Wholesale ASTM API 5L Round Black Seamless & Welded Steel Pipe Manufacturer and Supplier

ASTM API 5L Round Black Seamless & Welded Steel Pipe

Short Description:

API 5L pipe is a carbon steel pipe used for oil and gas transportation. It includes seamless pipe and welded pipe (ERW, SAW). Steel grades include API 5L Grade B, X42, X46, X52, X56, X60, X65, X70, X80, PSL1, and PSL2.

Usage: API 5L Pipe

Surface: Black

Grades: API 5L Grade B, X42, X52, X56, X60, X65, X70, X80

Outer Diameter Range: 1/2” to 2”, 3”, 4”, 6”, 8”, 10”, 12”, 16 inches, 18 inches, 20 inches, 24 inches up to 40 inches

Delivery Time: 15-30 days (according to the actual tonnage)

FOB Port: Tianjin Port/Shanghai Port

Send email to us Whatsapp Email

Product Detail

Product Tags

Product Detail

Grades	API 5L Grade B, X42, X52, X56, X60, X65, X70, X80
Specification Level	PSL1, PSL2
Outer Diameter Range	1/2” to 2”, 3”, 4”, 6”, 8”, 10”, 12”, 16 inches, 18 inches, 20 inches, 24 inches up to 40 inches.
Thickness Schedule	SCH 10. SCH 20, SCH 40, SCH STD, SCH 80, SCH XS, to SCH 160
Manufacturing Types	Seamless (Hot Rolled and Cold Rolled), Welded ERW (Electric resistance welded), SAW (Submerged Arc Welded) in LSAW, DSAW, SSAW, HSAW
Ends Type	Beveled ends, Plain ends
Length Range	SRL (Single Random Length), DRL (Double Random Length), 20 FT (6 meters), 40FT (12 meters) or, customized
Protection Caps	plastic or iron
Surface Treatment	Natural, Varnished, Black Painting, FBE, 3PE (3LPE), 3PP, CWC (Concrete Weight Coated) CRA Clad or Lined

API 5L pipe refers to carbon steel pipe used in oil and gas transmission systems. It is also used to transport other fluids such as steam, water, and mud.

Manufacturing Types

The API 5L specification covers both welded and seamless fabrication types.

Welded Types: ERW, SAW, DSAW, LSAW, SSAW, HSAW Pipe

Common types of API 5L welded pipe are as follows:

ERW: Electric resistance welding, typically used for pipe diameters less than 24 inches.

DSAW/SAW: Double-sided submerged arc welding/submerged arc welding, an alternative welding method to ERW used for larger diameter pipes.

LSAW: Longitudinal submerged arc welding, used for pipe diameters up to 48 inches. Also known as the JCOE fabrication process.

SSAW/HSAW: Spiral submerged arc welding/spiral submerged arc welding, used for pipe diameters up to 100 inches.

Contact Us to Learn the Differences Between ERW, LSAW, and SSAW pipe.

Seamless Pipe Types: Hot-rolled Seamless Pipe and Cold-rolled Seamless Pipe

Seamless pipe is typically used for small diameter pipes (typically less than 24 inches).

(Seamless steel pipe is more commonly used than welded pipe for pipe diameters less than 150 mm (6 inches).

We also offer large diameter seamless pipe. Using a hot-rolled manufacturing process, we can produce seamless pipe up to 20 inches (508 mm) in diameter. If you require seamless pipe larger than 20 inches in diameter, we can produce it using a hot-expanded process up to 40 inches (1016 mm) in diameter.

API 5L Pipe Grade

API 5L covers Grade B, X42, X46, X52, X56, X60, X65, X70, and X80.

API 5L steel pipe utilizes various steel grades, including Grade B, X42, X46, X52, X56, X60, X65, X70, and X80. As the steel grade increases, the carbon equivalent control becomes stricter and the mechanical strength properties become higher.

In addition, the chemical composition of API 5L seamless and welded pipes of the same steel grade differs, with welded pipes having more stringent requirements and lower carbon and sulfur contents.

