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Technical Specifications & Available Steel Grades
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Tool Steel: A8 mod, H10, H13 (ESR), L3, L6, S1, S7, and more.
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High-Performance Steel: Toolox 33, Toolox 44, and 2990 mod.
- Stainless Steel: 303, 304, 316L, 410, 420 (ESR/RM/LC), 440C, etc.
- Plastic Mold & Alloy Steel: P20 (+Ni/PH), 4140, 4142, 5115, 52100.
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High-Speed Steel (HSS): M2 and PM M4 HC for extreme wear resistance.
Tolerances (Metric & Imperial)
| Product Type | Thickness Tolerance | Width Tolerance | Length Tolerance |
|---|---|---|---|
| Flat Stock (Imperial) | +0.015" / +0.035" | +0.125" / +0.250" | +0.500" / -0.000" |
| Flat Stock (Metric) | +0.4 / -0 mm | +3 / -0 mm | +15 / -0 mm |
| Regular (Imperial) | +/- 0.001" | +0.125" / +0.250" | +0.500" / -0.000" |
| Regular (Metric) | +0.05 / -0 mm | +3 / -0 mm | +15 / -0 mm |
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What is Flat Stock and how is it used?
- Tool & Die Making: Using S7 or H13 for high-impact tools.
- Automotive & Aerospace: High-strength alloys like 4140.
- Medical & Food Industry: Corrosion-resistant grades like 316L or 440C.
- Machine Building: Precision components using Toolox 44 for maximum durability.


Flat Stock vs. Steel Flat Bar: What’s the difference?
When deciding between Flat Stock and Steel Flat Bar, the choice depends on your precision requirements:
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Precision: Flat Stock is typically ground or fine-milled with tight tolerances (+/- 0.001"), whereas Flat Bars often have a rougher, hot-rolled finish.
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Dimensions: Flat Stock is available in much larger widths and thicknesses, ideal for custom plates and tool blocks.
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Material Variety: While Flat Bars are usually limited to carbon steel (A36), ABRAMS Flat Stock is available in specialty grades like HSS, Stainless, and Tool Steel.