What is hot armour protection steel？
- September 11, 2024
- 9:54 pm
- 38
Hot armour protective steel is a special type of steel with excellent protective properties and is widely used in military, aerospace and engineering applications. In this article, we will introduce the types and main characteristics of hot armour protective steels, as well as their applications in different fields.
Thermal armour protective steel is a kind of steel with high hardness, high strength and excellent impact and penetration resistance. It can effectively resist impact and penetration and provide reliable protection for armoured vehicles, warships and aircraft.
Types
1. Corundum-ceramic composite armour steel: this type of steel has an extremely hard corundum-ceramic layer and high-strength steel sheets. It can effectively resist the impact of armour-piercing bullets and explosive fragments, and is widely used for the protection of tanks, armoured vehicles and other military equipment.
2. High-strength low alloy steel: this steel is able to resist sudden attack situations while maintaining high strength.
3. High boron alloy steel: This steel incorporates a high content of boron, which increases its hardness and wear resistance significantly. It is commonly used in the manufacture of protective plates for construction machinery such as excavators and loaders, and is able to withstand the impact and abrasion of hard materials.
Characteristic
1. High hardness: Thermal armour protection steel is extremely hard and provides reliable protection.
2. High strength: this steel has excellent strength and is able to withstand high levels of stress and external forces, maintaining structural integrity.
3. good toughness: despite its high hardness, thermal armour protection steel is also relatively tough, absorbing energy and reducing damage under impact.
Hot armour protective steel has a wide range of applications in different fields. In the military sector, it is used to make protective structures for military equipment such as tanks, armoured vehicles and warships to protect the occupants from enemy attacks. In the aerospace sector, hot armoured protective steels are used to manufacture ballistic and fender panels for aircraft, providing a safe flying environment. In the engineering field, it is used in protective plates for excavators, loaders and other construction machinery to protect mechanical equipment from wear and tear and damage.
bulletproof steel sheets Introduction
Bulletproof steel sheets are generally used in bulletproof protection and explosion-proof projects, such as range equipment, bulletproof doors, bulletproof helmets, bulletproof vests, bulletproof shields; bank counters, key safes; riot control vehicles, bulletproof money carriers, armoured personnel carriers, combat vehicles, submarines, landing craft, anti-smuggling boats, helicopters and so on.
Types of bulletproof steel sheets
- Bulletproof steel sheets: 26SiMnMo (Gy5), 28CrMo (Gy4), 22SiMn2TiB (616).
- Aviation bulletproof steel sheets: 32CrNi2MoTiA (A-8), 32Mn2Si2MoA (F-3)
- Artillery bulletproof steel sheets: 32Mn2SiA(F-2), 22SiMn2TiB(616)
- Bulletproof steel sheets for tank armour plate: 32Mn2SiA deck bulletproof steel sheets for tank armour plate bulletproof steel sheets for tank armour, bulletproof steel sheets for tank armour, ultra-high-strength steel welded heat-affected zone resistance to CI ~ – corrosion performance.
- Bulletproof steel sheets: FD16, FD53, FD54, FD56, FD79, FD95, B900FD Dengwei Special Steel deals in high strength bulletproof steel.
- Domestic: NP550 bulletproof steel sheets
- Armoured steel 617 steel number belongs to armoured bulletproof steel series, material: 30CrNi2MnMoRE
- Armour bulletproof steel 675 steel number, material: 30CrNi3MoV; the implementation of GJB/31A-2000 standard. This standard contains armoured bulletproof steel steel number: 603 (30CrMnMoRE), 617 (30CrNi2MnMoRE), 675 (30CrNi3MoV) and other armoured bulletproof steel.
Sweden imported armour bulletproof steel: PRO500
PRO500 armour steel sheets four features:
1. Alloy composition carefully designed: low-alloy micro-alloying to maximise performance and have the best process performance.
2. Refined raw materials: repeated refining in and out of the furnace; harmful gases and impurities fried to a minimum; can be welded, can be cold-formed.
3. Precise hot rolled plate type: minimum thickness tolerance; highest bidirectional flatness.
4. Self-controlled spray quenching: fine microstructure, uniform hardness distribution.
PRO500 armour steel sheets application standard and supply specifications
1.Thickness: 2.5mm-20mm, Width: 1000mm-1500mm, Length: 2000mm-6000mm.
2.PRO500 bulletproof steel sheets application standards: GJ-07-IIA
- Target thickness mm: 2.5, applicable: Type 54 pistol. Bullet velocity m/s: 440, Application standard: CN (Grade A).
- Target thickness mm: 2.5, applicable: Type 79 miniature submachine gun, steel-core bullet. Velocity of bullet m/s: 500. Applicable standards: CN (B grade), EN (B3, B4), USA: IIA, IIIA.
- Target thickness mm: 4.2, applicable: Type 56 submachine gun, AK47 (7.62×39). Bullet velocity m/s: 720. Applicable standard: CN (Grade C).
- Target thickness mm: 6.5, applicable: M165.56×45, (SS109). Bullet velocity m/s: 960. Applicable standards: EN (B6), USA (III).
- Target thickness mm: 6.5, applicable: NATO7.62×51, SC. bullet speed m/s: 820. applicable standards: EN:B6, USA(III).
- Target thickness mm: 12.5, applicable: Type 56 Armour Piercing Ammunition 7.62x39API. speed of bullet m/s: 720. applicable standard: STANAG4569II.
- Target thickness mm: 14.5, applicable: NATO 7.62x51APHC. bullet speed m/s: 820. applicable standard: EN1063B7.
