Menu
We offer you A36 and 1008 carbon steel (mild steel) in three surface finishes based on the most popular thicknesses:
Our mild steel is the go-to choice for fabricators, welders, machinists, prototypers, and anyone else who needs a strong, reliable part that is easy to work with.
With our three offerings of mild steel, it can be challenging to know which best suits your current project, so we’re going to help clear that up for you. If you have any more questions that weren’t covered here, be sure to email us at support@sendcutsend.com and our applications engineers will get back to you.
Our cold-rolled carbon steel is our customers’ favorite material to work with. Cold-rolled is basically just hot-rolled steel with additional processing. Those additional processes give it a cleaner edge, better surface quality, and more exact dimensions. Cold-rolled has exceptional refinement and tends to be a little stronger and harder than hot-rolled. For these reasons, cold-rolled is better suited for bending and fabrication.
Our hot rolled carbon steel is commercial mild steel, found in most industries as it offers good weldability and machinability. It’s sturdy and easy to work with. It has a scaled surface finish from the cooling process and as a result, it is free of internal stresses sometimes associated with further processing. Hot rolled steel can be used in bending but is more prone to cracking.
HRP&O steel is much smoother and easier to finish than the cheaper “mill finished hot-roll” that most steel centers sell. HRP&O is just hot-rolled steel that is subjected to an acid bath in order to remove scale mill. Then it has some dry oil applied to prevent rusting. Overall, it has a nicer finish.
| Details | |
|---|---|
| Advertised Thickness | .030″ |
| Gauge | 22 |
| Thickness Tolerance Positive | .003″ |
| Thickness Tolerance Negative | .003″ |
| Cutting Process | Fiber Laser |
| Cut Tolerance | .005″ |
| Steel Type | Cold Rolled (1008) |
| Available Operations | |
| Deburring | No |
| Bending | Yes |
| Countersinking | No |
| Tapping | No |
| Anodizing | No |
| Plating | No |
| Powder Coating | No |
| Hardware | No |
| Design Considerations | |
| Min Part Size | .25″ x .375″ |
| Max Part Size | 44″ x 30″ |
| Min Hole Size | .015″ |
| Min Bridge Size | .015″ |
| Min Hole to Edge Size | .020″ |
 | |
| Min Bend Part Size | .375″ x 1.5″ |
| Tab and Slot Tolerance | .010″
|
| Max Bending Flat Part Size | 44″ x 30″ |
| Max Bend Length | 44″ |
| Min Flange Length (Before Bend/Flat Pattern) 90° or less (obtuse) | .255″ |
| Min Flange Length (After Bend) 90° or less (obtuse) | .286″ |
| Die Width | .472″ |
| Effective Bend Radius @ 90° | .045″ |
| Max Bend Angle | 130° |
| Bend Deduction @ 90° | .0610″ |
| K Factor | .38 |
| Bend Relief Depth | .095 |
| Minimum Joggle BL2BL @90 Max Flange | .288″ |
| Maximum Joggle @90 Max Flange | 3.750″ |
| Properties | |
| Material Composition | Iron (Fe): 99.31 – 99.7 Manganese (Mn): 0.3 – 0.5 Carbon (C): 0 – 0.1 Sulfur (S): 0 – 0.05 Phosphorus (P): 0 – 0.04 |
| Density | 490 lb/ft^3 |
| Tensile Strength (Ultimate) | 54 ksi |
| Tensile Strength (Yield) | 45 ksi |
| Shear Strength | 34 ksi |
| Shear Modulus | 11000 ksi |
| Fatigue Strength | 32 ksi |
| Brinell Hardness | 100 |
| Elongation at Break | 22% |
| Elastic Modulus | 27000 ksi |
| Poisson’s Ratio | .29 |
| Thermal Conductivity | 36 BTU/h-ft-°F |
| Melting Point | 2600 °F |
| Magnetic | Yes |
| Does it Rust? | Yes |
Not sure what some of those properties mean? Check out our Material Properties Cheat Sheet.
