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Carbon Steel Pipes & Tubes

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Carbon steel are iron carbon alloy containing 2.06% of carbon, 1.65% of manganese, 0.5% of silicon, and sulfur and phosphorus as impurities. These are used for engineering purpose, ERW pipes for water, gas & sewerage, carbon steel tubes for idlers of belt conveyors, water wells and lancing pipes for various automotive & industrial applications.

Carbon Steel Pipes & Tubes

Carbon steel pipes & tubes are used in critical engineering application and also in automotive sectors of chemical industries. These pipes and tubes include LPG cylinders, API grade, and medium/high carbon grades. These pipes and tubes are in different sizes as per requirements they are molded. They include ASTM A333 Grade6, ASTM A106 Grade B & GRADE C, API 5L 290 OR X 42, API 5L 390 OR X 56, API 5L 415 OR X60, API 5L450 OR X65, API 5L 485 OR X70, API 5L 245 OR B, API 5L 290 OR X 42, API 5L 390 OR X 56, API 5L 450 OR X 65, API 5L 485 OR X70, API 5L 245 OR GR.B,

 

Carbon Products


A53 A106 API5L Grade B/C X42 Seamless Pipe
Size Range : 1/8" - 26" 
Schedules : 20, 30, 40, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH
Grades : ASTM A53 GR B, ASME SA53 GR B, API-5L GR B, ASTM A106 GR B, ASME SA106 GR B, ASTM A106 GR C, PSL 1 and PSL2

API5L X-42 X-52 X-60 Seamless Pipe
Size Range : 2" - 24" 
Schedules : Standard (STD), Extra Heavy (XH), 100, 120, 160, XXH
Grades : PSL1 and PSL2

A333 (Low Temp) Grade 1/6 Carbon Steel Seamless Pipe
Size Range : 1/2" - 24" 
Schedules : Standard (STD), Extra Heavy (XH), 100, 120, 160, XXH

A53 API5L Grade B X-42 X-52 X-60 ERW (Electric Resistance Welded) Pipe
Size Ranges : 2" - 24" 
Schedules : 10, 20, Standard (STD), Extra Heavy (XH) 
Non-Schedules : .120wall, .156wall, .188wall, .203 wall, .219wall etc. 
Grades : API-5L GR B, API-5L GR X42, API-5L GR X52, API-5L GR X60, API-5L GR X65PSL1 and PSL2

API5L Grade B X-42 X-52 X-60 DSAW/SAW
Size Ranges : 26" - 60" 
Schedules : 20, Std, XH, 30, 
Grades : API-5L GR B, API-5L GR X42, API-5L GR X52, API-5L GR X60, API-5L GR X65PSL1 and PSL2 

Carbon Steel Pipes & Tubes

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ASTM A333 Grade 6 Tubes

ASTM A333 Grade6 is the specification that covers average quantity of seamless and welded carbon and alloy steel pipe used at low temperatures. When Grade 6 is ordered under this specification, the supply of an alloy grade requires the addition of any element other than those listed for the ordered grade is not permitted. The addition of elements required for de-oxidation of the steel is permitted on Mechanical Requirements, Tensile Requirements etc.

 

MECHANICAL REQUIREMENTS

ELEMENT

COMPOSITION, %

C, Max

0.30

Mn

0.29-1.06

P,Max

0.03

S, Max

0.03

Si, Min

Si, Min

A For each reduction of 0.01% carbon below 0.30%, an increase of 0.05% manganese above 1.06% would be permitted to a maximum of 1.35% manganese.

 


 

TENSILE REQUIREMENTS

 

 

 

ELONGATION

 

psi

Mpa

L

T

Y.S,min

35 000

240

22

12

T.S,min

60 000

415

 

 

 

 


 

Stress Relieving of Test Pieces

Metal Temperature

°F

°C

5

600

1050

565

1000

540

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ASTM A106 Grade B & GRADE C Pipes

ASTM A106 is the standard code used for carbon steel pipes and tubes. It has the grade of B& C. It has the applications of bending, curling and similar forming processes nature. It has the Chemical composition and mechanical properties. This specification coves seamless carbon steel pipe and tube of the high- temperature. In this minimum pressure is applied in this process. It has larger sizes in length. It can bend up to 90 degrees to 180 degrees in cool temperature.

