The housing material affects formability, corrosion resistance, magnetic performance, weight, and manufacturing cost. Material selection should start with the valve's operating environment and its electromagnetic design.

Low-Carbon Steel

Deep-drawn grades such as DC04 are widely used for magnetic solenoid housings because they combine formability with good magnetic properties. After forming, stress-relief or magnetic annealing can be used to reduce coercivity, followed by zinc or nickel-based surface protection.

Stainless Steel

304 and 316 stainless steel are suitable where corrosion resistance and cleanliness matter. Austenitic grades are commonly used for sleeves and thin-wall housings, but their magnetic characteristics must be factored into the valve design.

Aluminum Alloys

Aluminum offers low weight and good corrosion resistance. Deep-drawn grades can be anodized after forming, which makes them a strong choice for sensor and valve housings where weight reduction is valuable.

Selection Factors

Verify tensile strength, elongation, hardness, sheet thickness, magnetic permeability, corrosion resistance, coating compatibility, and cost. Complete prototype forming and functional testing before production approval.

Confirm tensile strength, elongation, hardness, sheet thickness, magnetic permeability, corrosion resistance, coating compatibility and cost. Prototype forming and functional testing should be completed before production approval.