Chemical requirements

Chemical Composition for PSL 1 pipe with t ≤ 0.984”
Steel Grade	Mass fraction, % based on heat and product analyses a,g
	C	Mn	P	S	V	Nb	Ti
	max b	max b	max	max	max	max	max
Seamless Pipe
A	0.22	0.9	0.03	0.03	–	–	–
B	0.28	1.2	0.03	0.03	c,d	c,d	d
X42	0.28	1.3	0.03	0.03	d	d	d
X46	0.28	1.4	0.03	0.03	d	d	d
X52	0.28	1.4	0.03	0.03	d	d	d
X56	0.28	1.4	0.03	0.03	d	d	d
X60	0.28 e	1.40 e	0.03	0.03	f	f	f
X65	0.28 e	1.40 e	0.03	0.03	f	f	f
X70	0.28 e	1.40 e	0.03	0.03	f	f	f
Welded Pipe
A	0.22	0.9	0.03	0.03	–	–	–
B	0.26	1.2	0.03	0.03	c,d	c,d	d
X42	0.26	1.3	0.03	0.03	d	d	d
X46	0.26	1.4	0.03	0.03	d	d	d
X52	0.26	1.4	0.03	0.03	d	d	d
X56	0.26	1.4	0.03	0.03	d	d	d
X60	0.26 e	1.40 e	0.03	0.03	f	f	f
X65	0.26 e	1.45 e	0.03	0.03	f	f	f
X70	0.26e	1.65 e	0.03	0.03	f	f	f
a. Cu ≤ = 0.50% Ni; ≤ 0.50%; Cr ≤ 0.50%; and Mo ≤ 0.15%,
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 Mn 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 NB + V ≤ 0.06%,
d. Nb + V + TI ≤ 0.15%,
e. Unless otherwise agreed.,
f. Unless otherwise agreed, NB + V = Ti ≤ 0.15%,
g. No deliberate addition of B is permitted and the residual B ≤ 0.001%

Chemical requirements

Chemical Composition for PSL 2 pipe with t ≤ 0.984”

Steel Grade

Mass fraction, % based on heat and product analyses

Carbon Equiv a

Other

CE IIW

CE Pcm

max b

max

max b

max

Seamless and Welded Pipe
BR	0.24	0.4	1.2	0.025	0.015	c	c	0.04	e,l	0.43	0.25
X42R	0.24	0.4	1.2	0.025	0.015	0.06	0.05	0.04	e,l	0.43	0.25
BN	0.24	0.4	1.2	0.025	0.015	c	c	0.04	e,l	0.43	0.25
X42N	0.24	0.4	1.2	0.025	0.015	0.06	0.05	0.04	e,l	0.43	0.25
X46N	0.24	0.4	1.4	0.025	0.015	0.07	0.05	0.04	d,e,l	0.43	0.25
X52N	0.24	0.45	1.4	0.025	0.015	0.1	0.05	0.04	d,e,l	0.43	0.25
X56N	0.24	0.45	1.4	0.025	0.015	0.10f	0.05	0.04	d,e,l	0.43	0.25
X60N	0.24f	0.45f	1.40f	0.025	0.015	0.10f	0.05f	0.04f	g,h,l	As agreed
BQ	0.18	0.45	1.4	0.025	0.015	0.05	0.05	0.04	e,l	0.43	0.25
X42Q	0.18	0.45	1.4	0.025	0.015	0.05	0.05	0.04	e,l	0.43	0.25
X46Q	0.18	0.45	1.4	0.025	0.015	0.05	0.05	0.04	e,l	0.43	0.25
X52Q	0.18	0.45	1.5	0.025	0.015	0.05	0.05	0.04	e,l	0.43	0.25
X56Q	0.18	0.45f	1.5	0.025	0.015	0.07	0.05	0.04	e,l	0.43	0.25
X60Q	0.18f	0.45f	1.70f	0.025	0.015	g	g	g	h,l	0.43	0.25
X65Q	0.18f	0.45f	1.70f	0.025	0.015	g	g	g	h,l	0.43	0.25
X70Q	0.18f	0.45f	1.80f	0.025	0.015	g	g	g	h,l	0.43	0.25
X80Q	0.18f	0.45f	1.90f	0.025	0.015	g	g	g	i,j	As agreed
X90Q	0.16f	0.45f	1.9	0.02	0.01	g	g	g	j,k	As agreed
X100Q	0.16f	0.45f	1.9	0.02	0.01	g	g	g	j,k	As agreed

