Stainless Steel 316Ti Tube Fittings | ASTM A182

ASTM A182 / UNS S31635 Grade | Titanium-Stabilized | Ready Stock from 1/16″ to 2
Aashish Metal & Alloys manufactures and exports SS 316Ti tube fittings engineered for high-temperature, high-corrosion service — trusted across oil & gas, petrochemical, power generation, and pharmaceutical projects worldwide.

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Stainless Steel 316Ti Tube Fittings Manufacturer, Supplier & Exporter

Aashish Metal & Alloys is a reliable manufacturer, stockist & exporter of SS 316Ti tube fittings, designed to meet industrial requirements where regular 316 stainless steel is not effective as it suffers degradation when exposed to heat and chloride. Stabilised with titanium to prevent the carbon from attacking the chromium, our 316Ti range is created to meet ASTM A182 / A276 and is equivalent to UNS S31635, DIN 1.4571 and JIS SUS316Ti specifications and is the most resistant to intergranular corrosion after welding. It is that single difference that makes 316Ti the preferred alloy for refineries, offshore platforms, chemical plants and pharmaceutical manufacturers where lines are hot, lines are frequently cycled and media is aggressive. From 1/16” to 2” we carry true ready stock with no made to order lead times for male connectors, female connectors, unions, elbows, tees, ferrule sets and bulkhead fittings all of which are delivered with mill test certificates and third party inspection can be ordered. Whether the order is a single sample union or a full export container, our engineering team verifies pressure rating, dimensions and certification before any item leaves the stockyard.

What Makes 316Ti Different From Standard 316 Stainless Steel?

Grade 316Ti is built on the same austenitic 18-10 chromium-nickel-molybdenum base as standard 316, with one critical addition: a controlled percentage of titanium. During welding or sustained exposure above 425°C, ordinary 316 stainless steel is vulnerable to carbide precipitation at the grain boundaries, which leads to intergranular corrosion. Titanium reacts preferentially with carbon, forming stable titanium carbides instead, so the chromium stays available to maintain the passive oxide layer that gives stainless steel its corrosion resistance.

In practical terms, this means a 316Ti tube fitting holds up better than a standard 316 fitting in heat-cycled lines, post-weld assemblies, and aggressive process media containing chlorides, sulphurous compounds, or other halides — exactly the conditions found in refineries, brewing lines, and pharmaceutical reactors.

Also known as: UNS S31635 Tube Fittings, DIN 1.4571 Tube Fittings, WNR 1.4571 Fittings, JIS SUS316Ti Fittings
Primary specification: ASTM A182 (forged fittings), ASTM A276 / A479 (bar stock), ASME SA182 / SA276 / SA479
Core advantage: superior resistance to intergranular and chloride-pitting corrosion versus Grade 316

Stainless Steel 316Ti Tube Fittings Specifications

Parameter	Details
Specifications	ASTM A182, A276, A479 / ASME SA182, SA276, SA479
Size Range	1/16″ to 2″ (Imperial); 2 mm to 50 mm (Metric)
Working Pressure	Up to 2000–6000 PSI (size dependent)
Thread Types	NPT – ASME B1.20.1; BSPP – ISO 228; BSPT – ISO 7 / BS 21; SAE – ASME B1.1
End Connections	NPT, BSP/BSPT, SAE/MS, weld ends, sanitary flanges, port connectors
Configurations	Straights, elbows, tees, crosses, caps, plugs, nuts, unions, ferrules
Working Temperature	Continuous service of the 316Ti alloy: up to ~816°C; practical fitting/seal temperature is set by the tubing and any elastomer, typically −40°C to ~250°C — confirmed against the assembly datasheet.
Equivalent Brands	Swagelok, Parker, Hoke, DK-Lok, Hamlet Letlok, Gyrolok
Documentation	Mill Test Certificates (EN 10204 3.1 / 3.2), NACE MR0175 / MR0103 on request

We Supplied a Comprehensive Range Of 316Ti Stainless Steel Tube Fittings

Buy 316Ti Stainless Steel Ferrule Fittings only From PED Approved Manufacturer

SS 316Ti Union Elbow

SS 316Ti Bulkhead Elbow

SS 316Ti Bulkhead Union

SS 316Ti Reducing Union

SS 316Ti Male Branch Tee

SS 316Ti Male Run Tee

SS 316Ti Male Elbow

SS 316Ti Bulkhead Male Connector

SS 316Ti Union Tee

SS 316Ti Reducing Union Tee

SS 316Ti Union Cross

SS 316Ti Male Connector

SS 316Ti Female Branch Tee

SS 316Ti Male Adapter

SS 316Ti Female Adapter

SS 316Ti Positionable Male Elbow

SS 316Ti Female Run Tee

SS 316Ti Female Elbow

SS 316Ti Bulkhead Female Connector

SS 316Ti Female Connector

SS 316Ti Front Ferrule

SS 316Ti Back Ferrule

SS 316Ti Tube End Closure

SS 316Ti Ferrule Nut

Stainless Steel 316Ti Tube Fittings Chemical Composition (% by Weight)

Grade	C	Mn	Si	P	S	Cr	Mo	Ni	N
316Ti	0.08 max	2.0 max	0.75 max	0.045 max	0.030 max	16.0–18.0	2.0–3.0	10.0–14.0	0.10 max

Stainless Steel 316Ti Tube Fittings Mechanical Properties

Density	Melting Point	Tensile Strength	Yield Strength (0.2% Offset)	Elongation
8.0 g/cm³	1399°C (2550°F)	75,000 psi / 515 MPa min	30,000 psi / 205 MPa min	35% min

