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Material Details

.050" 4130 Chromoly Steel

4130 Chromoly Steel .050" General Details INCH MM
Advertised Thickness 0.050" 1.27 mm
Gauge N/A N/A
Thickness tolerance positive 0.003" 0.076 mm
Thickness tolerance negative 0.003" 0.076 mm
Mill Finish Hot Rolled Finished in Oil Hot Rolled Finished in Oil
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 .25″ x .375″ 6.35 x 9.525 mm
Max part size 44″ x 30″ 1117.6 mm x 762 mm
Min hole size .020″ 0.508 mm
Min bridge size .025″ 0.635 mm
Min hole to edge distance .020 0.508 mm
Tab and slot tolerance .010" 0.254 mm
Bending Specifications INCH MM
Min Bend Part Size .375" x 1.5" 9.525 mm x 38.1 mm
Max bending flat part size 44″ x 30″ 1117.6 x 762 mm
Max Bend Length 44″ 1117.6 mm
Min Flange Length (Before Bend/Flat Pattern) 90° or less (obtuse) 0.255″ 6.477 mm
Min Flange Length (After Bend) 90° or less (obtuse) 0.303" 7.696 mm
Minimum Length Center of bend line 91-130* (Acute) 0.332" 8.433 mm
Die Width 0.472″ 11.989 mm
Effective Bend Radius @ 90° 0.050″ 1.27 mm
Max Bend Angle 130° 130°
Bend angle tolerance (bend length up to 24″) +/- 1 degree +/- 1 degree
Bend angle tolerance (bend length over 24″) +/- 2 degrees +/- 2 degrees
Bend Deduction @ 90° 0.095″ 2.413 mm
K Factor 0.38 0.38
Bend Relief Depth 0.120″ 3.048 mm
Minimum Joggle Bend line to bend line @90° Max Flange 0.310" 7.874 mm
Maximum Joggle Bend line to bend line @90° Max Flange 3.750″ 95.25mm
Plating Specifications INCH MM
Min Plating Part Size 1″ x 3″ 25.4 mm x 76.2 mm
Max Plating Part Size 23″ x 23″ 584.2 mm x 584.2 mm
Powder Coating Specifications INCH MM
Min powder coating part size 1″ x 3″ 25.4 mm x 76.2 mm
Max powder coating part size 23″ x 23″ 584.2 mm x 584.2 mm
4130 Chromoly Steel .050" Properties INCH MM
Material Composition Chromium (Cr): 0.8 – 1.1 Manganese (Mn): 0.4 – 0.6 Carbon (C): 0.28 – 0.33 Silicon (Si): 0.15 – 0.35 Molybdenum (Mo): 0.15 – 0.25 Sulfur (S): 0 – 0.040 Phosphorus (P): 0 – 0.035 Chromium (Cr): 0.8 – 1.1 Manganese (Mn): 0.4 – 0.6 Carbon (C): 0.28 – 0.33 Silicon (Si): 0.15 – 0.35 Molybdenum (Mo): 0.15 – 0.25 Sulfur (S): 0 – 0.040 Phosphorus (P): 0 – 0.035
Density 490 lb/ft^3 490 lb/ft^3
Heat treatments process Annealed/spheroidized Annealed/spheroidized
ASTM A505/506 A505/506
Tensile Strength (Ultimate) 77-150 ksi 77-150 ksi
Tensile Strength (Yield) 63-140 ksi 63-140 ksi
Shear Strength 49-93 ksi 49-93 ksi
Shear Modulus 11000 ksi 11000 ksi
Fatigue Strength 47-93 ksi 47-93 ksi
Brinell Hardness 135-140 135-140
Elongation at Break 15% 15%
Elastic Modulus 27000 ksi 27000 ksi
Poisson’s Ratio 0.29 0.29
Thermal Conductivity 26.5 BTU/h-ft °F 26.5 BTU/h-ft °F
Melting Point 2599 °F 2599 °F
Magnetic Yes Yes
Does it Rust Yes Yes

