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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.

Lead Alloys

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: -

Calcium Lead Alloy

Elements

(%) Limits

caleium-lead-alloy

Calcium (Ca)

0.120 +/- 0.020

Aluminium (Al)

0.030 +/- 0.010

Tin (Sn)

0.400 +/- 0.100

Other Impurities

 

Applications: For making Automotive/Tubular/SMF/VRLA battery plates.

Antimony Selenium Lead Alloy – 2.5

Elements

(%) Limits

antimony-selenium-lead

Antimony (Sb)

2.500 +/- 0.250

Arsenic (As)

0.150 +/- 0.050

Tin (Sn)

0.250 +/- 0.050

Selenium (Se)

0.020 +/- 0.005

Other Impurities

Within Specified Limits

Applications: For making Automotive / Tubular grids.

Antimony Lead Alloy – 3.0

Elements

(%) Limits

Antimony (Sb)

3.000 +/ – 0.250

Arsenic (As)

0.125 +/ – 0.025

Tin (Sn)

0.250 +/ – 0.050

Sulphur (S)

0.003 – 0.008

Copper (Cu)

0.040 – 0.060

Other Impurities

Within Specified Limits

Applications: For making small parts in HD batteries, also in COS Fusion

Antimony Lead Alloy – 4.5

Elements

(%) Limits

Antimony (Sb)

4.500 +/ – 0.250

Arsenic (As)

0.150 +/ – 0.025

Tin (Sn)

0.250 +/ – 0.050

Sulphur (S)

0.003 – 0.008

Copper (Cu)

0.040 – 0.060

Other Impurities

Within Specified Limits

Applications: For making automotive / Tubular Grids

Copper Lead Alloy

Elements

(%) Limits

Copper (Cu)

0.070 – 0.080

Antimony (Sb)

0.001

Arsenic (As)

0.001

Tin (Sn)

0.001

Bismath (Bi)

0.030

Iron (Fe)

0.001

Zinc (Zn)

0.001

Silver (Ag)

0.005

Other Impurities

Within Specified Limits

Applications: For making Lead Pipes / Chemical reactors

Tin Lead Alloy

Elements

(%) Limits

Antimony (Sb)

0.005

Arsenic (As)

0.001

Bismath (Bi)

0.030

Iron (Fe)

0.001

Copper (Cu)

0.005

Tin (Sn)

20 – 80 (As per requirement)

Other Impurities

Within Specified Limits

Applications: For making Solder Alloy

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:

Material Number

Lead E Alloy & E ½ Elements

 

Ag

As

Bi

Cd

Cu

Ni

Sb

Sn

Te

Zn

Pb

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

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)

Ni

Cu

As

Zn

Ag

Sb

Bi

Sn

Te

Cd

max 0.0005

Max
0.003

Max
0.001

max 0.0005

max 0.0025

Max
0.003

Max
0.015

0.17 – 0.23

Max
0.002

0.06 – 0.09

Pb – remainder