Why 65Mn Oil-Quenched Steel Is The Best Material For Seat Scroll Springs

When purchasing scroll springs and coil springs for car, high-speed rail and office chair recliners, most buyers struggle with premature spring failure, poor elasticity and short service life. The core root of these issues lies in raw material selection. At Langfang Jinrui Auto Parts Co., Ltd, we only adopt exclusive oil-quenched 65Mn spring steel for all our seat springs, and firmly refuse low-cost cold-rolled steel.

What makes oil-quenched 65Mn stand out from ordinary cold-rolled steel?

First, oil quenching heat treatment greatly improves the material’s tensile strength, toughness and anti-fatigue performance. Seat scroll springs need to twist thousands of times daily during angle adjustment; cold-rolled steel will deform and lose elasticity after frequent use, while 65Mn oil-quenched steel maintains stable torque over millions of cycles.

Second, it delivers superior wear resistance. For commercial seating such as train seats and gaming office chairs, springs bear continuous long-term load. Our 65Mn material avoids metal fatigue cracks, reducing your product after-sales maintenance rate significantly.

As a professional manufacturer, we make a public promise: fake raw materials come with full compensation. Every batch of steel raw materials will be inspected before production, and finished springs pass full fatigue testing before delivery.

If you are tired of unstable springs causing customer complaints, switching to 65Mn oil-quenched scroll springs is the most cost-effective solution for your seating products. Contact our team to get customized spring samples with full material test reports.