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

Samay Steel and Engineering Co. is a distinguished manufacturer, stockist, and exporter of Stainless Steel 321 / 321H Pipe Fittings, known for their superior performance in high-temperature and high-stress environments. Stainless Steel 321 is a titanium-stabilized austenitic stainless steel that offers excellent resistance to intergranular corrosion, making it ideal for applications involving continuous exposure to temperatures between 427°C and 816°C. The 321H variant has a higher carbon content, which enhances its strength and performance at elevated temperatures, especially in pressure vessel and heat exchanger systems.

The company supplies a wide variety of Stainless Steel 321 / 321H Pipe Fittings including elbows, tees, reducers, caps, stub ends, and crosses, all manufactured in compliance with global standards such as ASTM A403 and ASME B16.9. These fittings are widely used in industries such as petrochemical, aerospace, refinery, power generation, and thermal processing, where high temperature and corrosion resistance are critical. The titanium content in SS 321 prevents carbide precipitation during welding, ensuring long-lasting performance in welded structures.

Samay Steel and Engineering Co. maintains a strong inventory of Stainless Steel 321 / 321H Pipe Fittings, ready to serve both standard and custom requirements. The company’s manufacturing capabilities, combined with rigorous quality control procedures, ensure each fitting meets precise dimensional and mechanical standards. With an experienced team and advanced production facilities, they are capable of delivering bulk orders within committed timelines, ensuring reliability for critical industrial projects.

The company has established a significant presence in international markets by exporting Stainless Steel 321 / 321H Pipe Fittings to a wide range of countries. Their primary export destinations include Oman, Qatar, Saudi Arabia, UAE, and Kuwait in the Middle East; Spain and Germany in Europe; the USA and Canada in North America; along with several regions in Africa. Samay Steel and Engineering Co. is recognized globally for delivering consistent quality, timely service, and comprehensive technical support.

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 :-