Please fill all required fields
PROGRAM:
BOLT TORQUE CALCULATIONS
K--FACTOR LIST
>DATA<
0.200 NON-LUB (USE THIS IF UNKNOWN)
NOMINAL BOLT DIA.>
< INCHES
0.132 FEL-PRO
THD/IN...........>
< TH/ INCH
0.137 MOLY GREASE
LUB. FACTOR--K...>
< DIMENSIONLESS
0.123 LIGHT OIL
MAT'L YIELD ST...>
< LBS/SQ IN
PERCENT PRELOAD..>
< % PERCENT OF YIELD
MAT'L YIELD ST. LIST (TYP)
REC. 50% TO 70%
36000
GRADE 1 BOLT MAT'L
MAX. 80% OF YIELD
57000
GRADE 2 BOLT MAT'L
92000
GR 5 BOLT MAT'L
>RESULTS<
130000 GRADE 8 BOLT MAT'L
PRELOAD.........>
<
POUNDS
95000
AISI 4140 ST
STRESS AREA.....>
<
SQ INCHES
125000 AISI 4340 ST
STRESS AT THDS..>
<
LBS/SQ IN
51000
AISI 1045 ST
TORQUE..........>
<
INCH POUNDS
42000
AISI 1018 ST
>
<
FT POUNDS
36000
ASTM A36 ST
110000 ASTM 422 STAIN ST
STRETCH CALCULATIONS:
95000
ASTM 410 STAIN ST
>DATA<
50000
ASTM 304 STAIN ST
ENTER NOMINAL BOLT DIA. IN TORQUE CALC.DATA
27000
NAVAL BRASS 464
EFF. LEN. OF THDS>
<
INCHES
THREADED
15000
CAST IRON CLASS 25
EFF. LEN. OF BODY>
<
INCHES
UNTHREADED
40000
DUCTILE IRON 60/40
MOD. OF ELAST....>
<
LBS/SQ IN
MODULUS OF ELASTICITY LIST:
>RESULTS<
30000000 STEEL
BODY AREA........>
<
SQ INCHES
28000000 STAIN. STEEL
STRETCH..........>
<
INCHES
15000000 CAST IRON, GRAY
NO. OF FLATS.....>
<
15000000 BRONZE
13500000 BRASS
10000000 ALUMINUM
THREAD STRENGTH CALCULATIONS:
>DATA<
ENTER NOMINAL BOLT DIA. & THD/IN
IN TORQUE CALC.DATA
THD ENGAGEMENT L.>
<
INCHES
BOLT MAT'L YIELD >
<
LBS/SQ INCH
NUT MAT'L YIELD
>
<
LBS/SQ INCH
>RESULTS<
ROOT DIA. THDS...>
<
INCHES
PITCH DIA. THDS..>
<
INCHES
THD PITCH........>
<
INCHES
BOLT STRIP AREA..>
<
SQ INCHES
NUT STRIP AREA...>
<
SQ INCHES
FACTOR OF SAFETY
BOLT THD STRESS..>
<
LBS/SQ INCH
>
NUT THD STRESS...>
<
LBS/SQ INCH
>
NOTE DISCLAIMER STATEMENT ON HPAEC WEB SITE
RETURN TO HpAEC
The browser does not support JavaScript. The calculations created using
SpreadsheetConverter
will not work. Please access the web page using another browser.