Extra-large & Extra-thick

International Standard
Material Grades
Outer Diameter
Wall Thickness
Tube Type
Mill Test Certificate(MTC)
Certificate

ASTM A312 , ASME SA312 , ASME B36.19
TP304/304L, TP316/316L, TP309/309S, TP310/310S, TP321/321H, TP347/347H, Duplex2205 / S31803
DN6 - DN2000
1/8″ – 80″
10.3mm - 2032mm
1mm - 60mm
SCH 5S - SCH XXS
Welded , Seamless
EN10204 3.1
ISO 9001:2015 , PED 2014/68/EU , AD 2000-WO

ASTM A312 Stainless Steel Pipe

ASTM A312 , ASME SA312 , ASME B36.19
TP304/304L, TP316/316L, TP309/309S, TP310/310S, TP321/321H, TP347/347H, Duplex2205 / S31803
DN6 - DN2000
1/8″ – 80″
10.3mm - 2032mm
1mm - 60mm
SCH 5S - SCH XXS
Welded , Seamless
ISO 9001:2015 , PED 2014/68/EU , AD 2000-WO

Stainless steel industrial pipes are essential for corrosive, high-pressure, and hygienic applications. They are used in oil & gas, chemical processing, food & beverage, and water treatment due to their rust resistance, strength, and cleanability.

ASTM A312 is the standard specification for seamless, welded, and heavily cold-worked austenitic stainless steel pipes used in high-temperature and corrosive service applications. It is one of the most widely used standards for industrial stainless steel piping.

ANSI/ASME B36.19 DIMENSION

ASTM A312 stainless steel pipe sizes and dimensions should conform to ANSI B36.19, nominal pipe size (NPS) ranges from NPS 1/8 [10.29 mm] to NPS 80 [2032 mm], Schedule number for wall thickness from Sch 5s to Sch xxs, more Pipe Schedule Sizes are specified for special applications, the value stated respectively for a specific size, average wall and minimum wall pipe are available.

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