ISO 9001:2015 Certified · CRISIL Rated · PED Certified · Trusted Global Exporter
321H SS Pipe Fittings and Buttweld Fittings Exporter

Contact for best offers on Stainless Steel 321H Pipe Fittings ASTM A403 WP321H from Siddhagiri Metals and Tubes
Other Names: ASTM A403 WP321H, Stainless Steel Pipe Fittings, Stainless Steel Fittings, Stainless Steel Buttweld Fittings, ASTM A403, ASME SA403 Fittings
Material: SS 321H, AISI 321H, SUS 321H, INOX 321H, Stainless Steel 321H, Material 1.4878
Brand: Siddhagiri Metals and Tubes
Manufacturer: Siddhagiri Metals and Tubes
Rating: 3.8/5 based on 80 customer reviews

321H Stainless Steel Pipe Fittings Supplier • Stainless Steel Fittings • 321H Buttweld Fittings • ASTM A403 WP321H

Siddhagiri Metals and Tubes is an ISO 9001:2015 certified supplier of AISI 321H Pipe Fittings as per ASTM A403 WP321h specification. All forms of SS 321H Seamless and Welded Pipe Fittings available in stock.

A fitting is used in pipe systems to connect straight pipe or tubing sections, adapt to different sizes or shapes and for other purposes, such as regulating fluid flow. Pipe Fittings are used in a piping system to change direction or function, which is mechanically joined to the system. The simplest way to achieve this is to bend the pipe in the direction required, but this process will stretch and thin the outer wall of the pipe whilst thickening and wrinkling, the inner wall of the pipe. This results in flow resistance and accelerated wall erosion. 321H Pipe Fittings are manufactured and finished according to international standards ASTM A403 WP321H, ASME B16.9, ANSI B16.9, ASME B16.28, ANSI B16.28, ANSI B16.25, MSS-SP-43 & MSS SP-75. Our range of 321H Buttweld Fittings includes Elbows, Tees, Cross, Cap, Reducers, Collars, Bends in all sizes and forms.

Stainless Steel Elbow Fittings—Stainless Steel Pipe Elbows are installed between two lengths of pipe or tube allowing a change of direction by 180°, 90° or 45°. The ends are machined for Butt Welding when the two ends differ in size, it is called a Reducer or, Reducing Elbow. Pipe Fitting Elbows are available as 180° elbows, 90° elbows or 45° elbows in 1D, 1.5D, 2D, 3D, 5D, 6D, 8D, 10D radius as short and long radius elbows. All ASTM A403 / ASME SA403 elbows are mandrel formed to ensure consistency. 321H Stainless Steel Elbow Fittings and Stainless Steel Elbow Fittings is in ready stock with Siddhagiri Metals and Tubes.

Stainless Steel Return Bend Fittings— Bends are similar to elbows with different bending radiuses. ASTM A403 / ASME SA403 Bends are supplied as long radius return bends and short radius return bends. 321H Stainless Steel Return Bend and Stainless Steel Return Bend is in ready stock with Siddhagiri Metals and Tubes.

Stainless Steel Pipe Cross Fittings—Pipe Fitting Cross are used in several industries for providing the leak free and torque free sealing in any piping or tubing connection known for their close tolerances. 321H Stainless Steel Pipe Cross and Stainless Steel Pipe Cross is in ready stock with Siddhagiri Metals and Tubes.

Stainless Steel Cap Pipe Fittings—The function of a Pipe Cap is to block off the end of a line in an industrial piping system. Pipe Cap is fitted by placing the end cap over the open line and welding around the joint. 321H Stainless Steel End Cap and Stainless Steel End Cap is in ready stock with Siddhagiri Metals and Tubes.

Stainless Steel Tee Pipe Fittings—Pipe Fitting Tee is widely used in industrial piping systems to merge or divide fluids and do not require special tubing preparation before installation. Tees are available in different threading specifications and are engineered to close tolerances and precise dimensions. 321H Stainless Steel Tee Fittings and Stainless Steel Tee Fittings is in ready stock with Siddhagiri Metals and Tubes.

Stainless Steel Stub Ends Pipe Fittings—Stub Ends are installed in pairs and mated together with two Lap-Joint Flanges. The surface of the stub end has a phonographic serrated gasket surface which prevents leakage at the joint. Using stub ends allows sections of the line to be opened for cleaning, inspection or quick replacement, etc, without the need to re-weld. 321H Stainless Steel Stub End and Stainless Steel Stub End is in ready stock with Siddhagiri Metals and Tubes.

Stainless Steel Pipe Reducer Fittings— Reducers are supplied as Eccentric Reducer, Concentric Reducer and Conical Reducer or Bell Shaped Reducer. 321H Stainless Steel Pipe Reducer and Stainless Steel Pipe Reducer is in ready stock with Siddhagiri Metals and Tubes.

Stainless Steel Pipe Coupling— Couplings are used to merge two equal ends in a piping system. Couplings are classified as half-coupling and full-coupling. 321H Stainless Steel Pipe Couplings and Stainless Steel Pipe Couplings is in ready stock with Siddhagiri Metals and Tubes.

