Description
ASTM A105 Round Bars
ASTM A105 Round Bars steel bar is a steel specification for low carbon forged components. Textron Steel & Alloys Company stocks many diameters of A105 Hot Rolled Steel rounds to meet the market demands. We supply A105 steel bar to various industries including oil & gas.
ASTM A105 Round Bar is an ASTM steel specification mainly used for carbon steel forged piping components. This type of carbon steel forging alloy involved is a low carbon, manganese and silicon containing steel similar to AISI 1330, but with lower manganese content.
ASTM A105 (2003) Carbon Steel can be forged at temperatures in the range of 2200 to 1700 F followed by quenching and tempering or normalizing. The actual hot forging temperatures in closed die forging process will be decided by a number of factors, such as complexity of the forged part.
The proper temperature of forging can only be checked at the beginning of forging, higher temperature will probably cause surface defects, such as mill scales, which will bring uneven surface. And lower temperature will be not conducive to the plastic deformation of C1045 carbon steel forged part.
A105 forgings are limited to a maximum weight of 4540 kg [10000 lb].
Chemical Composition of A105 Hot Rolled Round Bar :
| Element | % |
| Carbon (max) | 0.35 |
| Manganese* | 0.60-1.05 |
| Phosphorus (max) | 0.035 |
| Sulfur (max) | 0.040 |
| Silicon | 0.10-0.35 |
| Copper (max) | 0.40 |
| Nickel (max) | 0.40 |
| Chromium (max) | 0.30 |
| Molybdenum (max) | 0.12 |
| Vanadium (max) | 0.08 |
| Niobium (max) | 0.02 |
*Manganese can be up to 1.65% with decrease in Carbon
For each reduction of 0.01 % below the specified carbon maximum (0.35 %), an increase of 0.06 % manganese above the specified maximum (1.05 %) will be permitted up to a maximum of 1.65 %.
Machinability of A105 :
Machinability of A105 carbon steel forging is good as for any of the low alloy steels.
Applications of A105 Hot Rolled Round Bar :
Typical applications for this grade of steel include pipes, valves and flanges.
This ASTM A105 specification covers carbon steel forgings for piping applications such as flanges and fittings (45°eblow, 90° eblow, tee, coulping, etc)
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