How to choose stainless steel grades for non-standard fittings
A practical guide for balancing corrosion resistance, machining stability, pressure use, surface finish, and cost.
Material choice decides much more than price. For non-standard fittings, it affects machining stability, thread quality, sealing face durability, surface treatment, and long-term corrosion resistance.
304 stainless steel is a common starting point for many industrial fittings. 316 stainless steel is often reviewed when corrosion resistance, outdoor use, or chemical exposure matters.
For brass, aluminum, and carbon steel parts, confirm the operating medium, strength requirement, finish, and whether plating or passivation is needed before quoting.
Need drawing-specific hardware advice?
Share the drawing, material, thread, finish and quantity. KEC Tour can review the manufacturing route before quoting.
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