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Scope

The American Petroleum Institute specification API 5L covers seamless and welded steel line pipe.

API 5L X Grades 42 through 80 are utilized for pipeline transportation systems in the water, petroleum and natural gas industries for conveying water, oil and gas. The two digit number following the "X" indicates the Minimum Yield Strength (in 000's psi) of pipe produced to this grade.

SIZES

Seamless: ½" Nominal to 24" O.D. / Wall Thickness: Schedules 10 through XXH Welded: ¾" nominal to 60" O.D. / Wall thickness: Up to 4.000" (ERW, EFW & SAW)

SPECIFICATIONS & GRADES

High-Yield Carbon Steel Seamless Pipe: API 5L B, X42, X52, X60, X65, X70 PSL1 & PSL2

Welded Pipes: A672 in all grades

FLANGES & FITTINGS

High-Yield Butt-Weld Fittings: A860 or MSS SP75 WPHY (Y42, Y52, Y60, Y65, Y70)

High-Yield Flanges: A694 (F42, F52, F60, F65, F70)

TENSILE REQUIREMENTS

API 5L PSL1

GRADE YIELD
MIN MAX
TENSILE
MIN MAX
B
35,000  
60,000  
X42
42,000  
60,000  
X52
52,000  
66,000  
X60
60,000  
75,000  
X65
65,000  
77,000  
X70
70,000  
82,000  

API 5L PSL2

GRADE YIELD
MIN MAX
TENSILE
MIN MAX
B
35,000 65,000
60,000 110,000
X42
42,000 72,000
60,000 110,000
X52
52,000 77,000
66,000 110,000
X60
60,000 82,000
75,000 110,000
X65
65,000 87,000
77,000 110,000
X70
70,000 90,000
82,000 110,000

The complex chemical and physical properties of the various grades of carbon steel pipe allows for a broad range of service usage. Multi Metals (India) has the right grade, size and price to meet your requirements including Carbon Steel A106 Grade B/C, Low-Temp Carbon Steel A333 Grade 3/6 and API 5L X42 through X80 & above

SIZES

Seamless: ½" Nominal to 24" O.D. / Wall Thickness: Schedules 10 through XXH Welded: ¾" nominal to 60" O.D. / Wall thickness: Up to 4.000" (ERW, EFW & SAW)

SPECIFICATIONS & GRADES

Carbon Steel Seamless Pipe: A106 B/C, A53 B

High-Yield Carbon Steel Seamless Pipe: API 5L B, X42, X52, X60, X65, X70 PSL1 & PSL2

Welded Pipes: A672 in all grades

Low-Temp Carbon Steel Seamless Pipe: A333 Gr. 1, 3 & 6 A671 CC65 CL22 EFW @ -50 F (Welded Alternative to A333)

FLANGES & FITTINGS

Carbon Steel Butt-Weld Fittings: A234 WPB, WPC

Carbon Steel Flanges: A105

High-Yield Butt-Weld Fittings: A860 or MSS SP75 WPHY (Y42, Y52, Y60, Y65, Y70)

High-Yield Flanges: A694 (F42, F52, F60, F65, F70)

Low-Temp Carbon Steel Flanges: A350 LF2, LF3

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 Atmospheric & Low Temp EFW Pipes
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

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