API SPEC 5L specification provides standards for pipe suitable for use in conveying gas, water, and oil in the natural gas and oil industries. The API SPEC 5L covers seamless and welded steel line pipe. It 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.
Pipe manufactured to ASTM106 Grade A or B are not interchangeable with API 5L. Requirements to API 5L X grades are more stringent; rolled grades are not acceptable and rework is not allowed. Moreover, particular attention is given to toughness and toughness tests for sour services and higher pressure & temperature classes.

The technical committee authoring the standards recognized that there are two basic Product Specifications Levels (PSL) of technical requirements and therefore developed PSL 1 and PSL 2.  PSL 1 is a standard quality for line pipe where PSL 2 contains additional chemical, mechanical properties, and testing requirements.

Chemical Composition:

Standard Grade

Chemical Components (%)

C Si Mn P

S

API 5L PSL1 A 0.22 0.90 0.030 0.030
B 0.28 1.20 0.030 0.030
X42 0.28 1.30 0.030 0.030
X46 0.28 1.40 0.030 0.030
X52 0.28 1.40 0.030 0.030
X56 0.28 1.40 0.030 0.030
X60 0.28 1.40 0.030 0.030
X65 0.28 1.40 0.030 0.030
X70 0.28 1.40 0.030 0.030
API 5L PSL2 B 0.24 1.20 0.025 0.015
X42 0.24 1.30 0.025 0.015
X46 0.24 1.40 0.025 0.015
X52 0.24 1.40 0.025 0.015
X56 0.24 1.40 0.025 0.015
X60 0.24 1.40 0.025 0.015
X65 0.24 1.40 0.025 0.015
X70 0.24 1.40 0.025 0.015
X80 0.24 1.40 0.025 0.015

Mechanical Properties:

Standard Grade

Mechanical Properties

Tensile Strength (Mpa) Yield Strength (Mpa)
API 5L PSL1 A ≥331 ≥207
B ≥414 ≥241
X42 ≥414 ≥290
X46 ≥434 ≥317
X52 ≥455 ≥359
X56 ≥490 ≥386
X60 ≥517 ≥448
X65 ≥531 ≥448
X70 ≥565 ≥483
API 5L PSL2 B ≥414 ≥241
X42 ≥414 ≥290
X46 ≥434 ≥317
X52 ≥455 ≥359
X56 ≥490 ≥386
X60 ≥517 ≥414
X65 ≥531 ≥448
X70 ≥565 ≥483
X80 ≥621 ≥552

Tolerance:

Standard Out Diameter Wall Thickness
API 5L D<60.3 +0.41mm,-0.80mm +15.0%, -12.5%
D≥60.3 +0.75%D, -0.75%D +15.0%, -12.5%

 

Our Supply Range for sale:

Standard: API 5L

Grade: A, B, X42, X46, X52, X56, X60, X65, X70, X80

Range of out diameter (OD): 1/2”, 2”, …….to 24 inch.

Range of wall thickness (WT): SCH 10, SCH 20, SCH 40 ……to SCH 160

Range of length: 1 m up to 16m.

End Procession: plain end, Beveled, Threaded.

See also :

A106 Pipes

ASTM A106 High Temperature Pipe

A53 Pipes

ASTM A53 Welded And Seamless Pipes

API 5L Pipes

API 5L Seamless Pipes

Boiler steel Tubes

Boiler Steel Pipes & Tubes

Welded pipes

Welded Pipes (ERW, LSAW, SSAW)

JIS G3445

JIS G3445

JIS G3454, JIS G3455, JIS G3456

JIS G3454, JIS G3455, JIS G3456

JIS G3461, JIS G3462

JIS G3461, JIS G3462

High Pressure Boiler Tubes

High Pressure Boiler Tubes

ASTM A210 Boiler Tubes

ASTM A210 Boiler Tubes

ASTM A192 Boiler Tubes

ASTM A192 Boiler Tubes

ASTM A179 Boiler tubes

ASTM A179 Boiler tubes

ASTM A209 Boiler Tubes

ASTM A209 Boiler Tubes