 

 

 

CHEMICAL REQUIREMENTS

ELEMENT

COMPOSITION, %

 

 

ASTM A106 Gr.B

ASTM A106 Gr.C

C maxA

0.30

0.35

Mn

0.29-1.06

0.29-1.06

P, max

0.04

0.04

S, max

0.04

0.04

Si, min

0.10

0.10

Cr, maxB

0.40

0.40

Cu, maxB

0.40

0.40

Mo, maxB

0.15

0.15

Ni, maxB

0.40

0.40

V, maxB

0.08

0.08

A) For each reduction of 0.01% below the specified carbon maximum, an increase of 0.06% manganese above the specified maximum will be permitted up to a maximum of 1.35%.
B) These five elements combined shall not exceed 1%.

Tensile Requirements

 

ASTM A106 Gr.B

ASTM A106 Gr.C

Y.S, min, psi[Mpa]

35 000 [240]

40 000 [275]

T.S., min, psi[Mpa]

60 000 [415]

70 000 [485]


ELONGATION

ASTM A106 Gr.B

ASTM A106 Gr.C

L

T

L

T

22

12

20

12

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API 5L 290 OR X 42 Pipes


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.
0.28 1.30 - 0.030 0.030 d d d
WELDED PIPE
0.26 1.30 - 0.030 0.030 d d d
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.
d The sum of the 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
290(42 100) 415(60 200) c 415 (60 200)
a For intermediate grades, the difference 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:


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API 5L 390 OR X 56 Tubes


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.
0.28 1.40 - 0.030 0.030 d d d
WELDED PIPE
0.26 1.40 - 0.030 0.030 d d d
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.
d The sum of the 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
390(56 600) 490(71 100) c 490 (71 100)
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:

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API 5L 415 OR X60 Pipes

API 5L 415 OR X60 is the standard of API and manufacture as per ASTM standards. These contains specification that provides standards for pipe and tubes suitable for use in conveying gas, water, and oil in the natural gas and oil industries. It covers seamless and welded steel line pipe. It also includes plain-end, threaded-end, and belled-end pipe, as well as through-the-flow line (TFL) pipe, and pipe with ends prepared for use with special couplings.

 

 

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 1.40e - 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
415(60 200) 520(75 400) c
520 (75 400)
a For intermediate grades, the difference 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:

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API 5L450 OR X65 Tubes

API 5L450 OR X65 is the higher strength, weld able steel for application in oil and gas industries. It has the property like it has high resistance power. It requires low temperature to manufacture pipes and tubes. This API 5L450 OR X65 has the ability to control thermal power and other electrical induction.

 

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
0.26 1.45e - 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
450(65 300) 535(77 600) c 535 (77 600)
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:


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API 5L 485 OR X70 Pipes

API 5L 485 OR X70 is of type Cold-draw and manufactured with large diameter. It contains low carbon. The pipes and tubes manufactured from this are used for limited times. They do not undergo the mechanical requirements. These contain a particular percentage of heat and product analysis. It contains the standard of grade A and B, but they are non carbon alloys.

 

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 difference 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:

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API 5L 245 OR B Tubes

API 5L 245 OR B includes standard-weight and extra-strong threaded line pipe. The purpose of this specification is to provide standards for pipe suitable for use in conveying gas, water, and oil in both the oil and natural gas industries. It contains B-grade specifications. In this all Pipes are manufactured and tested to the relevant standards including ASTM, ASME, and API. It is mostly used in conjunction with all of the steel.

 


CHEMICAL COMPOSITION
Mass fraction, based upon heat and product analysis % maximum CARBON EQUIVALENT a
% MAXIMUM
PIPE GRADE Cb Si Mnb P S V Nb Ti Other CEIIW CEPcm
SEAMLESS & WELDED PIPES
L245R OR BR 0.24 0.40 1.2 0.03 0.02 c c 0.04 e 0.43 0.25
L245Q OR BQ 0.18 0.45 1.4 0.03 0.02 0.05 0.05 0.04 e 0.43 0.25
WELDED PIPE
L245M OR BM 0.22 0.45 1.2 0.03 0.02 0.05 0.05 0.04 e 0.43 0.25
a Based upon product analysis. For seamless pipe with t>20.0 mm (0.787 in), the carbon equivalent limits shall be as agreed. The CELLW limits apply if the carbon mass fraction is greater than 0.12% and the CEpcm limits apply if the carbon mass fraction is less than or equal to 0.12%.
b For each reduction of 0.01% below the specified maximum for carbon, an increase of 0.05% above the specified maximum for manganese is permissible, up to a maximum of 1.65% for grades = L245 or B
c unless otherwise agreed, the sum of th niobium & vanadium concentrations shall be = 0.06%
e Unless otherwise agreed, 0.50% maximum for copper, 0.30% maximum for nickel, 0.30% maximum for chromium, & 0.15% maximum for molybdenum.
CEIIW C+(Mn/6)+(Cu+Ni/15)+(Cr+Mo+V/5)
CEPcm C+(Si/30)+(Mn/20)+(Cu/20)+(Ni/60)+(Cr/20)+(Mo/15)+(V/10)+5B