Application of PRO500 armoured bulletproof steel sheets
PRO500 sheets are mainly used in the manufacture of bulletproof doors, bulletproof helmets, bulletproof vests, bulletproof shields, bank counters, key safes, riot control vehicles, bulletproof money carriers, armoured personnel carriers, combat vehicles, submarines, landing craft, anti-smuggling boats, helicopters and so on.
Manufacturing process of PRO500 armoured ballistic steel sheets
1.welding performance: PRO500 steel carbon equivalent between 0.50-0.62, indicating that this steel has good welding performance. Welding heat input of about 1.5-2.5KJ/mm. domestic welding materials can also be used to obtain high-quality welded parts.
2. cold bending: follow the points below to avoid cracks in cold bending, please call us for advice.
3. the relationship between the inner radius of the bend and the thickness of the steel plate: steel plate thickness mm: <6, bending angle <90 °, indenter radius R / plate thickness t, R / t: 4.0, pivot point spacing w / plate thickness t, W / t: 10.0; steel plate thickness mm: ≥ 6 <20. bending angle <90 °, indenter radius R / plate thickness t, R / t: 8.0, pivot point spacing w / plate thickness t, W / t: 12.0. W/t: 12.0.
armour bulletproof steel 675
Steel number material 30CrNi3MoV, the implementation of GJB/31A-2000 standard, 675 armoured bulletproof steel sheets This standard specifies the material 30CrNi3MoV composition, performance, use and thickness range is: 45mm ~ 80mm.
675 armour bulletproof steel smelting: steel should be used in electric arc furnace plus VHD or its equivalent outside the furnace vacuum refining. After consultation between the supply and demand sides, and note in the contract, can also be used to ensure that the requirements of this specification of other methods of smelting.
675 armour bulletproof steel characteristics and scope of application: 675 armour bulletproof steel is developed on the basis of the original Cr-Ni-Mo system of low-alloy ultra-high-strength steel with V micro-alloying and appropriate adjustment of the content of other alloying elements. 30CrNi3MoV high-strength steel is a special difficult-to-machine material for a certain type of weapon, and the milling performance of 30CrNi3MoV steel is poor. 30CrNi3MoV high-strength steel is China’s newly developed and put into use new varieties of high-strength steel, mainly as a structural material used for a major weapon model of key components.
675 armour bulletproof steel mechanical properties: hardness HRC40~42, tensile strength of 1280MPa.
675 armour bulletproof steel chemical composition: carbon C: 0.26 ~ 0.32, silicon Si: 0.15 ~ 0.35, manganese Mn: 0.30 ~ 0.50, phosphorus P: ≤ 0.015, sulfur S: ≤ 0.010, chromium Cr: 0.60 ~ 1.00, nickel Ni: 2.80 ~ 3.20, molybdenum Mo: 0.40 ~ 0.50, vanadium V: 0.06 ~ 0.013.
675 armoured bulletproof steel delivery state: sheets to high temperature tempering state delivery.
armour bulletproof steel 685
Steel number 30MnCrNiMo, the material is a medium-carbon high-strength low-alloy steel. 685 armoured bulletproof steel implementation of the GJB1998-84 standard; this standard specifies the material composition, performance, use, smelting process, and the thickness of the range of 4mm-30mm (more than non-standard).
GH3030, also known as Alloy 800, is a nickel-chromium alloy primarily used for its high temperature resistance and stability. This alloy is characterized by its strength and resistance to oxidation and carburization at elevated temperatures. It is commonly used in applications like heat exchangers, furnace components, and chemical processing equipment due to its excellent thermal properties.
Nitronic alloys are austenitic stainless steels that exhibit high strength and superior corrosion resistance. Key properties include:
- Excellent mechanical strength and toughness even at cryogenic temperatures.
- High wear resistance due to nitrogen strengthening, making them suitable for severe service conditions.
- Good corrosion resistance in a variety of environments, surpassing many conventional stainless steels.
- Resistance to galling and fretting, which makes them ideal for high-friction applications like fasteners and valve stems.
1.4108 is a high-carbon martensitic stainless steel known for its hardness and wear resistance. It’s particularly used for applications requiring high hardness such as cutting tools and bearings. The properties of 1.4108 include:
- High hardness and wear resistance, which can be enhanced further through heat treatment.
- Moderate corrosion resistance, though not as high as austenitic or ferritic stainless steels.
- Good toughness when tempered properly.
Inconel and Nitronic are both high-performance alloys but serve different purposes:
- Inconel is a family of nickel-based superalloys known for their ability to withstand extreme temperatures, corrosion, and pressure. They are typically used in high-temperature applications such as jet engines and chemical processing equipment.
- Nitronic stainless steels are nitrogen-strengthened austenitic stainless steels known for their strength, wear resistance, and good corrosion resistance. They are more commonly used in applications where high strength and corrosion resistance are required at moderate temperatures, like marine hardware and pump shafts.
Yes, Nitronic is a type of stainless steel. It belongs to the group of austenitic stainless steels that have been enhanced with nitrogen to increase yield strength and corrosion resistance without significantly reducing the elongation or toughness of the material.
Nitronic 40 and Nitronic 60 are both types of Nitronic stainless steel but differ primarily in their strength and corrosion resistance:
- Nitronic 40 (also known as Alloy 21-6-9) offers excellent oxidation resistance, high strength, and good corrosion resistance. It is often used in aircraft applications and as welded components.
- Nitronic 60 is known for its excellent galling and wear resistance, superior to that of most other stainless steels including Nitronic 50 and 40. It is often used in applications requiring high wear resistance like automotive valves, fasteners, and marine shafts.
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