IntegriFFS Engineering

Premium Fitness-for-Service (FFS) Verification Suite

Uploaded Logo

Supported Structural Assets

Storage Tanks

API 650 / 653 Compliant

Pressure Vessels

ASME VIII Div 1 Compliant

Refinery & Petrochemicals

Process Plant Equipment

Structural Components

Beams, Columns & Braces

Why IntegriFFS?

Operational & Compliance Overview

Page 1 — Standards Foundation

IntegriFFS implements the unified Fitness-for-Service methodology of API 579-1/ASME FFS-1 (2021 Edition), the industry standard referenced across the integrity management lifecycle:

Page 2 — Algorithmic Verification Protocol

All calculations follow a deterministic, reproducible engineering workflow:

  1. Operator inputs material properties, geometry, and damage data
  2. Engine computes Required Thickness (t_min) per ASME Section VIII Div 1 UG-27
  3. Engine computes Maximum Allowable Working Pressure (MAWP)
  4. Engine compares measured thickness against t_min — Pass or Fail verdict
  5. PDF compliance certificate generated with operator logo and full audit trail

Note: IntegriFFS implements Part 4 (General Metal Loss) of API 579. It is independently developed and not certified by API or ASME. Users must verify results against their own engineering judgment.

Licensing & Subscriptions

Choose the plan that matches your workflow. All tiers include the web-based calculator. Higher tiers unlock the full Python suite for batch assessments, custom sections, and audit-ready reporting.

Community
$0
FREE FOREVER
  • Web-based calculator (this page)
  • API 579 Part 4 General Metal Loss
  • PDF compliance certificate
  • Up to 3 assessments per day
  • Client logo upload
  • Open-source transparency
Use Free Calculator
No login required
Most Popular
Individual Pro
$500
PER YEAR
  • Everything in Community
  • Full Python desktop suite
  • Unlimited assessments
  • Parts 4, 5, 14 (all implemented)
  • Level 1 & 2 FFS assessments
  • Branded PDF reports (no watermark)
  • 1 named user seat
  • 48-hour email support
Request License
Ideal for solo integrity engineers
Enterprise
$2,500
PER YEAR
  • Everything in Individual Pro
  • Up to 10 named user seats
  • Custom section shape catalog
  • API integration (REST endpoints)
  • Bulk batch processing
  • Audit log export (CSV / JSON)
  • Air-gapped deployment option
  • Priority support (24-hour SLA)
  • Quarterly compliance training webinar
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For inspection service companies & EPC firms

All paid licenses include a 14-day money-back guarantee. Volume discounts available for 10+ seats.

Interactive Fitness-for-Service Assessment

Enter vessel parameters below. The engine computes required thickness, MAWP, and pass/fail verdict per ASME VIII Div 1.

Assessment Results

Required Thickness (t_min)
— in
MAWP
— PSI
Measured Thickness (t)
— in
Margin of Safety
— in
IntegriFFS Engineering — Fitness-for-Service Compliance Certificate