Trade Name	API 5L X56 PSL2 Pipe
Weld Alternatives:	ERW, HF, DSAW/SAWL, SMLS, HSAW
OD Size Range:	ERW: 0.375″ through 30″
HF: 0.840″ through 24″
DSAW/SAWL: 12.75″ through 144″

SMLS: 0.840″ through 26″ HSAW: 8.625″ through 144″ | | Wall Ranges: | ERW: 0.120″ through 1.000″ HF: 0.120″ through 1.000″ DSAW/SAWL: 0.250″ through 6.000″

SMLS: 0.250″ through 2.500″ HSAW: 0.250″ through 1.000″ | | Lengths: | Single Random Double Random Custom (up to 300′) | | Grade: | ASTM A53, ASTM A106, ASTM A179, ASTM A192, ST35.8, ST37, ST42, ST52, E235, E355, S235JRH, S275JR, S355JOH, P235TR1, 10#, 20#, 45#, Q235, Q345 | | Schedule: | SCH5 SCH10 SCH20 SCH30 SCH40 SCH80 SCH120 SCH140 SCH160 SCHXS SCHXXS | | Surface Finishes: | Bare, Oiled, Mill Varnish, Galv, FBE, FBE Dual, 3LPE, 3LPP, Coal Tar, Concrete Coating and Tape Wrap. | | End Finishes: | Beveled, Square Cut, Threaded & Coupled. | | Additional Services: | Internal Coating |

API 5L X56	(PSL1)	(PSL2)
Minimum Yield Strength:	56,600 psi	56,600 psi
Maximum Yield Strength:	None	79,000 psi
Minimum Tensile Strength:	71,100 psi	71,100 psi
Maximum Tensile Strength:	None	110,200 psi
Notes: This is a standard line pipe grade specified in API (American Petroleum Institute) specification 5L.

| API 5L X56 Industry Specifications | Chemical Composition | Yield Strength min. (KSI) | Tensile Strength min. (KSI) | Yield to Tensile Ratio (max) | Elongation % | |---|---|---|---|---|---| | ASTM A105, A106, A234, A333, A350, A420, A694,A860 | C 0.16 Si 0.45 Mn 1.65 P 0.020 S 0.010 V 0.07 Nb 0.05 Ti 0.04 | 56 | 71 | 0.93 | 19 |

Production Standards & Material Qualities

| API 5L L245 / Gr. B (PSL 1) API 5L L290 / X42 (PSL 1) API 5L L245 / Gr. B (PSL 2) API 5L L290 / Gr. B (PSL 2) API 5L L320 / X46 (PSL 1) API 5L L320 / X46 (PSL 2) | API 5L L360 / X52 (PSL 1) API 5L L360 / X52 (PSL 2) API 5L L415 / X60 (PSL 1) API 5L L415 / X60 (PSL 2) API 5L L450 / X65 (PSL 1) API 5L L450 / X65 (PSL 2) | |---|---| | Line Pipe API 5L, PSL 1, PSL 2 CSA Z 245.1 EN ISO 3183 GOST 20295 | Gr A, X70-(N, M) Gr 241-Gr 359 L 245-L485 (N, M, NE, ME) K34-K60 |

Line pipe – types of steel

CHEMICAL COMPOSITION
Mass fraction, based upon heat and product analysis % maximum	CARBON EQUIVALENT a
% MAXIMUM
Cb	Si	Mnb	P	S	V	Nb	Ti	Other	CEIIW	CEPcm
SEAMLESS & WELDED PIPES
L290R OR X42R	0.24	0.4	1.2	0.025	0.015	0.06	0.05	0.04	e	0.43	0.25
L290Q OR X42Q	0.18	0.45	1.4	0.025	0.015	0.05	0.05	0.04	e	0.43	0.25
WELDED PIPE
L290M OR X42M	0.22	0.45	1.3	0.025	0.015	0.05	0.05	0.04	e	0.43	0.25

MECHANICAL REQUIREMENTS
Y.S	T.S	ELONGATION
Mpa (psi)	Mpa(psi)
min	min	min
290(42 100)	495(71 800)	f