.063" 4130 Chromoly Steel

4130 Chromoly Steel .063" General Details INCH MM
Advertised Thickness 0.063" 1.6 mm
Gauge N/A N/A
Thickness tolerance positive 0.006" 0.152 mm
Thickness tolerance negative 0.006" 0.152 mm
Mill Finish Hot Rolled Finished in Oil Hot Rolled Finished in Oil
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 .25″ x .375″ 6.35 x 9.525 mm
Max part size 44″ x 30″ 1117.6 mm x 762 mm
Min hole size .030″ 0.762 mm
Min bridge size .032″ 0.813 mm
Min hole to edge distance .020 0.508 mm
Tab and slot tolerance .010" 0.254 mm
Bending Specifications INCH MM
Min Bend Part Size .375" x 1.5" 9.525 mm x 38.1 mm
Max bending flat part size 44″ x 30″ 1117.6 x 762 mm
Max Bend Length 44″ 1117.6 mm
Min Flange Length (Before Bend/Flat Pattern) 90° or less (obtuse) 0.255″ 6.477 mm
Min Flange Length (After Bend) 90° or less (obtuse) 0.303" 7.696 mm
Minimum Length Center of bend line 91-130* (Acute) 0.332" 8.433 mm
Die Width 0.472″ 11.989 mm
Effective Bend Radius @ 90° 0.050″ 1.27 mm
Max Bend Angle 130° 130°
Bend angle tolerance (bend length up to 24″) +/- 1 degree +/- 1 degree
Bend angle tolerance (bend length over 24″) +/- 2 degrees +/- 2 degrees
Bend Deduction @ 90° 0.1065 2.705 mm
K Factor 0.41 0.41
Bend Relief Depth 0.133″ 3.378 mm
Minimum Joggle Bend line to bend line @90° Max Flange 0.324" 8.23 mm
Maximum Joggle Bend line to bend line @90° Max Flange 3.750″ 95.25mm
Plating Specifications INCH MM
Min Plating Part Size 1″ x 3″ 25.4 mm x 76.2 mm
Max Plating Part Size 23″ x 23″ 584.2 mm x 584.2 mm
Powder Coating Specifications INCH MM
Min powder coating part size 1″ x 3″ 25.4 mm x 76.2 mm
Max powder coating part size 23″ x 23″ 584.2 mm x 584.2 mm
4130 Chromoly Steel .050" Properties INCH MM
Material Composition Chromium (Cr): 0.8 – 1.1 Manganese (Mn): 0.4 – 0.6 Carbon (C): 0.28 – 0.33 Silicon (Si): 0.15 – 0.35 Molybdenum (Mo): 0.15 – 0.25 Sulfur (S): 0 – 0.040 Phosphorus (P): 0 – 0.035 Chromium (Cr): 0.8 – 1.1 Manganese (Mn): 0.4 – 0.6 Carbon (C): 0.28 – 0.33 Silicon (Si): 0.15 – 0.35 Molybdenum (Mo): 0.15 – 0.25 Sulfur (S): 0 – 0.040 Phosphorus (P): 0 – 0.035
Density 490 lb/ft^3 490 lb/ft^3
Heat treatments process Annealed/spheroidized Annealed/spheroidized
ASTM A505/506 A505/506
Tensile Strength (Ultimate) 77-150 ksi 77-150 ksi
Tensile Strength (Yield) 63-140 ksi 63-140 ksi
Shear Strength 49-93 ksi 49-93 ksi
Shear Modulus 11000 ksi 11000 ksi
Fatigue Strength 47-93 ksi 47-93 ksi
Brinell Hardness 135-140 135-140
Elongation at Break 15% 15%
Elastic Modulus 27000 ksi 27000 ksi
Poisson’s Ratio 0.29 0.29
Thermal Conductivity 26.5 BTU/h-ft °F 26.5 BTU/h-ft °F
Melting Point 2599 °F 2599 °F
Magnetic Yes Yes
Does it Rust Yes Yes

