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500 (MIL-A-46100)

500 is a specially processed plate product that meets all the requirements of the MIL-DTL-46100 specification
WeldabilityCarbon equivalent of 0.69 Typical
Mechanical Properties (ASTM A370)
  • Hardness (per ASTM E10)
  • Yield Strength (Typical)
  • Tensile Strength (Typical)
  • Elongation 2" (Typical) 477-534 BHN
  • 215 Ksi
  • 240 Ksi
  • 8% (50.8mm gage)
  • 50-54 Rc (for reference)
  • 1480 MPa
  • 1655 MPa
Charpy V-Notch Impact
(ASTM 23)
Standard size, -40F test temp, hardness
Specimen Orientation Impact Resistance (ft/lbs)
Standard Width ½ Width
Transverse (T-L)12.06.0
Longitudinal (L-T)14.07.0
The complete requirements are shown in Mil-46100E Table 2
Bend Test
Plate Thickness Inside Radius
0.118-0.3125 in. (3-8mm) 4T
0.3126-0.500 in. (8.1-12.7mm) 6T
0.50-0.750 in (12.8-19mm) 8T
0.751-1.000 in (19.1-25.4mm) 10T
FlatnessRequirements are specified in ASTM-A-6. Tighter flatness tolerances are available on request.
ThicknessRequirements are specified in MIL-DTL-46100E Table 4. Special tolerances are available (subject to SWC approval).
Ballistic TestingTesting is always performed at the US Army Aberdeen testing facility or a US Government approved test facility. Specific requirements are listed in Appendix A of Military Specifications 46100E.
Availability500 is available in thicknesses of 2.5mm – 50mm / .098" - 2". Standard widths are 48", 60", 72" / 1220mm, 1524mm, 1829mm. Custom widths are available up to a maximum of 98" / 2500mm dependent upon material thickness.

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