metal enclosures > General Information

MATERIAL & FINISH
Cans and covers can be manufactured from various materials and alloys. The following is a list, with
abbreviations, of the more commonly used materials.

Al - Aluminum: Type 1100-0 per QQ-A-250/1
Br - Brass: (70% Copper, 30% Zinc) or Rich Low (85% Copper, 15% Zinc) per QQ-B-613 comp 4 CDA 230
CRS - Cold Rolled Steel: C1010 per ASTM-620
Cu - Copper: per QQ-C-576, CDA 110 / ASTM-B-152
CuNi - Cupro Nickel: (70% Copper, 30% Nickel) per ASTM B122 alloy 715, CDA 175
Hy Mu 80: (80% Nickel, 5% Molybdenum, 0.5% Silicon, 0.02% Copper, balance Iron)
NiSi - Nickel Silver: (65% Copper, 18% Nickel, 17% Zinc) per ASTM B122 alloy 752, CDA 752
SS - Stainless Steel: Type 304 (18% Chromium, 8% Nickel) per QQ-S-766/ASTM-240

Quality work in all drawable materials and alloys such as Kovar, inconel, monel, nickel, and many others. Complete specifications are given upon request. Standard cans and covers are degreased only. Added finish to meet your exact requirements is available upon request.

CUSTOM MODIFICATIONS        
Modify catalog or custom enclosures to your specified  designs.  As a full service manufacturer, some of our capabilities include hardware installation such as weld screws, inserts, fasteners, and terminals, as well as spot welding, brazing, soldering and a variety of production  machining.       

DIMENSIONS AND TOLERANCES
All dimensions and tolerances are in inches. The material thickness at the closed end of the cans will be thicker than the side walls. This is due to the deep drawing process and depends on the depth and number of draws.
DIM. “A” and DIM. “B”    
Allowable Bow Per Side for
  Tol.  Sq. & Rct. Dim. A

0.000 to 0.749
0.750 to 1.499
1.500 to 1.999
2.000 to 3.499
3.500 & over  

+.005/-.005
+.008/-.008
+.010/-.010
+.015/-.015
+.020/-.020

.005
.008
.010
.015
.020
LENGTH “C”    
0.000 to 3.999  +/-.015  
4.000 and over  +/-.031  
RADIUS:    “SR”  +.010/-.010
  “TR”  +.015/-.015
MATERIAL THICK “T”       
  .010 +/-.002
  .012, .016, .019, .025 +.002/-.003
  .030, .036, .042 +.002/-.004
  .048 and over  +.005/-.005
BURR TOLERANCES     
  THICK “T” Max. Burr
  Up to .010 .001
  .011 to .025       .002
  .026 to .065 .003
  .066 & over  .004

COVERS         
Dimensions are given as a reference to insure proper mating with the enclosure.
LENGTH “C”                                          +/-.010
MINIMUM RADIUS will be as small as practical design permits, approximately 1/32 R.
HOW TO ORDER
A.  Standard Items          
1 – Quantity required
2 – Part Number, Length
3 – Type of Material
4 – Cover Part Number and Mat’l if covers
are to be purchased
5 – Finish
6 – It is recommended that matching cans and covers be ordered together to insure proper fit
B.  Non-standard Items Modification
New drawn enclosures or custom shapes may be quickly and economically manufactured employing partial use of already existing standard tooling.          
All requests should be accompanied by a drawing showing all dimensions and  information on terminals, inserts, studs, or other components to be attached to can or cover.