eecTurnaround Suite

The eecTurnaround Suite focuses on products that determine thickness or maximum pressure (MAWP) in accordance with ASME Boiler & Pressure Vessel Code, Section VIII, Divisions 1 and 2, and Section 1; ASME B16.5 and B16.47; ASME B31.1, B31.3, B31.4, B31.8, and Section 1; and data provided by the Gas Processors Suppliers Association (GPSA) data book. This suite of products includes:

• API 579/ ASME FFS
• Damage Web
• ASME B16.5 PIPE Flanges
• Boiler Tubes
• Branch
• Hydrogen Bake-Out
• Material Explorer
• Pipe Pressure Thickness
• Pipe Span Pressure-Thickness
• Reactor Shutdown
• Shell Pressure Thickness

Pricing

These tools are offered on a variety of levels. To purchase a subscription, please contact webtools@E2G.com for more information.

API 579/ASME FFS

A Complete Set of WebTools for Conducting a Fitness-for-Service Assessment. Each Part (3 through 14) of API-579 is included as a separate WebTool. The WebTools incorporate the most recent updates to API-579 and offer numerous features including an intuitive user interface, a clear organization of results, modern graphics, nicely formatted printable pdf reports, the ability to save and load assessments, easy access to help, and much more.

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Damage Web

With a technical basis in API RP 571 and WRC 489, Damage for the web is an invaluable reference guide for identifying and understanding the potential damage mechanisms that can cause costly fixed equipment failure. Similar to the desktop version, the heart of Damage for the web is the Solver. By selecting filter criteria (process unit, material, operating temperature, source and morphology), the Solver will quickly identify the possible damage mechanisms from the complete list defined in API 571, highlighting the most likely mechanisms for the selected criteria. The list of damage mechanisms is hyperlinked to the section of the 571 document pertaining to that mechanism. The document is presented in accordion format for mobile-friendly viewing and includes image links for appearance or morphology of damage.

A comprehensive Material look up reference tool for specifications, chemistry, hardness, fired heater limits, weld and pump materials is available. Process Flow Diagrams may be accessed from a pull down menu or from the Solver. Damage mechanisms shown on the PFDs are hyperlinked to the relevant 571 section. In addition to the calculators for sulfidation, H₂S corrosion, and oxidation found in the desktop version, there are additional API 581-compatible susceptibility calculators for amine, sulfide stress, and caustic cracking.

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ASME B16.5 PIPE Flanges

The pressure-temperature rating for a standard flange manufactured in accordance with ASME B16.5 or B16.47 is determined. The pressure-temperature rating is performed according to a specific edition of ASME B16.5 and B16.47. A materials database for these codes is provided. Three options are provided:

• Option 1 – Given a pressure, temperature and material of construction, the required ASME flange class is determined.
• Option 2 – Given a flange class, pressure and material of construction, the maximum temperature is determined./li>
• Option 3 – Given the flange class, temperature and material of construction, a maximum pressure is determined.

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Branch

Branch reinforcement calculations for integrally and pad reinforced fabricated connections (i.e. run pipes and headers) are performed in in accordance with ASME B31.1, B31.3, B31.4 and B31.8 Piping Codes for power, process, liquid transportation, and gas distribution piping, respectively. A materials database for these codes is provided. Two options are provided:

• Design Option – Determine the branch design reinforcement requirements given the geometry, materials of construction, design pressure, design temperature of the run pipe (header) and the branch pipe.
• In-Service Option – Determine the branch MAWP (MAOP) given the geometry, materials of construction, design temperature, metal loss and corrosion allowance of the run pipe (header) and the branch pipe.

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Hydrogen Bake-Out

Determine the time required for a hydrogen bake-out operation at a user specified temperature to ensure that the remaining hydrogen concentration in the vessel wall is no greater than a user specified maximum value. Cylindrical and spherical vessels may be analyzed. The materials of construction may be specified as carbon steel or a low chrome alloy steel. The shell may include a Type 300 series stainless steel internal cladding or weld overlay, or a Type 410 cladding. A transient diffusion analysis is performed and the hydrogen concentration in the vessel wall is determined as a function of the shut-down time cycle.

When welding onto hydrogen-charged steel, hydrogen in the vessel wall increases the risk of cracking due to hydrogen embrittlement as the weld metal cools and higher levels of residual stress are induced in the weld region. To reduce this risk, atomic hydrogen present in the steel should be baked-out prior to welding. This is accomplished by heating the steel to a temperature for a sufficient period of time to allow the absorbed hydrogen to diffuse back out of the steel. Heating is required, because both the diffusivity and solubility of hydrogen in steel is a rapidly increasing function of temperature.

