PACIFIC 12Ll4 is a leaded, resulfurized and rephosphorized grade with the highest machinability rating of standard AISI/SAE grades. It is particularly adaptable to automatic screw machines and produces an excellent surface finish. Welding is not recommended because of the high sulfur content. It can be case hardened with light to moderate case depths.
CHEMICAL COMPOSITION: Heat Analysis - ranges and limits %
| C | Mn | P | S | Pb |
|---|---|---|---|---|
| .15 max | .85/1.15 | .04/.09 | .26/.35 | .15/.35 |
TYPICAL PROPERTIES: Approximate - not for specification
| Condition | Tensile (psi) | Yield (psi) | Elongation | Hardness | Machinability |
|---|---|---|---|---|---|
| Cold Drawn | 78,000 |
60,000 |
10% |
163 HB |
160% |
| Turned & Polished* | 57,000 |
34,000 |
20% |
121 HB |
66% |
*Hot finished properties (no cold working).
PROCESSING TEMPERATURES: Typical
| Forge | Normalize | Case Harden |
|---|---|---|
** |
** |
1500/1700°F |
**Normally Not Required
Shapes and Conditions Available:
 | Cold Drawn Rounds through 5-1/2" Diameter
| Turned & Polished Rounds from 6" through 7" Diameter
| Cold Drawn Hexagons through 3"
| |
