The Restriction of Hazardous Substances (RoHS) directive has become a critical consideration for B2B exporters of industrial components, particularly in automotive and electronics applications. For Southeast Asian manufacturers looking to sell on Alibaba.com and access global markets, understanding RoHS requirements is no longer optional—it's a fundamental business requirement.
RoHS restricts ten specific substances in electrical and electronic equipment: lead (Pb), mercury (Hg), cadmium (Cd), hexavalent chromium (Cr6+), polybrominated biphenyls (PBB), polybrominated diphenyl ethers (PBDE), and four phthalates (DEHP, BBP, DBP, DIBP). The maximum concentration value for most substances is 0.1% (1000 mg/kg) by weight in homogeneous materials, with cadmium limited to 0.01% (100 mg/kg).
This is particularly important for exporters of automotive brake components, bus parts, and industrial hardware. While brake pads themselves typically use friction materials rather than stainless steel, components like brake caliper hangers, brackets, and mounting hardware are commonly manufactured from stainless steel grades 304 or 316L.
Commercially produced stainless steels can be expected to comply with the RoHS Directive without the need for actual measurement or declaration of compliance. Stainless steels do not contain any of the restricted substances at levels exceeding the maximum concentration values [1].
However, compliance complexity arises not from the base material itself, but from secondary processes such as passivation, coating, plating, or the addition of non-metallic components (rubber tips, plastic inserts, adhesives). These are the areas where RoHS violations most commonly occur in stainless steel products.

