Specifications for common materials and recommended die clearance.

STEEL

 descriptionhardnessshear Strength PSIShear Strength N/mM2material multiplierRecommended
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)

descriptionhardnessshear Strength

PSI

Shear Strength

N/mM2

material MultiplierRecommended

Die Clearance

In % Of Thickness

 1100-0 BHN 23 9,000 62 .18 15%
1100-H14BHN 32 11,000 76 .22 18%
2024-0 BHN 47 18,000 124 .36 18%
 2024-T3 BHN 120 41,000 283 .82 20%
3003-0BHN 28 11,000 76 .76 15%
3003-H14, H16 BHN 40-47 15,000 103 .30 18%
 3105-H25BHN 47 16,000 110 .32 18%
 5005-H34BHN 41 14,000 97 .28 18%
5052-0BHN 47 18,000 124 .36 18%
 5052-H32BHN 60 20,000 138 .40 20%
 6061-0 BHN 30 12,000 83 .24 15%
 6061-T6 BHN 9530,000 207 .60 20%
 7075-0 BHN 60 22,000 152 .44 20%
 7075-T6 BHN 150 48,000 331 .96 20%

COPPER BASE ALLOYS & TEMPERS

 DescriptionHardnessShear strength

PSI

Shear Strength

N/MM2

Material MultiplierRecommended

Die Clearance

In % Of Thickness

 110 Electrolitic Copper
      -.050 mm GS Rb 4022,000152.4415%
      – 1/2 HardRb 4026,000179.5220%
      – Hard Rb 5028,000193.5625%
 220 Comm Bronze 90%
      – 1/2 HardRb 55 35,000241.7015%
 230 Red Brass 85%
      – 1/4 HardRb 5535,000241.7015%
 260 Cartridge Brass
      – .035 nn GsRb 6834,000234.6815%
      – 1/2 HardRb 7040,000276.8018%
      – SpringRb 9148,000331.9620%
 342 A High Lead – 1/2 HardRb 7040,000276.8018%
 675 Manganese BronzeRb 6542,000290.8418%

STAINLESS STEEL

 DescriptionHardnessShear Strength PSIShear Strength N/mM2Material MultiplierRecommended

Die Clearance

In % Of Thickness

 202 AnnealedRb 9590,0006201.8 Thickness

(.024 – .048″)

15%
 302, 303, 304 AnnealedRb 8575,000 5171.5 Thickness

(0.5-1.5mm)

15%
 310 AnnealedRb 9090,0006201.8 Thickness

(.060 – .120″)

 20%
 316, 321, 430 AnnealedRb 9075,0005171.5 Thickness

(1.5 – 3.0mm)

20%
 410 AnnealedRb 8575,0005171.5 Thickness

(over .120″(3.0mm)

 30%

Other

DescriptionHardnessShear Strength

PSI

Shear Strength

N/mM2

Material MultiplierRecommended

Die Clearance

In % Of Thickness

 Titanium – UnalloyedRb 23-2950,0003451.2025%

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