API X70 steel pipe

API X70 steel pipe application for the oil and gas industry, oxygen, water, oil pipes.

API5L Steel pipe for pipeline transportation system

American Petroleum Institute API (American Petroleum Institute) for short, 5L refers to the API standard API Spec 5L "line pipe", X70 refers to the steel grade, divided into PSL1 and PSL2, the required minimum yield strength 70300psi, The minimum ultimate tensile strength of 82700psi.

Sunny Steel is specialized in supplying API 5L steel pipe in X70.
For more information of API 5L X70 steel pipe, please check them in following:

Chemical composition of API 5L X70
 C(%)  Si(%)  Mn(%)  P(%)  S(%)  Nb(%)
 ≤0.16  ≤0.45  ≤1.70  ≤0.020  ≤0.020  ≤0.06

Mechanical properties of API 5L X70
 Tensile strength (Mpa)  Yield strength (Mpa) Yield Ratio  Elongation (%)
485-605  ≥0.90 18  ≥40

API 5L X70 steel pipe Surface: Black painted,PE coated,Galvanized,color coated,etc

API 5L X70 steel pipe Delivery States:Heat treatment facilities for hot-rolled,controlled rolling, normalizing, annealing, tempering, quenching, normalizing plus tempering, quenching and tempering, and other delivery states are available as customers’ requirement.

API 5L X70 steel pipe Tests:HIC, SSC, SPWHT, Macrostructure, detection of defects,Hardness and DWTT test and en10204/3.1 certificate are also available.



Range I: 4,00-12,00 meters (13,1-40,0 ft)

Fixed lengths within the manufacture lengths range. Tolerances: ± 100 mm (± 3,94 ft)


Unprotected or external oiled/external varnished

Each pipe is provided with plastic protectors at both ends


Die stamping or/and paint stenciled according to standard or per customer request

Technical details can be also marked on tags attached to each bundle.


In bundles of maximum 2500 Kg, tied in minimum four places with steel strips.


Mill test reports are issued to customer requirements.

Usually they comply with EN 10204 - 3.1.B (DIN 50049 - 3.1.B)

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