Welded Pipe
BM	0.22	0.45	1.2	0.025	0.015	0.05	0.05	0.04	e,l	0.43	0.25
X42M	0.22	0.45	1.3	0.025	0.015	0.05	0.05	0.04	e,l	0.43	0.25
X46M	0.22	0.45	1.3	0.025	0.015	0.05	0.05	0.04	e,l	0.43	0.25
X52M	0.22	0.45	1.4	0.025	0.015	d	d	d	e,l	0.43	0.25
X56M	0.22	0.45f	1.4	0.025	0.015	d	d	d	e,l	0.43	0.25
X60M	0.12f	0.45f	1.60f	0.025	0.015	g	g	g	h,l	0.43	0.25
X65M	0.12f	0.45f	1.60f	0.025	0.015	g	g	g	h,l	0.43	0.25
X70M	0.12f	0.45f	1.70f	0.025	0.015	g	g	g	h,l	0.43	0.25
X80M	0.12f	0.45f	1.85f	0.025	0.015	g	g	g	i,j	.043f	0.25
X90M	0.1	0.55f	2.10f	0.02	0.01	g	g	g	i,j	–	0.25
X100M	0.1	0.55f	2.10f	0.02	0.01	g	g	g	i,j	–	0.25
a. SMLS t>0.787”, CE limits shall be as agreed. The CEIIW limits applied fi C > 0.12% and the CEPcm limits apply if C ≤ 0.12%,
b. For each reduction of 0.01% below the specified maximum for C, an increase of 0.05% above the specified maximum for Mn 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; up to a maximum of 2.00% for grades ≥ L485 or X70, but ≤ L555 or X80; and up to a maximum of 2.20% for grades > L555 or X80.,
c. Unless otherwise agreed Nb = V ≤ 0.06%,
d. Nb = V = Ti ≤ 0.15%,
e. Unless otherwise agreed, Cu ≤ 0.50%; Ni ≤ 0.30% Cr ≤ 0.30% and Mo ≤ 0.15%,
f. Unless otherwise agreed,
g. Unless otherwise agreed, Nb + V + Ti ≤ 0.15%,
h. Unless otherwise agreed, Cu ≤ 0.50% Ni ≤ 0.50% Cr ≤ 0.50% and MO ≤ 0.50%,
i. Unless otherwise agreed, Cu ≤ 0.50% Ni ≤ 1.00% Cr ≤ 0.50% and MO ≤ 0.50%,
j. B ≤ 0.004%,
k. Unless otherwise agreed, Cu ≤ 0.50% Ni ≤ 1.00% Cr ≤ 0.55% and MO ≤ 0.80%,
l. For all PSL 2 pipe grades except those grades with footnotes j noted, the following applies. Unless otherwise agreed no intentional addition of B is permitted and residual B ≤ 0.001%.

Delivery Conditions

PSL	Delivery Condition	Pipe grade
PSL1	As-rolled, normalized, normalizing formed	A
	As-rolled, normalizing rolled, thermomechanical rolled, thermo-mechanical formed, normalizing formed, normalized, normalized and tempered or if agreed Q&T SMLS only	B
	As-rolled, normalizing rolled, thermomechanical rolled, thermo-mechanical formed, normalizing formed, normalized, normalized and tempered	X42, X46, X52, X56, X60, X65, X70
PSL 2	As-rolled	BR, X42R
	Normalizing rolled, normalizing formed, normalized or normalized and tempered	BN, X42N, X46N, X52N, X56N, X60N
	Quenched and tempered	BQ, X42Q, X46Q, X56Q, X60Q, X65Q, X70Q, X80Q, X90Q, X100Q
	Thermomechanical rolled or thermomechanical formed	BM, X42M, X46M, X56M, X60M, X65M, X70M, X80M
	Thermomechanical rolled	X90M, X100M, X120M
	The suffice (R, N, Q or M) for PSL2 grades, belongs to the steel grade

Specification Level : PSL1 , PSL2

PSL stands for Product Specification Level, which includes PSL1 and PSL2. It can also be understood as a quality grade.

PSL1 and PSL2 differ not only in testing requirements but also in chemical composition and mechanical properties.

PSL2 has stricter requirements than PSL1 in terms of chemical composition, tensile properties, impact test, non-destructive testing, etc.

Impact Testing
PSL1 does not require impact testing, while PSL2 (except X80) does.

Non-destructive Testing
PSL1 does not require non-destructive testing, while PSL2 does.

(Non-destructive testing: Non-destructive testing and testing in the API 5L standard uses radiographic, ultrasonic, or other methods (without destroying the material) to detect defects and imperfections in pipelines.)

For more details, contact us to learn more about the differences between API 5L PSL1 and PSL2.

Packing and Transportation

Packaging is generally naked, steel wire binding, very strong.
If you have special requirements, you can use rust proof packaging, and more beautiful.

Precautions for packaging and transportation of carbon steel pipes
1.API 5L Steel Pipe must be protected from damage caused by collision, extrusion and cuts during transportation, storage and use.
2. When using carbon steel pipes, you should follow the corresponding safety operating procedures and pay attention to prevent explosions, fires, poisoning and other accidents.
3. During use, carbon steel API 5L Pipe should avoid contact with high temperatures, corrosive media, etc. If used in these environments, carbon steel pipes made of special materials such as high temperature resistance and corrosion resistance should be selected.
4. When selecting carbon steel pipes, carbon steel pipes of suitable materials and specifications should be selected based on comprehensive considerations such as the use environment, medium properties, pressure, temperature and other factors.
5. Before carbon steel pipes are used, necessary inspections and tests should be carried out to ensure that their quality meets the requirements.