Material Grade :
ASTM A403 WP304 Stainless Steel
Material Grade :
ASTM A403 WP304 Stainless Steel
Chromium Content :
18.0–20.0%
Nickel Content :
8.0–10.5%
Manufacturing Standard :
ASTM A403 / ASME SA403
SS 304 Buttweld Fittings are among the most widely specified stainless steel piping components for industrial process systems requiring exceptional corrosion resistance, mechanical durability, and fabrication versatility. Manufactured from premium austenitic stainless steel containing approximately 18% chromium and 8% nickel, these fittings deliver outstanding performance in demanding operating environments while maintaining structural integrity over extended service periods.
As industries increasingly prioritize operational reliability and lifecycle value, SS 304 Buttweld Fittings continue to be the preferred solution for connecting, redirecting, reducing, and terminating piping systems across chemical processing, food manufacturing, pharmaceuticals, water treatment, marine engineering, and infrastructure projects. Their excellent weldability and corrosion resistance make them suitable for both standard and moderately aggressive industrial applications.
Why Choose SS 304 Buttweld Fittings?
Selecting the appropriate piping components directly influences system efficiency, maintenance costs, and long-term operational performance. Stainless Steel 304 Pipe Fittings provide an ideal combination of corrosion resistance, mechanical strength, and cost-effectiveness, making them one of the most economical stainless steel grades available for industrial service.
Key Performance Benefits
These performance characteristics allow SS 304 fittings to operate reliably in environments involving moisture, steam, mild chemicals, and elevated process temperatures.
ASTM A403 WP304 Buttweld Fittings
Manufactured in accordance with ASTM A403 WP304 Buttweld Fittings specifications, these products comply with internationally recognized quality and dimensional standards. They are commonly produced to ASME B16.9, ASME B16.28, and MSS SP-43 requirements to ensure interchangeability, pressure integrity, and consistent installation across industrial piping systems.
Each fitting undergoes comprehensive quality assurance procedures, including dimensional verification, Positive Material Identification (PMI), hydrostatic testing, visual inspection, and material certification to ensure compliance with global engineering specifications.
Types of SS 304 Buttweld Fittings
A complete range of SS 304 Welded Pipe Fittings is available to accommodate diverse piping configurations and engineering requirements, including:
Every fitting is manufactured with precision machining and controlled tolerances to provide leak-free connections and long-term operational reliability.
Industrial Applications
Due to their excellent corrosion resistance and fabrication characteristics, SS 304 Buttweld Fittings are extensively utilized across numerous industrial sectors.
Chemical Processing
Suitable for transporting mild chemicals, solvents, and industrial fluids while maintaining corrosion resistance and process safety.
Food & Beverage Manufacturing
The hygienic surface finish and ease of cleaning make SS 304 fittings ideal for food processing plants, breweries, dairy facilities, and beverage production systems.
Pharmaceutical Industry
Widely specified for sterile process piping, clean-room utilities, and pharmaceutical manufacturing infrastructure.
Water Treatment Plants
Commonly installed in filtration systems, water distribution networks, and wastewater treatment facilities requiring corrosion-resistant piping components.
Construction & Infrastructure
Frequently used in commercial buildings, HVAC systems, fire protection networks, and architectural piping installations due to their durability and aesthetic appearance.
Why Engineers Specify SS 304 Buttweld Fittings
Engineers and procurement professionals consistently select SS 304 Butt Weld Elbows and associated fittings because they provide an excellent balance of performance, availability, and lifecycle economy. Their ability to withstand corrosion, simplify fabrication, and maintain mechanical stability reduces downtime while improving overall system reliability.
Whether installed in industrial processing plants or commercial infrastructure projects, SS 304 fittings deliver dependable service under a wide range of operating conditions.
Trusted Supplier of SS 304 Buttweld Fittings
As a reliable supplier of SS 304 Buttweld Fittings, we offer precision-engineered piping components manufactured to ASTM, ASME, and international quality standards. Our extensive inventory includes seamless and welded fittings available in multiple sizes, wall thicknesses, and configurations to meet the requirements of global industries.
From ASTM A403 WP304 Buttweld Fittings to precision-manufactured SS 304 Welded Pipe Fittings, our products are engineered to provide superior corrosion resistance, dimensional accuracy, and long-term operational performance for critical industrial piping systems.
| STANDARD | UNS | WNR. | AFNOR | EN | JIS | BS | GOST |
|---|---|---|---|---|---|---|---|
| SS 304 | S30400 | 1.4301 | Z7CN18‐09 | X5CrNi18-10 | SUS 304 | 304S31 | 08Х18Н10 |
| SS 304L | S30403 | 1.4306/1.4307 | Z3CN18‐10 | X2CrNi18-9 / X2CrNi19-11 | SUS 304L | 304S11 | 03Х18Н11 |
| SS 304H | S30409 | 1.4301 | - | - | - | - | - |
SS 304/304L/304H Elbow
Designed to provide smooth directional changes in piping systems, SS 304/304L/304H Elbows offer exceptional corrosion resistance, excellent weldability, and long-lasting durability. These buttweld fittings are widely used in chemical processing, and industrial fluid transportation.
SS 304/304L/304H Eccentric Reducer
It connect different pipe sizes without trapping air, SS 304 Eccentric Reducers ensure efficient flow control in horizontal pipelines. Their superior corrosion resistance and dimensional accuracy make them suitable for industrial processing.
SS 304/304L/304H Long Stub End
Manufactured for reliable lap joint flange assemblies, SS 304/304L/304H Long Stub Ends simplify pipeline maintenance and flange alignment. Their excellent corrosion resistance and precision construction make them ideal for pharmaceutical, food processing, marine, and process piping systems.
