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ASME SA213 T11 T12 Alloy Steel Seamless Tube For Hairpin Heat Exchangers

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ASME SA213 T11 T12 Alloy Steel Seamless Tube For Hairpin Heat Exchangers

Brand Name : Yuhong

Model Number : Hairpin heat exchangers

Certification : ASME, ASTM, ASME U Stamp

Place of Origin : China

MOQ : 1000 kgs

Price : 0-9999USD

Payment Terms : T/T, L/C, D/A

Supply Ability : 800Tons/ month

Delivery Time : 30-60DAYS

Packaging Details : Wooden export crates

Name : Heat exchanger tube

Material : Alloy steel

Standard : ASME SA213

Grade : T11 T12

Diameter : 3/4"(19.05MM)

Thickness : BWG14(2.11MM)

Application : hairpin heat exchanger

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ASME SA213 T11 T12 ALLOY STEEL SEAMLESS TUBE FOR HAIRPIN HEAT EXCHANGERS

YUHONG T11 and T22 alloy tubes are special alloy steel tubes used in high temperature and high pressure applications, primarily in boilers, heat exchangers, and other applications requiring high temperature and pressure resistance.

They are briefly summarized below: About high Temperature Resistance, both alloys are suitable for high temperature environments, but T22 performs better at extreme temperatures. For corrosion resistance: Both have excellent corrosion resistance and perform well in many industrial applications. The choice between T11 and T22 is based on the specific temperature, pressure requirements and budget.

T11&T22 Alloy Steel Seamless Tube Chemical Composition

Grade

C≤

Mn

P≤

S≤

Si≤

Mo

T11

0.05~0.15

0.30~0.60

0.025

0.025

0.50~1.0

0.44~0.65

Grade C≤ Mn P≤ S≤ Si≤ Mo
T22 0.05~0.15 0.30~0.60 0.025 max 0.025 max 0.50 max 0.87~1.13

Alloy Steel T11&T22 Seamless Tubes Mechanical Properties

Grade Tensile Strength, MPa Yield Strength, MPa Elongation, % Hardness, HB
T11 415 min 205 min 30 min 179 max

Grade Tensile Strength, MPa Yield Strength, MPa Elongation, % Hardness, HB
T22 415 min 220 min 30 min 163 max

Alloy Steel Seamless Seamless Tube Outside Diameter and Tolerance

Outside Diameter OD Tolerance WT Tolerance Ovality Tolerance Cut Length Tolerance
OD≤ 12, 7 mm ± 0, 13 mm ± 15 % – + 3, 18 mm, – 0 mm
12, 7 mm < OD ≤ 38, 1 mm ± 0, 13 mm ± 10 % max, 1, 65 mm + 3, 18 mm, – 0 mm
38, 1 mm < OD ≤ 88, 9 mm ± 0, 25 mm ± 10 % max, 2, 41 mm + 4, 76 mm, – 0 mm

ASME SA213 T11 T12 Alloy Steel Seamless Tube For Hairpin Heat Exchangers

(picture shows the u bend tube bundle of hair pin heat exchangers)

The use of alloy tubes in hairpin heat exchangers (also known as U-type heat exchangers or U-tube heat exchangers) is of great significance, and the following are a few of their key aspects:


1. Overview of hairpin heat exchangers


A hairpin heat exchanger consists of a series of U-shaped or hairpin-shaped tubes in which a fluid flows inside the tube and exchanges heat with another fluid outside the tube. This design allows the heat exchanger to have a high heat transfer efficiency and a small footprint, and is suitable for environments with high temperature, high pressure or corrosive media.


2. Material Advantages


Alloy tube materials such as stainless steel, nickel-based alloys and copper alloys are widely used in hairpin heat exchangers because of their superior physical and chemical properties:
High Temperature Resistance: Alloy tubes are able to withstand the high temperature operating conditions commonly found in hairpin heat exchangers, ensuring the safety and stability of the equipment.
Corrosion resistance: when dealing with chemical or corrosive fluids, the corrosion resistance of alloy tubes significantly improves the life and reliability of the heat exchanger and reduces maintenance costs.


3. Heat exchange efficiency


The higher thermal conductivity and hydrodynamic properties of alloy tubes enable hairpin heat exchangers to achieve higher efficiency in the heat exchange process. The smoothness of the inner wall of the alloy tube reduces fluid resistance and optimizes flow, further improving heat transfer efficiency.

Alloy Steel Seamless Tubes Application Industries

  • Off-Shore Oil Drilling Companies
  • Power Generation
  • Petrochemicals
  • Gas Processing
  • Specialty Chemicals
  • Pharmaceuticals
  • Pharmaceutical Equipment
  • Chemical Equipment
  • Sea Water Equipment
  • Heat Exchangers
  • Condensers

ASME SA213 T11 T12 Alloy Steel Seamless Tube For Hairpin Heat Exchangers


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