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Heat Exchanger Tube

ASTM A213 T9 Alloy Steel Seamless Tube ASME SA213 Grade T9 U Bend Heat Exchanger Tube

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ASTM A213 T9 Alloy Steel Seamless Tube ASME SA213 Grade T9 U Bend Heat Exchanger Tube

Brand Name:	YUHONG
Model Number:	ASTM A213 T9 Alloy Steel Seamless U Bend Tube
MOQ:	500kgs
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:

Heat Exchanger Tube

Standard:

ASTM A213, ASME SA213

Material:

OD:

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

Thickness:

BWG10-25

Radius:

Can Custom

Length:

Single Random, Double Random & Cut Length

Highlight:

ASTM A213 T9 Alloy Steel Seamless Tube, U Bend Heat Exchanger Tube

Product Description

ASTM A213 T9 Seamless Alloy Steel U Bend Heat Exchanger Tube for High-temperature Services

A seamless ferritic alloy steel tube (9% chromium, 1% molybdenum) manufactured to ASTM A213 / ASME SA213 specifications, formed into a U‑shape (U‑bend) for use in shell and tube heat exchangers, boilers, and high‑temperature service applications.
The “T9” grade offers high‑temperature oxidation resistance, creep strength, and resistance to hydrogen attack. U‑bend configuration accommodates thermal expansion without requiring expansion joints. After cold bending, the tube must receive post‑bend heat treatment (stress relief or annealing) to restore mechanical properties and eliminate residual stresses.

Equivalent Grades of ASTM A213 T9 Alloy Steel Seamless Tube U Bend Heat Exchanger Tube

Grade	UNS	Steel Number	Trade Name
T9	S50400	1.7386	9Cr-1Mo

Chemical Composition of ASTM A213 T9 Alloy Steel Seamless Tube U Bend Heat Exchanger Tube

Grade	C	Mn	P	S	Si	Mo
T9	0.15 max	0.30~0.60	0.025	0.025	0.25-1.0	0.90~1.10

Mechanical Properties of ASTM A213 T9 Alloy Steel Seamless Tube U Bend Heat Exchanger Tube

Grade	Tensile Strength, MPa	Yield Strength, MPa	Elongation, %	Hardness, HB
T9	415 min	205 min	30 min	179 max

Key Characteristics of Grade T9

Oxidation Resistance: Excellent scaling resistance up to approximately 650°C (1200°F) .
Creep Strength: High creep rupture strength due to the Molybdenum addition.
Hydrogen Attack: Suitable for high-temperature hydrogen service in refineries (often used in the hydrogen reformer section and heat exchangers).
Fabricability: While it has good ductility, T9 is a hardenable steel. Cold bending (U-bending) requires careful attention to the bending radius and subsequent heat treatment.

Application

These tubes are primarily used in critical high-temperature services within:

Petrochemical Refineries: Hydrogen reformer units, hydrocrackers, and catalytic reformers.
Fired Heaters: Where resistance to high-temperature sulfur corrosion is required.
Power Generation: Superheaters and reheaters in high-pressure boilers.
Shell and Tube Heat Exchangers: Specifically in environments where the tube side fluid is at high temperatures or contains corrosive agents.

Ratings & Review

Overall Rating

4.3

Based on 50 reviews for this supplier

Rating Snapshot

The following is the distribution of all ratings

5 stars

33%

4 stars

67%

3 stars

2 stars

1 stars

All Reviews

Kumar

India Nov 8.2025

Helpful (2)

No corrosion issues so far, though we're running below dew point carefully. Installation was straightforward—tube sheets lined up, ends clean, rolling into the header went smooth.

Marek

Poland Sep 5.2025

Helpful (2)

Heat transfer has been consistent since day one. Our outlet temperatures are steady, and the exchanger is performing exactly as we expected.

Rajesh Kumar

India Apr 19.2025

Helpful (3)

Cost and reliability are key for Indian refineries. We installed these fin tubes in Mumbai’s cooling towers, achieving 16% energy savings versus local suppliers. ASTM A213 T11 compliance ensured no failures during monsoon humidity (90%+ RH), and the low price saved $8K upfront.

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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