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 Pipes	ASTM A106 Gr. B/C, API 5L Gr. B, ASTM A53 Gr. B
Heat Exchanger Seamless Tubes	ASTM A179
Low Temperature Seamless Pipes	ASTM A333 Gr. 3/6
Low Temperature Seamless Tubes	ASTM A334 Gr. 6
High Yield Seamless Pipes	API 5L Gr. X42/X46/X52/X56/X60/X65/X70/X80 PSL-1/PSL-2
High Yield Seamless Pipes	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 Pipes	API 5L Gr. X42/X46/X52/X56/X60/X65/X70/X80 PSL-1/PSL-2
High Yield ERW/SAW Pipes	ISO 3183 Gr.L245, L290, L320, L360, L390, L415, L450, L485

 

Chemical Composition ASTM A106 Carbon Steel Pipes Grades

	Grade A	Grade B	Grade C	Total of Cr, Cu, Mo, Ni, and V shall not exceed 1%
Carbon max. %	0.25	0.30	0.35
Manganese %	0.27 to 0.93	0.29 to 1.06	0.29 to 1.06
Phosphorous, max. %	0.035	0.035	0.035
Sulfur, max. %	0.035	0.035	0.035
Silicon, min.%	0.10	0.10	0.10
Chrome, max. %	0.40	0.40	0.40
Copper, max. %	0.40	0.40	0.40
Molybdenum, max. %	0.15	0.15	0.15
Nickel, max. %	0.40	0.40	0.40
Vanadium, min.%	0.08	0.08	0.08

 

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

NPS [DN Designator]	Over		Under
	in.	mm	in.	mm
1/8 to 1-1/2 [6 to 40], incl	1/64 (0.015)	0.4	1/64 (0.015)	0.4
Over 1-1/2 to 4 [40 to 100], incl	1/32 (0.031)	0.8	1/32 (0.031)	0.8
Over 4 to 8 [100 to 200], incl	1/16 (0.062)	1.6	1/32 (0.031)	0.8
Over 8 to 18 [200 to 450], incl	3/32 (0.093)	2.4	1/32 (0.031)	0.8
Over 18 to 26 [450 to 650], incl	1/8 (0.125)	3.2	1/32 (0.031)	0.8
Over 26 to 34 [650 to 859], incl	5/32 (0.156)	4.0	1/32 (0.031)	0.8
Over 34 to 48 [850 to 1200], incl	3/16 (0.187)	4.8	1/32 (0.031)	0.8

 

Tensile Requirements

	Seamless
	Grade A	Grade B	Grade C
Tensile Strength, min., psi	48,000	60,000	70,000
Yield Strength, min., psi	30,000	35,000	40,000

 

Number of Tests Required

	NPS	On One Length from Each Lot of
Tensile	5 and smaller	400 or less
	6 and larger	200 or less
Bending	2 and smaller	400 or less
Flattening	2 through 5	400 or less
	6 and over	200 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, %
Element	Grade 1	Grade 3	Grade 6
Carbon, max	0.30	0.19	0.30
Manganese	0.40 – 1.06	0.31 – 0.64	0.29 – 1.06
Phosphorous, max	0.025	0.025	0.025
Sulfur, max	0.025	0.025	0.025
Silicon		0.18 -0.37	0.10 min
Nickel		3.18 – 3.82

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