- CAESAR II · ASME B31.3 / B31.1
Piping stress analysis for refineries, WHRU and power plants
Softstra delivers specialist CAESAR II piping stress analysis, failure and integrity assessment, and engineered piping supply across Malaysia and Southeast Asia.
REGION
- Services
Engineering services for critical piping systems.
CAESAR II Piping Stress Analysis
End-to-end stress analysis for refinery and WHRU critical lines, backed by manual calculations and front-end data validation.
Key highlights:
- CRITICAL LINE STRESS ANALYSIS
- MANUAL CALCULATION FOR NON-CRITICAL PIPING
- FRONT-END DESIGN DATA VALIDATION
Failure & Integrity Assessment
On-site review of operating plants to identify code violations and integrity risks — with clear, actionable remediation guidance.
Key highlights:
- FLANGE LEAKAGE & OVERSTRESS REVIEW
- NOZZLE LOAD & SUPPORT ASSESSMENT
- CODE-CITED FINDINGS WITH REMEDIATION
Dynamic & Seismic Analysis
Comprehensive dynamic loading analysis — seismic, vibration, and transient events — fully integrated within a single CAESAR II model.
Key highlights:
- SEISMIC & VIBRATION ANALYSIS
- STEAM HAMMER & RELIEF VALVE REACTION
- COMPRESSOR PULSATION ASSESSMENT
Thermal Expansion Analysis
Flexibility and expansion design for hot and cryogenic piping systems, engineered to ASME B31.3 / B31.1 allowable stress limits.
Key highlights:
- EXPANSION LOOPS & OFFSET DESIGN
- HOT & CRYOGENIC PIPING FLEXIBILITY
- ASME B31.3 / B31.1 COMPLIANCE
- Industries
Specialist scope across three industries.
Owner-operators, EPC contractors, and engineering consultancies across Malaysia and Southeast Asia.
Oil & Gas Refineries
Crude, hot oil, hydrogen, and sour-service lines — ASME B31.3 with API 610 / 617 equipment interfaces.
Petrochemical Plants
Ethylene, propylene, aromatics, reactor systems — cyclic and cryogenic service.
Power, WHRU & Fired Heaters
Main steam, HRSG, WHRU tube-to-header, and fired heater transfer lines including manifold-tubesheet expansion.
- Why Softstra
Built on standards, methodology, and hardware experience.
Standards & Compliance
Every report built to ASME B31.3 (Process) and B31.1 (Power), with flange evaluations to Section VIII Div 1 and PCC-1, and rotating equipment per API 610 / 617.
Transparent Methodology
A documented seven-step process — from design data validation to final isometric markup — so clients see exactly how decisions are made on every engagement.
Backed by South Moonsgate
Softstra is the specialist piping arm of South Moonsgate Sdn Bhd — an established oil & gas equipment company. Analysis informed by real-world hardware.
- Specialist capabilities
What our clients rely on us for.
Differentiated capabilities developed across refining, power, and offshore engagements.
Manifold-tubesheet expansion analysis
Manual calculation of manifold-tubesheet expansion and nozzle movement, integrated into the CAESAR II model. A specialty most generic consultancies do not offer in-house.
Critical vs non-critical line screening
Objective screening — pipe size > 2", high T/P, rotating equipment connections — routes lines to full CAESAR II or manual cantilever-beam, optimising cost.
Spring hanger drawing review
Vendor submittals for spring hangers, expansion joints, and non-standard supports — checked against the CAESAR II load and travel envelope before hardware leaves the supplier.
Civil & structural load handoff
Support loads formatted for direct handoff to civil and structural teams designing pipe racks and T-supports. No translation step required.
- Products & Supply
We also supply the hardware we specify.
Engineered piping goods procured to ASME and API specifications — one partner for analysis and supply, reducing the loop between specification and delivery.
- Our approach
How we work — at a glance.
STEP 001.
Validate design data
We review P&ID, isometrics, line list, and material specification before any modelling begins. Gaps closed upfront prevent rework downstream.
STEP 002.
Analyse
Critical lines modelled in CAESAR II; non-critical lines calculated manually. Every model peer-reviewed before load cases are applied.
STEP 003.
Deliver
Stress reports, support load tables, marked-up isometrics, and an executive summary that civil and structural teams can act on directly.
- Get in touch
