ASTM A182 SS Socket Weld & Threaded Fittings Manufacturer and Exporter in India
Amardeep Steel manufactures and supplies Stainless Steel Forged Fittings across a full range of grades 304/304L, 321/321H, 317/ 317L, 446, 316Ti and more. Whatever the grade, size, or end-use requirement, we work with buyers directly to confirm the right specification before anything leaves our facility.
We have been supplying ASTM A182 forged fittings to the petrochemical, power, and marine sectors for over 25 years. Every order ships with Mill Test Certificates (MTC) as per EN 10204 3.1/3.2. PMI testing, ultrasonic testing, and hydrostatic testing are available on request. We are ISO 9001 certified.
SS Forged Fittings from Amardeep Steel are built for demanding service high-pressure lines, high-temperature environments, and systems where leakage simply is not an option. These fittings are a standard choice in chemical processing, oil and gas, marine, desalination, power generation, sugar, automotive, and aviation pipelines.
The corrosion resistance in stainless steel forged fittings comes from the nickel-chromium base. In 316 and 316L grades, molybdenum is added for stronger pitting resistance in chloride environments. Grade 321 uses titanium as a stabiliser to prevent sensitisation at elevated temperatures. We produce these fittings through hot forging and impression die forging both methods work the steel under pressure, tightening the grain structure and giving the finished fitting better mechanical strength than a cast equivalent at any pressure class.
Raw material is sourced from verified mills only. We do not substitute grades or cut corners on incoming inspection; the chemistry gets checked before production starts. Destructive and non-destructive testing runs throughout the process, not just at final inspection, so dimensional and structural issues get caught early.
Fittings are available across a broad size and schedule range, with custom dimensions on request. Packaging is done in-house wood cases, end caps, and moisture protection where needed so the product arrives in the same condition it left. Documentation, including MTC, test reports, and packing lists, ships with every consignment.
For pricing, availability, or a specific requirement, get in touch with our team and we will come back to you with a quote.
Stainless Steel Forged Fittings Price List
Stainless Steel Forged Fittings prices vary by grade (304/316/316L), pressure class (3000-9000 LB), size (1/8 inch to 4 inch), and connection type (socket weld vs. threaded). Grade 316L commands a premium over 304 due to molybdenum content. Contact us for a grade-specific price list most orders are quoted within 24 hours.
Key Advantages of SS Forged Fittings for High-Pressure Applications
- Good general corrosion resistance and high strength
- Good sulfide stress corrosion resistance
- Resistance to chloride pitting and crevice corrosion
- Higher resistance to chloride stress corrosion cracking
- Easy to weld and conform
Manufacturing Standards of Stainless Steel Forged Fittings
| ASTM A182 / A182M | Forged Fittings and valves and parts for high temperature service. Standard Specification for Wrought Austenitic Stainless Steel Forged Fittings |
