304L Stainless Steel Pipe Properties

ASTM A249/A269/A270/A312/A358/A778, EN 10357, DIN10217-7, DIN 11850, JIS G3463/G3459, ISO 2037, AS 1528.1 ……
DN6 - DN2000
1/8″ – 80″ ,
10.3mm - 2032mm
1mm - 60mm
SCH 5S - SCH XXS
Seamless , Welded(PLASMA+TIG)
Polishing, Annealing, Pickling, Bright
EN10204 3.1
ISO 9001:2015, PED 2014/68/EU, AD 2000-WO
Flange & Flaring Test,Reverse Flattening Test, Roughness Test, Hydrostatic/Pneumatic Test, Eddy Current Test (NDT), Surface Finish Verification, Dimensional Inspection, Material Certification

304L stainless steel pipe uses the low-carbon version of 304 and is commonly considered where welded fabrication and control of sensitization are important. This page focuses on 304L as a material grade; final suitability depends on the service medium, temperature, pressure, fabrication method, and applicable product standard.

For pipe ordered specifically to ASTM A312, use the ASTM A312 TP304L product page. To compare grade properties, see 304 stainless steel or browse all material grades. You can also send your technical requirements.

For a water-service grade comparison, read 304L vs 316L tubing selection factors. This guide does not replace the project engineer’s material assessment.

ANSI/ASME B36.19 DIMENSION

Nominal Size		OD	Wall Thickness, SCHEDULE
NPS	DN	mm	5S	10S	10	20	30	40S	STD	40	80S	XS	80	100	120	140	160	XXS
1∕8"	6	10.3		1.24				1.73	1.73	1.73	2.41	2.41	2.41
1∕4"	8	13.7		1.65				2.24	2.24	2.24	3.02	3.02	3.02
3∕8"	10	17.2		1.65				2.31	2.31	231	3.2	3.2	3.2
1∕2"	15	21.3	1.65	2.11				2.77	2.77	2.77	3.73	3.73	3.73				4.78	7.47
3∕4"	20	26.7	1.65	2.11				2.87	2.87	2.87	3.91	3.91	3.91				5.56	7.82
1"	25	33.4	1.65	2.77				3.38	3.38	3.38	4.55	4.55	4.55				6.35	9.09
1-1∕4"	32	42.2	1.65	2.77				3.56	3.56	3,56	4.85	4.85	4.85				6.35	9.7
1-1∕2"	40	48.3	1.65	2.77				3.68	3.68	3.68	5.08	5.08	5.08				7.14	10.15
2"	50	60.3	1.65	2.77				3.91	3.91	3.91	5.54	5.54	5.54				8.74	11.07
2-1∕2"	65	73	2.11	3.05				5.16	5.16	5.16	7.01	7.01	7.01				9.53	14.02
3"	80	88.9	2.11	3.05				5.49	5.49	5.49	7.62	7.62	7.62				11.13	15.24
3-1∕2"	90	101.6	2.11	3.05				5.74	5.74	5.74	8.08	8.08	8.08
4"	100	114.3	2.11	3.05				6.02	6.02	6.02	8.56	8.56	8.54		11.13		13.49	17.12
5"	125	141.3	2.77	3.4				6.55	6.55	6.55	9.53	9,53	9.53		12.7		15.88	19.05
6"	150	168.3	2.77	3.4				7.11	7.11	7.11	10.97	10.97	10.97		14.27		18.26	21.95
8"	200	219.1	2.77	3.76		6.35	7.04	8.18	8.18	8.18	12.7	12.7	12.7	15.09	18.26	20.62	23.01	22.23
10"	250	273.1	3.4	4.19		6.35	7.8	9.27	9.27	9.27	12.7	12.7	15.09	18.26	21.44	25.4	28.58	25.4
12"	300	323.9	3.96	4.57		6.35	8.38	9.53	9.53	10.31	12.7	12.7	17.48	21.44	25.4	28.58	33.32	25.4
14"	350	355.6	3.96	4.78	6.35	7.92	9.53		9.53	11.13		12.7	19.05	23.83	27.79	31.75	35.71
16"	400	406.4	4.19	4.78	6.35	7.92	9.53		9.53	12.7		12.7	21.44	26.19	30.95	36.53	40.49
18"	450	457.2	4.19	4.78	6.35	7.92	11.13		9.53	14.27		12.7	23.83	29.36	34.93	39,67	45.24
20"	500	508	4.78	5.54	6.35	9.53	12.7		9.53	15.09		12.7	26.19	32.54	38.1	44.45	50.01
22"	550	558.8	4.78	5.54	6.35	9.53	12.7		9.53			12.7	28.58	34.93	41.28	47.63	53.98
24"	600	609.6	5.54	6.35	6.35	9.53	14.27		9.53	17.48		12.7	30.96	38.89	46.02	52.37	59.54
26"	650	660.4			7.92	12.7			9.53			12.7
28"	700	711.2			7.92	12.7	15.88		9.53			12.7
30"	750	762	6.35	7.92	7.92	12.7	15.88		9.53			12.7
32"	800	812.8			7.92	12.7	15.88	17.48	9.53	17.48		12.7
34"	850	863.6			7.92	12.7	15.88	17.48	9.53	17.48		12.7
36"	900	914.4			7.92	12.7	15.88	19.05	9.53	19.05		12.7
38"	950	965.2						-	9.53			12.7
40"	1000	1016						-	9.53	12.7