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Heat treatment

after the forming process of the spring the tensile strength can be increased by heat treatment.
the heat treatment also smoothes out the tensions of the forming process.
the DIN recommendation reaches from annealing at 250°C for 24 hours to 450°C for 30 minutes; cooling down by air.
the maximum possible temperature of usage is between 120°C and 250°C
(dependent upon load).

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Hardened and tempered steel stripRolling shutter spring steel stripBand saw balde steel stripsNarrow steel stripWood/ meat cutting band saw bladeHigh tensile steel strapping

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