Hot Rolled and Cold Drawn Special Bar Quality (SBQ) rounds, squares and hexes are the DNA of Eaton Steel. We are the largest SBQ distributor in North America providing more than 300,000 tons of steel bars annually.
Eaton Steel produces more than 500 stock parts and customized chemistries based on your specifications. Alloy additions to the steel provide a greater depth of capability for your engineers as they design your products. Below is a list of commonly used alloying elements and their general effect on SBQ steel bars.
| Element | Percentage | Positive Attributes | Negative Attributes |
|---|---|---|---|
| Carbon | Strength | Ductility | |
| Hardness | Weldability | ||
| Hardenability | |||
| Manganese | 0.30/1.15 | Surface Quality | Machinability |
| (Favoring MnS to FeS inclusions) | Weldability | ||
| Strength | Machinability | ||
| 1.20/1.65 | Weldability | ||
| Surface Quality | |||
| Over 1.65 | Hardenability | Machinability | |
| Weldability | |||
| Phosphorus | 0.040 Max | (No special benefits) | Ductility, Toughness |
| 0.04/0.12 | Machinability | Ductility, Toughness | |
| (Desirable chip formation) | Impact Resistance | ||
| Sulfur | Under ~ 0.006 | Surface Quality | Machinability |
| (Due to absence of sulfur) | (Poor chip formation) | ||
| 0.01/0.05 | (No special benefits) | Chemical Impurity | |
| 0.06/0.40 | Machinability | Traverse Properties | |
| Additive | Impact Resistance | ||
| Weldability | |||
| Cold Formability | |||
| Silicon | 0.10/0.40 | Deoxidizer | Machinability |
| Over 1.00 | Strength of Ferrite | Machinability | |
| Sag Resistance | Decarburization | ||
| (Spring Steel) | |||
| Nickel | 0.01/0.25 | Strength (Microalloy) | Machinability |
| 0.30/0.80 | Hardenability | Machinability | |
| ~1.00/4.00 | Low-Temperature | Machinability | |
| Toughness | |||
| Chromium | 0.01/0.25 | Strength (Microalloy) | Machinability |
| 0.30/0.80 | Hardenability | Machinability | |
| ~1.00/2.00 | Abrasion Resistance (Carbide Formation) | Machinability | |
| High Temperature Strength | |||
| Hardenability | |||
| Molybdenum | 0.08/.060 | Hardenability | Machinability |
| Creep Strength | Weldability | ||
| High Temperature | |||
| Strength | |||
| Copper | 0.20 Max. | Strength (Microalloy) | Surface Quality |
| 0.20/0.50 | Corrosion Resistance | Surface Quality | |
| Forgeability | |||
| Over 1.00 | Yield Strength (Alloy) | Ductility | |
| Impact Resistance | |||
| Forgeability | |||
| Nitrogen | 0.020 Max. | Strength (Microalloy) | Cold Formability |
| Yield Strength (Microalloy) | Ductility | ||
| Aluminum | Deoxidizer | Machinability | |
| Grain Refiner | |||
| 0.95/1.30 | Ability to Nitride | ||
| Columbium | Deoxidizer | Machinability | |
| Grain Refiner | Weldability | ||
| Strength (Microalloy) | Toughness | ||
| Carbide Formation | Hardenability (via Carbon Impoverishment) | ||
| Vanadium | 0.05/0.20 | Deoxidizer | Machinability |
| Grain Refiner | Ductility | ||
| Strength (Microalloy) | |||
| Wear Resistance | |||
| Titanium | Deoxidizer | Machinability | |
| Grain Refiner | |||
| Nitrogen Scavenger | |||
| Boron | 0.0005 Min. | Hardenability | Weldability |
| Nitrogen Scavenger | Low-Temperature | ||
| Toughness | |||
| Lead/Bismuth | 0.10/0.40 | Machinability | Embrittlement @ 600+ Degree F |
| Tellurium | Machinability | Surface Quality (Member of Sulfur Family) | |
| (Sulfide Inclusion Modifier) | |||
| Calcium | Machinability | Susceptibility to Rolling Contact Fatigue | |
| Inclusion Modifier | |||
| Desulfurization | |||
| Castability |
