| Grade/Material: |
* En6a, (080M30 -
1030) Medium High Tensile steel for shafts and medium
stressed parts
* En8, (080M40 - 1040) Medium High Tensile
steel for shafts and parts requiring 620mpa |
| |
|
| Specifications: |
BS970 Part 1 1983 080M30, 080M40
BS46 Part 1
1958 superceded
BS4235 Part 1 1972
superceded |
| |
|
| Approximate Physical
Properties |
|
Tensile Strength
Yield
%elong. In
2”
%red. Of area in 2”
Brinell hardness
range |
75/85,000lb/in
60/70,000
lb/in
18 - 25%
50 -
55%
150-155 |
| |
|
| Mineral
Content |
|
C%
Si%
Mn%
P%
S%
Cr% |
.40 - .50
.20
- .30
.50 - .90
.005 - .03
.002 - .05
.000 -
.30 |
| |
|
| Tolerances |
|
Imperial
(plus)
¾” and below
7/8” to 1 ½”
1 5/8” to
2” |
-0.000” to +.003”
-0.000” to
+.004”
-0.000” to +.005” |
| |
| Metric (minus) |
6mm & below
8mm to 12mm
14mm to 20mm
8 x
7mm to 16 x 10mm
18 x 11mm to 32 x 18mm
36 x
20mm to 50 x 28mm |
0.000 to -.30
0.000 to .043
0.000 to .062
0.035
x 0.09
-0.052 x 0.11
-0.062 x 0.13 |
| |
 |
Our Keysteel is produced from specially processed steel
bars of the type universally used to make machine keys.
It may be used in all types of power transmission where
a shaft is keyed to a rotating drive mechanism.
In factory, machine shop and garage work, repairs and
replacement of machine keys - in fact maintenance of any
keyed assembly - |
|
