What is API 5L X42 equivalent

API 5L X42 equivalent materials primarily share its 290 MPa minimum yield strength (L290) and include ISO 3183 L290, EN 10208-2 L290NB, and CSA Z245.1 Grade 290, with ASTM A106 Grade B and A53 Grade B being similar in mechanical properties but often used for different applications, while Chinese GB/T 9711 L290 is also a direct match.

What is API 5L X42 material?

X42 steel pipe belongs to the pipeline steel pipe category of API 5L standard. In its naming, "X" represents pipeline steel, and "42" indicates a minimum yield strength of 42,000 psi (approximately 290 MPa). Actual test data shows that the Charpy impact energy of X42 steel pipe after normalizing can reach over 100 J (-20℃), far exceeding the 40 J standard of ordinary welded pipes, making it particularly suitable for oil and gas transportation in extremely cold regions.

What is the chemical composition of X42?

Chemical Composition of API 5L X42 PSL1 Seamless Pipe

Chemical Composition Of API 5L X42 PSL1 Seamless Pipe

What is api 5l x42 mechanical properties

api 5l x42 mechanical properties

Api 5l X42 Mechanical Properties

What is API 5L X42 Pipe Wall Thickness

NPS (in)	Outside Diameter (in)	API 5L X42 Seamless Pipes Schedule
		SCH 10	SCH 20	SCH 30	SCH STD	SCH 40	SCH 60	SCH XS	SCH 80	SCH 100	SCH 120	SCH 140	SCH 160	SCH XXS
		Wall Thickness (in)
1/8	0.405				0.068	0.068		0.095	0.095
1/4	0.540				0.088	0.088		0.119	0.119
3/8	0.675				0.091	0.091		0.126	0.126
1/2	0.840				0.109	0.109		0.147	0.147				0.187	0.294
3/4	1.050				0.113	0.113		0.154	0.154				0.219	0.308
1	1.315				0.133	0.133		0.179	0.179				0.250	0.358
1 1/4	1.660				0.140	0.140		0.191	0.191				0.250	0.382
1 1/2	1.900				0.145	0.145		0.200	0.200				0.281	0.400
2	2.375				0.154	0.154		0.218	0.218				0.344	0.436
2 1/2	2.875				0.203	0.203		0.276	0.276				0.375	0.552
3	3.500				0.216	0.216		0.300	0.300				0.438	0.600
3 1/2	4.000				0.226	0.226		0.318	0.318
4	4.500				0.237	0.237		0.337	0.337		0.438		0.531	0.674
5	5.563				0.258	0.258		0.375	0.375		0.500		0.625	0.750
6	6.625				0.280	0.280		0.432	0.432		0.562		0.719	0.864
8	8.625		0.250	0.277	0.322	0.322	0.406	0.500	0.500	0.594	0.719	0.812	0.906	0.875
10	10.750		0.250	0.307	0.365	0.365	0.500	0.500	0.594	0.719	0.844	1.000	1.125	1.000
12	12.750		0.250	0.330	0.375	0.406	0.562	0.500	0.688	0.844	1.000	1.125	1.312	1.000
14	14.000	0.250	0.312	0.375	0.375	0.438	0.594	0.500	0.750	0.938	1.094	1.250	1.406
16	16.000	0.250	0.312	0.375	0.375	0.500	0.656	0.500	0.844	1.031	1.219	1.438	1.594
18	18.000	0.250	0.312	0.438	0.375	0.562	0.750	0.500	0.938	1.156	1.375	1.562	1.781
20	20.000	0.250	0.375	0.500	0.375	0.594	0.812	0.500	1.031	1.281	1.500	1.750	1.969
22	22.000	0.250	0.375	0.500	0.375		0.875	0.500	1.125	1.375	1.625	1.875	2.125
24	24.000	0.250	0.375	0.562	0.375	0.688	0.969	0.500	1.219	1.531	1.812	2.062	2.344
30	30.000	0.312	0.500	0.625	0.375			0.500
32	32.000	0.312	0.500	0.625	0.375	0.688
34	34.000	0.312	0.500	0.625	0.375	0.688
36	36.000	0.312	0.500	0.625	0.375	0.750
42	42.000		0.500	0.625	0.375	0.750

What is the different between API 5L X42 and API 5L X56

API 5L X42 vs X56 Comparison Table

‌Parameter‌	‌API 5L X42 (L290)‌	‌API 5L X56 (L390)‌	‌Key Differences‌
‌Chemical Composition‌
C max	≤0.24%	≤0.26%	Higher C limit for X56
Mn	0.90–1.35%	≤1.40%	Broader Mn range for X56
S max	≤0.015%	≤0.030%	Stricter S control for X42
P max	≤0.015%	≤0.030%	Stricter P control for X42
‌Mechanical Properties‌
Yield Strength (MPa)	≥290	≥390	X56 strength 34% higher
Tensile Strength (MPa)	415–565	≥490	Higher lower limit for X56
CVN at 0°C (Longitudinal)	≥41J	≥27J	Better low-temp toughness for X42
CEIIW	≤0.43%*	≤0.45%*	Higher weld difficulty for X56
PCM	≤0.25%*	≤0.28%*	Increased cold cracking risk for X56

Who is the supplier of API 5L X42 line pipe

GNEE is the supplier of API 5L X42 line pipe in China.

API 5L X42 PSL1 PSL2 carbon steel seamless pipe and welded pipe factory

API 5L X42 PSL1 PSL2 line pipe factory