Welcome to BERMAG Corp., Inc.

Contact BERMAG Industries, LLC
info@bermag.com
(270) 236-2047
(270) 236-2445 fax
PO Box 227
2251 State Route 125
Hickman, KY 42050

Specifications

Size Tolerances (typical)

Inch Metric

0 to 2" ± .005" 0 to 50mm ± .15mm

2 to 6" ± .010" 50 to 150mm ± .25mm

6 to 9" ± .012" 150 to 250mm ± .30mm

9 to 12" ± .015" 250 to 300mm ± .40mm

Over 12" add ± .0014" per additional inch Over 300mm add ± .036mm per additional mm

*(Add .010" across parting lines) *(Add .25mm across parting lines)

Angular tolerance is ± 1/2°
Note: BERMAG's processes may permit closer tolerances if required.
Consult BERMAG's Engineering Department.

Flatness and Straightness
Flatness: .002in./in. (0.040" max)
Straightness: .002in./in. (0.040" max)

Minimum Radius:
.015" (.4mm)

Wall Thickness:
Optimum is .080" to .120" (2 to 3mm). However, wall thickness down to .040" (1mm) is possible.

Draft:
From 1/2° to 2°. (Zero draft is possible in specific areas.)

Surface Finish
Our average is 80 microinches.

Weight Range
1 oz. to 200 lbs.

Holes and Openings
Normal casting processes require that holes be no deeper than the hole diameter and be no smaller than .200".

Stress Relieving/Heat Treating
In-house heat treating as required, per customer specifications.

Technical Information

Aluminum Alloys

Mechanical Properties

Alloy Heat
Treating Ultimate
Tensile
Strength
KSI Min. Yield
Strength
Set at
2% KSI Elongation
% in 2" Hardness
Rockwell
E Scale
1/16" Ball Pressure
Tightness Machin-
ability

319.0	T6	36	24	2.0	85.5	B	A
355.0	T51	28	23	1.5	76.0	A	C
355.0	T6	35	25	3.0	85.5	A	B
C355.0	T6	39	29	5.0	89	A	B
356.0	T51	25	20	2.0	71	A	C
356.0	T6	33	24	3.5	79	A	A
A356.0	T51	26	18	3.0	71	A	C
A356.0	T6	40	30	6.0	82.5	A	A
357.0	T51	26	17	3.0	80	B	C
357.0	T6	45	35	3.0	91	B	B
A357.0	T6	45	35	3.0	89	B	B
380.0	None	46	23	3.5	85.5	B	C

Zinc Alloys

ZA3	None	41	-	10.0	87	C	C
ZA8	None	34	30	1.5	95.5	C	C
ZA12	None	43	30	2.0	93	C	B
ZA27	None	61	46	9.5	100	C	B

Bronze Alloys

C873

None

18
(0.5%)

35.0

85
(HB@500kg load)

*These values are for separately cast test bars, and are typical values.

Test 30 days after casting

A = Excellent
B = Good
C = Fair

Applicable Military Specifications

     > System Control to MIL-1-45208
     > Radiographic Inspection to MIL-STD-453, MIL-STD-2175
     > Penetrant Inspection to MIL-STD-6866
     > Mechanical/Chemical Inspection to MIL-A-21180 QQ-A-601, AMS-4217
     > Heat Treat to MIL-H-6088
     > Gage Control to MIL-STD-45662