Introduction of original materials such as austenitic stainless steel and martensitic stainless steel!
We would like to introduce the original materials of Sanwa Needle Bearings. "Austenitic stainless steel 15MH" is a non-magnetic, high-hardness material. Its surface hardness is Hv500, with non-magnetism having a permeability of 1.01μ or less, and corrosion resistance equivalent to SUS304. Additionally, "Martensitic stainless steel KWS4MA" has a surface hardness of Hv700 or higher, providing superior sliding properties compared to SUS440C, and serves as a low-cost alternative to SUS440C. Furthermore, using our original material 15MH, we also manufacture high-precision products that maintain non-magnetism while achieving a hardness of Hv650 or higher through "15MH + SVC treatment." 【Features of Austenitic Stainless Steel 15MH】 ■ Non-magnetic high-hardness material ■ High hardness: Surface hardness Hv500 ■ Non-magnetic: Permeability of 1.01μ or less ■ Corrosion resistance: Equivalent to SUS304 *For more details, please refer to the PDF document or feel free to contact us.
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【Other Features】 <Martensitic Stainless Steel KWS4MA> ■Alternative material to SUS440C ■Wear resistance: Surface hardness over Hv700 ■Friction properties: Superior to SUS440C ■Price: Lower than SUS440C <15MH + SVC Treatment> ■By applying SVC treatment to 15MH, a high-hardness non-magnetic stainless steel with excellent hot workability and corrosion resistance, non-magnetic properties and surface hardness over Hv700 are achieved. ■This feature allows for use in automotive parts such as solenoids. *For more details, please refer to the PDF document or feel free to contact us.
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For more details, please refer to the PDF document or feel free to contact us.
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Sanwa Needle Bearing Co., Ltd. has been committed to expanding technology, production, and management both domestically and internationally, with the awareness of being the world's top shareholder in precision micro shafts. We have established an integrated in-house system for grinding, plastic deformation, cutting, and heat treatment, and our products, developed in collaboration with customers in fields such as automotive, machinery, semiconductors, and communications, have become mainstream. We will continue to deepen our creative technologies to always meet our customers' needs.