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GI strip coil 65mn galvanized strip coil
65Mn black Spring Steel Strips Harden And Temper Flexible Thin Flat
Waterproof paper insider, then plastic film, finally hessian cloth or carton,
wood pallet or iron pallet. We can also packing as customer's requirements
ardening and Tempering is a thermal process that strengthens steel strips through
a controlled heating and cooling process. The hardening process involves heating
the steel strip to above the critical transformation temperature for the given grade
and then rapidly cooling. The steel strip in this condition is extremely brittle and
requires further treatment in the tempering. Then strips are reheated to a lower
temperature and holding it at the given temperature for a given period of time.
This process is done in an inert atmosphere to avoid oxidation. This type of steel strip
has high degree of toughness and has excellent spring properties.
