Working Pressure Calculations

The weld factors used in the calculations below are according to our approvals from authorities. Internal vacuums are not taken into account in the calculations.

Pipes and tubes
Calculations according to EN 13480-3 or ASME B31:3 in all available dimensions and grades.

Elbows

Tees
Calculations according to EN 13480-3 in all available dimensions and grades.

Reducers

News

mar 2019

NORSOK Approval for OSTP Finland Oy Ab

feb 2019

OSTP - A Trio of Birthdays 2019

aug 2018

OSTP Lab – achieves expanded SWEDAC APPROVAL

News Archive

Vacancies

mar 2019

Open application , Pietarsaari/Jakobstad

As our business develops, we constantly need knowledgeable and motivated personnel, such as welding operators, metal workers, maintenance installers, electric automation installers, etc. You can fill in an open application where you can define what kind of job you are looking for.

apr 2019

Open recruitments, Pietarsaari/Jakobstad

We are currently looking for employees for the following tasks. All applications must be submitted via the Barona website.

- Material, welding & forming specialist
- Logistics manager
- The welder
- Electrician for shift work
- Welding operator

All applications can be found on the Barona website (www.careers.barona.fi) with the keyword OSTP.

Vacancy Archive

Customer Feedback

As part of OSTP’s ongoing drive to improve customer service and the overall experience of doing business with OSTP we have launched a simple Feed-Back link on our website. Please use this facility to report both negative and positive experiences – both are equally important to us to continue to develop appropriately to your needs.

Feedback