As I mentioned in the previous article, I found it difficult to find saturation curves for common soft magnetic materials by searching the Internet. To help, I decided to share the data I have accumulated over a 20 year period. Here is a link to the data:
Values are listed in text format so you can copy them and paste them into applications. The data are from a variety of sources, and I made some effort to ensure consistency. Nonetheless, Field Precision makes no claims about the accuracy of the values and accepts no responsibility for applications of the data. You are welcome to use them as is. If you have better values or find an error, please contact us a firstname.lastname@example.org.
The following materials are included
Alloy 4750 Monimax non-oriented Armco Monimax oriented Carbon steel forging annealed MuMetal Cast iron Nickel Cast steel Nickel pure annealed Cobalt Nodular cast iron Cold-drawn carbon steel annealed Permalloy 65 oriented Cold-rolled low-carbon steel Permalloy 78 Deltamax oriented Perminvar Ferrite (TDKPE22) Powdered iron sintered annealed Ferrite (TDKPE90) Pure iron Gray iron Pure iron annealed Hot-rolled low-carbon steel Sheet steel Ingot iron annealed Silicon steel Iron1018 Silicon strip 3% oriented M14 Sinimax M19 Soft iron M22 Soft ferrite (FeNiZnV) M27 Stainless steel 416 annealed M43 Steel 50H470 M36 Steel 1008 M50 Steel 1010 Magnet steel Steel 1018 Magnetite Steel 1020 Malleable iron casting Steel 1030 MetGlas 2605HB1M Steel casting MetGlas 2605SA1 Supermalloy Moly Permalloy Supermendur Monel annealed Temperature compensation alloy (30%NiFe) Tungsten steel Vanadium Permendur
For the soft materials, the value of relative magnetic permeability (μr) is defined as
μr = B/B0 = B/(μ0*H) 
where the total magnetic flux density B is in tesla and the magnetic field H is in A/m. The quantity B0 is the applied magnetic flux density and has units of tesla. Magnetic materials saturate at high values of B. The maximum contribution that a material can make to the total flux density occurs when all domains are completely aligned. The contribution is called the saturation flux density Bs. At higher fields, the total flux density is the sum of the peak material contribution and the applied flux density:
B = B0 + Bs. 
In this limit, the relative permeability is
μr = B/(B–Bs). 
At high field, Eq. 3 implies that the saturation flux density is given by
Bs = B – B/μr. 
Some of the tables contained high enough values of B that is was possible to identify a consistent value of Bs from Eq. . For these cases, I used Eq. 3 to extend the table to a standard value of B = 10.0 tesla to aid in the convergence of nonlinear numerical solutions.