PACIFIC 1045 cold finished bars are medium carbon steel and have strengths above 1018 but below the heat treated alloy grades. 1045 can be heat treated and is often induction hardened for surface strength and wear resistance. PACIFIC 1045 Cold Finished Bars are offered in three quality conditions:
TURNED & POLISHED offers medium carbon strength at the lowest cost. Manufacturing tolerances are the widest for this condition. It is stocked in popular shafting sizes from 1-15/16" through 6-15/16" diameters.
ARROW-TEN® PRECISION SHAFTING is ground and polished to insure tight diameter tolerances and 16 rms maximum surface finish. ARROW-TEN® has been successfully used in many higher rpm, medium load applications such as shafts, spindles and arbors.
RING GAGE QUALITY bars offer the qualities of ARROW-TEN® with the added benefit of having been individually ring gauged. This is to insure that bearings will slip over the entire length of the bar with minimal effort.
CHEMICAL COMPOSITION: Heat Analysis - ranges and limits %
| C | Mn | P | S |
|---|---|---|---|
| .43/.50 | .60/.90 | .040 max | .050 max |
TYPICAL PROPERTIES: Approximate - not for specification
| Condition | Tensile (psi) | Yield (psi) | Elongation | Hardness | Machinability |
|---|---|---|---|---|---|
| Cold Drawn* | 91,000 |
77,000 |
12% |
179 HB |
56% |
| Turned & Polished* | 82,000 |
45,000 |
16% |
163 HB |
56% |
*Turned & Polished bars usually have hot rolled bar mechanical properties. Ground and polished bars have either cold drawn or hot rolled properties.
PROCESSING TEMPERATURES: Typical
| Forge | Normalize | Harden |
|---|---|---|
2275°F max |
1550/1650°F |
1525/1600°F |
Shapes and Conditions Available:
 | Turned & Polished Rounds from 1-15/16" through 6-7/16" Diameter
| Ground & Polished Rounds through 5-1/2" Diameter
| Ring Gauge Quality Rounds from 1" through 3-15/16" Diameter
| |
