Tianjin Brisk Metalwork Co., Ltd. is one of the leading manufacturers and suppliers of api 5l seamless carbon steel pipe in China. We have world-leading production equipment and strong manufacturing capabilities. Please feel free to buy bulk durable api 5l seamless carbon steel pipe from our factory.

Tianjin Brisk Metalwork Co.,Ltd is one of the manufacturers of API 5L Seamless Carbon Steel Pipe in China. Our products are mainly exported to the Middle East, Southeast Asia, Europe, New Zealand, and other regions.If you would like to learn more about our products, feel free to contact us and send your purchase list.

PRODUCTION

APL 5L SMLS Pipes

APL 5L SMLS Pipes

APL 5L SMLS Pipes

Delivery Condition

PSL

Delivery Condition

Pipe grade

PSL1

As-rolled, normalized, normalizing formed

As-rolled, normalizing rolled, thermomechanical rolled, thermo-mechanical formed, normalizing formed, n
ormalized, normalized and tempered or if agreed Q&T SMLS only

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

Chemical composition

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

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 Composition for PSL 2 pipe with t ≤ 0.984"

Steel Grade	Mass fraction, % based on heat and product analyses									Carbon Equiv ^a
	C	Si	Mn	P	S	V	Nb	Ti	Other	CE IIW	CE Pcm
	max ^b	max	max ^b	max	max	max	max	max		max	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	0.24^f	0.45^f	1.40^f	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

a. SMLS t>0.787", CE limits shall be as agreed. The CE IIW 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%.

Mechanical Properties

Pipe Grade	Tensile Properties – Pipe Body of SMLS and Welded Pipes PSL 1			Seam of Welded Pipe
	Yield Strength ^a	Tensile Strength ^a	Elongation	Tensile Strength ^b
	Rt0,5 PSI Min	Rm PSI Min	(in 2 in Af % min)	Rm PSI Min
A	30,500	48,600	c	48,600
B	35,500	60,200	c	60,200
X42	42,100	60,200	c	60,200
X46	46,400	63,100	c	63,100
X52	52,200	66,700	c	66,700
X56	56,600	71,100	c	71,100
X60	60,200	75,400	c	75,400
X65	65,300	77,500	c	77,500
X70	70,300	82,700	c	82,700
a. For intermediate grade, the difference between the specified minimum tensile strength and the specified minimum yield for the pipe body shall be as given for the next higher grade.

b. For the intermediate grades, the specified minimum tensile strength for the weld seam shall be the same as determined for the body using foot note a.

c. The specified minimum elongation, Af, expressed in percent and rounded to the nearest percent, shall be determined using the following equation:

Where C is 1940 for calculation using Si units and 625 000 for calculation using USC units
Axc is the applicable tensile test piece cross-sectional area, expressed in square millimeters (square inches) , as follows
– For circular cross-section test pieces, 130mm² (0.20 in²) for 12.7 mm (0.500 in) and 8.9 mm (0.350 in) diameter test pieces; and 65 mm² (0.10 in²) for 6.4 mm (0.250in) diameter test pieces.


– For full-section test pieces, the lesser of a) 485 mm² (0.75 in²) and b) the cross-sectional area of the test piece, derived using the specified outside diameter and the specified wall thickness of the pipe, rounded to the nearest 10 mm²(0.10in²)
– For strip test pieces, the lesser of a) 485 mm² (0.75 in²) and b) the cross-sectional area of the test piece, derived using the specified width of the test piece and the specified wall thickness of the pipe, rounded to the nearest 10 mm² (0.10in²)


U is the specified minimum tensile strength, expressed in megapascals (pounds per square inch)

Pipe Grade	Tensile Properties – Pipe Body of SMLS and Welded Pipes PSL 2						Seam of Welded Pipe
	Yield Strength a		Tensile Strength a		Ratio a,c	Elongation	Tensile Strength d
	Rt0,5 PSI Min		Rm PSI Min		R10,5IRm	(in 2in)	Rm (psi)
						Af %
	Min	Max	Min	Max	Max	Min	Min
BR, BN,BQ,BM	35,500	65,300	60,200	95,000	0.93	f	60,200
X42,X42R,X2Q,X42M	42,100	71,800	60,200	95,000	0.93	f	60,200
X46N,X46Q,X46M	46,400	76,100	63,100	95,000	0.93	f	63,100
X52N,X52Q,X52M	52,200	76,900	66,700	110,200	0.93	f	66,700
X56N,X56Q,X56M	56,600	79,000	71,100	110,200	0.93	f	71,100
X60N,X60Q,S60M	60,200	81,900	75,400	110,200	0.93	f	75,400
X65Q,X65M	65,300	87,000	77,600	110,200	0.93	f	76,600
X70Q,X65M	70,300	92,100	82,700	110,200	0.93	f	82,700
X80Q,X80M	80,.500	102,300	90,600	119,700	0.93	f	90,600
a. For intermediate grade, refer to the full API 5L specification.
b. for grades > X90 refer to the full API5L specification.
c. This limit applies for pies with D> 12.750 in
d. For intermediate grades, the specified minimum tensile strength for the weld seam shall be the same value as was determined for the pipe body using foot a.
e. for pipe requiring longitudinal testing, the maximum yield strength shall be ≤ 71,800 psi
f. The specified minimum elongation, Af, expressed in percent and rounded to the nearest percent, shall be determined using the following equation:

Where C is 1 940 for calculation using Si units and 625 000 for calculation using USC units
Axc is the applicable tensile test piece cross-sectional area, expressed in square millimeters (square inches) , as follows
– For circular cross-section test pieces, 130mm2 (0.20 in2) for 12.7 mm (0.500 in) and 8.9 mm (.350 in) diameter test pieces; and 65 mm2 (0.10 in2) for 6.4 mm (0.250in) diameter test pieces.

– For full-section test pieces, the lesser of a) 485 mm2 (0.75 in2) and b) the cross-sectional area of the test piece, derived using the specified outside diameter and the specified wall thickness of the pipe, rounded to the nearest 10 mm2 (0.10in2)

– For strip test pieces, the lesser of a) 485 mm2 (0.75 in2) and b) the cross-sectional area of the test piece, derived using the specified width of the test piece and the specified wall thickness of the pipe, rounded to the nearest 10 mm2 (0.10in2)

U is the specified minimum tensile strength, expressed in megapascals (pounds per square inch
g. Lower values fo R10,5IRm may be specified by agreement
h. for grades > x90 refer to the full API 5L specification.

Key Features & Benefits

Common Use and Product Specification Levels (PSL):

01.

common Uses:

API 5L is the American Petroleum Institute standard specification for seamless and welded steel line pipes used in the oil and gas industry for transporting petroleum and natural gas

Higher PSL levels and grades (e.g., X70 vs. Grade B) provide greater strength and toughness for demanding pipelines.
When ordering API 5L pipe, specifying the Grade, PSL level, manufacturing type, and service requirements (e.g., sour service) is crucial for ensuring the correct pipe is supplied for the application.

02.

Product Specification Levels (PSL):

PSL1: Basic level, suitable for conventional low-pressure, onshore pipelines; low cost and compatible with general engineering applications;

PSL2: Advanced level, with more stringent requirements for low-temperature impact toughness, welding performance, compositional uniformity, and non-destructive testing; suitable for critical applications such as high-pressure, low-temperature (e.g., cold regions/deep sea), highly corrosive, and long-distance main pipelines;