Stainless Steel 316Ti Tube Fittings Equivalent International Grades

Standard	Designation
UNS	S31635
Werkstoff Nr. (EN)	1.4571
JIS	SUS 316Ti
BS	320S31
GOST	08Ch17N13M2T
AFNOR	Z6CNDT17-12
EN	X6CrNiMoTi17-12-2

Stainless Steel 316Ti Tube Fittings Pressure Rating Reference (NPT/ISO Sizes)

Pressure ratings vary by fitting gender, wall thickness, and tube OD. Representative figures for common sizes:

Size (in.)	Male Fitting (psig)	Female Fitting (psig)
1/16	11,000	6,700
1/8	10,000	6,500
1/4	8,000	6,600
3/8	7,800	5,300
1/2	7,700	4,900
3/4	7,300	4,600
1	5,300	4,400
1-1/2	5,000	4,600
2	3,900	3,900

Full pressure tables by exact thread designation and schedule are available on request — contact our engineering desk for the complete chart.

Stainless Steel 316 / 316L / 316Ti Tube Fittings Price List

Request the current 316Ti tube-fitting price list by size and configuration. Pricing reflects UNS S31635 bar stock, your chosen end-connection (NPT/BSP/SAE/weld) and order quantity — send your BOQ for a same-day quotation to meet the needs of diverse industries, including oil & gas, chemical processing, power generation, and petrochemicals.

To receive the latest price list, stock availability, and product specifications for SS 316/316L/316Ti Tube Fittings, please submit your enquiry with your requirements. Our extensive inventory includes a wide range of standard sizes and configurations, ensuring quick order fulfillment and reliable delivery.

With a focus on quality, customer satisfaction, and timely shipments, Aashish Metals offers Stainless Steel 316/316L/316Ti Tube Fittings at cost-effective prices for customers across India and international markets.

Applications & Industries

Where SS 316Ti Tube Fittings Are Used 316Ti’s resistance to heat-affected-zone corrosion makes it the preferred upgrade from standard 316 wherever lines are welded, cycled thermally, or exposed to chlorides. Core industries include:

Industry	Typical Use Case
Oil & Gas / Refineries	Instrumentation lines, sample systems, hydraulic control tubing on platforms and refinery units
Petrochemical & Chemical Processing	Corrosive media transfer lines, reactor instrumentation, acid/chloride service piping
Power Generation	High-temperature steam and gas turbine auxiliary instrumentation tubing
Pharmaceutical & Biotechnology	Sanitary process tubing where weld-zone corrosion resistance is critical for purity
Pulp & Paper	Bleaching and chemical recovery lines exposed to chlorides and sulphur compounds
Food & Beverage / Brewing	Hygienic process lines requiring chloride and acid resistance
Marine & Offshore	Saltwater-adjacent instrumentation and hydraulic tubing systems
Aerospace & High-Temperature Equipment	Collector rings, expansion joints, and gasket assemblies needing creep resistance to 816°C

Frequently Asked Questions on Nickel Alloy Pipes and Tubes

What are Nickel Alloy Pipes and Tubes used for?

Nickel Alloy Pipes and Tubes are commonly found in high pressure and high temperature, corrosive environments (high pressure) used in chemical processing, petrochemical plants, marine systems, heat exchangers, power generation and oil and gas refining. They can survive under extreme conditions hence they are suitable in demanding industrial uses.

Which grades of Nickel Alloy Pipes and Tubes are commonly supplied?

The grades that are most commonly used are the Nickel 200, Nickel 201, Alloy 400, Alloy 600, Alloy 625, Alloy 800 and Alloy 825 and Hastelloy grades. The grades have varying grades of corrosion resistance, heat resistance and mechanical strengths based on the service environment.

What is the temperature resistance of Nickel Alloy Pipes and Tubes?

Depending on the grade, nickel alloys have a temperature range of between -196C and 1100C. Alloys like Inconel 600 and 625 provide extraordinary high temperature stability thus they are applicable in furnaces, boilers and heat treatment apparatus.

Are Nickel Alloy Pipes corrosion-resistant in acidic environments?

Yes. Nickel alloys are very resistant to acid like sulfuric acid, hydrochloric acid, phosphoric acid and seawater. Monel 400, Hastelloy C276 and Inconel 625 are also popular where there is the concern of pitting, crevice corrosion and stress-corrosion cracking.

What manufacturing types are available for Nickel Alloy Pipes and Tubes?

Nickel Alloy Pipes and Tubes are in the form of seamless, welded, ERW and drawn-over-mandrel (DOM). High-pressure and high-temperature applications use seamless pipes and the general industrial use uses welded pipes.

How do I select the right Nickel Alloy grade for my application?

Selection depends on:

Temperature of operation
Type of corrosive media
Required pressure rating
The mechanical strength requirements.
Standards in the industry (ASTM, ASME, DIN, ISO).

An expert on materials will result in the selection of a high-temperature alloy such as Alloy 625, or an alkaline alloy such as Nickel 200/201.

Do Nickel Alloy Pipes come with material test certificates?

Yes, EN 10204 3.1 MTC, PMI findings, hardness testing, chemical composition testing, hydrostatic or pneumatic pressure testing and NACE MR0175/MR0103 compliance are provided when these are required by reputed manufacturers.

For More Information About Stainless Steel 316Ti Instrumentation Fittings please call +91-22-66362223 / 66394926 or send an email to export@aashishmetal.com

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