.125" 4130 Chromoly Steel

4130 Chromoly Steel .125" General Details INCH MM
Advertised Thickness 0.125" 3.175 mm
Gauge N/A N/A
Thickness tolerance positive 0.009" 0.229 mm
Thickness tolerance negative 0.009" 0.229 mm
Mill Finish Hot Rolled Finished in Oil Hot Rolled Finished in Oil
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 .25″ x .375″ 6.35 x 9.525 mm
Max part size 44″ x 30″ 1117.6 mm x 762 mm
Min hole size .050″ 1.27 mm
Min bridge size .063″ 1.6 mm
Min hole to edge distance .038 0.965 mm
Tab and slot tolerance .015" 0.381 mm
Bending Specifications INCH MM
Min Bend Part Size .375" x 1.5" 9.525 mm x 38.1 mm
Max bending flat part size 44″ x 30″ 1117.6 x 762 mm
Max Bend Length 40″ 1016 mm
Min Flange Length (Before Bend/Flat Pattern) 90° or less (obtuse) 0.620″ 15.748 mm
Min Flange Length (After Bend) 90° or less (obtuse) 0.723" 18.364 mm
Minimum Length Center of bend line 91-130* (Acute) 0.806" 20.472 mm
Die Width 0.984″ 24.994 mm
Effective Bend Radius @ 90° 0.090″ 2.286 mm
Max Bend Angle 130° 130°
Bend angle tolerance (bend length up to 24″) +/- 1 degree +/- 1 degree
Bend angle tolerance (bend length over 24″) +/- 2 degrees +/- 2 degrees
Bend Deduction @ 90° 0.205″ 5.207 mm
K Factor 0.43 0.43
Bend Relief Depth 0.235″ 5.969 mm
Minimum Joggle Bend line to bend line @90° Max Flange 0.758" 19.253 mm
Maximum Joggle Bend line to bend line @90° Max Flange 3.750″ 95.25mm
Plating Specifications INCH MM
Min Plating Part Size 1″ x 3″ 25.4 mm x 76.2 mm
Max Plating Part Size 23″ x 23″ 584.2 mm x 584.2 mm
Powder Coating Specifications INCH MM
Min powder coating part size 0.5″ x 1.5″ 12.7 mm x 38.1 mm
Max powder coating part size 4″ x 7″ 101.6 mm x 177.8 mm
4130 Chromoly Steel .125" Properties INCH MM
Material Composition Chromium (Cr): 0.8 – 1.1 Manganese (Mn): 0.4 – 0.6 Carbon (C): 0.28 – 0.33 Silicon (Si): 0.15 – 0.35 Molybdenum (Mo): 0.15 – 0.25 Sulfur (S): 0 – 0.040 Phosphorus (P): 0 – 0.035 Chromium (Cr): 0.8 – 1.1 Manganese (Mn): 0.4 – 0.6 Carbon (C): 0.28 – 0.33 Silicon (Si): 0.15 – 0.35 Molybdenum (Mo): 0.15 – 0.25 Sulfur (S): 0 – 0.040 Phosphorus (P): 0 – 0.035
Density 490 lb/ft^3 490 lb/ft^3
Heat treatments process Annealed/spheroidized Annealed/spheroidized
ASTM A505/506 A505/506
Tensile Strength (Ultimate) 77-150 ksi 77-150 ksi
Tensile Strength (Yield) 63-140 ksi 63-140 ksi
Shear Strength 49-93 ksi 49-93 ksi
Shear Modulus 11000 ksi 11000 ksi
Fatigue Strength 47-93 ksi 47-93 ksi
Brinell Hardness 135-140 135-140
Elongation at Break 15% 15%
Elastic Modulus 27000 ksi 27000 ksi
Poisson’s Ratio 0.29 0.29
Thermal Conductivity 26.5 BTU/h-ft °F 26.5 BTU/h-ft °F
Melting Point 2599 °F 2599 °F
Magnetic Yes Yes
Does it Rust Yes Yes