|---|---|
| BS 21 | Threading. |
| BS 3799 | Specification for Steel pipe fittings, screwed and Socket-welding for the petroleum industry |
| ANSI B16.11 | Forged steel fittings socket-welding and threaded. Socket Welding and Threaded Forged Fittings |
| ANSI/ASME B1.20.1 | Pipe threads, general purpose (inch). |
| ISO 4144 | Stainless steel fittings threaded to ISO 7-1. |
| MSS SP-95 | Swage(d) Nipples and Bull Plugs |
Stock Availability of Stainless Steel Forged Fittings
| Preview | Product | ASTM | ASME |
|---|---|---|---|
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SS Forged Elbow | A182 Forged Elbow | SA182 Forged Elbow |
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SS Forged Tee | A182 Forged Tee | SA182 Forged Tee |
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SS Forged Cross | A182 Forged Cross | SA182 Forged Cross |
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SS Forged Coupling | A182 Forged Coupling | SA182 Forged Coupling |
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SS Forged Union | A182 Forged Union | SA182 Forged Union |
| - | SS Forged Reducer | A182 Forged Reducer | SA182 Forged Reducer |
| - | SS Forged Plug | A182 Forged Plug | SA182 Forged Plug |
| - | SS Forged Olet (Weldolet / Sockolet / Threadolet) | A182 Forged Olet | SA182 Forged Olet |
| - | SS Socket Weld Insert | A182 SW Insert | SA182 SW Insert |
Stainless Steel Forged Fittings Specification
| Specifications | ASTM A182 / ASME SA182 |
|---|---|
| Size Ranges | 1/8 inch - 4 inch (DN6~DN100) |
| Pressure Classes | 2000 LBS, 3000 LBS, 6000 LBS, 9000 LBS |
| Thread Types | NPT, BSP, BSPT Fitting |
| Dimension Standard | ASME B16.11, MSS SP-79, MSS SP-95, MSS SP-83, MSS SP-97, BS 3799 |
| Type of Connection | Socket Weld (SW) and Threaded (NPT / BSP / BSPT) |
SS Forged Fitting Chemical Composition
| Type | Mn | C | Cr | P | Si | S | Mo | Ni |
|---|---|---|---|---|---|---|---|---|
| 302 | 2.00 | 0.15 | 17.00/19.00 | 0.045 | 1.00 | 0.030 | - | 8.00/10.00 |
| 304* | 2.00 | 0.08 | 18.00/20.00 | 0.045 | 1.00 | 0.030 | - | 8.00/10.50 |
| 304L* | 2.00 | 0.03 | 18.00/20.00 | 0.045 | 1.00 | 0.030 | - | 8.00/12.00 |
| 309 | 2.00 | 0.20 | 22.00/24.00 | 0.045 | 1.00 | 0.030 | - | 12.00/15.00 |
| 309S | 2.00 | 0.08 | 22.00/24.00 | 0.045 | 1.00 | - | - | - |
| 310 | 2.00 | 0.25 | 24.00/26.00 | 0.045 | 1.5 | 0.030 | - | 19.00/22.00 |
| 310S | 2.00 | 0.08 | 24.00/26.00 | 0.045 | 1.5 | 0.030 | - | 19.00/22.00 |
| 316* | 2.00 | 0.08 | 16.00/18.00 | 0.045 | 1.00 | 0.030 | 2.00/3.00 | 10.00/14.00 |
| 316L* | 2.00 | 0.03 | 16.00/18.00 | 0.045 | 1.00 | 0.030 | 2.00/3.00 | 10.00/14.00 |
| 317 | 2.00 | 0.08 | 18.00/20.00 | 0.045 | 1.00 | 0.030 | 3.00/4.00 | 11.00/15.00 |
| 317L | 2.00 | 0.03 | 18.00/20.00 | 0.045 | 0.75 | 0.030 | 3.00/4.00 | 11.00/15.00 |
| 321 | 2.00 | 0.08 | 17.00/19.00 | 0.040 | 1.00 | 0.030 | 0.75/0.75 | 9.00/12.00 |
| 347 | 2.00 | 0.08 | 17.00/19.00 | 0.040 | 0.5/1.00 | 0.030 | 0.5/0.75 | 9.00/12.00 |
Mechanical Properties of SS Forged Pipe Fittings
The following mechanical properties are representative values per ASTM A182 for austenitic stainless steel forged fittings at room temperature.
