BALFORD.Metalworking engineering answers

Materials

What are 1J50 and 1J79 soft magnetic alloys used for?

Answer

Cold-rolled steel Stainless steel Aluminum Copper and brass Monel® nickel-copper alloys Titanium Hastelloy® nickel alloys Kovar® controlled-expansion alloy Invar controlled-expansion alloy Mu-metal / permalloy Inconel® nickel alloys Tantalum and other specialty alloys Availability of specialty alloys is subject to material sourcing, minimum quantities and project qualification. What changes from one alloy to another?

Why this page is short

Published material currently supports only part of this question. The page states what is known and stops, rather than filling the gap with a plausible number. The missing detail sits on the review board waiting for an engineer.

Sources

  1. Deep Drawing Special Materials & Alloys | Balford
    Cold-rolled steel Stainless steel Aluminum Copper and brass Monel® nickel-copper alloys Titanium Hastelloy® nickel alloys Kovar® controlled-expansion alloy Invar controlled-expansion alloy Mu-metal / permalloy Inconel® nickel alloys Tantalum and other specialty alloys Availability of specialty alloy...
  2. Soft Magnetic Materials for Solenoid Valve Housings & Gaskets
    Permalloy (Fe-Ni alloys, nickel roughly 30–90%) — high permeability over a wide composition range, tunable by composition and heat treatment, good ductility, low loss. Saturation is lower than iron and nickel is expensive; the 75–83% nickel range gives the best overall combination for many applicati...
  3. Soft Magnetic Materials for Solenoid Valve Housings & Gaskets
    Magnetic housing / core parts Silicon steel (Fe-Si) Laminations; AC-oriented parts Permalloy (Fe-Ni) High-permeability / shielding parts Fe-Al / Fe-Si-Al alloys Wear-resistant magnetic parts Fe-Co alloys High-saturation demanding parts Soft ferrites High-frequency / non-formed parts Nanocrystalline ...
  4. How to Choose Soft Magnetic Metal for a Solenoid Valve
    Electrical pure iron Medium–high Low (annealed) High Good Magnetic housings, formed parts Silicon steel Medium Low–medium High Limited at high Si AC-oriented parts, laminations Permalloy (Fe-Ni) Very high Very low Medium Good (thin) High-permeability, shielding Fe-Al / Fe-Si-Al High Low Medium Appli...
  5. Metal Stamping Materials Guide | Balford OEM Parts
    Answering those questions will narrow your material options considerably. With so many alloys available, finding the exact match for your application can be tricky. That's why it pays to work with a stamping house that knows the metallurgy—they can steer you to a cost-effective, formable material th...
  6. Electrical Pure Iron for Solenoid Valve Housings | Balford
    Pure Iron and Manufacturing Processes Pure iron can be deep drawn, cold extruded and machined, and the same caution applies as for other soft magnetic metals: cold deformation introduces internal stress, and the finished component — not the raw material — defines the magnetic result. Plating and oth...

What an engineer still needs from you

  • material and material condition (grade, temper)
  • material thickness, plus the key diameter, height and wall thickness
  • tolerances, burr direction and the visual acceptance standard
  • annual volume - it decides whether tooling is single-hit, progressive or transfer
  • surface finish, and any secondary machining, annealing or plating
Next step. Send the drawing for a manufacturability review, or send the part data for a process and cost route.
Submit a drawing / RFQDFM review

Related questions

This page is an engineering answer, not a quotation and not a dimensional acceptance. It is generated from Balford's published material and held to the verified company fact sheet.