| Details | |
|---|---|
| Advertised Thickness | .76mm |
| Gauge | 22 |
| Thickness Tolerance Positive | .08mm |
| Thickness Tolerance Negative | .08mm |
| Cutting Process | Fiber Laser |
| Cut Tolerance | .127mm |
| Steel Type | Cold Rolled (1008) |
| Available Operations | |
| Deburring | No |
| Bending | Yes |
| Countersinking | No |
| Tapping | No |
| Anodizing | No |
| Plating | No |
| Powder Coating | No |
| Hardware | No |
| Design Considerations | |
| Min Part Size | 6.35 x 9.5mm |
| Max Part Size | 584.2 x 762mm |
| Min Hole Size | .38mm |
| Min Bridge Size | .38mm |
| Min Hole to Edge Size | .51mm |
| |
| Min Bend Part Size | 9.5 x 38.1mm |
| Tab and Slot Tolerance | .254 |
| Max Bending Flat Part Size | 1117.6 x 762mm |
| Max Bend Length | 1117.6mm |
| Min Flange Length (Before Bend/Flat Pattern) 90° or less (obtuse) | 6.48mm |
| Min Flange Length (After Bend) 90° or less (obtuse) | 7.26mm |
| Die Width | 12.0mm |
| Effective Bend Radius @ 90° | 1.14mm |
| Max Bend Angle | 130° |
| Bend Deduction @ 90° | 1.55mm |
| K Factor | .38 |
| Bend Relief Depth | 2.41mm |
| Minimum Joggle BL2BL @90 Max Flange | 7.32mm |
| Maximum Joggle @90 Max Flange | 95.25mm |
| Properties | |
| Material Composition | Iron (Fe): 99.31 – 99.7 Manganese (Mn): 0.3 – 0.5 Carbon (C): 0 – 0.1 Sulfur (S): 0 – 0.05 Phosphorus (P): 0 – 0.04 |
| Density | 490 lb/ft^3 |
| Tensile Strength (Ultimate) | 54 ksi |
| Tensile Strength (Yield) | 45 ksi |
| Shear Strength | 34 ksi |
| Shear Modulus | 11000 ksi |
| Fatigue Strength | 32 ksi |
| Brinell Hardness | 100 |
| Elongation at Break | 22% |
| Elastic Modulus | 27000 ksi |
| Poisson’s Ratio | .29 |
| Thermal Conductivity | 36 BTU/h-ft-°F |
| Melting Point | 2600 °F |
| Magnetic | Yes |
| Does it Rust? | Yes |
Not sure what some of those properties mean? Check out our Material Properties Cheat Sheet.
You’ll never be hit with surprise costs or bait and switch marketing. Big or small, complex or straightforward, we want to help you leverage modern laser cutting to bring your project to life. Period.
Why? Because if you’re here, you’re like us, and we want to see what you can do with our services. We want you to succeed.
We know your projects are multi-dimensional. Get freshly bent metal parts, right off the machine.
Protect your designs with plating. Zinc electroplating helps defend your parts from rust while increasing strength and resistance to wear.
Custom powder coating gives your laser and waterjet cut parts a bold, long-lasting finish and protective layer which provides corrosion, oxidation, and damage resistance.
Utilizing specialized, automated equipment, we precisely laser-cut a hole, create some threading, and send you on your way with your completed part.
This June, Spend $1,000 or more at checkout, you’ll receive 5% off instantly + a $200 gift card towards a future purchase.
"*" indicates required fields
We proudly use hardware by PEM
| SKU | SO-440-8 |
| Thread Size | 4-40 x .250″ |
| Hole size in sheet (+0.003/-.0.000) | .168″ |
| Minimum sheet thickness | 0.040″ |
| Maximum sheet thickness | .125″ |
| Fastener material | Steel |
| Minimum distance hole C/L to edge | 0.230″ |
| When determining the distance between two or more fasteners, you can calculate the distance by the formula, C/L to edge + 1/2 the diameter of the second mounting hole. | .314″ |
| Recommended panel material | Steel/Aluminum |
| Coating type | Zinc |
| Length | .250″ |
| Aluminum material ranges (5052, 6061, 7075) | 0.040″-0.125″ |
| Steel material ranges (CRS, HRPO, HR) | 0.048″-0.119″ |
