API
Technical Specification

Under the license from American Petroleum Institute (API), Line pipes for oil and gas transmission are produced strictly according to the requirements of API Spec 5L, Q1 and        ISO 9001. The Line pipes also correspond to the Grade A – 53B of the ASTM (American Society for Testing and Materials) specification.

 

 Criteria

 

 

 

 

Particulars

 

Standards & Pipe/Steel Grade


 

API Spec 5L PSL 1

 

L245 or B

 

L290 of X42 

 

Chemical Composition (%)

Carbon

Manganese

Sulphur

Phosphorus

0.26 max.

1.20 max.

0.030 max.

0.030 max.

0.26 max.

1.30 max.

0.030 max.

0.030 max.

 

Tensile Properties

Yield Strength (min.)

MPa

psi

kgf/mm2

 

245

35 500

25

 

290

42 100

29.6

Tensile Strength (min.)

MPa

psi

kgf/mm2

 

415

60 200

42.33

 

415

60 200

42.33

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

 

21

 

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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