API5L/A106B Seamless Steel Tubes

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API5L/A106B Seamless Steel Tubes

Estándar: ASTM A106/API 5L
Seamless carbon steel tubes for high-temperature service
● Application: for high temperature service.
● Size range: O.D.: 15-120mm W.T.: 1-15mm L.: 15000mm max.

Table 1: steel grade and chemical composition:

Grado C (.max) Mn P (.max) S (.max) Si (min) Cr (.max) Cu (.max) Mo (.max) N (.max) V (.max)
Un 0.25 0.27-0.93 0.035 0.035 0.10 0.40 0.40 0.15 0.40 0.08
B 0.30 0.29-1.06 0.035 0.035 0.10 0.40 0.40 0.15 0.40 0.08
C 0.35 0.29-1.06 0.035 0.035 0.10 0.40 0.40 0.15 0.40 0.08

Table 2: Mechanical property:

Grado Tensile Strength Rm (Mpa) Punto de fluencia (Mpa) Elongation A% Condiciones de entrega
Un ≥330 ≥205 20 Recocido
B ≥415 ≥240 20 Recocido
C ≥485 ≥275 20 Recocido

Table 3: Dimension Tolerances

Pipe Type Pipe Sizes Tolerancias
Estirado en frío OD ≤48.3mm ±0.40mm
≥60.3mm ±1%mm
WT ±12.5%

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