|
|
|
Rockwell
Hardness
A Scale
C Scale |
| Density |
 |
G/CM |
3 |
|
Minimum
Transverse
Rupture PSI |
Compressive
Strength
PSI
|
|
3% C-4 |
High hardness and abrasion resistant, No shock |
Small nozzles, Fine wire draw dies, Wear guides, Compacting dies for extremely abrasive materials, Ceramics, Sand blast nozzles |
91.8-92.8
79.5-81.5 |
15.10-15.35 |
180,000 |
660,000 |
|
|
5% C-3 |
Hard fine grain, High wear, No shock |
Compacting dies, Glass cut-off wheels, Centerless grinder blades, Stamping dies for medium-hard plastics, glass fiber epoxy, rubber |
91.5-92.5
79.0-81.0 |
14.90-15.10 |
240,000 |
680,000 |
|
|
6% C-2, C-9,
C-1
|
High wear, Light
shock |
Draw dies, Seal rings, Compacting dies, Wear pads, Slitter rings, Spray nozzles, Scraper blades, Stamping dies for light blanking |
90.5-92.0
77.0-80.0 |
14.80-15.00 |
260,000 |
690,000 |
|
|
9% C-10 |
Good wear,
Light shock |
Bar and tube dies, Compacting dies (normal), Stamping dies (light), Medium size wire bending, Ironing dies, Mandrels, Cupping dies, Draw dies (normal) |
89.8-90.8
75.6-77.6 |
14.50-14.70 |
275,000 |
682,000 |
|
|
10% C-10 |
Good wear |
Stamping dies, Powder metal compacting dies, Draw dies (severe) |
89.5-90.5
75.0-77.0 |
14.40-14.60 |
280,000 |
675,000 |
|
|
11% C-11 |
Very high strength, Heavy impact, Low wear, Large grain |
Coining dies, Forming dies, Can die punches, Swaging dies, Cold forming, Very severe draw dies for .075" thick cold rolled steel |
88.0-89.0
72.0-74.0 |
14.30-14.50 |
420,000 |
650,000 |
|
|
12% C-12 |
Light impact, Medium wear, High abrasion resistance |
Stamping dies, Wear discs, Forming dies (normal), Lamination dies |
88.8-89.8
73.5-75.5 |
14.20-14.40 |
320,000 |
650,000 |
|
|
13% C-11,
C-12 |
Medium impact |
Stamping dies, Compacting dies (severe), Can die rings, Metal forming dies, Draw dies (severe), slitter rings |
88.5-89.5
73.0-75.0 |
14.10-14.30 |
340,000 |
639,000 |
|
|
14% C-12,
C-13 |
Medium impact,
Good wear |
Forming dies (severe), Ironing dies, Stamping dies |
88.0-89.0
72.0-74.0 |
14.00-14.20 |
360,000 |
600,000 |
|
|
15% C-13 |
Medium impact,
Good wear |
Stamping dies, Forming dies, Mandrels, Compacting dies, Deep draw dies for oil filters, Pulverizing blades, Gripper jaws, Swaging dies-aluminum |
87.5-88.5
71.0-73.0 |
13.90-14.10 |
375,000 |
554,000 |
|
|
16% C-13 |
Medium to heavy impact |
Heavy forming dies, Large mandrels, Spring tooling |
87.0-88.0
71.0-72.0 |
13.80-14.00 |
375,000 |
525,000 |
|
|
17% C-14 |
Medium shock,
Heavy impact |
Tube gripper jaws, Pulverizing hammers, Header dies |
86.0-87.0
69.0-71.0 |
13.70-13.90 |
375,000 |
500,000 |
|
|
20% C-14 |
Heavy shock,
Heavy impact |
Header dies |
83.0-84.5
63.0-66.0 |
13.40-13.60 |
380,000 |
483,000 |
|
|
25% C-14 |
Heavy shock,
Heavy impact |
Cold heading dies, Nail gripper dies, Swaging dies |
81.5-83.0
61.0-63.0 |
13.20-13.40 |
370,000 |
454,000 |
|
|
| |
|
6% C |
Higher wear,
Lower shock |
Circuit board drills, Stamping dies for mylar |
92.0-93.5
80.0-83.0 |
14.80-15.00 |
325,000 |
880,000 |
|
|
10% |
Very good wear,
Light shock
|
Coining brass (0.010" thick), Can die ironing rings, Compacting dies, Stamping dies for razor blades |
90.5-91.5
77.0-79.0 |
14.40-14.60 |
410,000 |
775,000 |
|
|
15% |
Low impact,
Very good wear
Very high strength |
Stamping dies for razor blades, Electronic stamping , Lead frames, Laminations, Spring, Steel stampings, Crush rolls, Coining dies - hard metal |
89.0-90.5
74.0-77.0 |
13.90-14.10 |
500,000 |
650,000 |
|
|
| |
|
6%
Nickel Binder |
Corrosion resistant,
Low shock |
Seal rings used in corrosive fluid pumps, food processing pumps and pumps exposed to radioactive environments |
90.5-92.0
77.0-80.0 |
14.80-15.00 |
250,000 |
610,000 |
|
|
10%
Nickel Binder |
Corrosion resistant,
Low shock
|
Seal rings used in corrosive fluid pumps, food processing pumps and pumps exposed to radioactive environments |
89.5-91.5
75.0-79.0 |
14.40-14.60 |
260,000 |
550,000 |
|
|
12%
Nickel Binder |
Corrosion resistant,
Low shock |
Surgical grippers, Can tooling, Battery tooling |
88.0-89.5
72.0-75.0 |
14.25-14.45 |
320,000 |
400,000 |
|
|
| |
|
