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385 (MIL-A-12560J)

385 meets and exceeds the requirements specified in MIL-A-12560 J (appendix A Class 1).
WeldabilityCarbon equivalent of 0.72 Typical
Mechanical Properties (ASTM A370)
  • Hardness
  • Yield Strength (Typical)
  • Tensile Strength (Typical)
  • Elongation 2" (Typical)
  • 363-400 BHN
  • 172 Ksi
  • 191 Ksi
  • 10% (in 2") (ATSM E10)
  • 1187 MPa
  • 1318 MPa
  • 10% (in 50mm)
Charpy V-Notch Impact (ASTM A673) BEND TESTStandard size, 17 foot-pounds (23 joules) @ -40 deg C/F test temp, transverse direction hardness 363 BHN. (note the complete requirements are in MIL-A-12560J Table V) 4T (up to .50 inches-12.5mm)
FlatnessRequirements are 50% of that specified in ASTM A-6. Tighter flatness tolerances are available (subject to SWC approval).
ThicknessThe requirements are 50% of that specified in ASTM A-6. Special tolerances are available (subject to SWC approval).
Ballistic TestingThe requirements of 385 meet and exceed the requirements specified in MIL-A-12560 J (appendix A Class 1). 385 has been qualified at Aberdeen (US Army Proving Ground). Production lot qualification is performed at an approved test facility.
Availability385 is available in standard widths of 48", 60" and 72" with a maximum availability of 96". Inquire for width/thickness availability.

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