Stainless Steel 304H Welded Pipes

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Stainless Steel 304H Welded Pipes Manufacturer, Supplier and Exporter in Kolkata, India

Ojas Pipes and Tubes, a reputable manufacturer and supplier located in Kolkata, India, is dedicated to providing high-quality Stainless Steel 304H Welded Pipes to a variety of industries around the world. Renowned for their focus on quality, innovation, and customer satisfaction, Ojas delivers welded pipes that adhere to strict international standards. Stainless Steel 304H, a high-carbon variant of 304, is perfect for high-temperature and pressure applications. With cutting-edge manufacturing technology and thorough quality checks, Ojas guarantees exceptional weld integrity, precise dimensions, and durability, making them a trusted partner for clients in the power, petrochemical, and thermal processing sectors.

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Stainless Steel 304H Welded Pipes consist of 18–20% chromium, 8–11% nickel, and 0.04–0.10% carbon. The increased carbon content boosts high-temperature strength and creep resistance. These pipes generally showcase a tensile strength of 585 MPa, yield strength of 240 MPa, and an elongation of around 40%. The welded design ensures smooth finishes, tight tolerances, and robust structural integrity. SS 304H is known for its excellent oxidation resistance and weldability, making it a great choice for environments that experience thermal cycling and high stress, particularly in boiler systems, heat exchangers, and other high-temperature applications.

Stainless Steel 304H Welded Pipes Specification

Specifications : ASTM A312 / ASME SA312

Outside Diameter : 6.00 mm OD up to 914.4 mm OD, Sizes up to 24″ NB available Ex-stock, OD Size available Ex-stock

Thickness : 0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS

Size : 1/2″ NB – 24″ NB

Type : Welded

Form: Round Pipes, Square Pipes, Rectangular Pipes.

Length : Single Random, Double Random & Required Length

End : Plain End, Beveled End, Treaded

Equivalent Grades for Stainless Steel 304H Welded Pipes

Grade	UNS No	Old British		Euronorm		Swedish SS	Japanese JIS
		BS	En	No	Name
304H	S30409	304S51	–	1.4948	X6CrNi18-11	–	–

304H Stainless Steel Welded Pipes Chemical Composition

Grade		C	Mn	Si	P	S	Cr	Mo	Ni	N
304H	min.	0.04	–	–	–	–	18.0	–	8.0	–
304H	max.	0.10	2.0	0.75	0.045	0.030	20.0	–	10.5	–

SS 304H Welded Pipes Mechanical Properties

Grade	Tensile Strength (MPa) min	Yield Strength 0.2% Proof (MPa) min	Elongation (% in 50mm) min	Hardness
				Rockwell B (HR B) max	Brinell (HB) max
304H	515	205	40	92	201

If You Are Looking To Buy High Quality

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 304H Stainless Stee Welded Pipes from Ojas Pipes and Tubes?

Choosing Stainless Steel 304H Welded Pipes guarantees excellent corrosion resistance, high strength, and durability. Designed for diverse industrial applications, it delivers reliable performance in tough environments while maintaining competitive pricing for cost-effective solutions.

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Largest 304H Stainless Steel Welded Pipes Supplier in Kolkata, India

Ojas Pipes and Tubes, a leading manufacturer and supplier of Stainless Steel 304H Welded Pipes in Kolkata, India, offers a comprehensive range of high-quality pipes and tubing suitable for various industrial applications. Our extensive inventory and commitment to exceptional service make us a trusted choice for regional products.

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304H Stainless Steel Welded Pipe Sizes

NB Sizes	Sch 5	Sch 10	Sch 40	Sch 80	Sch 160
1/8″	✓	✓	✓	✓
1/4″	✓	✓	✓	✓
3/8″	✓	✓	✓	✓
1/2″	✓	✓	✓	✓	✓
3/4″	✓	✓	✓	✓	✓
1″	✓	✓	✓	✓	✓
1 1/4″	✓	✓	✓	✓	✓
1 1/2″	✓	✓	✓	✓	✓
2″	✓	✓	✓	✓	✓
2 1/2″	✓	✓	✓	✓	✓
3″	✓	✓	✓	✓	✓
4″	✓	✓	✓	✓	✓
5″	✓	✓	✓	✓
6″	✓	✓	✓	✓

Physical Properties of SS 304H Welded Pipes

Grade	Density (kg/m3)	Elastic Modulus (GPa)	Mean Coefficient of Thermal Expansion (m/m/0C)			Thermal Conductivity (W/m.K)		Specific Heat 0-1000C (J/kg.K)	Electrical Resistivity (n.m)
			0-1000C	0-3150C	0-5380C	at 1000C	at 5000C
304H	8000	193	17.2	17.8	18.4	16.2	21.5	500	720

Types of 304H Stainless Steel Welded Pipes

Are Custom Sizes Available for 304H Stainless Steel Welded Pipes?

We offer custom sizes for Stainless Steel 304H Welded Pipes to meet your specific needs. Our dedicated team at Ojas Pipes and Tubes provides tailored solutions for all your piping and tubing requirements. For more information, contact us at sales@ojaspipesandtubes.co.in.

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304H Stainless Steel Welded Pipes Uses

Stainless Steel 304H Welded Pipes find extensive use in high-temperature industrial settings that demand superior strength and structural stability. They are commonly used in superheaters, boilers, heat exchangers, and pressure vessels within power generation facilities. Additionally, they are utilized in chemical processing plants, oil refineries, and petrochemical operations due to their resistance to oxidation and thermal fatigue. Furthermore, 304H welded pipes are ideal for structural frameworks and piping systems in high-heat areas, thanks to their outstanding weldability and performance.