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ASTM A213 T9 Chromium-Molybdenum Alloy Seamless Heat Exchanger Tubes

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ASTM A213 T9 Chromium-Molybdenum Alloy Seamless Heat Exchanger Tubes

Brand Name : Yuhong

Model Number : ASTM A213 T9

Certification : ABS, BV, DNV, CCS, LR

Place of Origin : China

MOQ : 500KG

Price : Negotiable

Payment Terms : TT, LC

Supply Ability : 4150 Ton Per Month

Delivery Time : 20-80 days

Packaging Details : Plywooden case with Iron Frame

Grade : P1, P2, P5, P9, P11, P12, P22, P91, T1, T2, T5, T9, T11, T12, T22, T91

Temperature Range : High Temperature

Material : Alloy Steel

Surface Finish : Polished, Pickled, Bright Annealed

Tube Type : Heat Exchanger

Shape : Round

Pressure Rating : High

Product : Furnace and Heat Exchanger Tubes

Ends : PE, BE

Size And Length : According to clients' need

Testing : UT, ET, HT, PMI

Product Type : Heat Exchanger Tube

Application : Heat Exchanger, Boiler, Superheater, Condenser

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Product Introduction: ASTM A213 T9 Chromium-Molybdenum Alloy Seamless Heat Exchanger Tubes

1. Material & Chemical Composition

ASTM A213 T9 tubes are crafted from a chromium-molybdenum (Cr-Mo) alloy steel, engineered for exceptional heat resistance and structural stability in high-temperature heat exchange systems. Their chemical composition adheres strictly to ASTM standards:

Element Content Range Function
Carbon (C) 0.15-0.25% Enhances high-temperature strength
Chromium (Cr) 8.00-10.00% Improves oxidation and corrosion resistance
Molybdenum (Mo) 0.90-1.10% Boosts creep resistance at elevated temps
Manganese (Mn) ≤0.60% Aids in grain refinement
Silicon (Si) ≤0.50% Enhances oxidation resistance
Phosphorus (P) ≤0.025% Minimized to prevent brittleness
Sulfur (S) ≤0.025% Controlled to reduce corrosion risk

2. Mechanical Properties

Designed for extreme thermal stress, these tubes deliver superior mechanical performance in high-heat environments:

Property Value Advantage in Applications
Tensile Strength ≥515 MPa Resists rupture under pressure
Yield Strength ≥205 MPa Maintains integrity under load
Elongation (in 50mm) ≥30% Accommodates thermal expansion
Maximum Operating Temp 650°C (1202°F) Ideal for high-temperature heat exchangers

3. Equivalent Materials & Standards

For global project compatibility, ASTM A213 T9 aligns with these international equivalents:

Standard Material Grade Region
ASTM A213 T9 Cr-Mo Alloy Seamless USA
DIN 17175 10CrMo9-10 Europe
JIS G3462 STBA 26 Japan
GB 5310 12Cr1MoVG China

4. Processing Technology

Our ASTM A213 T9 tubes undergo precision manufacturing to ensure reliability:

  1. Seamless Production: Hot-rolled from alloy billets, ensuring uniform wall thickness and no weak seams.
  2. Solution Annealing: Heat-treated at 900-980°C to optimize grain structure and enhance creep resistance.
  3. Cold Finishing: Optional cold drawing for tight dimensional tolerances (±0.3% on diameter).
  4. Quality Validation: 100% ultrasonic testing, eddy current inspection, and hydrostatic pressure testing (at 30% above design pressure).

5. Application Scenarios

Perfect for high-temperature heat exchange systems in:

  • Petrochemical Industry: Refinery heat exchangers, reformers, and hydrocrackers.
  • Power Generation: Boiler superheaters, reheaters, and turbine cooling systems.
  • Chemical Processing: High-temperature reactors and process heat exchangers.

6. Product Advantages

  • Extreme Temp Resistance: Maintains strength at up to 650°C, outperforming standard carbon steel tubes.
  • Creep Resistance: Cr-Mo alloy minimizes deformation under long-term high-temperature stress.
  • Corrosion Resistance: Chromium content resists oxidation and chemical attack in harsh environments.
  • Seamless Reliability: Eliminates leak risks, critical for high-pressure heat exchange applications.

7. FAQ

Q1: Can these tubes be customized for specific lengths or wall thicknesses?
A: Yes, we offer diameters from 12mm to 168mm, wall thicknesses from 1.5mm to 12mm, and cut-to-length options (1-12m) with precision end finishes.

Q2: What certifications are provided with each order?
A: All tubes include ASTM A213 certification, mill test reports (MTR), and optional ASME BPVC Section I/II stamps for pressure vessel applications.

Q3: How do these compare to carbon steel tubes in high-heat applications?
A: ASTM A213 T9 offers 30% higher creep resistance and 50% better oxidation resistance than carbon steel, extending service life in temperatures above 450°C.

8. About Yuhong Holding Group Co., Ltd

With 20 years of export expertise to 80+ countries, Yuhong is ranked among China’s top 5 finned tube exporters. Beyond finned tubes, we specialize in high-performance boiler tubes, heat exchanger tubes, and custom alloy solutions. Our 55 production lines, 110+ skilled workers, and 20,000㎡ facility—equipped with advanced heat treatment and testing equipment—ensure compliance with global standards (ASTM, ASME, DIN).

We deliver on-time, with 24/7 technical support and tailored solutions.

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ASTM A213 T9 Chromium-Molybdenum Alloy Seamless Heat Exchanger Tubes


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