Manufacturer, Supplier & Exporter of Stainless Steel 316Ti Spool

Stainless Steel 316Ti Spool is a high-performance piping spool fabricated from titanium-stabilized austenitic stainless steel, making it exceptionally resistant to high-temperature oxidation, sensitization, and corrosion. The addition of titanium enhances the material’s structural stability and prevents carbide precipitation during welding, which allows these spools to function reliably in elevated-temperature and corrosive service environments. As a result, SS 316Ti spools are widely used in industries where conventional 316/316L cannot perform efficiently in continuous high-heat conditions. Applications include chemical processing units, petrochemical refineries, thermal power plants, heat exchanger pipelines, and pharmaceutical fluid transfer systems..

Riddhi Siddhi Impex is a well-established manufacturer, exporter, and domestic supplier of Stainless Steel 316Ti Spools in India. With years of expertise in stainless steel fabrication and piping assemblies, the company offers precision-engineered pipe spools built to meet demanding industrial standards. Their manufacturing facility is equipped with advanced welding machines, CNC bending systems, polishing units, and inspection tools, enabling them to deliver high-accuracy spools with excellent strength and dimensional stability. Each 316Ti spool is produced according to ASTM, ASME, and international quality norms, ensuring reliable performance in extreme applications.

One of the core strengths of Riddhi Siddhi Impex is its ability to design and manufacture custom Stainless Steel 316Ti Spools according to client specifications. Whether industries require specific diameters, wall thicknesses, lengths, flanged ends, bevel ends, welded fittings, or complete fabricated spool assemblies, the company offers full customization. Their engineering team works closely with customers to evaluate pressure ratings, temperature requirements, fluid characteristics, and installation conditions, ensuring that the 316Ti spools are optimized for safety, long life, and operational efficiency. This customization capability makes them a preferred choice for EPC contractors, industrial fabricators, and project consultants...

Quality assurance is a top priority for Riddhi Siddhi Impex. Each Stainless Steel 316Ti Spool undergoes multiple inspection stages, including dimensional verification, visual examination, hardness testing, PMI (Positive Material Identification), weld integrity testing, and hydrostatic pressure testing (if required). These procedures ensure that every spool meets exact material and performance standards before dispatch. Additionally, the company provides Material Test Certificates (MTCs) that comply with EN 10204 standards, offering complete transparency and material traceability. Such strict quality control ensures that industries receive durable, leak-proof, and reliable SS 316Ti spools built for heavy-duty applications..

Stainless Steel 316Ti Spools offer exceptional advantages due to the titanium stabilization, which prevents intergranular corrosion and enhances heat resistance. This makes them ideal for high-temperature steam lines, heater tubes, furnace systems, and chemical reaction vessels where elevated temperatures are continuous. Industries such as oil & gas, paper & pulp, fertilizers, food processing, pharmaceuticals, and desalination plants rely on 316Ti spools because of their excellent resistance to chlorides, acids, and abrasive chemicals. Their superior mechanical strength and durability allow them to maintain structural integrity even under vibration, pressure fluctuations, and thermal stress..

Stainless Steel 316Ti Spool

Specification

Product Name	Stainless Steel 316Ti Spool
Manufacturer / Supplier	Riddhi Siddhi Impex
Material Grade	Stainless Steel 316Ti (Titanium Stabilized)
Standards	ASTM A312 / A213 / A269 / ASME SA312
Size Range	1/2” NB to 24” NB (Custom Fabrication Available)
Wall Thickness	Sch 10, 20, 40, 80, 160, XXS
Spool Type	Fabricated Spool, Welded Spool, Seamless Spool Assembly
End Connections	Flanged, Beveled End, Plain End, Threaded
Surface Finish	Mill Finish, Polished, Pickled & Passivated
Applications	Chemical Plants, High-Temperature Piping, Oil & Gas, Marine, Pharma, Heat Exchangers

Chemical Composition (SS 316Ti)

Element	Content (%)
Carbon (C)	0.08 Max
Manganese (Mn)	2.00 Max
Phosphorus (P)	0.045 Max
Sulfur (S)	0.03 Max
Silicon (Si)	0.75 Max
Chromium (Cr)	16.0 – 18.0
Nickel (Ni)	10.0 – 14.0
Molybdenum (Mo)	2.0 – 3.0
Titanium (Ti)	0.4 – 0.7

Mechanical Properties

Property	Value
Tensile Strength	≥ 485 MPa
Yield Strength	≥ 170 MPa
Elongation	≥ 40%
Hardness	≤ 95 HRB
Corrosion Resistance	Excellent in High-Temperature & Acidic Environments
Weldability	Superior – Titanium prevents sensitization

Dimension Chart (Nominal)

Nominal Pipe Size (NB)	Outside Diameter (mm)	Wall Thickness (mm)	Spool Length
1/2"	21.3	2.77	Custom Length
1"	33.4	3.38	Custom Length
2"	60.3	3.91	Custom Length
4"	114.3	6.02	Custom Length
6"	168.3	7.11	Custom Length
10"	273.1	9.27	Custom Length
16"	406.4	12.70	Custom Length

Equivalent Grades

Standard	Grade
ASTM	316Ti / UNS S31635
EN	1.4571
JIS	SUS 316Ti
BS	316S33
ISO	316Ti

Equivalent Standards

Standard	Description
ASTM A312	Seamless & Welded Austenitic Stainless Steel Pipes
ASTM A213	Austenitic Heat Exchanger & Boiler Tubes
ASME SA312	Pressure Piping Stainless Steel Specification
EN 10216-5	Seamless Stainless Steel Tubes for Pressure Service

Other Types of Stainless Steel Pipe Spools

Type	Description
Stainless Steel 304 Spool	General-purpose stainless-steel spool with good corrosion resistance
Stainless Steel 304L Spool	Low carbon content suitable for welding applications
Stainless Steel 316L Spool	Superior corrosion resistance and weldability for chemical use
Duplex Steel Spool	High-strength duplex alloy spool for aggressive industrial conditions
Super Duplex Spool	Extreme corrosion resistance for offshore and marine applications
Nickel Alloy Spool	High-temperature and acidic-service spool assemblies

Stainless Steel 316Ti Spools offer exceptional advantages due to the titanium stabilization, which prevents intergranular corrosion and enhances heat resistance. This makes them ideal for high-temperature steam lines, heater tubes, furnace systems, and chemical reaction vessels where elevated temperatures are continuous. Industries such as oil & gas, paper & pulp, fertilizers, food processing, pharmaceuticals, and desalination plants rely on 316Ti spools because of their excellent resistance to chlorides, acids, and abrasive chemicals. Their superior mechanical strength and durability allow them to maintain structural integrity even under vibration, pressure fluctuations, and thermal stress..

Frequently Asked Questions (FAQs)

Q1: What are the main uses of Stainless Steel 316Ti Spool?

A1: SS 316Ti Spools are used in high-temperature pipelines, chemical processing, oil & gas systems, marine equipment, heat exchangers, and pharmaceutical fluid lines.

Q2: Do you provide custom-fabricated 316Ti spools?

A2: Yes, we offer fully customized spools including diameter, length, thickness, fittings, flanges, and end connections as per project needs.

Q3: What makes 316Ti better than 316/316L?

A3: The titanium stabilization in 316Ti improves high-temperature strength, prevents sensitization, and enhances long-term corrosion resistance.

Q4: Do you supply Stainless Steel 316Ti Spools across India?

A4: Yes, we supply to Mumbai, Delhi, Bengaluru, Hyderabad, Chennai, Pune, Ahmedabad, Surat, Vadodara, Rajkot, and all major industrial cities.