Lead Sheets

  • LEAD SHEETS
SAFETY DATA SHEET

Lead Sheet Thickness Chart

Actual thickness Weight Approximate thickness
Pounds / Square Foot Pounds / Square Foot Inches (Decimal) Inches (fraction) milimeters
2# 2 0.0312 " 1/32 0.0937
3# 3 0.0469 " 3/64 1.1906
4# 4 0.0625 " 1/16 1.5875
6# 6 0.1250 " 3/32 2.3812
8# 8 0.1250 " 1/8 3.175
10# 10 0.1562 " 5/32 3.9687
12# 12 0.1875 " 3/16 4.7626
16# 16 0.2500 " 1/4 6.35

Other sizes are available upon request.
Standard Thickness plus or minus 0.0050"
Standard Sizes plus or minus 0.1200".

Lead Shielding

Lead is used in all structures that require a shielding effect to protect against gamma and X-rays (doors, walls, and ceilings). This is one of the applications in wich lead achieves the best value for money.

To be taken into account:

  1. Energy: power emission of X-ray unit.
  2. Workload: how many exposures to radiation are produced per week, month or year?
  3. Orientation: direction of the main objective of the radioactive beam, and the scattering of the X-ray unit.
  4. Distance between the screen and the source of radiation.
  5. Occupation of adjoining rooms
  6. Other materials used in the construction of the room.

Recommended lead sheet thickness for X-Ray rooms

X- Rays generated by peak Minimun thickness of lead: Weight per square
voltages not exceeding Milimeters Inches foot in pounds
75 kv 1 0.039 21/2
100 kv 1.5 0.059 4
125 kv 2 0.079 5
150 kv 2.5 0.093 7
175 kv 3 0.118 8
200 kv 4 0.157 10
225 kv 2 0.197 13
300 kv 9 0.354 24
400 kv 15 0.591 38
600 kv 34 1.343 81
900 kv 51 2 120


Lead sheets manufactured by Industrias Deriplom S.A. meet

Federal Specification QQ-L- 201f – grado c and ASTM B749

Chemical Composition
Element(4) GRADE B
Percent maximum 		GRADE C
Percent maximum 		GRADE D
Percent maximum
Lead 99,500 (1) 99,900 (1) 99,850 (1)
Antimonic Tin & Arsenic (Total)   2 2
Iron   2 2
Bismuth -2 25 25
Zinc   "0,001
0,040 hasta
0,080 (2)"		 "0,040 hasta
0,080 (3)"
80
Copper   80 20
Silver   20 "0,035 hasta
Telurium     0,060 (3)"

(1) Minimum by difference.
(2) When specified, the bismuth content of grade B shall be 0.025 percent maximum.
(3) Range.
(4) For grades C and D, no element other than those specified shall exceed 0.001 percent maximum as determined by a normal spectrographic analysis.

ASTM B749

Especificaciones estándares para plomo y sus derivados (Varillas, Láminas y Platos de plomo)

Chemical Analysis
Tipo Elemento L50042
Plomo corroido (B)		 L50049
Plomo común (B)		 L51120
Plomo químico (B)		 L51121
Plomo con cobre (B)		 L51123
Plomo teluro (B)
Plata, max. 15 50 200 200 200
Plata, min.     20    
Cobre, max. 15 15 800 800 800
Cobre, Min.     400 400 400
"Plata y Cobre
juntos, max."		 25        
"Arsenico, Antimonio,
y Estaño
juntos, max"		 20 20 20 20 20
Zinc, max. 10 10 10 10 10
Hierro, max. 20 20 20 20 20
Bismuto, max. 500 0,0500 (C) 50 250 250
"Plomo
(por diferencia), min."		 999,400 999,400 999,000 999,000 "0,025 -
0,060Te"

(A) Lo siguiente se aplica a todos los límites especificados en esta tabla: con el fin de determinar la conformidad con esta especificación, el valor observado obtenido del análisis será redondeado a “la unidad más cercana” en el último lugar derecho de la cifra usada para expresar el valor límite, respetando el método de redondeo de las “Prácticas Recomendadas e 29”.
(B) Por mutuo acuerdo entre el comprador y el proveedor, se pueden requerir análisis y limites establecidos para elementos y compuestos no especificados en la tabla 1.
(C) Por mutuo acuerdo entre el comprador y el proveedor, se pueden aceptar niveles de bismuto de hasta 0,150%.

Packing

Lead sheets are available in rolls and may be shipped flat if required.