Chemical Analysis(%) For Part Standard -PSL2

Standard	Class	Grade	C	Si	Mn	P	S	V	Nb	Ti
max	max	max	max	max	max	max	max
APL 5L
ISO 3181	PSL2	L245R or BR	0.24	0.40	1.20	0.025	0.015	d	d	0.04
L290R or X42R	0.24	0.40	1.20	0.025	0.015	0.06	0.05	0.04
L245N or BN	0.24	0.40	1.20	0.025	0.015	d	d	0.04
L290N or X42N	0.24	0.40	1.20	0.025	0.015	0.06	0.05	0.04
L320N or X46N	0.24	0.40	1.40	0.025	0.015	0.07	0.05	0.04
L360N or X52N	0.24	0.45	1.40	0.025	0.015	0.10	0.05	0.04
L390N or X56N	0.24	0.45	1.40	0.025	0.015	0.10	0.05	0.04
L415N or X60N	0.24	0.45	1.40	0.025	0.015	0.10	0.05	0.04
L245Q or BQ	0.18	0.45	1.40	0.025	0.015	0.05	0.05	0.04
L290Q or X42Q	0.18	0.45	1.40	0.025	0.015	0.05	0.05	0.04
L320Q or X46Q	0.18	0.45	1.40	0.025	0.015	0.05	0.05	0.04
L360Q or X52Q	0.18	0.45	1.50	0.025	0.015	0.05	0.05	0.04
L390Q or X56Q	0.18	0.45	1.50	0.025	0.015	0.07	0.05	0.04
L415Q or X60Q	0.18	0.45	1.70	0.025	0.015	c	c	c
L450Q or X65Q	0.18	0.45	1.70	0.025	0.015	c	c	c
L485Q or X70Q	0.18	0.45	1.80	0.025	0.015	c	c	c
L555Q or X80Q	0.18	0.45	1.90	0.025	0.015	c	c	c
L625Q or X90Q	0.16	0.45	1.90	0.020	0.010	c	c	c
L690Q or X100Q	0.16	0.45	1.90	0.020	0.010	c	c	c
L245M or BM	0.22	0.45	1.20	0.025	0.015	0.05	0.05	0.04
L290M or X42M	0.22	0.45	1.30	0.025	0.015	0.05	0.05	0.04
L320M or X46M	0.22	0.45	1.30	0.025	0.015	0.05	0.05	0.04
L360M or X52M	0.22	0.45	1.40	0.025	0.015	b	b	b
L390M or X56M	0.22	0.45	1.40	0.025	0.015	b	b	b
L415M or X60M	0.12	0.45	1.60	0.025	0.015	c	c	c
L450M or X65M	0.12	0.45	1.60	0.025	0.015	c	c	c
L485M or X70M	0.12	0.45	1.70	0.025	0.015	c	c	c
L555M or X80M	0.12	0.45	1.85	0.025	0.015	c	c	c
L625M or X90M	0.10	0.55	2.10	0.020	0.010	c	c	c
L690M or X100M	0.10	0.55	2.10	0.020	0.010	c	c	c

Mechanical Properties

| Standard | Class | Grade | Yield Strength MPa | Yield Strength MPa | Y.S/T.S | | | |---|---|---|---|---|---|---|---| | min | max | min | max | max | | | | | API 5L ISO3183 | PSL2 | L245R or BR L245N or BN L245Q or BQ L245M or BM | 245 | 450 | 415 | 655 | 0.93 | | L290R or X42R L290N or X42N L290Q or X42Q L290M or X42M | 290 | 495 | 415 | 655 | 0.93 | | | | L320N or X46N L320Q or X46Q L320M or X46M | 320 | 525 | 435 | 655 | 0.93 | | | | L360N or X52N L360Q or X52Q L360M or X52M | 360 | 530 | 460 | 760 | 0.93 | | | | L390N or X56N L390Q or X56Q L390M or X56M | 390 | 545 | 490 | 760 | 0.93 | | | | L415N or X60N L415Q or X60Q L415M or X60M | 415 | 565 | 520 | 760 | 0.93 | | | | L450Q or X65Q L450M or X65M | 450 | 600 | 535 | 760 | 0.93 | | | | L485Q or X70Q L485M or X70M | 485 | 635 | 570 | 760 | 0.93 | | | | L555Q or X80Q L555M or X80M | 555 | 705 | 625 | 825 | 0.93 | | | | L625M or X90M L625Q or X90Q | 625 | 775 | 695 | 915 | 0.95 | | | | L690M or X100M L690Q or X100Q | 690 | 840 | 760 | 990 | 0.97 | | |

Minimum Impact Energy

Specified Outside Diameter	Grade	Charp Imapct Test 0℃
Impact of Pipe Body	Impact of Weld
API 5L
ISO3183	D≤762mm	≤L485 or X70	27	27
L555 or X80	40	27
762mm< td="" style=“box-sizing: border-box;”><>	≤L555 or X80	40	27
1219mm< td="" style=“box-sizing: border-box;”><>	≤L415 or X60	40	27
>L415 or X60
≤L555 or X80	54	27
>1422mm	≤L415 or X60	40	40
>L415 or X60
≤L555 or X80	54	40

API 5L X56 PSL2 Pipe features:

API 5L X56 PSL2 Pipe – delivery condition and surface

API 5L X56 PSL2 Pipe – straightness

Ends of the API 5L X56 PSL2 Pipe

Marking of API 5L X56 PSL2 Pipe and tube bundles

API 5L X56 PSL2 Pipe – surface protection

CHEMICAL COMPOSITION
Mass fraction, based upon heat and product analysis % maximum	CARBON EQUIVALENT a
% MAXIMUM
Cb	Si	Mnb	P	S	V	Nb	Ti	Other	CEIIW	CEPcm
SEAMLESS & WELDED PIPES
L485Q or X70Q	0.18f	0.45f	1.8f	0.025	0.015	g	g	g	h	0.43	0.25
WELDED PIPE
L485M OR X70M	0.12f	0.45f	1.7f	0.025	0.015	g	g	g	h	0.43f	0.25

MECHANICAL REQUIREMENTS
Y.S	T.S	ELONGATION
Mpa(psi)	Mpa(psi)
min	min	min
485(70 300)	635(92 100)	f

IMPACT TEST
AVG. ABSORBED ENERGY	IND. ABSORBED ENERGY
Min.(joules)	Min.(joules)
27	20

API 5L X56 PSL 2