Equipment for local and volumetric PWHT (heat treatment of welded joints)
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OST 36-50-86

11.12.2018 14:15:00
This regulatory document was approved by the "Ministry of installation and special construction works" of the USSR on March 6, 1986. and set the date for establishment on January 1, 1987.

This standard applies to steel process pipelines with nominal pressure to 250 MPa (2500 kgs / cm2) and establishes a typical process for heat treatment of welded pipe joints for transporting liquids and gas with different physical and chemical properties, including process pipelines.

The standard does not apply to trunk pipelines, steam and hot water pipelines, as well as pipelines transporting oxygen.

Although this regulatory document exists since the times of the Soviet Union and still its status is “Undefined”. This means that if your field of activity coincides with the field of application of this industry standard then you can use it.

Our education centre actively uses OST 36-50-86 in its training activities, not forgetting about the new regulatory documents of various departments and customers (STO Gazprom, ASME, etc.).

We can also offer you a complete set of equipment, consumables and spare parts for local heat treatment of welded joints of any configuration.


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