An Integrated Publishing, Inc. Site

An Integrated Publishing Website

MIL-DTL-12560 Armor Plate, Steel, Wrought, Homogeneous \(For Use In Combat-Vehicles And For Ammunition Testing\)This specification covers wrought-steel homogeneous armor plate for ordered thicknesses from 0.098 inch \(2.5 mm\) up to an ordered thickness of 6.000 inches \(152.4 mm\), inclusive, for use in combat-vehicles and for ordered thicknesses from 0.250 inches \(6.35 mm\) up to an ordered thickness of 12.000 inches \(304.8 mm\), inclusive, for use in proof and acceptance testing of armor defeating ammunition \(see 6.1, 6.2, and 6.3.3\).

Pages 1 - - 25 - 26 - 27 - 28 - 29 - 30 - 31 - 32 - 33 - 34 - 35 - 36 - 37 - 38 - 39 - 40 - 41 - 42 - 43|||

MIL-DTL-12560K (MR)

APPENDIX A

TABLE A-IV. Minimum required ballistic limits (protection criteria) for class 1, 3 and 4 armor and

the upper ballistic limits for class 3 armor; firing obliquity: 0�, projectile: 20 mm M602 API-T.

BL(P), ft/sec

Thickness,

CLASS

inches

1, 3 & 4

Min

Max

1.080

1909

2016

1.400

2265

2403

1.730

2586

2748

1.090

1921

2029

1.410

2275

2414

1.740

2595

2758

1.100

1933

2042

1.420

2285

2425

1.750

2604

2768

1.110

1945

2055

1.430

2295

2436

1.760

2613

2778

1.120

1957

2068

1.440

2305

2447

1.770

2613

2787

1.126 1/

1964

2076

1.450

2315

2458

1.780

2621

2797

1.130

1969

2081

1.460

2325

2469

1.790

2630

2807

1.140

1981

2094

1.470

2335

2480

1.800

2639

2816

1.150

1993

2106

1.480

2344

2491

1.810

2647

2826

1.160

2004

2119

1.490

2354

2501

1.820

2656

2836

1.170

2016

2131

1.500

2364

2512

1.830

2664

2845

1.180

2027

2144

1.510

2374

2523

1.840

2673

2855

1.190

2039

2156

1.520

2383

2534

1.850

2681

2864

1.200

2050

2169

1.530

2393

2544

1.860

2690

2874

1.210

2061

2181

1.540

2403

2555

1.870

2698

2883

1.220

2073

2193

1.550

2412

2565

1.880

2707

2892

1.230

2084

2205

1.560

2422

2576

1.890

2715

2902

1.240

2095

2217

1.570

2431

2586

1.900

2723

2911

1.250

2106

2229

1.580

2440

2597

1.910

2732

2921

1.260

2117

2241

1.590

2450

2607

1.920

2740

2930

1.270

2128

2253

1.600

2459

2617

1.930

2748

2939

1.280

2139

2265

1.610

2468

2628

1.940

2757

2948

1.290

2149

2277

1.620

2478

2638

1.950

2765

2958

1.300

2160

2289

1.630

2487

2648

1.960

2773

2967

1.310

2171

2300

1.640

2496

2658

1.970

2781

2976

1.320

2181

2312

1.650

2505

2668

1.980

2789

2985

1.330

2192

2323

1.660

2514

2678

1.990

2798

2994

1.340

2203

2335

1.670

2524

2689

2.000

2806

3003

1.350

2213

2346

1.680

2533

2699

2.010

2814

3012

1.360

2223

2358

1.690

2542

2709

2.020

2822

3021

1.370

2234

2369

1.700

2551

2719

2.030

2830

3030

1.380

2244

2380

1.710

2560

2728

2.040

2838

3039

1.390

2254

2392

1.720

2568

2738

2.050

2846

3048

Specification requirements begin for this ordered thickness.

Note: Tabulated values on either side of the specification requirements are for interpolation

of BL(P) requirements on undersize or oversize plates.