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The sulfur element (S element) comes from the ore and fuel coke of steelmaking. It is a harmful element in 5mm BP370 bulletproof etc. steel. Sulfur exists in steel in the form of iron sulfide (FeS). FeS and Fe form a low melting point (985℃) compound. The hot working temperature of steel is generally above 1150 - 1200℃, so when the steel is hot working, the premature melting of FeS compound causes the workpiece to crack, which is called "hot brittleness". It reduces ductility and toughness of steel and causes cracks during forging and rolling. Sulfur is also detrimental to welding performance and reduces corrosion resistance.
In actual processing applications, the processing 5mm BP370 bulletproof thickness of flame cutting ranges from 6 to 200 mm, and the 5mm BP370 bulletproof cutting thickness can even reach 350 mm by replacing the air pipe and cutting torch nozzle. In order to better improve the cutting quality, the related process parameters will be slightly different when using flame cutting for materials of different thickness. The verticality of the cutting surface processed by the CNC flame cutting machine is generally high, and the slope can be controlled below 2-3°. The characteristic is that flame cutting performs better when cutting 5mm BP370 bulletproof with a certain thickness above 10mm.
Seamless steel pipe refers to the steel pipe made of a whole piece of metal without joints on the surface. According to the production method, it can be divided into hot rolling tube, cold rolling tube, cold drawing tube, 5mm BP370 bulletproof, extrusion tube and spinning tube. According to the shape of the section, it can be divided into two types: circular and irregular. The seamless tube has a maximum diameter of 650 mm (expanding tube) and a minimum diameter of 0.3 mm (capillary tube), which can be divided into thick walled tube and thin walled tube according to the thickness.
Since its establishment, the company has participated in several key railway and highway projects. After years of development, the company’s 5mm BP370 bulletproof domestic market has been exported to more than a dozen provinces and cities including Kunming, Shenzhen, Hunan, Sichuan, Shanghai, Nanjing, Heihe, Jilin, Inner Mongolia, and Xinjiang . International trade is exported to Kazakhstan, South Korea, Vietnam, South Africa and many other countries, and has been well received by customers.
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Threat STANAG 4569 1 class (Infantry Rifles, 5.56/7.62 Ball) Artillery Simulator: 20mm FSP (simulating 155mm threat) at 520 m/sec from a distance of 100 meters (7,273J). Due to very low probability of a large fragment retaining enough velocity at these d
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This NIJ 0108 Ⅳ class standard is applicable to all ballistic resistant materials (armor) intended to provide protection against gunfire, with the exception of police body armor and ballistic helmets, which are the topic of individual NIJ performance stan
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This NIJ 0108 Ⅲ class standard is applicable to all ballistic resistant materials (armor) intended to provide protection against gunfire, with the exception of police body armor and ballistic helmets, which are the topic of individual NIJ performance stan
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EN 1063 standard applies to attack by handguns, rifles and shotguns and glazing in buildings for interior and exterior use: Handgun classes are EN 1063 BR2, EN 1063 BR3 and EN 1063 BR4, Rifle specifications are EN 1063 BR1, EN 1063 BR5, EN 1063 BR6 and EN
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EN 1063 BR6 class is a safety glass standard established by the European Commission to measure the protective strength of bulletproof glass. EN 1063 BR6 class is usually used in conjunction with EN 1522 (standard for the resistance of windows, doors, shut
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EN 1063, also known as CEN 1063, EN1063 BR5 class is a safety glass standard established by the European Commission to measure the protective strength of bulletproof glass. EN1063 BR5 class is usually used in conjunction with en 1522 (standard for the res
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Ramor 600 is an ultra-high hardness bulletproof steel, which can provide 3-6 mm (0.118-0.236 ") thick plates with a nominal hardness of 600 HBW. Ramor 600 is available in 3-6 mm (0.118-0.236 ") thick, delivered in quenched condition without further heat
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Ramor 550 steel is an ultra-high hardness bulletproof steel, which can provide 3-15 mm (0.118-0.591 ") thick plates with delivery hardness of 540-600 HBW. Ramor 550 steel is available in 3-6 mm (0.118-0.236 ") thick plates and 6-15 mm (0.236-0.591") th
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Ramor 500 is a high hardness bulletproof steel, which can provide plate thickness of 2-30 mm (0.079-1.18 ") and deliver hardness of 490-560 HBW. Ramor 500 is available in 2-6.5 mm (0.079-0.256 ") thick plates and 6-30 mm (0.236-1.18") thick plates. Ram
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Ramor 450 steel is a medium hardness bulletproof steel, which has both bulletproof function and impact toughness. Ramor 450 steel is available in 8-16 mm (0.315-0.630 ") thick plates with delivered hardness of 400-480 HBW. Ramor 450 steel does not requir
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The anti explosion steel Ramor 400 is an explosion-proof medium hardness steel, which can provide plate thickness of 2-30 mm (0.078-1.18 ") and the delivered hardness is 360-460 HBW. Ramor 400 can provide 2-12 mm (0.078-0.472 ") thickness fixed length s
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The Ramor 300 is a low alloy bulletproof steel plate that provides 3-6 mm (0.118-0.236") sheet with a hardness of 260-320 HBW. The Ramor 300 does not require further heat treatment. Ramor 300 size range: 3.0-6.0mm thickness of open cutting sheet.
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The EN1522 FB7 class/ BR7 window detailed on this page below is specifically tested to EN 1063 BR7 and EN1522 FB7 class, withstanding multiple impacts from a 7.62 x 51 calibre weapon, a Rifle (AP). As you can see from the table below there are many compar
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Our company manufacture EN 1522 FB5, EN1522 FB6 class and EN 1063 BR5 and BR6 Ballistic Windows to suit your specific requirements. Our Bullet Windows have been independently tested and certified within the UK to both EN1522 FB5 and EN1522 FB6 class with
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Since the end of 1998, the new Euro Standard EN1522 FB5 class has been applied Europe-wide and replaces all standards that have been valid in these countries so far. The EN1522 FB5 class applies to all bulletproof doors, windows, shutters, transfer trays
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Weldability of BP600 bulletproof steel plate: the carbon equivalent of BP600 bulletproof steel plate is between 0.50 and 0.62, which indicates that the steel has good weldability. The BP600 bulletproof steel plate heat input during welding is about 1.5-2.
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Weldability of BP500 bulletproof steel plate: the carbon equivalent of BP500 bulletproof steel plate is between 0.50 and 0.62, which indicates that the steel has good weldability. The BP500 bulletproof steel plate heat input during welding is about 1.5-2.
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The BP440 steel sheet can be heat treated. It has excellent gun resistance, strong impact resistance, uniform and stable performance, good shape and surface quality. This BP440 steel sheet is suitable for cash carriers, armored personnel carriers, escort
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BP370 steel plate is heat treated with hot rolled coil as base plate. BP370 steel has excellent gun resistance, strong destructive impact resistance, uniform and stable performance, good shape and surface quality.
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BP370 steel plate is heat treated with hot rolled coil as base plate. BP370 steel has excellent gun resistance, strong destructive impact resistance, uniform and stable performance, good shape and surface quality.
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