Stainless Steel 321 Pipes

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Stainless Steel 321 Pipes Manufacturer, Supplier and Exporter in Kolkata, India

Ojas Pipes and Tubes, a prominent manufacturer and supplier based in Kolkata, India, is dedicated to delivering top-notch Stainless Steel 321 Pipes to various industries both locally and internationally. Renowned for their unwavering commitment to quality craftsmanship, Ojas ensures that their products adhere to strict international standards while meeting the rigorous demands of industrial applications. Stainless Steel 321 Pipes are known for their exceptional resistance to intergranular corrosion and outstanding performance in high-temperature settings. With a solid reputation for timely deliveries, precise fabrication, and exceptional customer service, Ojas has earned the trust of clients in sectors like aerospace, chemical processing, and heat treatment.

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Stainless Steel 321 Pipes are made from titanium-stabilized austenitic stainless steel, featuring approximately 17–19% chromium, 9–12% nickel, and titanium (which is about five times the carbon content). The addition of titanium helps prevent the formation of chromium carbide, enhancing both weldability and corrosion resistance. Typically, these pipes exhibit mechanical properties such as a tensile strength of around 515 MPa, yield strength of about 205 MPa, and an elongation of roughly 40%. They maintain excellent toughness at both cryogenic and elevated temperatures, providing strong resistance to oxidation and creep, making them a reliable choice for high-temperature applications. Their durability and stability make them particularly popular in welded structures and thermal applications.

Stainless Steel 321 Pipes Specification

Pipe Standard	ASTM A312 ASME SA312 / ASTM A358 ASME SA358
Pipe Dimension	ANSI/ASME B36.19M, ANSI/ASME B36.10M
Pipe Sizes	1 / 2″ NB – 24″ NB
Pipe Outside Diameter	6.00 mm OD up to 914.4 mm OD, Sizes up to 24” NB available Ex-stock, OD Size Steel Tubes available Ex-stock
Steel Pipe Manufacturing Process	Seamless / Welded / ERW / Fabricated / CDW / 100% X Ray Welded
Stainless Steel Pipe Shapes	Hydraulic, Round, Rectangle, Square, Hex, Honed
Stainless Steel Pipe Schedule	SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
Pipe Ends	Half Hard, Soft, Hard, Quarter Hard, Spring Hard
Delivery Condition	Annealed and Pickled, Polished, Bright Annealed, Cold Drawn
Outside Finish	2B, No.4, No.1, No.8 Mirror Finish for Stainless Steel Pipes, Finish as per customer Requirements
Value Added Services	Cutting, Beveling, Polishing, Threading, Destructive, Non Destructive, Ultrasonic Testing

Stainless Steel 321 Pipes Chemical Composition

Grade	C	Mn	Si	P	S	Cr	N	Ni	Ti
SS 321	0.08 max	2.0 max	1.0 max	0.045 max	0.030 max	17.00 – 19.00	0.10 max	9.00 – 12.00	5(C+N) – 0.70 max

SS 321 Pipes Mechanical Properties

Density	Melting Point	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
8.0 g/cm3	1457 °C (2650 °F)	Psi – 75000 , MPa – 515	Psi – 30000 , MPa – 205	35 %

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We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.

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Why Choose Stainless Steel 321 Pipes from Ojas Pipes and Tubes?

Choosing Stainless Steel 321 Pipes from Ojas Pipes and Tubes offers corrosion resistance and excellent durability, ideal for harsh environments. Their pipes are precisely engineered for durability and reliability, conforming to stringent industry standards. Brydon offers solutions tailored to suit specific business requirements, backed by exceptional customer service. Furthermore, their commitment to quality ensures longevity and performance, making them a reliable choice for a variety of applications. Trust Brydon’s expertise in providing quality stainless steel for your needs.

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Largest Stainless Steel 321 Pipes Supplier in Kolkata, India

Ojas Pipes and Tubes, one of the largest suppliers of Stainless Steel 321 Pipes in Kolkata, India, offers a comprehensive range of high-quality pipes and tubes suitable for various industrial applications. Their extensive inventory and commitment to exceptional service make them a go-to choice for stainless steel products in the region.