SS 304/304L/304H Cap
Providing a secure closure for pipeline ends, SS 304/304L/304H Pipe Caps protect systems from leakage, contamination, and pressure loss. Their durable stainless steel construction ensures dependable performance in oil & gas, chemical processing, and industrial applications.
SS 304/304L/304H Pipe Bend
Built to achieve gradual changes in pipeline direction, SS 304/304L/304H Pipe Bends reduce flow turbulence while maintaining structural strength. These fittings deliver outstanding corrosion resistance and reliable performance in refineries, and heavy industrial pipelines.
SS 304/304L/304H Tee
Used to create efficient branch connections, SS 304/304L/304H Tees distribute fluids evenly while maintaining pipeline integrity. Their high mechanical strength, corrosion resistance, and precise dimensions make them suitable for food processing, and water distribution systems.
SS 304 Concentric Reducer
It provide smooth transitions between different pipe diameters, SS 304/304L/304H Concentric Reducers maintain balanced flow and minimize pressure loss. Their precision engineering and corrosion resistance support reliable operation in vertical pipelines and industrial processing.
SS 304/304L/304H Short Stub End
Designed for compact lap joint flange connections, SS 304/304L/304H Short Stub Ends enable easy installation, alignment, and maintenance. Their excellent corrosion resistance and dimensional precision make them a preferred choice for process industries and sanitary piping applications.
SS 304/304L/304H Cross
Created to connect four pipeline sections from a single junction, SS 304/304L/304H Cross Fittings provide efficient multidirectional flow distribution. Their robust construction, corrosion resistance, and precise manufacturing ensure dependable performance across processing systems.
Material Grade :
ASTM A403 WP304 Stainless Steel
Chromium Content :
18.0–20.0%
Nickel Content :
8.0–10.5%
Manufacturing Standard :
ASTM A403 / ASME SA403
Dimensional Standards :
ASME B16.9, MSS SP-43, ASME B16.28
Pressure Compatibility :
SCH 5S to SCH XXS
Available Connection Types :
Butt Weld Seamless & Welded
Operating Temperature :
Up to 870°C (Continuous Service)
Corrosion Resistance :
Excellent against atmospheric and mild chemical environments
Surface Finish :
Pickled, Passivated, Matte, Polished
Applications :
Food Processing, Water Treatment, Chemical Plants, Pharmaceuticals
Chemical Composition of SS 304/304L/304H Seamless and Welded Pipe Fittings
| C | Mn | Si | P | S | Cr | Ni | N | |
|---|---|---|---|---|---|---|---|---|
| 304 | 0.07max | 2.0max | 0.75max | 0.045max | 0.03max | min: 18.0 max: 20.0 | min: 8.0 max: 10.5 | — |
| 304L | 0.03max | 2.0max | 0.75max | 0.045max | 0.03max | min: 18.0 max: 20.0 | min: 8.0 max: 12.0 | 0.10 max |
| 304H | min: 18.0 max:20.0 |
min: 8.0 max: 10.5 |
min: 0.04 max:0.10 |
0.75 max |
2.0 max |
0.045 max |
0.03 max |
0.10 max |
Mechanical Properties Of ASME SA403 SS WP304 / 304L/ 304H Buttweld Pipe Fittings
| Grade | Tensile Strength ksi (min) | Yield Strength 0.2% ksi (min) | Elongation % | Hardness (Brinell) MAX | Hardness (Rockwell B) MAX |
|---|---|---|---|---|---|
| 304 | 75 | 30 | 40 | 201 | 92 |
| 304L | 70 | 25 | 40 | 201 | 92 |
| 304H | 75 | 30 | 40 | 201 | 92 |
Physical Properties of ASTM A403 Stainless Steel 304/304L/304H Pipe Fittings
| Properties | Metric | Imperial |
|---|---|---|
| Density | 8.94 g/cm3 | 0.323 lb/in3 |
Our SS 304 Buttweld Fittings Supplier are used in a wide range of applications and various industries. Below are a few of them:
Application Industries
Aerospace Industry
Food Processing Industry
Pulp & Paper Indusry
Energy Industry
Pharmaceuticals Industry
Power Plant Industry
Chemical Industry
Oil and Gas Industry
Get clear answers to common queries about our steel products, services, and delivery processes.
SS 304 Buttweld Fittings are designed to connect, redirect, reduce, or terminate stainless steel piping systems. They are widely used in food processing, pharmaceuticals, water treatment, dairy plants, breweries, and chemical industries where corrosion resistance, hygiene, and long service life are essential.
SS 304 offers an excellent balance of corrosion resistance, mechanical strength, weldability, and affordability. It performs reliably in mildly corrosive environments, making it one of the most widely used stainless steel grades for industrial and commercial piping systems.
These fittings are commonly manufactured according to ASTM A403 WP304, ASME B16.9, ASME B16.28, and MSS SP-43 standards. They are also supplied with EN 10204 3.1 Material Test Certificates and undergo dimensional, hydrostatic, and PMI inspections.
Yes. SS 304 Buttweld Fittings are available in multiple pipe schedules, including SCH 5S through SCH XXS, enabling them to perform efficiently in both low-pressure utility lines and high-pressure industrial process piping.
Renowned for their exceptional corrosion resistance, mechanical robustness, and prolonged service life, these fittings are extensively employed across chemical processing facilities, food and beverage manufacturing plants, dairy industries, pharmaceutical production units, pulp and paper mills, petrochemical complexes, water treatment infrastructure, and precision engineering applications.