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S7 Punch Stock Set

In stock

set of 6 diameters (3/8 - 1-1/4") of S7 punch stock for making your own punches. **1/4" not included**
Item #
S7 stockset

As low as $65.00

set of 6 diameters (3/8 - 1-1/4") of S7 punch stock for making your own punches. **1/4" not included**
set of 6 diameters (3/8 - 1-1/4") of S7 punch stock for making your own punches. **1/4" not included**
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S7 Punch Stock Set
S7 Punch Stock Set

In stock

$65.00

Summary
    set of 6 diameters (3/8 - 1-1/4") of S7 punch stock for making your own punches. **1/4" not included**

    6 different diameters of S7 round stock  for making punches

    Forged or grind your own punches.

    Diameters include: 3/8, 1/2, 5/8, 3/4, 1, 1-1/4" diameters

    12" Lengths

    FORGING

    Preheat 1200°-1300°F. Forge at 2000°-2050°F. Stop at 1700°F and cool slowly.

    ANNEALING

    1500°-1550°F, cool slowly to 1000°F, air cool. Brinell 197 max.

    PREHEATING

    1200°-1300°F, prior to hardening.

    HARDENING

    1750°F. Quench in air if cross section is 2-1/2" or smaller; sections 2-1/2" to 6" should be oil quenched to black (1000°F) followed by air cooling to 150°F. Larger cross sections should be oil quenched to 150°F.

    TEMPERING

    Double temper one hour per inch of section thickness to desired heating rate of 2 hours per inch. Cool in air to room temperature between the two tempers. Suggested: Cold working applications 400°-500°F. Hot working applications 900°-1000°F.

    Air Cool Oil Quench Tempering Hardness Hardness Temperature F Rockwell C Rockwell C     As Quenched 60 61 200 59.5 60.5 300 58.5 60 400 57 58.5 500 55.5 55.5 600 54 54 700 53.5 53.5 800 52.5 52.5  900 51.5 52 1000 50.5 51.5 1100 48 48.5 1200 37.5 37.5 1300 25.5 26.5

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