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ASTM A213 UNS S32100 / TP321 Stainless Steel Tube EN 1.4541 Heat Exchanger Tube
ASTM A213 UNS S32100 / TP321 Stainless Steel Tube EN 1.4541 Heat Exchanger Tube
ASTM A213 UNS S32100 / TP321 Stainless Steel Tube EN 1.4541 Heat Exchanger Tube
ASTM A213 UNS S32100 / TP321 Stainless Steel Tube EN 1.4541 Heat Exchanger Tube
ASTM A213 UNS S32100 / TP321 Stainless Steel Tube EN 1.4541 Heat Exchanger Tube
ASTM A213 UNS S32100 / TP321 Stainless Steel Tube EN 1.4541 Heat Exchanger Tube
Specifications
Packaging Details :
Ply-wooden Case /Iron Case/ Bundle with plastic Cap
Material :
TP321 / UNS S32100 / 1.4541
Model Number :
ASTM A213 TP321 Stainless Steel Seamless Tube
Payment Terms :
L/C,T/T
Thickness :
BWG10-25
Length :
Single Random, Double Random & Cut Length
MOQ :
1000kgs
Product Name :
Stainless Steel Seamless Tube
High Light :
ASTM A213 TP321 Stainless Steel Seamless Tube, EN 1.4541 Heat Exchanger Tube
Delivery Time :
7 DAYS
OD :
1/4" , 3/8", 1/2", 5/8", 3/4", 1", 1.1/4", etc.
End :
Plain End, Beveled End
Brand Name :
YUHONG
Certification :
ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Standard :
ASTM A213, ASME SA213
Place of Origin :
CHINA
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.

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

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Product Detail
Packaging Details :
Ply-wooden Case /Iron Case/ Bundle with plastic Cap
Material :
TP321 / UNS S32100 / 1.4541
Model Number :
ASTM A213 TP321 Stainless Steel Seamless Tube
Payment Terms :
L/C,T/T
Thickness :
BWG10-25
Length :
Single Random, Double Random & Cut Length
Contact Supplier
ASTM A213 UNS S32100 / TP321 Stainless Steel Tube EN 1.4541 Heat Exchanger Tube
ASTM A213 UNS S32100 / TP321 Stainless Steel Tube EN 1.4541 Heat Exchanger Tube
ASTM A213 UNS S32100 / TP321 Stainless Steel Tube EN 1.4541 Heat Exchanger Tube

YUHONG HOLDING GROUP CO., LTD

Verified Supplier
3 Years
ningbo
Since 1990
Business Type :
Manufacturer, Importer, Exporter, Trading Company, Seller, Other
Main Products :
Stainless Steel Heat Exchanger Tube, Studded Tube, Duplex Stainless Steel Heat Exchanger Tube
Total Annual :
50M-70M
Employee Number :
50~800
Certification Level :
Verified Supplier
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