Heatco Vietnam is proud to be a pioneer in providing heat treatment services for spherical tank welds according to international standards ASME (American Society of Mechanical Engineers). With a leading position in the market, we constantly innovate and improve the quality of our services, becoming a trusted partner for many large enterprises in the country and Southeast Asia.
What is Post Weld Heat Treatment (PWHT)?
Post Weld Heat Treatment is a process applied to welds with high-strength base steel. Post-weld heat treatment is applied after welding to reduce residual stress, control the hardness of the joint area, and increase the life of the joint. If post-weld heat treatment is not performed after welding with some high-strength steels, the residual stresses combined with stresses during operation may exceed the material’s limit stress. This leads to weld failure, the risk of cracking, or increased sensitivity to crack.
The effect of PWHT is post-weld heating and residual stress relief.
Why Choose Heatco Vietnam?
Heatco is the first company in Vietnam capable of providing PWHT following ASME standards for spherical tanks. Customers could feel secure about safety and efficiency. With advanced technology and modern equipment, we can PWHT spherical tanks of all sizes, from small to super large, meeting all customer requirements.
Benefits of Using Heatco’s Spherical Tank Heat Treatment Service:
- ASME-standard quality: The heat treatment process complies with ASME SECTION VIII, DIVISION 2 standards, ensuring the quality of the weld after heat treatment.
- Heat treatment equipment: Heatco currently owns more than 10 Oil and Gas burners with a maximum capacity of 5,000,000 kcal/hr to meet all detailed requirements of heat treatment equipment.
- Diverse sizes: We can heat treat spherical tanks of all sizes, from small tanks to large tanks.
- Experienced team of experts: Heatco owns a team of leading engineers and experts in the field of heat treatment, committed to bringing absolute satisfaction to customers in terms of quality and price.
Heatco’s Spherical Tank Heat Treatment Process
With extensive experience in the field of Heat Treatment in general and Spherical Tank heat treatment in particular, Heatco has completed PWHT for hundreds of Spherical Tanks from big clients in the domestic market and Southeast Asia. Spherical tank PWHT procedure of Heatco Vietnam follows ASME and strictly complies with the requirements of the standard, helping to ensure construction quality and operational safety. The main steps include:
1. Technical assessment: We conduct an inspection and assessment of the drawing and actual condition of the tank before composing the PWHT procedure and methods statement to ensure safety and efficiency.
2. Heat treatment according to ASME standards: With modern equipment capacity, we carry out the PWHT procedure, heating and cooling the tank. Ensure uniform temperature, meeting the requirements of the given procedure.
Contact Heatco Vietnam
Heatco Vietnam is always committed to bringing customers the most optimal spherical tank heat treatment solution with superior quality and absolute safety. Contact us now for advice and professional heat treatment services!”
