Mil–A 12560 metal plate is a navy spec armor steel plate that is accredited by the fabric generation laboratory, branch of the military, for use in combat cars and for ammunition checking out. Thickness tiers from 3/sixteen" thru three" are to be used in combat automobiles and ¼" via 12" are to be used in evidence popularity checking out of armor defeating ammunition.
Reading the text: The wording is machine-paraphrased. “Material technology laboratory, department of the army” is the US Army Materials Technology Laboratory, “3/sixteen"” is 3/16 in and “evidence popularity testing” is proof acceptance testing. In metric, 3/16 in is 4.8 mm, 1/4 in is 6.4 mm, 3 in is 76 mm and 12 in is 305 mm.
Usually this grade of armor is used inside the safety of landmines or explosive structures. It absorbs shock thoroughly and consequently facilitates to preserve shrapnel to a minimal. Each plate is tested to a fraction simulated projectile trendy, which dictates the extent of safety for which the plate will in the long run be used.
Reading the text: “Fraction simulated projectile” is the fragment-simulating projectile (FSP) used in testing. The page describes protection of “landmines or explosive structures”, so state the mine-blast or fragment threat you need protection against.
In large part referred to as rolled homogenous armor, this variety is available in four exclusive classes. Common BHN readings on this cloth are 377 to 415 with other effect and bend checks being executed as well.
Rolled homogeneous armour: Rolled homogeneous armour (RHA) is plate with uniform composition and hardness through its thickness. The four classes in the specification differ in requirements; confirm the class on the certificate.
MIL A12560 Plates: Purchasing Specification
| Requirement | What to specify |
|---|---|
| Grade and specification | Armor 400 / 500, Armor 500T, HSC 500T, MIL-A-46100 or MIL-A-12560, as your specification names; say which specification and revision applies. |
| Protection level | State the threat or protection class and the ballistic test standard your project cites; thickness and hardness are chosen to meet it. |
| Dimensions | Thickness × width × length in mm or inches; number of plates or total weight. |
| Condition | Quenched plate, not intended for further heat treatment; do not heat it above the mill’s limit. |
| Cutting | Waterjet cutting is preferred because it keeps the properties of the cut edge; laser and plasma are also suitable. |
| Welding and forming | Austenitic consumables are recommended; cold bending needs generous radii and safety measures. |
| Documents | EN 10204 inspection certificate with chemistry and hardness; ballistic test reports where the specification requires them. |
How the Six Ballistic Steel Pages Differ
The six pages cover armour plate to different mill brands and military specifications. Armor and HSC grades are quenched steels of about 400 to 560 HBW sold by thickness and hardness; the MIL specifications set hardness and ballistic approval for military use. The pages differ in the grade they describe and the data they give.
| Page | What it covers | Typical use (from the pages) |
|---|---|---|
| ARMOUR | Armor 400 and 500: dimensions, tolerances, welding, bending and cutting, chemistry and typical mechanical properties | Doors, walls, bank counters and vaults, vehicles, secured containers |
| ARMOR 500T | 480–540 HBW plate, 3–80 mm, Charpy-V 32 J at −40 °C, with chemistry and tolerances | Vehicles and buildings, with combined penetration and blast protection |
| ARMOR 500 | 490–560 HBW plate and cut lengths, 2–30 mm, with thickness and flatness tolerances | Ballistic protection of high hardness |
| MIL A 46100 | Military high-hardness armour, 477–534 BHN, quenched and tempered | Stopping high-velocity projectiles, such as sniper fire |
| MIL A12560 (this page) | Rolled homogeneous armour in four classes, typical 377–415 BHN | Combat vehicles, ammunition proof testing, landmine protection |
| HSC 500T | 480–540 HBW plate, 3–80 mm, Charpy-V 32 J at −40 °C, with chemistry and thickness tolerances | Vehicles, buildings and other protection applications |
State the specification, protection level and test standard on your enquiry; armour grades are not interchangeable.
Related plates in this range
Applications for MIL A12560 Plates
Typical uses include doors, walls and window frames, bank counters and vaults, security vans, secured containers, shooting-gallery equipment and military vehicles. Tell us the load, temperature and service conditions so the right grade and thickness can be quoted.
Cutting, Fabrication and Welding
Champak Industries describes full and part plate/profile supply and a plasma-cutting service. Send drawings, quantities, tolerances and edge preparation for your parts. Plasma and laser cutting are suitable and waterjet is preferred, because it keeps the properties of the cut edge. Weld with austenitic consumables, avoid further heat treatment, and cold-bend only to the mill’s radius and safety guidance.
Testing, Inspection Documents and Traceability
| Requirement | What to identify in the order |
|---|---|
| Inspection certificate | EN 10204 showing grade, heat number, chemistry and hardness (the Armour Plates page mentions EN 10204-2.2) |
| Hardness | Brinell hardness range for the grade (HBW) |
| Impact test | Charpy-V temperature and energy, where the grade lists them |
| Ballistic test | Test standard, threat level and test report, if required by your specification |
| Traceability | Heat and plate number transferred to cut pieces |
See the company’s Quality Policy for its published policy.
Source MIL A12560 Plates from Champak Industries
Champak Industries’ company profile records its establishment in Mumbai in 1978 and its stockist, import and export activities. MIL A12560 Plates can be requested together with other plates in the Ballistic Steel Plates range.
What Determines the Quotation?
Grade and brand, thickness, plate size, quantity, cutting, testing and packing all affect the quotation. Say whether pricing is needed per kilogram, per plate or per finished piece.
Packing, Dispatch and Export Requirements
Give the delivery address, required date and unloading constraints. For export orders, include the destination port, delivery terms and document list.
MIL A12560 Plates: Frequently Asked Questions
01What is MIL A12560 Plates?
MIL-A-12560 is a US military specification for rolled homogeneous armour (RHA) in four classes, approved for combat vehicles in 3/16 in to 3 in thickness, with typical hardness of 377–415 BHN.
02What thicknesses does the page list?
3/16 in to 3 in for combat vehicles, and 1/4 in to 12 in for proof acceptance testing of armour-defeating ammunition.
03How many classes are there?
The page says the material is available in four classes; state the class you need on your enquiry.
04What is MIL-A-12560 used for?
Combat vehicles, ammunition testing and the protection of landmines or explosive structures, where it absorbs shock and keeps shrapnel to a minimum.
05Can MIL A12560 be welded?
Armour steels can be welded with common methods. Austenitic consumables are recommended, and ferritic consumables only after checking whether elevated working temperature is needed. Do not heat-treat the plate afterwards.
06Which certificate should I request?
An EN 10204 inspection certificate showing grade, heat number, chemistry and hardness, plus any ballistic test report that your specification requires.
07Can another armour grade replace MIL A12560?
Armour grades are not interchangeable: hardness, toughness, thickness range and approval differ, so confirm any substitution with the end user or the approving authority.
08How should MIL A12560 be cut?
Waterjet cutting is preferred because it keeps the properties of the cut edge; laser and plasma cutting are also suitable. Send drawings, quantities and tolerances with your enquiry.
09Which sizes are available?
Availability depends on the grade, mill and thickness; send the thickness, width and length you need and sizes will be confirmed at quotation.
10How do I get a price and delivery date?
Send the grade or specification, protection level, thickness, size or cutting drawing, quantity, destination and required date through the enquiry form below, by WhatsApp or by phone.