Stainless Steel Pipe Fittings manufactured by Siddhagiri Metals and Tubes are designed for high performance under extreme environments. Moreover, our Pipe Fittings have wall thickness designed with ample erosion and corrosion allowance. We stock a full range of 321H Pipe Fittings in sizes 1/8” NB to 24" NB in SCH5, SCH10, SCH40, SCH80, SCH160, SCH XS, SCH XXS. Siddhagiri Metals and Tubes have a huge inventory of buttweld fittings in various forms such as End Cap, Stub Ends, Pipe Nipple, Equal Tee, Unequal Tee, Concentric Reducer, Eccentric Reducer, Collar, Long Radius Elbow, Short Radius Elbow, Return Bend, Elbow, Coupling. All our products are tested under expert supervision and test documents such as Mill Test Certificates, EN 10204 3.1, Chemical Reports, Mechanical Reports, Destructive Test Report, Non-Destructive Test Reports, PMI Test Reports, Visual Inspection Reports, Third Party Inspection Reports, NABL Approved Lab Reports are provided. Pipe Fittings have a variety of applications in Oil, Gas, Filtration, Refrigeration, Refining, Petrochemical, and Offshore Industries. We have been exporting buttweld fittings in many countries such as Australia, Saudi Arabia, South Africa, Iraq, Iran, UAE, USA, Russia, Germany, Thailand, Uk, etc.

  • Pipe Fittings Specification: UNS S32109, EN 1.4878, DIN 1.4878, SS 2337, ASTM A403 WP321H
  • Dimenison Standards: ASME B16.9, ANSI B16.9, ASME B16.28, ANSI B16.28, ANSI B16.25, MSS-SP-43, MSS-SP-75
  • Thickness Range: 2.77mm to 59.64mm
  • Outside Diameter(OD): 2.77mm to 59.64mm
  • Type: Seamless Pipe Fittings, Welded Pipe Fittings
  • Forms: Stainless Steel Long Radius Elbow, Stainless Steel Short Radius Elbow, Stainless Steel Long Radius Return Bend, Stainless Steel Short Radius Return Bend, Stainless Steel Reducing Elbow, Stainless Steel End Cap, Stainless Steel Stub Ends, Stainless Steel Pipe Nipple, Stainless Steel Equal Tee, Stainless Steel Unequal Tee, Stainless Steel Pipe Cross, Stainless Steel Reducing Cross, Stainless Steel Cross, Stainless Steel Concentric Reducer, Stainless Steel Eccentric Reducer, Stainless Steel pipe Collar, Stainless Steel Pipe Coupling
  • Size Range: 1/8” NB to 24" NB in SCH 5, SCH10, SCH40, SCH80, SCH160, SCH XS, SCH XXS
  • Bending Radius: 1D, 1.5D, 2D, 3D, 5D, 6D, 8D, 10D
  • Origin: Indian Origin, European Origin, Japanese Origin
  • Testing and Documents: Mill Test Certificates, EN 10204 3.1, Chemical Reports, Mechanical Reports, Destructive Test Report, Non Destructive Test Reports, PMI Test Reports, Visual Inspection Reports, Third Party Inspection Reports, NABL Approved Lab Reports
  • Packing: Packed in Wooden Boxes, Bubble wraps, Steel Strips Bundled, or as per Customers Requests

321H Stainless Steel Fittings Sizes in Stock

Forms of Pipe Fttings Pipe Fitting Size Range Schedules of Butt weld fittings Dimension Standards
Seamless Pipe Fittings Welded Pipe Fittings
Stainless Steel Return Bends 1/8” NB to 8" NB SCH 5, SCH 5S, SCH 10, SCH 10S, SCH 20, SCH 30, SCH 40S, SCH 40, SCH STD, SCH 60, SCH 80s, SCH 100, SCH 120, SCH XS, SCH XXS, SCH 160, upto 50mm in case of Welded Fittings ASME B16.9, ANSI B16.9, ASME B16.28, ANSI B16.28, ANSI B16.25, MS SP 75
Stainless Steel Tees 1/8” NB to 24" NB Upto 42" NB
Stainless Steel Reducers 1/8” NB to 24" NB Upto 42" NB
Stainless Steel End Caps 1/8” NB to 24" NB Upto 42" NB
Stainless Steel Swage Nipple 2 1/16” to 30”
Stainless Steel Elbows — 45, 90 & 180 Degree 1/8” NB to 24" NB Upto 42" NB
Stainless Steel Cross 1/8” NB to 8" NB

Forms of ASTM A403 / ASME SA403 Fittings in Stock

In Stock Stainless Steel Long Radius Elbows Manufacturer

SS 321H Long Radius Pipe Elbows

ASTM A403 / ASME SA403 Fittings — 321HSS Long Radius Elbows up to 24" NB in smls and 42" NB in Welded Range

