|
Cold
Rolled Materials
 | 1018 is a low carbon, high manganese bar steel, which is
normally available with a cold drawn finish. Typical analysis is shown in the chart below:
| Carbon |
Manganese |
Phosphorus |
Sulfur |
| .015% - 0.20 % |
0.60% - 0.90% |
0.4% Max. |
0.05% Max. |
|
| 1018 is suitable for carburized parts requiring soft core and
high surface hardness. typical applications include: gears, pinions, worms,
king pins, ratchets, dogs, machine parts, jigs & fixtures, structures, equipment
manufacturing & repair. |
| Minimum Mechanical Properties (Cold Drawn)
| Size,
inches |
Tensile
Strength PSI |
Yield
Point, PSI |
Elongation
in 2" |
Reduction
of area |
Brinell
Hardness |
| 5/8 to 7/8 |
70,000 |
60,000 |
18% |
40% |
143 |
| Over 7/8 to 1-1/4 |
65,000 |
55,000 |
16% |
40% |
131 |
| Over 1-1/4 to 2 |
60,000 |
50,000 |
15% |
35% |
121 |
| Over 2 to 3 |
55,000 |
45,000 |
15% |
35% |
111 |
|
| Cold Drawn Followed by High Temperature Stress Relief
| Size, Inches |
Tensile
Strength PSI |
Yield
Point, PSI |
Elongation
in 2" |
Reduction
of area |
Brinell
Hardness |
| 5/8 - 7/8 |
65,000 |
45,000 |
20% |
45% |
131 |
| Over 7/8 - 1-1/4 |
60,000 |
45,000 |
20% |
45% |
121 |
| Over 1-1/4 - 2 |
55,000 |
45,000 |
16% |
40% |
111 |
| Over 2 - 3 |
50,000 |
45,000 |
15% |
40% |
101 |
|
| Hardening: Any standard carburizing method and subsequent heat
treatment will work well. For case hardening and tough core, carburize at 1700°F for
about 8 hours. Cool in box and reheat to 1450°F. Quench in water and draw at 350°F. |
| Grinding: 1018 cold finished steel in thin sections is not
recommended without first stress relieving. High Stresses due to cold finishing are
released in the grinding process causing severe warpage in smaller sections. |
| Machinability: 1018 is rated 78% based in 1212 as 100%. Average
surface cutting is 130 fpm. |
| Weldability: 1018 is easily welded by all welding processes.
The resultant weld and joints are of extremely high quality. The grade of welding rod to
be used depends on the thickness section, design, service requirements, etc. |
For More Information please call or fax us at
800-654-2901 (fax) 860-684-6354
|
