What material is L245N seamless steel pipe made of?
Mechanical properties: Yield strength: 245 MPa Tensile strength: 415 MPa Elongation: 21 min
Chemical composition: C: 0.26 Mn: 1.15 S: no more than 0.030 P: no more than 0.030
The N in L245NB means that the L245 steel has been deformed and normalized. B means B grade steel pipe.
Therefore, L245NB means deformation normalization based on L245.
What standards does L245N seamless steel pipe implement?
L245N seamless steel pipe complies with GB/T9711-2011 standard
L245N seamless steel pipe weight calculation formula: (outer diameter - wall thickness) X wall thickness X0.02466 = weight per meter (unit/kg/m)
L245N seamless steel pipe mechanical properties:
Yield strength: greater than or equal to 245MPa (35500psi) less than or equal to 450MPa (65300psi)
Tensile strength: greater than or equal to 415MPa (60200psi) less than or equal to 655MPa (95000psi)
Application areas: used for gas, water and oil transportation in the petroleum and natural gas industries.
What does the C in natural gas steel pipe L245NC stand for?
There is a clear explanation in GB/T9711.3-2005 "Technical Delivery Conditions for Transportation Steel Pipes in the Oil and Gas Industry Part 3 Grade C Steel Pipes":
In the steel grade symbols N, Q and M refer to the heat treatment state,
N = normalizing or deformation normalizing
Q=quenching plus tempering
M=Deformation heat treatment
C refers to C grade steel pipe
