Stainless Steel Fittings Manufacturer & Supplier

Stainless Steel Fittings Specifications

The table covers the standards, grades, and dimensional references governing the buttweld fittings we supply.

Types of Stainless Steel Fittings

Common stainless steel pipe fittings include elbows, tees, reducers, crosses, stub ends and couplings, each serving a specific piping connection or flow-direction requirement.

• Stainless Steel Elbow Fittings: change the direction of a pipe run by 45 or 90 degrees, with long-radius designs helping reduce pressure loss compared with short-radius elbows.
• Stainless Steel Tee Fittings: create branch connections from a main pipe run and are available as equal or reducing tees.
• Stainless Steel Reducer Fittings: connect pipes with different nominal sizes, using concentric designs for aligned runs and eccentric designs where offset geometry is required.
• Stainless Steel Cross Fittings: create four-way connections where one main run needs two branch connections at the same fitting point.
• Stainless Steel Stub Ends: provide a flanged pipe-end connection when used with a backing flange, allowing the flange to be rotated during assembly.
• Stainless Steel Couplings: join two pipe sections with the same or compatible nominal size where the applicable connection design calls for a coupling.
• Stainless Steel End Caps: close the end of a pipe or fitting run and can be used where a line termination or future extension point is required.

Stainless Steel Fittings Grades We Offer

Grade selection follows the fluid, operating temperature, pressure, corrosive environment and applicable piping specification, not cost alone.

• SS 304 Fittings: the general-purpose grade for water, air, steam and non-chloride lines, with 18 to 20% chromium and 8 to 10.5% nickel.
• SS 316 Fittings: carries 2 to 3% molybdenum, which lifts performance in chloride, marine and acidic media beyond what 304 manages.
• Other grades: we stock 202 on selected reducer items, with anything further confirmed against availability.

A 304 fitting on a chloride-bearing line pits at the weld heat-affected zone long before the pipe fails, which is why fitting grade has to match line grade.

Stainless Steel Fittings HSN Code

Stainless steel pipe fittings fall under HSN heading 7307, with the subheading determined by fitting construction.

“ Get a Free Sample of Stainless Steel Fittings. We are a reliable ASTM A403 SS 304 and SS 316 buttweld fittings stockist. Contact us if you are looking to buy stainless steel pipe fittings.”

Stainless Steel Fittings Price List

Stainless steel fittings prices vary with grade, size, schedule, quantity and prevailing stainless steel and nickel costs. We quote against current material costs rather than publishing a fixed rate card.

Applications of SS Fittings

Stainless steel fittings connect and redirect piping where corrosion resistance, cleanliness, temperature capability or material compatibility are important.

Benefits of Stainless Steel Fittings

Seven advantages follow from specifying stainless fittings correctly.

• Corrosion Resistance: the chromium oxide layer resists attack and reforms when disturbed.
• Strength and Durability: properties suited to piping loads, vibration, and thermal movement.
• Temperature Suitability: selected grades serve different conditions within their specified limits.
• Reliable Connections: correct selection and installation hold system integrity through service life.
• Maintenance Considerations: suitable materials reduce how often a line needs attention.
• Versatility: designs cover direction changes, branching, and size transitions in one system.
• Long-Term Value: long service life and recyclability can support lower lifecycle impact and replacement costs.

Quality Control and Material Traceability

Inspection and documentation decide whether a fitting can be proven to meet its purchase specification once it reaches the site. Grade verification comes first, since a mixed consignment cannot be identified by eye after unpacking. We run Positive Material Identification on all stainless material after receipt and again before it leaves the warehouse. Heat numbers and lot controls are recorded for traceability, and dimensional checks confirm bore, wall, and end preparation against the applicable standard.

We also stock the stainless steel pipes these fittings connect to, so grade and schedule match across the full line.

FAQs

What are stainless steel fittings used for?

Stainless steel fittings join pipes, change flow direction, create branch connections, and connect different pipe sizes. Chemical, pharmaceutical, food, power and water treatment plants use them wherever corrosion resistance is required.

What are the common types of stainless steel fittings?

Elbows, tees and reducers cover most process piping: elbows turn the line, tees branch it, reducers connect two bores. End caps, base plates, cover plates, T-points and anchor fasteners complete railing assemblies.

What is the difference between SS 304 and SS 316 fittings?

Molybdenum. That 2 to 3% addition, absent from SS 304, gives SS 316 markedly better resistance to chlorides, seawater and certain acids. SS 304 suits water, steam, air and general lines without chloride exposure.

What is ASTM A403 for stainless steel fittings?

ASTM A403 is the standard specification for wrought austenitic stainless steel piping fittings in pressure piping service. The WP prefix ties the fitting to ASME dimensional standards such as B16.9. Class letters after the grade show how the fitting was made and how far it was examined.

How do I select the correct stainless steel fitting?

Fix the grade based on the process medium and operating temperature, then match the nominal bore and schedule so the fitting mates without forcing. Confirm pressure class, specification and documentation before releasing the order.