Stainless Steel 321 Pipes Sizes in MM

Designation of Diameter		O/D	Nominal Wall Thickness
Designation of Diameter		DIA	SCH.5S		SCH.5		SCH 10S		SCH.10		SCH.20S		SCH.30		SCH.40S		SCH.40		SCH 60
(A)	(B)	Meter MM	Wall Thk	Weight Kg/Mtr	Wall Thk	Weight Kg/Mtr	Wall Thk	Weight Kg/Mtr	Wall Thk	Weight Kg/Mtr	Wall Thk	Weight Kg/Mtr	Wall Thk	Weight Kg/Mtr	Wall Thk	Weight Kg/Mtr	Wall Thk	Weight Kg/Mtr	Wall Thk	Weight Kg/Mtr
6	1/8	10.3	1	0.23			1.2	0.27			1.5	0.33			1.73	0.37
8	1/4	13.7	1.2	0.37			1.65	0.49			2	0.58			2.24	0.64
10	3/8	17.2	1.2	0.47			1.65	0.63			2	0.74			2.31	0.87
15	1/2	21.3	1.65	0.01	1.65	0.81	2.11	1.02	2.11	1.02	2.5	1.15			2.77	1.29
20	3/4	26.7	1.65	1.03	1.65	1.03	2.11	1.3	2.11	1.3	2.5	1.49			2.87	1.71
25	1	33.4	1.65	1.31	1.65	1.31	2.77	2.13	2.77	2.13	3	2.24			3.38	2.54
32	11/4	24.2	1.65	1.67	1.65	1.67	2.77	2.73	2.77	2.73	3	2.9			3.56	3.44
40	11/2	48.3	1.65	1.93	1.65	1.93	2.77	3.16	2.77	3.16	3	3.35			3.68	4.11
50	2	60.3	1.65	1.93	1.65	2.42	2.77	3.99	2.77	3.99	3.5	4.9			3.91	5.52
65	21/2	73	2.11	3.75	2.11	3.75	3.05	5.34	3.05	5.34	3.5	6			5.16	8.77
80	3	88.9	2.11	4.59	2.11	4.59	3.05	6.56	3.05	6.56	4	8.37			5.49	11.47
90	31/2	101.6	2.11	5.25	2.11	5.25	3.05	7.53	3.05	7.53	4	9.62			5.74	13.78
100	4	114.3	2.11	5.93	2.11	5.93	3.05	8.5	3.05	8.5	4.5	12.18			6.02	6.32
125	5	141.3	2.77	9.61	2.77	9.61	3.4	11.74	3.43	11.74	5	16.8			6.55	2210
150	6	168.3	2.77	11.47	2.77	11.47	3.4	14.04	3.43	14.04	5.5	22.08			7.11	28.69
200	8	219.1	2.77	15	2.77	15	3.76	20.77	3.76	20.27	6.35	33.82	7.04	37.38	8.18	43.2			10.81	53.9
250	10	273.1	3.4	22.95	3.4	22.95	4.19	28.2	4.19	28.2	6.35	42.41	7.8	51.81	9.27	61.22			12.2	82.8
300	12	323.9	3.96	31.72	4.19	33.6	4.57	36.54	4.57	36.54	6.35	50.48	8.38	66.2	9.53	75.01	10.31	80.94	14.27	110.62
350	14	355.6	3.96	34.86			4.78	41.99	6.35	55.53	7.92	68.95	9.53	82.58	9.53	82.58	11.13	96	15.06	128.42
400	16	406.4	4.19	42.2			4.78	48.07	6.35	63.61	7.92	79.03	9.53	94.7	9.53	94.7	12.7	125.2	16.66	162.59
450	18	457.2	4.19	47.46			4.78	54.15	6.35	71.69	7.92	89.1	11.13	124.32	9.53	106.83	14.27	158.27	19.05	209
500	2C	508	4.78	60.23			5.54	69.7	6.35	79.76	9.53	118.93	12.7	157.51	9.53	118.9	15.06	185.89	2062	251.65
550	22	558.8	4.78	65.95			5.54	76.75	6.35	87.84	9.53	131.07	12.7	173.66	9.53	131.07	15.88	216.04	22.23	298.55
600	24	609.6	5.54	83.8			6.35	95.92	6.35	95.92	9.53	143.2	14.27	212.72	9.53	143.2	17.45	258.74	24.59	360.21
650	26	660.4							7.92	129.4	12.7	205.97			9.53	155.32
700	28	711.2							7.92	139.47	12.7	222.13	15.88	276.48	9.53	167.44
750	3C	762	6.35	120.15			7.92	149.55	7.92	149.55	12.7	238.28	15.88	296.68	9.53	179.56
800	32	812.8							7.92	159.62	12.7	254.44	15.88	316.88	9.53	191.69	17.48	348.11
850	34	863.6							7.92	169.64	12.7	270.5	15.88	336.96	9.53	203.74	17.48	370.22
900	36	914.4							7.92	179.77	12.7	286.75	15.88	357.28	9.53	215.93	19.05	427.09

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Types of Stainless Steel 321 Pipes

Are Custom Sizes Available for Stainless Steel 321 Pipes?

Yes, we offer custom sizes for Stainless Steel 321 Pipes to meet your specific requirements. Our team at Ojas Pipes and Tubes is committed to providing tailored solutions for all your Piping & tubing needs. For more details, contact us at sales@ojaspipesandtubes.co.in.

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Stainless Steel 321 Pipes find extensive use in industries that require high-temperature resistance and exceptional corrosion performance. Common applications include components for aerospace engines, exhaust systems, tubes for furnaces and heat exchangers, chemical processing equipment, and piping systems in refineries. Thanks to their excellent weldability, they are often selected for welded pressure vessels, boiler tubes, and high-temperature ducting. In the food and pharmaceutical industries, these pipes are utilized for hygienic piping and process equipment. The titanium stabilization ensures a long service life, even in demanding environments.