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Application of API 5L X42-X80 / X52, PSL1&PSL2 Oil and Gas Carbon Seamless Steel Pipe

API 5L X42-X80, PSL1&PSL2 Oil and Gas Carbon Seamless Steel Pipe is used for conveying gas,water,and petroleum of both the oil and natural gas industries. API 5L X52 PSL1&PSL2 Oil and Gas Carbon Seamless Steel Pipe is largely used for conveying gas and petroleum of both the oil and natural gas industries.

Details of API 5L X42-X80 / X52, PSL1&PSL2 Oil and Gas Carbon Seamless Steel Pipe

Manufacture:Seamless process ,cold drawn or hot rolled Cold drawn: O.D.: 15.0～100mm W.T.: 2～10mm Hot rolled : O.D.: 25~700mm W.T.: 3~50mm Length: 6M or specified length as required. Ends: Plain End, Beveled End, Threaded

Manufacturing Process of API 5L X42-X80 / X52, PSL1&PSL2 Oil and Gas Carbon Seamless Steel Pipe:

API 5L X42-X80, PSL1&PSL2 Oil and Gas Carbon Seamless Steel Pipe are made either by cold-drawn or hot rolled, as required by the customers. API 5L X52 PSL1&PSL2 Oil and Gas Carbon Seamless Steel Pipe are made either by cold-drawn or hot rolled, normally small sizes ones by cold-drawn and big sizes by hot rolled.

Chemical Composition of API 5L X42-X80/X52, PSL1 Oil and Gas Carbon Seamless Steel Pipe

Grade and Chemical Composition (％) For API 5L PSL1

Standard	Grade	Chemical composition(%)
Standard	Grade	C	Mn	P	S
API 5L	X42	≤0.28	≤1.30	≤0.030	≤0.030
	X46,X52，X56	≤0.28	≤1.40	≤0.030	≤0.030
	X60,X65	≤0.28	≤1.40	≤0.030	≤0.030
	X70	≤0.28	≤1.40	≤0.030	≤0.030
	X52	≤0.28	≤1.40	≤0.030	≤0.030

Chemical Composition of API 5L X42-X80/X52, PSL2 Oil and Gas Carbon Seamless Steel Pipe

Grade and Chemical Composition (％) For API 5L PSL2

Standard	Grade	Chemical composition(%)
Standard	Grade	C	Mn	P	S
API 5L	X42	≤0.24	≤1.30	≤0.025	≤0.015
	X46,X52，X56	≤0.24	≤1.40	≤0.025	≤0.015
	X60,X65	≤0.24	≤1.40	≤0.025	≤0.015
	X70,X80	≤0.24	≤1.40	≤0.025	≤0.015
	X52	≤0.24	≤1.40	≤0.025	≤0.015

Tolerance for Diameters of Pipe Body

Size	Tolerance (with respect to specified outside diameter)
<2 3/8	+ 0.016 in., - 0.031 in. (+ 0.41 mm, - 0.79 mm)
> 2 3/8 and ≤4 1/2, continuous welded	±1.00%
> 2 3/8 and < 20	±0.75%
> 20. seamless	± 1.00%
>20 and <36, welded	+ 0.75%.-0.25%
> 36, welded	+ 1/4 in.. - 1/8 in. (+ 6.35 mm, -3.20 mm)

ln the case of pipe hydro-statically tested to pressures in excess of standard test pressures, other tolerances may be agreed upon between the manufacturer and the purchaser.

Tolerance for Diameter at Pipe Ends

Size	Minus Tolerance	Plus Tolerance	End-to-End Tolerance	Out-of-Roundness
Size	Minus Tolerance	Plus Tolerance	End-to-End Tolerance	Diameter,Axis Tolerance (Percent of Specified OD)	Maximum Differential Between Minimum and Maximum Diameters (Applies Only to Pipe With D/t≤ 75)
≤10 3/4 l&V4	1/64(0.40mm)	1/16(1.59mm) mm)	—	—
>10 3/4 and ≤20	1/32 (0.79 mm)	3/32 (2.38 mm)	—	—	—
> 20 and≤ 42	1/32 (0.79 mm)	3/32(2.38 mm)	b	± 1%	<0.500 in. (12,7 mm)
>42	1/32 (0.79 mm)	3/32 (2.38 mm)	b	± 1%	£ Q625 in. (15.9 mm)

Out-of-roundness tolerances apply to maximum and minimum diameters as measured with a bar gauge, caliper, or device measuring actual maximum and minimum diameters.

The average diameter (as measured with a diameter tape) of one end of pipe shall not differ by more than 3/32 in. (2.38 mm) from that of the other end.

Mechanical Tests for API 5L PSL1&PSL2 Grade X42 ERW Carbon Steel Welded Pipe:

Tensile testing of the pipe body—The tensile test should be carried out in accordance with ISO6892 or ASTM A370.Longitudinal samples should be used.Twice per test unit of pipe with the same cold-expansion ratio a.b.d. flattening Test—One flattening test shall be made on specimens from each end of two tubes selected from each lot CVN impact test—The Charpy test should be carried out in accordance with ASTM A370. Twice per test unit of not more than 100 lengths of pipe with the same cold-expansion ratio a.b.d. Hardness Test—When suspected hard spots are detected by visual inspection, hardness tests shall be carried out in accordance with ISO 6506, ISO 6507, ISO 6508 or ASTM A 370 using portable hardness test equipment and methods complying with ASTM A 956, ASTM A 1038 or ASTM E 110 respectively depending on the method Used.