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API 5L 290 OR X 42 Pipes

API 5L 290 OR X 42 produce a large diameter of carbon steel seamless pipes and tubes. It has the applications of bending, curling and similar forming processes nature. It has the Chemical composition and mechanical properties. This specification coves seamless carbon steel pipe and tube of the high- temperature. In this minimum pressure is applied in this process. It has larger sizes in length. It can bend up to 90 degrees to 180 degrees in cool temperature.


CHEMICAL COMPOSITION
Mass fraction, based upon heat and product analysis % maximum CARBON EQUIVALENT a









% MAXIMUM
Cb Si Mnb P S V Nb Ti Other CEIIW CEPcm
SEAMLESS & WELDED PIPES
0.24 0.4 1.2 0.03 0.02 0.06 0.05 0.04 e 0.43 0.25
0.18 0.45 1.4 0.03 0.02 0.05 0.05 0.04 e 0.43 0.25
WELDED PIPE
0.22 0.45 1.3 0.03 0.02 0.05 0.05 0.04 e 0.43 0.25
a Based upon product analysis. For seamless pipe with t>20.0 mm (0.787 in), the carbon equivalent limits shall be as agreed. The CELLW limits apply if the carbon mass fraction is greater than 0.12% and the CEpcm limits apply if the carbon mass fraction is less than or equal to 0.12%.
b For each reduction of 0.01% below the specified maximum for carbon, an increase of 0.05% above the specified maximum for manganese is permissible, up to a maximum of 1.65% for grades = L245 or B
e Unless otherwise agreed, 0.50% maximum for copper, 0.30% maximum for nickel, 0.30% maximum for chromium,
CEIIW C+(Mn/6)+(Cu+Ni/15)+(Cr+Mo+V/5)
CEPcm C+(Si/30)+(Mn/20)+(Cu/20)+(Ni/60)+(Cr/20)+(Mo/15)+(V/10)+5B

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API 5L 390 OR X 56 Pipes

API 5L 390 OR X 56 is manufactured as per ASTM standards. These are in large diameter pipes. These are used for pressure liquid transport, oil, gas, water and other liquid transportation, oilfield engineering, construction, steel pipe and oil and gas project. The main chemical composition used in it is Carbon max 0.22%, Manganese from 0.50% to 1.10%, Sulfur max 0.035%, Phosphorus max 0.04%, Silicon max 0.45%.

 

CHEMICAL COMPOSITION
Mass fraction, based upon heat and product analysis % maximum CARBON EQUIVALENT a









% MAXIMUM
Cb Si Mnb P S V Nb Ti Other CEIIW CEPcm
SEAMLESS & WELDED PIPES
0.24 0.45 1.4 0.03 0.02 0.10 f 0.05 0.04 d,e 0.43 0.25
0.18 0.45 1.5 0.03 0.02 0.07 0.05 0.04 d,e 0.43 0.25
WELDED PIPE
0.22 0.45 1.4 0.03 0.02 d d d e 0.43 0.25
a Based upon product analysis. For seamless pipe with t>20.0 mm (0.787 in), the carbon equivalent limits shall be as agreed. The CELLW limits apply if the carbon mass fraction is greater than 0.12% and the CEpcm limits apply if the carbon mass fraction is less than or equal to 0.12%.
b For each reduction of 0.01% below the specified maximum for carbon, an increase of 0.05% above the specified maximum for manganese is permissible, up to a maximum of 1.65% for grades = L245 or B
d the sum of the niobium & vanadium & titanium concentrations shall be =0.15%
e Unless otherwise agreed, 0.50% maximum for copper, 0.30% maximum for nickel, 0.30% maximum for chromium, & 0.15% maximum for molybdenum.
f Unless otherwise agreed
CEIIW C+(Mn/6)+(Cu+Ni/15)+(Cr+Mo+V/5)
CEPcm C+(Si/30)+(Mn/20)+(Cu/20)+(Ni/60)+(Cr/20)+(Mo/15)+(V/10)+5B

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API 5L 450 OR X 65 Tubes

API 5L 450 OR X 65 is one mainly of Steel for large diameter pipes, API-5L X65 steel pipes/plate is a higher strength, tough, wieldable steel for applications in the oil and gas industry. This Steel meets fully the mechanical property requirements of the API 5L X65 line pipe specifications which will maintain a high degree of toughness and weld ability. They contain carbon with 0.12% and are used in chemical composition.

