Suite home
Engineering calculation suite
BPVC Section VIII Division 2 & 3 Calculator
Design-by-analysis (Div 2) • Thick-wall high-pressure (Div 3) • ASME/ASTM reference framework
Project information
Design conditions
Material & joint
Head configuration
Calculation report
V-201
High-pressure reactor • ASME BPVC VIII Division 2
Required shell thickness
1.539 in
Required head thickness
1.485 in
Net shell thickness
1.414 in
Test pressure basis
2145.0 psi
Governing case: Shell governs. Design method: Membrane (Div 2 Article 4.1). Corrosion allowance of 0.125 in included.
Detailed results
Net shell thickness: 1.414 in
Net head thickness: 1.360 in
Minimum thickness applied: 0.063 in
Design method: Membrane (Div 2 Article 4.1)
Standards basis
ASME BPVC VIII-2 Article 4.1Design-by-analysis membrane thickness
ASME BPVC VIII-2 Part 5Fatigue and elastic-plastic analysis
ASME BPVC VIII-3 Article KD-2Thick-wall (Lamé) high-pressure design
ASME BPVC VIII-3 Article KD-4Fracture mechanics and autofrettage
ASME BPVC II-DAllowable stress values (user verified)
ASME BPVC VIII-2/UW-12Welded-joint efficiency
ASME BPVC VIII-2 UG-99 alt.Hydrostatic test basis (1.43× design)
ASME BPVC VIII-3 KD-10Fracture-toughness verification
API 579-1 / ASME FFS-1Fitness-for-service reference
ASTM A516 / ASME SA-516Carbon-steel pressure-vessel plate
ASTM A240 / ASME SA-240Stainless-steel plate reference
AI Engineering Advisor
Advisory layer over the verified ASME calculations — confirm against the governing code edition.
The AI advisor interprets the verified results, suggests optimizations, and flags additional code analyses — while the deterministic ASME formulas remain the source of truth.