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Lead Alloys
At Gravita, we offer a diverse range of lead alloys, such as lead-tin, lead-antimony, lead-antimony-selenium, lead-tin-calcium, lead-tin-antimony, lead-arsenic, lead-cadmium-silver, and lead-cadmium-tin-antimony alloy.
Our meticulous production process ensures uniform alloying element distribution, resulting in lead alloys with superior properties.
With controlled processes and stringent quality systems, we guarantee low impurities in our lead alloys. Our products serve the lead-acid battery and power cable industries, offering a distinctive advantage in critical applications and ensuring equipment longevity.
For power cable sheathing, we produce alloy E, alloy E/2, and alloy C/2, providing complete insulation protection and electrical performance.
Our state-of-the-art alloying kettles, ranging from 7 to 30 tonnes, ensure optimal alloying with high-efficiency furnace oil burners and preheating arrangements.
Within Specified Limits: -
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Calcium Lead Alloy |
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Elements |
(%) Limits |
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Calcium (Ca) |
0.120 +/- 0.020 |
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Aluminium (Al) |
0.030 +/- 0.010 |
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Tin (Sn) |
0.400 +/- 0.100 |
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Other Impurities |
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Applications: For making Automotive/Tubular/SMF/VRLA battery plates. |
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Antimony Selenium Lead Alloy – 2.5 |
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Elements |
(%) Limits |
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Antimony (Sb) |
2.500 +/- 0.250 |
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Arsenic (As) |
0.150 +/- 0.050 |
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Tin (Sn) |
0.250 +/- 0.050 |
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Selenium (Se) |
0.020 +/- 0.005 |
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Other Impurities |
Within Specified Limits |
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Applications: For making Automotive / Tubular grids. |
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Antimony Lead Alloy – 3.0 |
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Elements |
(%) Limits |
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Antimony (Sb) |
3.000 +/ – 0.250 |
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Arsenic (As) |
0.125 +/ – 0.025 |
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Tin (Sn) |
0.250 +/ – 0.050 |
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Sulphur (S) |
0.003 – 0.008 |
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Copper (Cu) |
0.040 – 0.060 |
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Other Impurities |
Within Specified Limits |
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Applications: For making small parts in HD batteries, also in COS Fusion |
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Antimony Lead Alloy – 4.5 |
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Elements |
(%) Limits |
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Antimony (Sb) |
4.500 +/ – 0.250 |
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Arsenic (As) |
0.150 +/ – 0.025 |
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Tin (Sn) |
0.250 +/ – 0.050 |
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Sulphur (S) |
0.003 – 0.008 |
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Copper (Cu) |
0.040 – 0.060 |
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Other Impurities |
Within Specified Limits |
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Applications: For making automotive / Tubular Grids |
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Copper Lead Alloy |
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Elements |
(%) Limits |
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Copper (Cu) |
0.070 – 0.080 |
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Antimony (Sb) |
0.001 |
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Arsenic (As) |
0.001 |
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Tin (Sn) |
0.001 |
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Bismath (Bi) |
0.030 |
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Iron (Fe) |
0.001 |
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Zinc (Zn) |
0.001 |
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Silver (Ag) |
0.005 |
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Other Impurities |
Within Specified Limits |
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Applications: For making Lead Pipes / Chemical reactors |
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Tin Lead Alloy |
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Elements |
(%) Limits |
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Antimony (Sb) |
0.005 |
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Arsenic (As) |
0.001 |
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Bismath (Bi) |
0.030 |
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Iron (Fe) |
0.001 |
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Copper (Cu) |
0.005 |
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Tin (Sn) |
20 – 80 (As per requirement) |
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Other Impurities |
Within Specified Limits |
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Applications: For making Solder Alloy |
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Lead Alloy E & E ½
Gravita is the world's top manufacturer and supplier of lead E alloy and lead E ½ alloy, meeting PB021K & PB023K specifications. Our high-quality alloys are used by power cable manufacturers worldwide for cable sheathing and offer exceptional mechanical properties for extended service life.
½Quality Assurance
At Gravita, we prioritise quality at every stage of the manufacturing process, ensuring that our modern plant delivers products of exceptional value to our customers.
Applications
Our E & E ½ lead alloys are extensively used in electrical cable sheathing and sleeves.
Click here to download the product specifications
Typical Chemical Composition:
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Material Number |
Lead E Alloy & E ½ Elements |
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Ag |
As |
Bi |
Cd |
Cu |
Ni |
Sb |
Sn |
Te |
Zn |
Pb |
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PB021K |
0.005 |
0.001 |
0.03 |
0.001 |
0.003 |
0.001 |
0.15 – 0.25 |
0.35- 0.45 |
0.002 |
0.0005 |
Rem |
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PB023K |
0.005 |
0.001 |
0.03 |
0.001 |
0.003 |
0.001 |
0.08-0.12 |
0.17-0.23 |
0.002 |
0.0005 |
Rem |
Lead Alloy C Half
Gravita is proud to produce and supply lead alloy C Half ½, meeting the international specification of PB012K. Our high-quality premium alloys are supplied to power cable manufacturers for cable sheathing applications, and have gained global recognition, including approval from the Power Grid Corporation of India.
Quality Assurance
At Gravita, we prioritise quality at every stage of the manufacturing process, ensuring that our modern plant delivers products of exceptional quality.
TYPICAL CHEMICAL COMPOSITION
Chemical composition % of grade PB012K ( 012K)
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Ni |
Cu |
As |
Zn |
Ag |
Sb |
Bi |
Sn |
Te |
Cd |
– |
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max 0.0005 |
Max |
Max |
max 0.0005 |
max 0.0025 |
Max |
Max |
0.17 – 0.23 |
Max |
0.06 – 0.09 |
Pb – remainder |