 

CHEMICAL COMPOSITION
Mass fraction, based upon heat and product analysis % maximum
Cb Si Mnb P S V Nb
SEAMLESS & WELDED PIPES
0.18f 0.45f 1.7f 0.03 0.02 g g
WELDED PIPE
0.12f 0.45f 1.6f 0.03 0.02 g g
a Based upon product analysis. For seamless pipe with t>20.0 mm (0.787 in), the carbon equivalent limits shall be as agreed. The CELLW limits apply if the carbon mass fraction is greater than 0.12% and the CEpcm limits apply if the carbon mass fraction is less than or equal to 0.12%.
b For each reduction of 0.01% below the specified maximum for carbon, an increase of 0.05% above the specified maximum for manganese is permissible, up to a maximum of 1.65% for grades = L245 or B
f Unless otherwise agreed
g Unless otherwise agreed the sum of the niobium, vanadium & titanium concentrations shall be =0.15%
h Unless otherwise agreed, 0.50% maximum for copper, 0.50% maximum for nickel, 0.50% maximum for chromium, & 0.50% maximum for molybdenum.
CEIIW C+(Mn/6)+(Cu+Ni/15)+(Cr+Mo+V/5)
CEPcm C+(Si/30)+(Mn/20)+(Cu/20)+(Ni/60)+(Cr/20)+(Mo/15)+(V/10)+5B

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API 5L 485 OR X70 Pipes

API 5L 485 OR X70 is the one mainly of Steel for large diameter pipes. It is manufactured as per ASTM standards. In this the chemical composition contains mass friction which is based up on heat and product analysis. It is having the welded property which can be molded as per requirements. It is also having some mechanical requirements. It is utilized in low temperature. It is used in chemical industry.

 

CHEMICAL COMPOSITION
Mass fraction, based upon heat and product analysis % maximum CARBON EQUIVALENT a









% MAXIMUM
Cb Si Mnb P S V Nb Ti Other CEIIW CEPcm
SEAMLESS & WELDED PIPES
0.18f 0.45f 1.8f 0.03 0.02 g g g h 0.43 0.25
WELDED PIPE
0.12f 0.45f 1.7f 0.03 0.02 g g g h 0.43f 0.25
a Based upon product analysis. For seamless pipe with t>20.0 mm (0.787 in), the carbon equivalent limits shall be as agreed. The CELLW limits apply if the carbon mass fraction is greater than 0.12% and the CEpcm limits apply if the carbon mass fraction is less than or equal to 0.12%.
b For each reduction of 0.01% below the specified maximum for carbon, an increase of 0.05% above the specified maximum for manganese is permissible, up to a maximum of 1.65% for grades = L245 or B
f Unless otherwise agreed
g Unless otherwise agreed the sum of the niobium, vanadium & titanium concentrations shall be =0.15%
h Unless otherwise agreed, 0.50% maximum for copper, 0.50% maximum for nickel, 0.50% maximum for chromium, & 0.50% maximum for molybdenum.
CEIIW C+(Mn/6)+(Cu+Ni/15)+(Cr+Mo+V/5)
CEPcm C+(Si/30)+(Mn/20)+(Cu/20)+(Ni/60)+(Cr/20)+(Mo/15)+(V/10)+5B

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API 5L 245 OR GR.B Pipes

API 5L 245 OR GR.B is the standard carbon steel property used to manufacture pipes and tubes in a large diameter. These pipes and tubes are used for chemical industry as pipelines and other purpose. These are utilized in low temperature and these are to be maintained in bulky space. In this the chemical composition is based upon heat and product analysis. It is of the grade B standard.

 

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.
0.28 1.20 - 0.030 0.030 c,d c,d d
WELDED PIPE
0.26 1.20 - 0.030 0.030 c,d c,d d
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.
c Unless otherwise agreed, the sum of the niobium and vanadium contents shall be = 0.06%.
d The sum of the 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
245(35 500) 415(60 200) 28% 415 (60 200)
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)



Other Information
  • Packaging Details: 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. 0.28 1.20 - 0.030 0.030 c,d c,d d WELDED PIPE 0.26 1.20 - 0.030 0.030 c,d c,d d 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. c Unless otherwise agreed, the sum of the niobium and