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Created with Pixso. ASME SA182 F11 Self Reinforced Nozzle High Temp Pressure Vessel Components

ASME SA182 F11 Self Reinforced Nozzle High Temp Pressure Vessel Components

Brand Name: YUHONG
Model Number: SA182 F11 Self-Reinforeced Nozzle
MOQ: 1pc
Price: Negotiation
Delivery Time: According to the quantity
Payment Terms: T/T, L/C
Detail Information
Place of Origin:
China
Certification:
ASME, CCS, ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, ISO 9001-2015
Product:
Nozzle
Type:
Self-Reinforeced Nozzle
Material:
SA182 F11
Application:
Pressure Vessel
Packaging Details:
Plywood case
Supply Ability:
TBD
Highlight:

ASME SA182 Self Reinforced Nozzle

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High Temp Pressure Vessel Components

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ASME SA182 pressure vessel nozzle

Product Description

 

ASME SA182 F11 Self-Reinforced Nozzle: High-Temp Pressure Vessel Part​

 

 

 

ASME SA182 F11 Self-Reinforced Nozzle is a critical high-pressure/high-temperature (HP/HT) component used in boilers, reactors, and power/petrochemical systems. It integrates reinforcement directly into the nozzle forging, eliminating the need for external reinforcement pads. This design enhances structural integrity while simplifying fabrication.

 

 

Technical Details

 

1. Material: SA182 F11 Forged Steel

  • Composition (Key Elements):

    • Cr (1.00–1.50%), Mo (0.44–0.65%), C (0.05–0.20%)

    • Classes: Class 2 (most common), Class 3 (higher strength).

  • Mechanical Properties (Class 2, min.):

    • Tensile Strength: 415 MPa (60 ksi)

    • Yield Strength: 205 MPa (30 ksi)

    • Hardness: 121–174 HB

  • Temperature Limits:

    • Max Service: 595°C (1100°F) for creep resistance.

    • MDMT: As low as -30°C (-20°F) with proper PWHT & impact testing.

 

2. Self-Reinforced Design

  • Principle: Extra thickness at the nozzle-vessel junction provides reinforcement per ASME Sec. VIII Div. 1 (UG-37 to UG-45).

  • Reinforcement Zone:

    • Extends d (nozzle ID) or Rn + tn + t from the centerline.

    • Height: 2.5t or 2.5tn (whichever is smaller).

  • Advantages:

    • No external pad → Fewer welds, reduced corrosion risk, smoother flow.

    • Improved fatigue resistance at the junction.

 

3. Fabrication & Welding

  • Critical Steps:

    • Preheat: 200–300°C (400–600°F) to prevent cracking.

    • Welding: Use compatible consumables (e.g., E8018-B2).

    • PWHT Mandatory: 675–760°C (1250–1400°F) for stress relief.

      • Cooling Rate Control: Avoid temper embrittlement (375–575°C range).

  • NDT Requirements:

    • RT (radiographic) for welds + MT/PT (surface cracks) + UT (forgings).

 

4. Applications

  • Power plants (boiler drums, steam headers).

  • Petrochemical reactors & heat exchangers.

  • High-pressure turbine piping.

 

 

Advantages vs. Disadvantages

 

Pros

Cons

Fewer leak paths

Higher material cost

Simplified inspection

Strict PWHT requirements

No crevice corrosion (vs. pads)

Risk of temper embrittlement

Better fatigue performance

Weight increase

 

 

Key Considerations

  • Design Compliance: Must satisfy ASME Sec. VIII reinforcement calculations.

  • Impact Testing: Essential for low-temperature service (UG-84).

  • Quality Control: Traceability of F11 material certs (mill test reports).

 

 

Why Choose This Nozzle?

 

Ideal for HP/HT corrosive environments (e.g., steam service) where reliability and minimized maintenance are critical. The self-reinforced design excels in cyclic loading applications but demands rigorous fabrication oversight.

For project specifics, always cross-reference ASME BPVC Sec. VIII Div. 1 and applicable piping codes (B31.1/B31.3).

 

ASME SA182 F11 Self Reinforced Nozzle High Temp Pressure Vessel Components 0