| Grade | Yield Strength (MPa) | Tensile Strength (MPa) | Modulus of Elasticity (GPa) | Elongation (%) | Poisson's Ratio | Hardness (HRB) |
|---|---|---|---|---|---|---|
| SS 304 | 205 | 520-720 | 193 | 40-50 | 0.29 | 85-95 |
| SS 304L | 205 | 520-720 | 193 | 40-50 | 0.29 | 85-95 |
| SS 304H | 205 | 520-720 | 193 | 40-50 | 0.29 | 85-95 |
| SS 316 | 205 | 520-720 | 193 | 40-50 | 0.29 | 85-95 |
| SS 316L | 205 | 520-720 | 193 | 40-50 | 0.29 | 85-95 |
| SS 316Ti | 205 | 520-720 | 193 | 40-50 | 0.29 | 85-95 |
| SS 317 | 205 | 520-730 | 193 | 40-50 | 0.29 | 85-95 |
| SS 317L | 205 | 520-730 | 193 | 40-50 | 0.29 | 85-95 |
| SS 321 | 205 | 520-720 | 193 | 40-50 | 0.29 | 85-95 |
| SS 321H | 205 | 520-720 | 193 | 40-50 | 0.29 | 85-95 |
| SS 347 | 205 | 520-720 | 193 | 40-50 | 0.29 | 85-95 |
| SS 310 | 205-275 | 515-740 | 193 | 40-50 | 0.29 | 90-105 |
| SS 310S | 205-275 | 515-740 | 193 | 40-50 | 0.29 | 90-105 |
SS Forged Pipe Fittings Dimensions
| Fittings Types | 90 Degree Elbows, 45 Degree Elbows, Tees, Reducing Tees, Couplings and Unions |
|---|---|
| Sizes | 1/8 inch - 4 inch (DN6 - DN100) |
| SS Socket Weld Fittings Pressures | Available in Class 3000, 6000 and 9000 |
| ASTM A182 F304 Threaded Fittings Pressures | Available in Class 2000, 3000 and 6000 |
For full socket weld and threaded fittings dimension charts including bore diameter and socket depth per ASME B16.11, download our specification sheet or contact our technical team.
Socket Weld Pipe Fittings Size Chart
| Size (NPS) | OD (inches) | Socket Depth (inches) | Socket Diameter (inches) |
|---|---|---|---|
| 1/2 inch | 0.840 | 0.343 | 1.000 |
| 3/4 inch | 1.050 | 0.375 | 1.250 |
| 1 inch | 1.315 | 0.437 | 1.500 |
| 1-1/4 inch | 1.660 | 0.500 | 1.750 |
| 1-1/2 inch | 1.900 | 0.563 | 2.000 |
| 2 inch | 2.375 | 0.625 | 2.500 |
| 2-1/2 inch | 2.875 | 0.750 | 3.000 |
| 3 inch | 3.500 | 0.812 | 3.500 |
| 4 inch | 4.500 | 1.000 | 4.500 |
Stainless Steel Socket Weld Fittings Wall Thickness
| Description | Class 3000 | Class 6000 | Class 9000 |
|---|---|---|---|
| SW Elbows (45 Degree), SW Tees, SW Couplings, NPT Half-Couplings, Socket End Caps | 1/2 inch - 4 inch (SCH 80) | 1/2 inch - 2 inch (SCH 160) | 1/2 inch - 2 inch (XXS) |
| NPT 90 Degree Elbows, NPT Crosses | 1/2 inch - 4 inch (SCH 80) | 1/2 inch - 2 inch (SCH 160) | 1/2 inch - 2 inch (XXS) |
SS 316L Forged Fittings Equivalent Material (UNS S31603)
| Standard | SS 316L Forged Fittings (UNS S31603) |
|---|---|
| Werkstoff Nr. | 1.4404 / 1.4435 |
| UNS | S31603 |
| EN | X5CrNiMo17-12-2 / X3CrNiMo17-13-3 |
| AFNOR | Z7CND17-11-02 |
| JIS | SUS 316L |
| GOST | 03Ch17N14M3 / 03Ch17N14M2 |
| BS | 316S11 / 316S13 |
Threaded vs. Socket Weld Stainless Steel Forged Fittings - Key Differences
When specifying stainless steel forged fittings, the choice between threaded and socket weld connections depends on operating pressure, maintenance access, and installation environment.
| Property | Threaded Fittings | Socket Weld Fittings |
|---|---|---|
| Connection Type | Screw-threaded (NPT / BSP) | Welded socket (fillet weld) |
| Ease of Installation | Easy - no welding required | Requires certified welding |
| Leak Resistance | Moderate - can loosen over time | High - welded joints are permanent |
| Pressure Suitability | Class 2000, 3000, 6000 | Class 3000, 6000, 9000 |
| Size Range | 1/8 inch to 4 inch NB | 1/8 inch to 2 inch NB (Class 9000) |
| Maintenance | Easy to disassemble and replace | Requires cutting for removal |
| Corrosion Risk | Thread roots can trap corrosive media | Smooth bore, minimal crevice |
| Applications | Non-critical lines: water, air, low-pressure gas | High-pressure/high-temperature: oil, gas, steam |
| Cost | Lower - no welding labour | Higher - welding labour and inspection |
Stainless Steel Threaded Fittings Weight Chart
Indicative weights for stainless steel threaded forged fittings per ASTM A182. Actual weights may vary by manufacturer.
