Stainless Steel 321 / 321h Pipe & Tube Manufacturer, Supplier, and Stockists in India

Samay Steel and Engineering Co. is a well-established manufacturer, reliable stockist, and global exporter of premium-quality Stainless Steel 321 / 321H Pipe & Tube, serving industries that demand high-performance piping solutions. The company has built a solid reputation for supplying corrosion-resistant and heat-stable stainless steel products that comply with stringent international standards. Their SS 321 and 321H pipes and tubes are known for excellent performance in high-temperature environments and are tailored to meet the critical demands of industries across the globe.

Stainless Steel 321 / 321H Pipe & Tube is an austenitic stainless steel stabilized with titanium, offering excellent resistance to intergranular corrosion after exposure to high temperatures. Grade 321 is ideal for continuous service in the 900–1500°F (480–820°C) range, while 321H is a high-carbon version that delivers improved high-temperature strength and creep resistance. These characteristics make them suitable for use in heat exchangers, furnace components, aircraft exhaust systems, and petrochemical processing equipment.

Samay Steel and Engineering Co. exports Stainless Steel 321 / 321H Pipe & Tube to several global destinations, including Oman, Qatar, Saudi Arabia, UAE, Kuwait, Spain, Germany, the USA, Canada, and numerous countries across Africa. The company adheres to internationally recognized standards such as ASTM A312 and ASTM A213, offering a comprehensive product range that includes seamless, welded, and ERW pipe and tube variants. Their global supply chain ensures timely delivery, custom packaging, and reliable customer service for clients worldwide.

With a wide stock inventory and robust production capabilities, Samay Steel offers Stainless Steel 321 / 321H Pipe & Tube in various sizes, thicknesses, and surface finishes. The company supports customized requirements by providing round, square, and rectangular forms along with U-tubes and hydraulic tubing. All products undergo strict quality checks, including dimensional inspection, surface finish evaluation, and third-party testing if required, ensuring full compliance with client specifications.

Stainless Steel 321 / 321h Pipe & TubeP Specifications

Specification	Details
Material Grades	Stainless Steel 321 / 321H
Standards	ASTM A312, ASTM A213, ASTM A269, ASTM A249, ASTM A358
Type	Seamless, Welded, ERW, Fabricated
Form	Round, Square, Rectangular, U Tube, Hydraulic
Outer Diameter	6.00 mm – 914.4 mm
Wall Thickness	0.5 mm – 20 mm
Length	Single Random, Double Random, Cut-to-Length
Surface Finish	Annealed & Pickled, Bright Annealed, Polished
End Types	Plain End, Beveled End, Threaded
Manufacturing Process	Cold Drawn, Hot Rolled, Welded
Application Industries	Heat Exchangers, Furnace Components, Petrochemical, Power Plants, Aerospace
Certifications	EN 10204 3.1 / 3.2, ISO 9001, NACE MR0175, PED

With a vast stockholding capacity and advanced production infrastructure, Samay Steel and Engineering Co. is well-positioned to meet urgent delivery needs and large-volume demands. Their technical expertise, commitment to international quality standards, and customer-centric approach have earned them a loyal client base in both established and emerging markets.

As the demand for high-performance stainless steel materials continues to grow globally, Samay Steel and Engineering Co. remains a trusted partner for Stainless Steel 317L Pipe & Tube solutions. Their dedication to product excellence and comprehensive service makes them a preferred choice for industries requiring reliable and corrosion-resistant piping materials.

Chemical Composition of Stainless Steel 321 / 321h Pipe & Tube

Element	SS 321 (%)	SS 321H (%)
Carbon (C)	≤ 0.08	0.04 – 0.10
Manganese (Mn)	≤ 2.00	≤ 2.00
Phosphorus (P)	≤ 0.045	≤ 0.045
Sulfur (S)	≤ 0.030	≤ 0.030
Silicon (Si)	≤ 1.00	≤ 1.00
Chromium (Cr)	17.0 – 19.0	17.0 – 19.0
Nickel (Ni)	9.0 – 12.0	9.0 – 12.0
Titanium (Ti)	≥ 5×C (min 0.20%)	≥ 5×C (min 0.20%)
Iron (Fe)	Balance	Balance

Mechanical Properties of Stainless Steel 321 / 321h Pipe & Tube

Property	SS 321	SS 321H
Tensile Strength (MPa)	≥ 515	≥ 515
Yield Strength 0.2% (MPa)	≥ 205	≥ 205
Elongation (% in 50mm)	≥ 35	≥ 35
Hardness (Brinell HB max)	≤ 217	≤ 217
Modulus of Elasticity	~193 GPa	~193 GPa
Density	7.90 g/cm³	7.90 g/cm³
Melting Point	1398 – 1446 °C	1398 – 1446 °C
Creep Resistance	Good	Improved (due to higher carbon)

Types of Pipes and Tubes

Cities we supply Pipes & Tubes in India :-

Countries we export Pipes & Tubes worldwide :-