INFORMATION AT YOUR FINGERTIPS
Frequently Asked Questions
In this section, you'll find answers to the most common questions about our products, services, and procedures.
Our goal is to provide you with immediate and practical information to clarify any doubts without wasting time.
If you don't find the answer you're looking for, our team is always available to assist you and provide personalized support.
What does PREN mean in stainless steels?
PREN indicates the resistance of stainless steel to chloride corrosion. The higher the value, the greater the resistance.Difference between API 600 and API 602 valves?
API 600: large-size gate valves in cast steel.API 602: small-size forged steel valves for high pressure.
What is NACE MR0175/ISO 15156?
It defines requirements for metallic materials used in H₂S environments, preventing embrittlement and corrosion.What are EN 10204 3.1 and 3.2 certificates?
3.1: certificate issued by the manufacturer with batch tests.3.2: certificate validated by a third party or authorized inspector.
Differences between Duplex and Super Duplex?
Duplex: good mechanical strength and corrosion resistance.Super Duplex: higher chromium, molybdenum, and nitrogen → higher PREN, excellent seawater resistance.
Difference between SDV and ESDV?
SDV: Shut Down Valve, automatic process isolation.ESDV: Emergency Shut Down Valve, for critical emergencies with stricter safety requirements.
What is the difference between EN/AS 9100 and EN/AS 9120?
EN/AS 9100: standard for aerospace manufacturers and designers, covering design, production, assembly, and maintenance.EN/AS 9120: standard for distributors and stockists, focused on supply management, traceability, certification, and counterfeit prevention.
