Introduction
Oil & Gas, offshore and pressure equipment projects often require compliance with specialized industry standards beyond general ASTM specifications.
Uni Circle Fasteners Sdn Bhd (UCF) supports supply of fasteners aligned with:
NORSOK M-650
NACE MR0175 / ISO 15156
API Requirements
PED (Pressure Equipment Directive)
AD 2000
Sour Service Applications
Offshore Platform & FPSO Specifications
NORSOK Fasteners
NORSOK standards are commonly specified for:
Offshore platforms
Subsea equipment
Norwegian Continental Shelf projects
High-corrosion marine environments
These projects require enhanced material integrity, corrosion resistance, and full traceability to meet offshore operational demands.
NACE & Sour Service Applications
In hydrogen sulfide (H₂S) environments, fasteners must comply with NACE requirements to prevent:
Sulfide stress cracking
Hydrogen embrittlement
Premature material failure
We support sourcing of compliant materials suitable for:
Refineries
Gas processing plants
Offshore sour service environments
Petrochemical facilities
Material selection and certification are critical in ensuring long-term performance in corrosive conditions.
API Bolting Applications
For upstream and downstream Oil & Gas operations, API-aligned bolting may be required for:
Wellhead equipment
Pressure-containing components
Pipeline flanges
Valve assemblies
API compliance is commonly specified in project documentation for energy sector applications.
PED & AD 2000 Pressure Equipment Applications
For European-regulated or pressure vessel projects, compliance with PED and AD 2000 may be required.
These standards are commonly specified for:
Heat exchangers
Pressure vessels
Boilers
Industrial piping systems
Documentation, traceability, and conformity assessment are essential in meeting regulatory and inspection requirements.
Supporting Critical Applications
These compliance frameworks are particularly relevant for:
Heat exchanger stud bolts
Pressure vessel bolting
High-temperature turbine fasteners
Super Duplex offshore bolting
Alloy 660 (A286) high-temperature applications
