Lead Bricks For Radiation Shielding
Absolute protection: ≥99.99% high-purity lead pressing, density 11.34g/cm³, lead equivalent 0.5-10mmPb can be stacked and customized, 150kVp ray attenuation rate ＞99.97% (measured GBZ 130 standard).
Engineering adaptation: Modular design (200×100×50mm standard brick), bite tolerance ±0.2mm, support seamless assembly of curved walls/pits, compressive strength ≥25MPa.
Long-term economy: Weather resistance -40℃~80℃, life span ＞30 years (annual attenuation <0.1%); recovery residual value rate ＞90%, saving 60% space and 40% comprehensive cost compared to concrete shielding.
Emergency replacement: 5 minutes to quickly build a temporary protection area (such as CT room renovation/nuclear emergency), compatible with boron polyethylene interlayer neutron radiation protection (cadmium ratio ≥4)
Lead bricks for radiation shielding Product Description
Lead bricks are made of high-purity electrolytic lead (≥99.9%) and are formed by melting, pressing or pouring. They are ultra-high-density functional materials designed for radiation protection, industrial counterweights and sound insulation engineering.
Core performance advantages
1. Excellent radiation shielding
The lead density reaches 11.34 g/cm³, and it has a strong attenuation ability for gamma rays and X-rays. Actual measurements show that 100mm thick lead bricks can effectively block more than 90% of 100kV X-rays, and the unit volume protection efficiency is more than 3 times that of concrete, which greatly saves the construction cost of the protective space.
2. Long-lasting, stable and durable
It has excellent acid and alkali corrosion resistance and radiation aging resistance, and its service life exceeds 30 years under normal conditions. The surface can be galvanized or epoxy coated to enhance the adaptability to complex working conditions such as humidity and high temperature.
3. Modular and flexible construction
The standard specifications are 200×100×50mm and 100×100×50mm (the dimensional tolerance is controlled within ±1mm), and the edge design has a bite structure to support seamless stacking into walls. A single standard brick weighs about 11.3kg, taking into account both protective performance and manual handling convenience.
Key technical parameters
The material purity is stably maintained at ≥99.9%, the measured density is 11.34±0.05 g/cm³, and the compressive strength is higher than 25MPa. The product has no performance degradation in the temperature range of -50℃ to +80℃, and customized products can achieve ±0.5mm precision control, and the surface roughness Ra≤3.2μm ensures no oxidation slag inclusions.
Main application areas
Radiation protection: walls and protective doors of nuclear power plant control rooms, hospital CT/PET scanning rooms, and radiotherapy centers
Industrial safety: X-ray flaw detection rooms, radioactive laboratory shielding structures
Precision counterweights: ship ballast systems, precision instrument bases, elevator balance counterweights
Acoustic control: professional recording studio acoustic barriers, heavy machinery shock-absorbing bases
Compliance and safety
Strictly follow the Chinese national standard GB/T 1470-2021 and the international ASTM B29 standard. Wear protective gloves during use to avoid direct skin contact, and keep the storage environment dry and ventilated to prevent white lead salt deposition on the surface.
Customized service
Supports customization of non-standard curved bricks, trapezoidal bricks and other special-shaped parts, and provides full-process services such as radiation shielding lead equivalent calculation, protection engineering structure design and installation technical guidance.
Lead bricks, with their irreplaceable physical shielding performance and structural stability, continue to build a safety foundation for the nuclear industry, medical health and high-end manufacturing.
