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Post Weld Heat Treatment Furnace

Heat Treatment Furnace
Post Weld Heat Treatment Furnace (PWHT Furnace) is a specialized industrial heating system designed to reduce residual stresses, improve metallurgical structure, and restore material ductility in welded components. By precisely controlling temperature and holding times, PWHT furnaces ensure welded structures meet code requirements for safety, strength, and long-term performance.
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  • Free combination on demand to meet various working conditions

Features.

  • Precision Temperature Control

    Accurate control up to ±5°C with uniform heat distribution across the furnace chamber.

  • Flexible Heating Zones

    Multiple independent zones for consistent and controlled heat treatment of large or complex weldments.

  • Custom Configurations

    Available in batch, walk-in, or bogie-hearth designs tailored to customer requirements.

  • Robust Construction

    High-density ceramic fiber insulation, durable steel casing, and reinforced structure for long service life.

  • Advanced PLC System

    Programmable logic controller for automatic temperature ramping, soaking, and cooling cycles with data logging.

Specifications (Typical Range).

  • Operating Temperature

    300°C – 1050°C (572°F – 1922°F)

  • Temperature Uniformity

    ±5°C or better

  • Heating Elements

    Electric resistance or gas-fired options

  • Chamber Sizes

    Customizable from 1m³ to 100m³ or more

  • Control System

    PLC with touch screen HMI, thermocouple inputs, and chart recorder

  • Insulation

    High-performance ceramic fiber modules (low heat loss, fast ramp-up)

Applications.

  • Oil & Gas Pipelines

    Stress relief of girth welds and elbows

  • Pressure Vessels

    Heat treatment of shell, head, and nozzle welds

  • Structural Steel Fabrication

    Bridge components, heavy machinery frames

  • Power Generation

    Boiler tubes, steam turbine welds

  • Shipbuilding & Aerospace

    Large-scale assemblies requiring high-integrity welding

Why Choose Our PWHT Furnace?

  • We provide fully engineered PWHT systems designed for high throughput, repeatability, and compliance with ASME, API, and other international codes. Our furnaces are trusted by industries demanding precision and performance in post-weld heat treatment operations.

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