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Algebra:
Quadratic Solver
Root Solver

NEC:
Welder AMP

Metallurgy
Ferrite Equiv

Piping:
ASME B31G
Schedule

API 579:
API 579 - GML
API 579 - LTA

Stress Analysis:
Mohrs Circle
Online CAE
Section Modulus

Regression:
Charpy
OnlineCharpy
Polynomial
Stock Simulator

Tankage:
API 650/653
Drainage Time

Units:
Convert

Valves:
ASME B16.34
Cv Flow Calcs
Valve Selector

Weldability:
Carbon Equiv

Charpy Test Regression v2
C
H
A
R
P
Y

E
n
e
r
g
y

[ft-lb]
[N-m]
Temperature [°F or °C]
The Charpy impact test is a test to determine the amount of energy for fracture.
Place Charpy results into the textbox below and press go. The parameters will be calculated.
The following app is any easy to use way to perform this calculation.
Non Linear Least Squares was used to determine this fit. The Numerical Technique is shown here.
Try Online Charpy, a proprietary method for performing impact test regression analysis which requires less data points
Data
Parameters:


A=###, A=
B=###, B=
C=###, C=
T0=###, T0=