Tuesday, January 4, 2022

Carbon Steel Grade B A106 Seamless Pipes

Carbon Steel Grade B A106 Seamless Pipes:

Carbon Steel Grade B A106 Seamless Pipe known as ASME SA106 pipe.

Carbon Steel Grade B A106 Seamless Pipes commonly used in the construction of oil and gas refineries, power plants, petrochemical plants, boilers, and shipsetc.

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 thk.

Material Grades:

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

 

Chemical Composition ASTM A106 Carbon Steel Pipes Grades

 Grade AGrade BGrade CTotal of Cr, Cu, Mo, Ni, and V shall not exceed 1%
Carbon max. %0.250.300.35
Manganese %0.27 to 0.930.29 to 1.060.29 to 1.06
Phosphorous, max. %0.0350.0350.035
Sulfur, max. %0.0350.0350.035
Silicon, min.%0.100.100.10
Chrome, max. %0.400.400.40
Copper, max. %0.400.400.40
Molybdenum, max. %0.150.150.15
Nickel, max. %0.400.400.40
Vanadium, min.%0.080.080.08

 

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

NPS [DN Designator]OverUnder
in.mmin.mm
1/8 to 1-1/2 [6 to 40], incl1/64 (0.015)0.41/64 (0.015)0.4
Over 1-1/2 to 4 [40 to 100], incl1/32 (0.031)0.81/32 (0.031)0.8
Over 4 to 8 [100 to 200], incl1/16 (0.062)1.61/32 (0.031)0.8
Over 8 to 18 [200 to 450], incl3/32 (0.093)2.41/32 (0.031)0.8
Over 18 to 26 [450 to 650], incl1/8 (0.125)3.21/32 (0.031)0.8
Over 26 to 34 [650 to 859], incl5/32 (0.156)4.01/32 (0.031)0.8
Over 34 to 48 [850 to 1200], incl3/16 (0.187)4.81/32 (0.031)0.8

 

Tensile Requirements

 Seamless
 Grade AGrade BGrade C
Tensile Strength, min., psi48,00060,00070,000
Yield Strength, min., psi30,00035,00040,000

 

Number of Tests Required

 NPSOn One Length from Each Lot of
Tensile5 and smaller400 or less
6 and larger200 or less
Bending2 and smaller400 or less
Flattening2 through 5400 or less
6 and over200 or less

 

Carbon Steel ASTM A53 Seamless Pipes:

Carbon Steel ASTM A53 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 services
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 A33 Gr. 3/6 Seamless Pipes

Chemical Requirements

 Composition, % 
ElementGrade 1Grade 3Grade 6
Carbon, max0.300.190.30
Manganese0.40 – 1.060.31 – 0.640.29 – 1.06
Phosphorous, max0.0250.0250.025
Sulfur, max0.0250.0250.025
Silicon0.18 -0.370.10 min
Nickel3.18 – 3.82

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