Top Grades
Home - Steel plate - Gr.B steel

Gr.B steel

Gr.B steel plate/pipes specification covers seamless and welded steel line pipe.Gr.B steel plate/pipes sincludes standard-weight and extra-strong threaded line pipe. Gr.B steel plate/pipes includes standard-weight and extra-strong threaded line pipe; and standard-weight plain-end, regular-weight plain-end, special plain-end, extra-strong plain-end, special plain-end, extra-strong plain-end pipe; as as well as bell and spigot and through-the-flow line(TFL) pipe.
Gr.B steel plate/pipes is to provide standards for pipe suitable for use in conveying gas, water, and oil in both the oil and natural gas industries.

Gr.B
API5L  Material#1.0457
Comparison of steel grades
DIN 17172 StE240.7
EN10208-2 L245NB

Chemical analysis -% by  mass*

Grades Material number C
max
Si max Mn.
mix
P
max
S
max
Gr.B 1.0457 0.17 0.45 0.4 0.04 0.035

Mechanical properties

Grade Permissible yield point
ratio
Yield Strength
MPa(min)
Tensile Strength
MPa
Elongation
% (min)
Gr.B ≤ 0.85 240 370 - 490 24