API 5L X65 Pipe

API 5L X65 Pipes is a part of American Petroleum Institute specified pipes grades. It is one of the highest grades in this specification. The pipes of this grade have 65,000 PSI of minimum yield strength. Steel India Co. produces the Api 5l X65 Psl2 level and the psl1 level of these products to suit different needs of these applications. The Api 5l X65 Material varies according to the applications as well. There are different alloy steel materials and carbon steel used for the manufacturing of these pipes.

We manufacture the Api 5l X65 Pipes products from different material grades according to our customer requirements. We also manufacture these pipes from the Api 5l X65 Carbon Steel material as well. There are different classifications such as the Api 5l X65 Dsaw Pipes and different types such as the seamless pipes and ERW pipes. The seamless pipes are dimensionally accurate where the ERW pipes are welded in the making and are stronger. The Api 5l X65 Erw pipes are also easy to weld with and are used widely in pipes lines in the petroleum, natural gas, oil and water distribution applications. Please contact us for any inquiries related to Api 5l Grade X65 Psl2 and other grades of piping products.

API 5l X65 PSL2 Pipes Materials Selection And Specification

Standard API 5L Grade B
Product Specification Level API 5L Product Specification Level 2
API 5L Product Specification Level 1
Sizes Np Size 1/2" to Sizes 48 upto Other Daimeter.
WT - Sch 10 to 160, XS, STD, XXS.
  • Sand Blasting
  • ARO
  • Tar Epoxy
  • Annealed
  • Galvanizing
  • 3LPE
  • Machining etc.
  • Bending
  • Heat Treatment
Type ERW /Seamless / Fabricated / Welded / CDW
Other stockist JSL, MSL,ISMT, BAO, USL, Lontrin, TNRS, SMTM, and Wuxi
Applications Petrochemicals, Oil Refineries, Pressure Vessels, Power Generation, Sugar, Steel, Boiler Equipments
Test Methods
  • Hydrostatic test
  • Flattening test
  • DWT test for PSL2 pipe
  • CVN impact test for PSL2 pipe (including pipe body tests, pipe weld and HAZ tests)
  • Guided-bend test
  • Bend test
Length Double Random, Single Random, Any Sizes - 12 Meters
End Screwed, Bevel, Plain, Threaded
Thickness Schedule 40, 80, 160, XS, XXS

API 5l X65 PSL 1 ERW Pipes Mechanical Analysis

Grade Composition, %
C S Mn P Nb V Ti
min max
B 0.28 0.03 1.2 0.03 c,d c.d d
X65 0.28 0.03 1.4 0.03 f f f

API 5l Gr X65 Pipes Chemical Compatibility Chart

Grade Composition, %
S C V Si Nb Mn Other P Ti
X65Q 0.015 0.18 g 0.45 g 1.7 h,l 0.025 g

Grade Chemical Composition
P C S Si Nb Mn V Ti
API 5L X65 0.020 0.16 0.010 0.45 0.05 1.65 0.09 0.06

X65 Steel Pipes Allowable Stress

Grade Tensile Properties 
Elongation Yield Properties
Yield to Tensile 
  min. (KSI) % min. (KSI) Ratio (max)
API 5L X65 77 18 65 0.93