POST WELD HEAT TREATMENT SERVICE (PWHT)
BEYOND YOUR CLEANING SOLUTIONS
POST WELD HEAT TREATMENT
SERVICE (PWHT)
ADASTREAM provides specialized Pre-Heating and Post Weld Heat Treatment (PWHT) services to improve that enhance weld performance and ensure structural reliability across industries. Our reliable solutions support critical applications in the oil, gas, power, and petrochemical industries.
WHY CHOOSE ADASTREAM
WHY PHWT NEEDED
Reduces Residual Stresses
minimizes distortion and improves dimensional stability.
Prevents Cracking
lowers the risk of hydrogen-induced or stress-related cracking.
Improves Toughness
enhances ductility and impact strength of welded joints.
Enhances Mechanical Properties
restores toughness, hardness, and tensile strength.
Extends Service Life
improves reliability and durability of equipment in service.
Ensures Code Compliance
meets ASME, AWS, and other industry standards.
PWHT PROCUDURE
1
Preparation
- Clean the weld area
- Attach thermocouples
- Install with ceramic pack
- Wrapping with the insulation
2
Heating
- Heat at controlled rate
- Temperature rate as per requirement.
3
Holding
- Hold at the target temperature
- Duration as per requirement
4
Cooling
- Set the temperature cooling
- Monitor the cooling temperature.
5
Monitoring and Documentation
- Monitor all stage
- Record heating Profile
VALUE PWHT TO CUSTOMER
Improved Safety & Reliability
ensures welded components perform safely under high pressure and temperature.
Extended Equipment Life
reduces failures and prolongs the service life of critical assets.
Cost Savings
minimizes downtime, repairs, and unplanned shutdowns.
Compliance & Certification
meets industry codes (ASME, AWS, API) and client requirements.
Quality Assurance
provides confidence in weld strength and durability.
Operational Efficiency
reduces risk of defects, ensuring smooth and uninterrupted operations.
