API 5L X56 Pipe

API 5L X56 s is a grade of pipes with a minimum yield strength of 56KPSI and it is stronger than the lower grades in this specification. The specification is monitored by the American Petroleum Institute and there are different grades in it. Steel India Co. is a manufacturer and supplier of various grades of pipes in this specification such as the Api 5l X56m which are used to transport oil, gas and water through long lines of pipes. There are two major product level specifications in this grade.

The Api 5l X56 Psl2 is the stronger version. The psl1 has lower mechanical properties than the Api 5l X56m Psl2 and therefore is less costly. Our Api 5l Grade X 56 products are used in petroleum industries, natural gas industries and domestic water supply for the transportation of these liquids. The L390 Pipes can also be used with the same applications. Our X56 Grade Casing is applicable where extra corrosion resistance, temperature resistance and pressure performance are needed. We produce pipes in different classifications such as the API 5l Grade X56a as well. We encourage our customers to contact us to get more information and pricing of pipes in this specification.

Grade X56 Pipse Dimensions Standard 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

X56m PSL2 ERW Pipes Material Equivalent

Material Grade PSL1 L390 or x56
Grade PSL2 L390Q or X56Q
L390N or X56N
L390M or X56M

X56 Steel Pipes Chemical And Physical Properties

Grade P C S Mn Mn C S P
X56 0.03 0.26 0.03 1.40 1.40 0.22 0.015 0.025

API 5l Grade X56a Minimum Yield Strength

Pipe Grade Tensile Strength - X56 Pipe Body of Seamless and Welded Pipes PSL 1 SMLS of X56 Welded Pipe
Yield Properties a Tensile Properties a Elongation Tensile Properties b
Rt0,5 PSI Min Rm PSI Min (in 2in Af % min) Rm PSI Min
X56 56,600 71,100 c 71,100

Pipes Grade Tensile Strength - X56 Pipes Body of SMLS and Welded Pipes PSL 2 Seam of X56 Welded Pipes
Yield Properties a Tensile Properties a Ratio a,c Elongation Tensile Properties d
Rt0,5  PSI Min Rm  PSI Min R10,5IRm (in 2in) Rm (psi)
Af %
X56N, X56Q, X56M 56,600 79,000 71,100 110,200 0.93 f 71,100