A53 GR. B Carbon Steel Seamless Pipes

IBR Certified A53 GR B Carbon Steel Pipes

Carbon steel pipes manufacturer & supplierASTM A53 pipe (also referred to as ASME SA53 pipe) is intended for mechanical and pressure applications and is also acceptable for ordinary uses in steam, water, gas, and air lines. It is suitable for welding, and suitable for forming operations involving coiling, bending, and flanging, subject to certain qualifications.
This specification covers seamless carbon steel pipe for high-temperature service

Sizes (Seamless): 1/2″ NB – 60″ NB
Sizes (ERW): 1/2″ NB – 24″ NB

Sizes (SAW): 16″ NB – 100″ NB

Wall Thickness available:
Schedule 20 – Schedule XXS (heavier on request) up to 250 mm thickness.

Carbon Steel Pipe is available in:

  • ASTM A53 GR. B
  • A106 GR. B
  • API 5L GRADE B
  • API 5L GR. X42/46/52/56/60/65/70
  • A333 GR. 3/ GR. 6 etc

Find Out Steber Steel API Seamless Pipe Range Like API 5L GR.B PIPE, API 5L X52, X56, X60, X65 SEAMLESS PIPE

Material Grades :

 High Temperature Seamless Pipe ASTM A106 Gr. B/C, API 5L Gr. B, ASTM A53 Gr. B
Heat Exchanger Seamless Tube ASTM A179
Low Temperature Seamless Pipe ASTM A333 Gr. 3/6
Low Temperature Seamless Tube ASTM A334 Gr. 6
High Yield Seamless Pipe API 5L Gr. X42/X46/X52/X56/X60/X65/X70/X80 PSL-1/PSL-2
High Yield Seamless Pipe ISO 3183 Gr.L245, L290, L320, L360, L390, L415, L450, L485
Atmospheric & Low Temp EFW Pipes ASTM A671 Gr. CC60/CC65/CC70
High Pressure & Moderate Temp EFW Pipes ASTM A672 Gr. B60/B65/B70/C55/C60/C65/C70
High Yield ERW/SAW Pipe API 5L Gr. X42/X46/X52/X56/X60/X65/X70/X80 PSL-1/PSL-2
High Yield ERW/SAW Pipe ISO 3183 Gr.L245, L290, L320, L360, L390, L415, L450, L485

Additional Testing:
NACE MR0175, NACE TM0177, NACE TM0284, HIC TEST, SSC TEST, H2 SERVICE, IBR, etc.

Dimensions:
All Pipes is manufactured and inspected/tested to the relevant standards including ASTM, ASME, API

Chemical Requirements

Type S
(seamless)
Type E (electric-
resistance welded)
Type F (furnace-
welded pipe)
Grade A Grade B Grade A Grade B Grade A
Carbon max. % 0.25 0.30 0.25 0.30 0.3
Manganese % 0.95 1.2 0.95 1.2 1.2
Phosphorous, max. % 0.05 0.05 0.05 0.05 0.05
Sulfur, max. % 0.045 0.045 0.045 0.045 0.045
Copper, max.% 0.40 0.40 0.40 0.40 0.4
Nickel, max. % 0.40 0.40 0.40 0.40 0.4
Chromium, max. % 0.40 0.40 0.40 0.40 0.4
Molybdenum, max. % 0.15 0.15 0.15 0.15 0.15
Vanadium, max. % 0.08 0.08 0.08 0.08 0.08

Permissible Variations in Wall ThicknessThe minimum wall thickness at any point shall not be more than 12.5% under the nominal wall thickness specified.

Permissible Variations in
Weights per Foot

Plus or minus 10%

Permissible Variations in
Outside Diameter

Outside Diameter at any point shall not vary from standard specified more than:

For NPS 1 1/2 and Smaller Sizes For NPS 2 and Larger Sizes
1/64″ 1/32″ under 1% over 1%under

Number of Tests Required

Seamless and Electric-Resistance-Welded — Bending, flattening, tensile on one length of pipe from each lot of 500 lengths or less of a size.
Continuous-Weld — Bending, flattening, tensile

NPS 1 1/2 & smaller NPS 2 & larger
one / 25 tons one / 50 tons

Hydrostatic Testing 

Hydrostatic inspection test pressures for plain end and threaded and coupled pipe are specified. Hydrostatic pressure shall be maintained for not less than 5 seconds for all sizes of seamless and electric-resistance-weld pipe.

Mechanical Tests Specified

Tensile Test — Transverse required on ERW for NPS 8 and large.
Sending Test (Cold) — STD and XS-NPS 2 and under XXS-NPS 1 1/4 and under.

Degree of Bend Diameter of Mandrel
For Normal A53 Uses 90 12 x nom dia. of pipe
For Close Coiling 180 8 x nom dia. of pipe

Flattening Test – NPS 2 and larger STD and XS. (Not required for XXS pipe.)