ROCKLABS Ltd - Standard Equipment /Heads Materials

Composition of Materials
All figures are presented in ppm, except where noted and are typical to maximum values.
Symbol	Element	Agate	Carbon Steel	Chrome Steel	Tungsten Carbide	Zirconia
Ag	Silver		0.3			<0.2
Al	Aluminium	Trace	300	300	30	70
As	Arsenic			<100	<10	<1
Au	Gold		<0.2			0.04
B	Boron				<10
Ba	Barium				<10	160
Br	Bromine					1
C	Carbon		0.48%	2%	5.50%
Ca	Calcium		40		50	150
Cl	Chlorine					<10
Co	Cobalt		30	200	10%	3
Cr	Chromium		1200	12%	50	<10
Cs	Cesium					<1
Cu	Copper		250	200	30	<10
Fe	Iron	Trace	98%	86%	100	70
Ga	Galkum					1
Hf	Hafnium					1.30%
In	Indium					0.01
K	Potassium	Trace			30	<20
La	Lanthanum					7
Mg	Magnesium					2%
Mn	Manganese	Trace	7000	3500	50	3
Mo	Molybdenum		100	100	50	<10
N	Nitrogen				100	40
Na	Sodium	Trace		<500	30
Nb	Niobium		2	50	100	<10
Ni	Nickel		200	800	50
P	Phosphorus		<100	140	30
Pb	Lead		5	<100	30	<10
Rb	Rubidium					<10
Re	Rhenium					<0.05
S	Sulphur		<350	100	50
Sb	Antimony		10		10	3
Sc	Scandium					1
Se	Selenium					<10
Si	Silicon		2500	4500	50	220
Sn	Tin		20	<100
Sr	Strontium		0.3			1000
Ta	Tantalum		0.4		30	<1
Th	Thorium		0.4			4
Ti	Titanium			<100	30	450
U	Uranium		<1			0.6
V	Vanadium		<100	200	30	0.1
W	Tungsten		7	200	84.50%	<2
Zn	Zinc		10	<100	30	<10
Zr	Zirconium		<1	<100	<10	70.30%

Rare earths	Element	Agate	Carbon Steel	Chrome Steel	Tungsten Carbide	Zirconia
Ce	Cerium					<10
Eu	Europium					0.5
Gd	Gadolinium					<0.5
Lu	Lutetium					0.3
Nd	Neodymium					<1
Sm	Samarium					<0.1
Tb	Terbium					<0.3
Y	Yttrium					0.1
Yb	Ytterbium					1

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