Specifications for common materials and recommended die clearance.

STEEL

 description hardness shear Strength PSI Shear Strength N/mM2 material multiplier Recommended
Die Clearance
In % Of Thickness
 Low Carbon HR Steel  Rb 70  50,000  345  1.00  20%
 Low Carbon C.R. Sheet  Rb  40,000  276  .80  25%
 ASTM A-36  BHN 119-159  58-80,000  1.20  20-25%
 45-50 Carbon HR Sheet  BHN 200  80,000  552  1.60  25%
 Spring Steel 1074, 1095  Hardened to  Spring Temper  Rc 45-50  200,000  1,380  4.0  30%
 COR-TEN Steel  BHN 120  55,000  379  1.1  20%

ALUMINUM BASE ALLOY(S) AND TEMPERS(S)

description hardness shear Strength

PSI

Shear Strength

N/mM2

material Multiplier Recommended

Die Clearance

In % Of Thickness

 1100-0  BHN 23  9,000  62  .18  15%
1100-H14 BHN 32  11,000  76  .22  18%
2024-0  BHN 47  18,000  124  .36  18%
 2024-T3  BHN 120  41,000  283  .82  20%
3003-0 BHN 28  11,000  76  .76  15%
3003-H14, H16  BHN 40-47  15,000  103  .30  18%
 3105-H25 BHN 47  16,000  110  .32  18%
 5005-H34 BHN 41  14,000  97  .28  18%
5052-0 BHN 47  18,000  124  .36  18%
 5052-H32 BHN 60  20,000  138  .40  20%
 6061-0  BHN 30  12,000  83  .24  15%
 6061-T6  BHN 95 30,000  207  .60  20%
 7075-0  BHN 60  22,000  152  .44  20%
 7075-T6  BHN 150  48,000  331  .96  20%

COPPER BASE ALLOYS & TEMPERS

 Description Hardness Shear strength

PSI

Shear Strength

N/MM2

Material Multiplier Recommended

Die Clearance

In % Of Thickness

 110 Electrolitic Copper
      -.050 mm GS  Rb 40 22,000 152 .44 15%
      – 1/2 Hard Rb 40 26,000 179 .52 20%
      – Hard  Rb 50 28,000 193 .56 25%
 220 Comm Bronze 90%
      – 1/2 Hard Rb 55  35,000 241 .70 15%
 230 Red Brass 85%
      – 1/4 Hard Rb 55 35,000 241 .70 15%
 260 Cartridge Brass
      – .035 nn Gs Rb 68 34,000 234 .68 15%
      – 1/2 Hard Rb 70 40,000 276 .80 18%
      – Spring Rb 91 48,000 331 .96 20%
 342 A High Lead – 1/2 Hard Rb 70 40,000 276 .80 18%
 675 Manganese Bronze Rb 65 42,000 290 .84 18%

STAINLESS STEEL

 Description Hardness Shear Strength PSI Shear Strength N/mM2 Material Multiplier Recommended

Die Clearance

In % Of Thickness

 202 Annealed Rb 95 90,000 620 1.8 Thickness

(.024 – .048″)

15%
 302, 303, 304 Annealed Rb 85 75,000  517 1.5 Thickness

(0.5-1.5mm)

15%
 310 Annealed Rb 90 90,000 620 1.8 Thickness

(.060 – .120″)

 20%
 316, 321, 430 Annealed Rb 90 75,000 517 1.5 Thickness

(1.5 – 3.0mm)

20%
 410 Annealed Rb 85 75,000 517 1.5 Thickness

(over .120″(3.0mm)

 30%

Other

Description Hardness Shear Strength

PSI

Shear Strength

N/mM2

Material Multiplier Recommended

Die Clearance

In % Of Thickness

 Titanium – Unalloyed Rb 23-29 50,000 345 1.20 25%

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