. Internal bore cleanliness is critical for heat transfer efficiency.

Application

Refinery Crude Heaters: Especially where sulfur-containing fuels are burned (prevents polythionic acid stress corrosion cracking).
Chemical Process Industries: Handling organic and inorganic chemicals (excluding highly oxidizing acids like hot concentrated nitric acid at certain concentrations).
Power Generation: Superheaters and reheaters requiring high creep resistance.
Aerospace and Petrochemical: High-temperature fluid-to-air or fluid-to-fluid cooling/heating coils.

Ratings & Review

Overall Rating

4.0

Based on 50 reviews for this supplier

Rating Snapshot

The following is the distribution of all ratings

5 stars

33%

4 stars

33%

3 stars

33%

2 stars

1 stars

All Reviews

Marcus

Belize Jan 19.2026

Helpful (1)

It's genuine 321H — titanium-stabilized, so no worries about sensitization or intergranular corrosion during welding. Our welder said it welded nicely with no cracking.

B*a

South Africa Dec 9.2025

Helpful (2)

Been running about 6 months now in cyclic service. No leaks, no failures. Heat transfer still where it should be.

Salem

Oman Sep 24.2025

Helpful (2)

We checked a few before installation — wall thickness consistent, roundness good. Welded in without problems.

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Studded Tube

Solid Fin Tube

Serrated Finned tube

Embedded G Fin Tube

Extruded Fin Tube

Wound Fin Tube

Low Fin Tube

Square Fin Tube

Longitudinal Finned Tube

Enhanced Heat Transfer Tube

Fin Tube Support

Return Bend

Heat Exchanger Tube

Stainless Steel Heat Exchanger Tube

Duplex Stainless Steel Heat Exchanger Tube

Super Duplex Stainless Steel Heat Exchanger Tube

Nickel Alloy Steel Heat Exchanger Tube

Copper Alloy Steel Heat Exchanger Tube

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Alloy Steel Heat Exchanger Tube

U Bend Heat Exchanger Tube

Carbon Steel Heat Exchanger Tubes

Boiler Tube

Nickel Alloy Steel Boiler Tube

Stainless Steel Boiler Tube

Duplex Stainless Steel Boiler Tube

Alloy Steel Boiler Tube

Carbon Steel Boiler Tube

Fired Heater Parts

Baffle Plate

Tubesheet

products details

Studded Tube

Solid Fin Tube

Serrated Finned tube

Embedded G Fin Tube

Extruded Fin Tube

Wound Fin Tube

Low Fin Tube

Square Fin Tube

Longitudinal Finned Tube

Enhanced Heat Transfer Tube

Fin Tube Support

Return Bend

Heat Exchanger Tube

Stainless Steel Heat Exchanger Tube

Duplex Stainless Steel Heat Exchanger Tube

Super Duplex Stainless Steel Heat Exchanger Tube

Nickel Alloy Steel Heat Exchanger Tube