Selection of non-magnetic steel materials: High manganese steel and SUS304/SUS316.
NM-13MN SUS304 SUS316
Don't decide solely based on non-magnetic properties. We propose materials considering wear resistance, corrosion resistance, and magnetic properties after processing.
In equipment such as MRI machines, magnetic separators, and semiconductor manufacturing devices that are affected by strong magnetic fields, non-magnetic steel that is difficult to magnetize is required. However, high manganese steel and austenitic stainless steel have different preferred usage environments. It is important to consider not only whether the material will attract magnets but also factors such as strength, wear resistance, corrosion resistance, and processing methods in the selection process. If stability, strength, toughness, and wear resistance of non-magnetic materials are prioritized, high manganese steel NM-13MN is a candidate. On the other hand, if corrosion resistance, hygiene, and general processability are prioritized, austenitic stainless steels such as SUS304 and SUS316 are candidates. At Kumagai Special Steel, we confirm the usage environment and required specifications, providing consistent support from material procurement to cutting and machining.
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- I don't know whether to choose high manganese steel, SUS304, or SUS316. - I want to maintain non-magnetic properties after processing, but I don't know the criteria for judgment. - I want to consider magnetic fields, corrosion, impact, and wear all together. Candidates for handling: high manganese steel NM-13MN, SUS304, SUS316, and others. You can consult us about material, plate thickness, and processing methods from the early stages of drawing and specification review. 【Understanding is quicker when grasping the differences in material philosophy】 Both are classified as "non-magnetic steel," but their design philosophies are completely different. - High manganese steel: Non-magnetic steel designed to maximize strength, toughness, and wear resistance. - SUS304, SUS316: Non-magnetic steel designed to maximize corrosion resistance, workability, and versatility. 【Stability of non-magnetic properties】 - High manganese steel: ◎ Maintains non-magnetic properties after processing. - SUS304, SUS316: △ May exhibit magnetism due to cold working. 【What to prioritize】 Choosing non-magnetic steel solely based on whether it is "magnetically attracted" can lead to failure. What is important is what other material properties are prioritized besides non-magnetism. - Strength, toughness, wear resistance → High manganese steel - Corrosion resistance, workability, hygiene → Austenitic stainless steel
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※NM-13MN is a quite niche steel material. At Kumagai, we have an immediate delivery system in place for standard sheets, including cutting processing, so it takes about a week depending on the lot. Additionally, for special specifications or large lots, it may take longer. Please contact us via email or phone!
Applications/Examples of results
Non-magnetic components such as MRI peripheral equipment, magnetic separators, semiconductor manufacturing equipment, electronic equipment, food equipment, chemical plants, and marine equipment.
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Since our establishment in 1913, we have been a specialized trading company of special steel for nearly a century, listening to the needs of many customers and building an ideal relationship between customers and steel manufacturers as a conductor of steel distribution. As a trading company with various processing equipment, including cutting machines and laser cutting machines, we also contribute to reducing our customers' capital investment. Please feel free to contact us if you have any requests.