.190" 4130 Chromoly Steel

4130 Chromoly Steel .190" General Details INCH MM
Advertised Thickness 0.190" 4.826 mm
Gauge N/A N/A
Thickness tolerance positive 0.009" 0.229 mm
Thickness tolerance negative 0.009" 0.229 mm
Mill Finish Hot Rolled Finished in Oil Hot Rolled Finished in Oil
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 .070″ 1.778 mm
Min bridge size .070″ 1.778 mm
Min hole to edge distance .057 1.448 mm
Tab and slot tolerance .015" 0.381 mm
Bending Specifications INCH MM
Min Bend Part Size .375" x 1.5" 9.525 mm x 38.1 mm
Max bending flat part size 44″ x 30″ 1117.6 x 762 mm
Max Bend Length 36″ 914.4 mm
Min Flange Length (Before Bend/Flat Pattern) 90° or less (obtuse) 0.620″ 15.748 mm
Min Flange Length (After Bend) 90° or less (obtuse) 0.782" 19.863 mm
Minimum Length Center of bend line 91-130* (Acute) N/A N/A
Die Width 0.984″ 24.994 mm
Effective Bend Radius @ 90° 0.125″ 3.175 mm
Max Bend Angle 90° 90°
Bend angle tolerance (bend length up to 24″) +/- 1 degree +/- 1 degree
Bend angle tolerance (bend length over 24″) +/- 2 degrees +/- 2 degrees
Bend Deduction @ 90° 0.324″ 8.23 mm
K Factor 0.37 0.37
Bend Relief Depth 0.335″ 8.509 mm
Minimum Joggle Bend line to bend line @90° Max Flange 0.829" 21.057 mm
Maximum Joggle Bend line to bend line @90° Max Flange 3.750″ 95.25mm
Plating Specifications INCH MM
Min Plating Part Size 1″ x 3″ 25.4 mm x 76.2 mm
Max Plating Part Size 23″ x 23″ 584.2 mm x 584.2 mm
Powder Coating Specifications INCH MM
Min powder coating part size 1″ x 3″ 25.4 mm x 76.2 mm
Max powder coating part size 23″ x 23″ 584.2 mm x 584.2 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
4130 Chromoly Steel .190" Properties INCH MM
Material Composition Chromium (Cr): 0.8 – 1.1 Manganese (Mn): 0.4 – 0.6 Carbon (C): 0.28 – 0.33 Silicon (Si): 0.15 – 0.35 Molybdenum (Mo): 0.15 – 0.25 Sulfur (S): 0 – 0.040 Phosphorus (P): 0 – 0.035 Chromium (Cr): 0.8 – 1.1 Manganese (Mn): 0.4 – 0.6 Carbon (C): 0.28 – 0.33 Silicon (Si): 0.15 – 0.35 Molybdenum (Mo): 0.15 – 0.25 Sulfur (S): 0 – 0.040 Phosphorus (P): 0 – 0.035
Density 490 lb/ft^3 490 lb/ft^3
Heat treatments process Annealed/spheroidized Annealed/spheroidized
ASTM A505/506 A505/506
Tensile Strength (Ultimate) 77-150 ksi 77-150 ksi
Tensile Strength (Yield) 63-140 ksi 63-140 ksi
Shear Strength 49-93 ksi 49-93 ksi
Shear Modulus 11000 ksi 11000 ksi
Fatigue Strength 47-93 ksi 47-93 ksi
Brinell Hardness 135-140 135-140
Elongation at Break 15% 15%
Elastic Modulus 27000 ksi 27000 ksi
Poisson’s Ratio 0.29 0.29
Thermal Conductivity 26.5 BTU/h-ft °F 26.5 BTU/h-ft °F
Melting Point 2599 °F 2599 °F
Magnetic Yes Yes
Does it Rust Yes Yes