Material Explorer

Access to E²G’s extensive material database for materials typically used in the construction of pressure vessels, piping and tankage is provided. The database includes:

• Material physical properties – Young’s Modulus’s, thermal expansion coefficient, thermal conductivity and thermal diffusivity as a function of temperature.
• Strength parameters – yield and tensile strength as a function of temperature.
• Allowable design stresses as a function of temperature, allowable stress may be determined based upon a specific year of the code shown below.
  • ASME Boiler and Pressure Vessel Code Sections I, Section VIII, Divisions 1 and 2
  • ASME B31 Piping Codes B31.1, B31.3, B31.4 and B31.8
  • API 620, API 650, API 653

The above properties are determined for a specified input temperature. Supplemental output including tables and graphs of material properties as a function of temperature is also provided.

Reactor Shutdown

Determine the hydrogen concentration in cylindrical or spherical vessel wall given the steady state operating conditions, i.e. pressure and temperature, and a specified shut-down rate, both pressure and temperature may be specified. The materials of construction may be specified as carbon steel or a low chrome alloy steel. The shell may include a Type 300 series stainless steel an internal cladding or weld overlay, or a Type 410 cladding. A transient diffusion analysis is performed and the hydrogen concertation in the vessel wall is determined as a function of the shut-down time cycle.

Boiler Tubes

Boiler Tube thickness and MAWP calculations in accordance with ASME B&PV Code, Section I code calculations for boiler tubes. A materials database for these code is provided. Two options are provided:

• Design Option – Determine the required thickness and recommended nominal thickness given the geometry, materials of construction, design pressure and design temperature.
• In-Service Option – Determine the retirement thickness and MAWP given the geometry, materials of construction, nominal thickness, design pressure, design temperature, metal loss and corrosion allowance.

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Pipe Pressure-Thickness Tool

Piping thickness, MAWP (MAOP) and MDMT calculations are determined for straight pipe, elbows and miter bends in accordance with ASME B31.1, B31.3, B31.4 and B31.8 Piping Codes for power, process, liquid transportation, and gas distribution piping, respectively. A materials database for these code is provided. Supplemental loads, i.e. forces and moments, may be specified. Two options are provided:

• Design Option – Determine the required thickness, recommended nominal thickness and MDMT given the geometry, materials of construction, design pressure, design temperature and supplemental loads
• In-Service Option – Determine the retirement thickness, MAWP (MAOP) and MDMT given the geometry, materials of construction, nominal thickness, design temperature, supplemental loads, metal loss and corrosion allowance

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Pipe Span Pressure-Thickness

Calculations to determine the required thickness or MAWP (MAOP) of a pipe span are performed such that a user-specified maximum deflection and slope are not exceeded. Calculations are performed in accordance with the ASME B31.1, B31.3, B31.4 and B31.8 Piping Codes. A materials database for these codes is provided. Concentrated loads can be included and adjusted to model flange junctions, valves and the weight of a person. Distributed loads automatically included in the calculations are the weight of the pipe, insulation, and fluid contents. Longitudinal, circumferential and stress at the supports are computed in addition to pipe properties including metal cross-sectional area, section modulus, moment of inertia and weight. In the weight calculation, the additional weight due to insulation, refractory, and the fluid is accounted for. If refractory properties are input, a modified moment of inertia is computed to model the increase in stiffness due to the specified refractory thickness and its modulus of elasticity. Two options are provided:

• Design Option – Determine the required thickness and recommended nominal thickness given the geometry, materials of construction, design pressure, design temperature and applied loadings
• In-Service Option – Determine the retirement thickness given the geometry, materials of construction, design pressure, design temperature and applied loadings

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Shell Pressure-Thickness

Pressure vessel thickness, MAWP and MDMT calculations are determined for cylindrical shell, conical shell, sphere, elliptical head, torispherical head and elbow in accordance with the ASME B&PV Code, Section VIII, Divisions 1 and 2. A materials database for these code is provided. Two options are provided:

• Design Option – Determine the required thickness, recommended nominal thickness and MDMT given the shell geometry, materials of construction, design pressure and design temperature.
• In-Service Option – Determine the retirement thickness, MAWP and MDMT given the shell geometry, materials of construction, nominal thickness, design pressure, design temperature, metal loss and corrosion allowance.

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