Materials
Is stainless steel magnetic?
Answer
Is 304 stainless steel magnetic? Annealed 304 is effectively non-magnetic. Cold working - drawing, bending, thread rolling - can form strain-induced martensite, so a heavily formed part may attract a magnet weakly. Which stainless steel is magnetic?
Sources
- Is Stainless Steel Magnetic? Depends On The GradeIs 304 stainless steel magnetic? Annealed 304 is effectively non-magnetic. Cold working - drawing, bending, thread rolling - can form strain-induced martensite, so a heavily formed part may attract a magnet weakly. Which stainless steel is magnetic? The ferritic and martensitic families: 430, 430F, ...
- Is Stainless Steel Magnetic? Depends On The GradeIs Stainless Steel Magnetic? It Depends On The Grade 304 is barely magnetic, 430 sticks to a magnet, and cold working makes 304 more magnetic. Which grades attract a magnet, and why it matters for a part. The question usually arrives as a complaint: a magnet sticks to a part that was supposed to be ...
- Does Stainless Steel Rust? Causes, Grades, FixesQ: Is 430 stainless steel magnetic, and does that matter? A: Yes, 430 and 430F are ferritic and magnetic. It matters when the part sits next to a magnetic sensor or must be non-magnetic for the assembly - in that case 304 or 316 is the right grade, and we cut sensor hex nuts in both 430F and 304 for...
- Is Copper Magnetic? No - And Why It MattersIs 304 stainless steel magnetic? Annealed 304 is essentially non-magnetic. Cold working - drawing, bending, thread rolling - can form a little strain-induced martensite, so a heavily drawn 304 housing may show a weak attraction while flat sheet does not. Which stainless grade is magnetic? The ferrit...
- Does Stainless Steel Rust? Causes, Grades, FixesWhy did my stainless steel part rust after welding? Welding leaves a chromium-depleted heat-tint zone around the weld. Removing the tint by pickling and passivating restores the passive layer; leaving the coloured oxide in place leaves a surface that will stain in moisture. Is 430 stainless steel ma...
- Is Brass Magnetic? No - And Where It MattersMaterial Magnetic behaviour Magnet sticks? Brass (all common grades) Diamagnetic No Bronze (CuSn, CuAl) Diamagnetic No Copper C11000 Diamagnetic No Aluminium 6061 Paramagnetic, effectively non-magnetic No 304 stainless, annealed Paramagnetic, weakly Very weak or none 304 stainless, heavily cold work...
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
Submit a drawing / RFQDFM review
Related questions
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- Which stainless steel grade should I choose: 301, 304, 316L or 430?
- What is DT4E pure iron and why is it used for solenoid housings?
- What are 1J50 and 1J79 soft magnetic alloys used for?
- Which aluminium grades deep draw well?
- Copper, brass or aluminium: which should a housing be made from?
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.