GI
Technical Specification

Galvanizing is done according to the British Standard BS-729 which is equivalent to DIN 2444 and IS-4736.

 

 

Criteria

 

 

Particulars

Standards & Pipe/Steel grade

BS-1387 & BDS-1031

‘A’ Class

Chemical Composition (%)

Carbon

Manganese

Sulphur

Phosphorus

0.17 – 0.25

0.95 – 1.20

0.060 max.

0.060 max.

Tensile  Properties

Yield Strength (min.)

MPa

psi

kgf/mm2

 

188

27 300

19.2

Tensile Strength (min.)

MPa

psi

kgf/mm2

 

313

45 500

32

Elongation on a test specimen of 2" gauge length and 0.13 sq. in. cross-section, % (min.).

 

21

 

 

Note: 1 kgf/mm2 = 9.8 MPa,  1 MPa = 0.102 kgf/mm2,  1 kgf/mm2 = 1422.3 psi

           1 MPa = 145.0377 psi,  1 psi = 7.031 x 10-4 kgf/mm2 ,1 psi = 0.07030814 kgf/cm2

 

   

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