Steel pipe grades chart

Tables for two basic levels of standard technical requirements for line pipe. Product specification levels PSL1 (standard quality) and PSL2 (additional mandatory requirements).

Delivery conditions available are: R (As-rolled), N (normalized), Q (quenched and tempered) or M (thermo-mechanical rolled or thermo-mechanical formed).

Both unit systems are available: International System (SI) units and United States Customary (USC) units.

Display pipe grade properties

• Yield strength (Rt_min)
• Yield strength (Rt_max)
• Tensile strength (Rm_min)
• Tensile strength (Rm_max)
• Yield/Tensile ratio (Rt/Rm)
• Elongation (e)

• R_t – Yield strength, expressed in MPa or psi
• R_m – Tensile strength, expressed in MPa or psi
• CE_IIW – carbon equivalent, based upon the International Institute of Welding equation
• CE_Pcm – carbon equivalent, based upon the chemical portion of the Ito-Bessyo carbon equivalent equation

PSL2; C<0.12

PSL2; C>0.12

Where the symbols for the chemical elements represent the mass fraction in percent