EN 47 Spring Steel

Product Description

Forging: Forge at 1050C. Do not work this steel when it has fallen below 840C.
Annealing: Heat slowly to 820-840C, soak well. Cool slowly in the furnace.( Our annealing is done in electric furnace to avoid decarburization. )
Hardening: Pre heat slowly to 650/700C and thoroughly soak. Continue heating to the final hardening temperature of 830/860C and allow the component to be heated through. Quench in oil.
Tempering: Temper the EN47 spring steel component immediately after quenching whilst tools are still hand warm. Re-heat to the tempering temperature then soak for one hour per 25 millimetre of total thickness (2 hours minimum) Cool in air. For most applications tempering of this grade will be between 400-600C.
Heat Treatment: Heat treatment temperatures, including rate of heating, cooling and soaking times etc. will vary due to factors such as the shape and size of each component. Other considerations during the heat treatment process include the type of furnace, quenching medium and workpiece transfer facilities. Please consult your heat treatment provider for full guidance on heat treatment of EN47.

Size Range:

• Wire Rod Round As Rolled (If required we can also supply in spheroidized annealed condition.) 8 MM to 32 MM DIA
• Flat Bars - As Rolled and Spheroidized Annealed
• Sizes Available: 20 x 20 mm, 22 x 22 mm, 25 x 25 mm, 25 x 60 mm, 28 x 28 mm, 28 x 36 mm, 32 x 32 mm, 36 x 36 mm, 36 x 45 mm, 55 x 55 mm, 40 x 40 mm, 45 x 45 mm, 45 x 55 mm
• Price Range: Rs.68-90 per Kg