In Stock Stainless Steel Short Radius Elbows Manufacturer

SS 321H Short Radius Pipe Elbows

321HSS Short Radius Elbows As Per ASTM A403 / ASME SA403 Available up to 24" NB in smls and 42" NB in welded Range

In Stock Stainless Steel Long Radius Return Bends Manufacturer

SS 321H Long Radius Return Bends

321HSS Long Radius Return Bend Available up to 24" NB in smls and 42" NB in welded Range

In Stock Stainless Steel Short Radius Return Bends Manufacturer

SS 321H Short Radius Return Bends

321HSS Short Radius Return Bend Available up to 24" NB in smls and 42" NB in welded Range

In Stock Stainless Steel Reducing Elbows Pipe Fittings Manufacturer

SS 321H Reducing Elbow Pipe Fittings

321HSS Reducing Elbows Available in 1/8” NB to 24" NB Range As Per ASTM A403 / ASME SA403

In Stock Stainless Steel End Cap Pipe Fittings Manufacturer

SS 321H Pipe Caps

321HSS Pipe Caps Available up to 24" NB in smls and 42" NB in welded Range

In Stock Stainless Steel Stub Ends Pipe Fittings Manufacturer

SS 321H Stub Ends — Pipe Fittings

321HSS Pipe Fittings Stub Ends Available up to 24" NB in smls and 42" NB in welded Range

In Stock Stainless Steel Nipple Pipe Fitting Manufacturer

SS 321H Pipe Fitting Nipple

321HSS Nipple Available As Per ASTM A403 / ASME SA403 Standard

In Stock Stainless Steel Equal Tee Pipe Fitting Manufacturer

SS 321H Equal Tee

321HSS Equal Tee — Buttweld Fittings ASME SA 403

In Stock Stainless Steel Unequal Tee Pipe Fitting Manufacturer

SS 321H UnEqual Tee

321HSS Unequal Tee — Buttweld Fittings Manufacturer and Supplier

In Stock Stainless Steel Cross Pipe Fitting Manufacturer

SS 321H Pipe Fittings Cross

ASTM A403 WP321H Pipe Fittings 321HSS Cross Supplier

In Stock Stainless Steel Concentric and Eccentric Reducer Manufacturer

SS 321H Concentric, Eccentric Reducer

321HSS Concentric, Eccentric Reducer Buttweld Fittings in from SCH 5 to SCH XXS

In Stock Stainless Steel Collar Pipe Fittings Manufacturer

SS 321H Collar Pipe Fittings

321H Collar Pipe Fitting ASTM A403 / ASME SA403

In Stock Stainless Steel Coupling Pipe Fittings Manufacturer

SS 321H Coupling — Fittings

ASTM A403 WP321H — 321H Coupling Available up to 24" NB in smls and 42" NB in welded Range

  • Chemical Properties
  • Mechanical Properties
  • Physical Properties
  • C Mn P S Si Cr Ni Ti
    MIN 0.040 - - - - 17.000 9.000 -
    MAX 0.100 2.000 0.045 0.030 0.750 19.000 12.000 0.700
  • Yield Strength
    0.2% Proof
    (MPa)
    Tensile strength
    (MPa)
    Elongation
    (% in 50mm)
    Hardness
    (HRB)
    MIN 205 515 40.00  
    MAX       95
  • Density kg/dm³ 7.76
    Young's Modulus GPa 196
    Thermal Conductivity W/m•°C 11.9
    Heat Capacity J/kg•°C 472
    Electrical Resistivity µΩm 0.96

Properties of AISI 321H Stainless Steel

Type 321 Cold Forming

Type 321 is easliy cold formed due to its ductile nature.

Type 321 Hot Forming

Type 321 can be readily formed and drawn.

Type 321 Machining

Type 321 is less machineable than Type 410 Stainless Steel.

Type 321 Welding

Type 321 is easily weldable by all standard techniques. No post weld treatment is required.

Type 321 Heat Treatment

Type 321 is non-hardenable by heat treatment. 321 is annealed by heating it to 1750 – 2050 °F (954 – 1121°C), then water quench or air cool.

Services We Offer

Documentation

Documentation is a very important part of the products we supply, and we work continuously to enhance the efficiency of the document-handling process without compromising quality of the product. Documents provided along with the shipment include Certificate of Origin, Material Test Certificate as per EN 10204 3.1 and 10204 3.2, NACE MR10103 and NACE MR0175 certified Test Certificates.

Quality Assurance

Stainless Steel Buttweld Fittings are manufactured and controlled to international standards such as ASTM, ASME, BS, MSS, EN, DIN or WERKSTOFFE. Our products undergo stringent quality tests before they are dispatched.

Material Testing

PMI Testing, Ultrasonic Test, Mechanical Testing, Spectro Tests for Chemical Analysis of the grade, Flaring Test, IGC, etc. are some of the tests conducted at our facility. We welcome stage wise inspection from any of your representative or third party inspection agencies.

Packing and Delivery

The product is wrapped and packed in wooden crates or carton boxes. Our primary goal is to deliver quality products in time, no matter where the client is located.

Let Us Know What YOU Need

We Cherish All Your Requirements