API 5L X70 Pipe
We are making carbon steel seamless pipes and stainless steel welded pipes in quality material which are durable in use and long lasting. These steel pipes are fruitfully supporting and playing the main part in the pipe fittings where liquid flow is made possible and effective.
Items
Seamless, ERW,
LSAW, EFW.
Specifications
ANSI B36.10, ANSI B36.19
Material Grades
Carbon Steel
ASTM A53 Gr. B, ASTM A106 Gr. B, ASTM A333, Gr.3, Gr.6
API 5LA, B, X42, X46, X52, X56, X60, X65, X70
CHEMICAL COMPOSITION | |||||||
Mass fraction, based upon heat and product analysis a | |||||||
SEAMLESS PIPE | |||||||
C | Mn | P | S | V | Nb | Ti | |
maxb | max.b | min. | max. | max. | max. | max. | max. |
0.28e | 1.40e | - | 0.030 | 0.030 | f | f | f |
WELDED PIPE | |||||||
0.26e | 1.65e | - | 0.030 | 0.030 | f | f | f |
a | 0.50% maximum for copper, 0.50% maximum for nickel, 0.50% maximum for chromium, and 0.15% maximum for molybdenum. For grades up to and including L360/X52, Cu, Cr and Ni shall not be added intentionally. | ||||||
b | For each reduction of 0.01% below the specified maximum concentration for carbon, an increase of 0.05% above the specified maximum concentration for manganese is permissible, up to a maximum of 1.65% for grades = L245 or B, but = L360 or X52; up to a maximum of 1.75% for grades > L360 or X52, but < L485 or X70; and up to a maximum of 2.00% for grade L485 or X70. | ||||||
e | Unless otherwise agreed. | ||||||
f | Unless otherwise agreed, the sum of niobium, vanadium and titanium concentrations shall be = 0.15%. |
MECHANICAL REQUIREMENTS | |||
Weld seam of EW, SAW and COW pipes | |||
Y.Sa | T.Sa | ELONGATION | Tensile Strengthb |
Mpa(psi) | Mpa(psi) | Mpa(psi) | |
min | min | min | min |
485(70 300) | 570(82 700) | c | 570 (82 700) |
a | For intermediate grades, the differencec between the specified minimum tensile strength and the specified minimum yield strength for the pipe body shall be as given in the table for the next higher grade. | ||
b | For Intermediate grades, the specified minimum tensile strength for the weld seam shall be the same value as was determines for the pipe body using footnote a) | ||
c |
The specified minimum elongation, Af, expressed in percent and rounded to the nearest percent, shall be as determined using the following equation: |
上一篇:Welded Pipes - API 5L Gr.B,EN 10217,DIN 24338,EN 10305,EN 10