.250" 4130 Chromoly Steel

4130 Chromoly Steel .250" General Details INCH MM
Advertised Thickness 0.250" 6.35 mm
Gauge N/A N/A
Thickness tolerance positive 0.030" 0.762 mm
Thickness tolerance negative 0.010" 0.554 mm
Mill Finish Hot Rolled Finished in Oil Hot Rolled Finished in Oil
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 .100″ 2.54 mm
Min bridge size .125″ 3.175 mm
Min hole to edge distance .075 1.905 mm
Tab and slot tolerance .035" 0.889 mm
Bending Specifications INCH MM
Min Bend Part Size .375" x 1.5" 9.525 mm x 38.1 mm
Max bending flat part size 44″ x 30″ 1117.6 x 762 mm
Max Bend Length 32″ 812.8 mm
Min Flange Length (Before Bend/Flat Pattern) 90° or less (obtuse) 1.150″ 29.21 mm
Min Flange Length (After Bend) 90° or less (obtuse) 1.367" 34.722 mm
Minimum Length Center of bend line 91-130* (Acute) N/A N/A
Die Width 1.575″ 40.005 mm
Effective Bend Radius @ 90° 0.170″ 4.318 mm
Max Bend Angle 90° 90°
Bend angle tolerance (bend length up to 24″) +/- 1 degree +/- 1 degree
Bend angle tolerance (bend length over 24″) +/- 2 degrees +/- 2 degrees
Bend Deduction @ 90° 0.434″ 11.024 mm
K Factor 0.36 0.36
Bend Relief Depth 0.440″ 11.176 mm
Minimum Joggle Bend line to bend line @90° Max Flange 1.425" 36.195 mm
Maximum Joggle Bend line to bend line @90° Max Flange 3.750″ 95.25mm
Plating Specifications INCH MM
Min Plating Part Size 1″ x 3″ 25.4 mm x 76.2 mm
Max Plating Part Size 23″ x 23″ 584.2 mm x 584.2 mm
Powder Coating Specifications INCH MM
Min powder coating part size 1″ x 3″ 25.4 mm x 76.2 mm
Max powder coating part size 23″ x 23″ 584.2 mm x 584.2 mm
Tumble Specifications INCH MM
Min Part Size Tumbling 0.5″ x 1.575″ 12.7 mm x 38.1 mm
Max Part Size Tumbling 4″ x 7″ 101.6 mm x 177.8 mm
4130 Chromoly Steel .050" Properties INCH MM
Material Composition Chromium (Cr): 0.8 – 1.1 Manganese (Mn): 0.4 – 0.6 Carbon (C): 0.28 – 0.33 Silicon (Si): 0.15 – 0.35 Molybdenum (Mo): 0.15 – 0.25 Sulfur (S): 0 – 0.040 Phosphorus (P): 0 – 0.035 Chromium (Cr): 0.8 – 1.1 Manganese (Mn): 0.4 – 0.6 Carbon (C): 0.28 – 0.33 Silicon (Si): 0.15 – 0.35 Molybdenum (Mo): 0.15 – 0.25 Sulfur (S): 0 – 0.040 Phosphorus (P): 0 – 0.035
Density 490 lb/ft^3 490 lb/ft^3
Heat treatments process Annealed/spheroidized Annealed/spheroidized
ASTM A505/506 A505/506
Tensile Strength (Ultimate) 77-150 ksi 77-150 ksi
Tensile Strength (Yield) 63-140 ksi 63-140 ksi
Shear Strength 49-93 ksi 49-93 ksi
Shear Modulus 11000 ksi 11000 ksi
Fatigue Strength 47-93 ksi 47-93 ksi
Brinell Hardness 135-140 135-140
Elongation at Break 15% 15%
Elastic Modulus 27000 ksi 27000 ksi
Poisson’s Ratio 0.29 0.29
Thermal Conductivity 26.5 BTU/h-ft °F 26.5 BTU/h-ft °F
Melting Point 2599 °F 2599 °F
Magnetic Yes Yes
Does it Rust Yes Yes
Frequently Asked Questions
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