Pipe Thickness Calculator for Low Alloy Steels as per AMSE B31.3

Pipe Thickness Calculator (ASME B31.3)

Pipe Thickness Calculator (ASME B31.3)

1. Select Calculation Mode

2. Input Parameters

3. Calculation Results

Line Condition

Class Condition

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Pipe Thickness for Low Alloy Steels is an important aspect in the design of piping systems that operate under high-pressure or elevated temperature conditions. Low alloy steels, such as chrome-moly grades (e.g., ASTM A335 P11, P22), are commonly used in power plants, refineries, and petrochemical services. The correct wall thickness must be selected to ensure safety, comply with ASME B31.3 or B31.1 codes, and handle long-term creep and stress. This article covers standard schedules, corrosion allowance, and selection tips specific to low alloy materials.