Services available for AR400 Steel

Tumbling

Minimize surface imperfections and handling scratches commonly found in raw materials.

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Material Details

.250" AR400

AR400 .250" General Details INCH MM
Advertised Thickness 0.250" 6.35 mm
Gauge N/A N/A
Thickness tolerance positive 0.040" 1.016 mm
Thickness tolerance negative 0.040" 1.016 mm
Mill Finish Hot Rolled Hot Rolled
Top/Bottom finish Identical both sides Identical both sides
Sourced from USA/Global USA/Global
Laser Cutting Specification INCH MM
Cutting process Fiber laser Fiber laser
Cut tolerance +/- 0.005" 0.127 mm
Flatness tolerance before cutting +/-0.030 per foot +/-0.030 per foot
Min part size .500″ x .750″ 12.7 mm x 19.05 mm
Max part size 44″ x 30″ 1117.6 mm x 762 mm
Min hole size .088″ 2.235 mm
Min bridge size .125″ 3.175 mm
Min hole to edge distance .075 1.905 mm
Tab and slot tolerance .050" 0.254 mm
Tumble Specifications INCH MM
Min Part Size Tumbling 0.5″ x 1.5″ 12.7 mm x 38.1 mm
Max Part Size Tumbling 4″ x 7″ 101.6 mm x 177.8 mm
AR400 .250" Properties INCH MM
Material Composition Iron (Fe): 97 Manganese (Mn): 1.5 Silicon (Si): 0.50 Chromium (Cr): 0.45 Carbon (C): 0.20 Molybdenum (Mo): 0.050 Phosphorus (P): 0.025 Sulfur (S): 0.0050 Iron (Fe): 97 Manganese (Mn): 1.5 Silicon (Si): 0.50 Chromium (Cr): 0.45 Carbon (C): 0.20 Molybdenum (Mo): 0.050 Phosphorus (P): 0.025 Sulfur (S): 0.0050
Density 497.66 lb/ft^3 497.66 lb/ft^3
Heat treatments process Quenched Quenched
Tensile Strength (Ultimate) 191 ksi 192 ksi
Tensile Strength (Yield) 172 ksi 172 ksi
Shear Strength 240-260 ksi 240-260 ksi
Shear Modulus 12000 ksi 12000 ksi
Fatigue Strength 16 ksi 16 ksi
Brinell Hardness 363-440 363-440
Elongation at Break 10% 10%
Elastic Modulus 30000 ksi 30000 ksi
Poisson’s Ratio 0.29 0.29
Thermal Conductivity 40 BTU/h-ft °F 40 BTU/h-ft °F
Melting Point 2500 - 2800 °F 2500 - 2800 °F
Magnetic Yes Yes
Does it Rust Yes Yes
Frequently Asked Questions
What are the standard production times?

Your estimated shipping date is dynamically calculated in your shopping cart as you add parts and services. Generally, production times for standard orders, excluding additional services such as bending or finishing, range from 2-4 business days prior to shipping.

The cut tolerance varies by material and is influenced by both the cutting processused and the material's thickness. For detailed tolerance information for each material,please visit our Materials Library. Select the material you are interested in, navigate to the Material Details section, choose your desired thickness, and review the specific tolerance data provided.

Discounts based on quantity are automatically calculated during the quoting process. As you add parts to your cart, you'll notice discounts of 20% or more when you order two or more identical parts in most materials. For even more substantial savings, consider signing up for our mailing list to receive notifications about exclusive, limited-time offers!

At our facility, we accept orders ranging from a single piece . With no minimum order requirement, you can request precisely the number of parts your project requires.

If you're unable to select a material for your part, it's often due to the part size being either too large or too small for the available materials. Please verify that your design file is set up at a 1:1 scale and is in either inches or millimeters. After uploading your file, also ensure that the correct unit of measurement is selected to match your design specifications.

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