Hydro-static Test—Each tube shall be subjected to the hydro-static pressure test

Bending Test— a sufficient length of pipe shall stand being bent cold through 90° around a cylindrical mandrel. 100% X-ray test for the weld seam

The ultrasonic testing

The eddy current examination

Tolerances for Wall Thickness

Size	Type of Pipe	Tolerance¹ (Percent of Specified Wall Thickness}
Size	Type of Pipe	Grade B or Lower	Grade X42 or Higher
<2 7/8	All	+20.- 12.5	+ 15.0.-12.5
>2 7/8and<20	All	+ 15,0,-12.5	+ 15-I2.5
>20	Welded	+ 17.5.-12.5	+ 19.5.-8.0
>20	Seamless	+ 15.0.-12.5	+ 17.5.-10,0

Where negative tolerances smaller than those listed are specified by the purchaser, the positive tolerance shall be increased to the applicable total tolerance range in percent less the wall thickness negative tolerance.

Tolerance for Weight

Quantity

Tolerance (percent)

Single lengths, special plain-end pipe or A25 pipeSingle lengths, other pipe Carloads.GradeA25,40,000lb(18 144kg)or more Carloads, other than Grade A25,40.0001b (18 144 kg) or more Carloads, all grades less than 40000 lb (18 144 kg) Order items. Grade A25. 40.000 lb (18 144 kg) or more Order items, other than Grade A25,40,000 lb (18 144 kg) or more Order items, all grades, less than 40.000 lb (18 144 kg)

+ 10.-5.0

+ 10,- 35

-2.5

-1.75

-15

-3.5

-1.75

-3.5

Notes: 1.Weight tolerances apply to the calculated weights for threaded-and-coupled pipe and to the tabulated or calculated weights for plain-end pipe. Where negative wall thickness tolerances smaller than those listed in above table are specified by the purchaser, the plus weight tolerance for single lengths shall be increased to 22.5 percent less the wail thickness negative tolerance. 2.For carloads composed of pipe from more than one order item, the carload tolerances are to be applied on an individual order item basis. 3. The tolerance for order items apply to the overall quantity of pipe shipped for the order item.

Mechanical Properties of API 5L X42-X80/X52, PSL1&PSL2 Oil and Gas Carbon Seamless Steel Pipe

Mechanical Properties of API 5L GR.B X42-X80/X52 (PSL1)：

Grade	Yield Strength(MPa)		Tensile Strength(MPa)		Elongation A%
	psi	MPa	psi	MPa	Elongation (Min )
X42	42,000	290	60,000	414	21~27
X46	46,000	317	63,000	434	20~26
X52	52,000	359	66,000	455	20~24
X56	56,000	386	71,000	490
X60	60,000	414	75,000	517
X65	65,000	448	77,000	531
X70	70,000	483	82,000	565
X52	52,000	359	66,000	455	20~24

Mechanical Properties of API 5L/X52 GR.B Seamless Line Pipe (PSL2)：

Grade	Yield Strength(MPa)		Tensile Strength(MPa)		Elongation A%	Impact (J)
	psi	MPa	psi	MPa	Elongation (Min )	Min
X42	290	496	414	758	21~27	41(27)
X46	317	524	434	758	20~26	41(27)
X52	359	531	455	758	20~24	41(27)
X56	386	544	490	758
X60	414	565	517	758
X65	448	600	531	758
X70	483	621	565	758
X80	552	690	621	827
X52	359	531	455	758	20~24	41(27)

Appearance for API 5L PSL1&PSL2 Grade X42 ERW Carbon Steel Welded Pipe:

A sufficient number of visual surface imperfections to provide seasonable assurance is necessarily. The defect shall be removed or cut off within the limits of requirements on length . The finished pipe shall be reasonably straight.

Marking for API 5L PSL1&PSL2 Grade X42 ERW Carbon Steel Welded Pipe:

Manufacturer's name or mark
Specification number(year-date or required)
Size( OD, W.T, length)
Grade( A or B)
Type of pipe( F, E, or S)
Test pressure( seamless steel pipe only)
Heat Number
Any additional information specified in the purchase order.

Packing for API 5L PSL1&PSL2 Grade X42 ERW Carbon Steel Welded Pipe:

Bare pipe or Black / Varnish coating ( according to customer's requirements); 6" and below in bundles with two cotton slings; Both ends with end protectors; Plain end, bevel end(2" and above with bevel ends, degree: 30~35°), threaded and coupling; Marking.

Eva
Email:eva@botopsteel.com.
Whatsapp:008615350775582
Wechat:15350775582
www.botopsteelpipe.com

API 5L X42-X80/ API 5L X52 / PSL1&PSL2 Oil and Gas Carbon Seamless Steel Pipe

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