| Size (NPS) | Threaded Tee (kg) | Threaded Elbow (kg) | Threaded Cap (kg) | Threaded Union (kg) |
|---|---|---|---|---|
| 1/2 inch | 0.14 | 0.11 | 0.07 | 0.23 |
| 3/4 inch | 0.20 | 0.16 | 0.09 | 0.27 |
| 1 inch | 0.29 | 0.23 | 0.14 | 0.34 |
| 1-1/4 inch | 0.45 | 0.34 | 0.18 | 0.45 |
| 1-1/2 inch | 0.59 | 0.45 | 0.27 | 0.59 |
| 2 inch | 0.82 | 0.68 | 0.34 | 0.82 |
| 2-1/2 inch | 1.13 | 0.91 | 0.45 | 1.13 |
| 3 inch | 1.59 | 1.36 | 0.68 | 1.59 |
| 4 inch | 2.27 | 1.81 | 0.91 | 2.27 |
What are the Applications of ASTM A182 Stainless Steel Forged Fittings?
ASTM A182 Stainless Steel Forged Fittings are widely used in various industries such as petrochemicals, oil and gas, chemical processing, power generation, pharmaceuticals, and more. They are commonly used for connecting pipes and tubes in high-temperature and high-pressure applications and environments requiring corrosion resistance. These fittings suit various mediums, such as gas, oil, water and chemicals.
- Petrochemical and refinery pipelines (high-temperature / high-pressure service)
- Oil and gas upstream and midstream
- Pharmaceutical and food-grade processing (SS 316L preferred for cleanability)
- Desalination and water treatment plants
- Power generation and boiler systems
- Marine and offshore structures
- Pulp, paper, and sugar processing
Stainless Steel Forged Fittings Exporter
Amardeep Steel is a trusted exporter of high-quality Stainless Steel Forged Fittings, supplying clients worldwide with products that meet diverse industrial needs.
Mexico, Afghanistan, Italy, Switzerland, Czech Republic, Algeria, Angola, Brazil, Poland, Colombia, Slovakia, Trinidad & Tobago, Tunisia, Chile, Bahrain, Iran, Indonesia, Libya, Croatia, Austria, Norway, Estonia, Belarus, Philippines, China, Hungary, Iraq, Jordan, Bolivia, South Africa, Australia, Israel, Bhutan, Hong Kong, Germany, Kazakhstan, Spain, Macau, Pakistan, Sri Lanka, Lebanon, Namibia, Sweden, Qatar, Kuwait, Canada, Gambia, Greece, Ukraine, United Arab Emirates, Puerto Rico, Turkey, New Zealand, Oman, Netherlands, Venezuela, Finland, Argentina, United Kingdom, Yemen, Nigeria, Portugal, India, South Korea, Tibet, Malaysia, Peru, Russia, Denmark, Ghana, Singapore, Bulgaria, Morocco, Ecuador, Gabon, Costa Rica, Azerbaijan, United States, Taiwan, Belgium, Lithuania, Thailand, Bangladesh, Japan, Egypt, Saudi Arabia, Mongolia, Romania, France, Serbia, Ireland, Nepal, Vietnam, Kenya, Zimbabwe.
Get a Quote for Stainless Steel Forged Fittings
We supply ASTM A182 SS forged fittings ex-stock and to custom specifications. Grades available: 304, 304L, 316, 316L, 321, 317L, 347 and more. Request a quote with your size, grade, and quantity most enquiries are responded to within 24 hours.
FAQs
1. What are stainless steel pipe fittings?
Stainless steel pipe fittings are precision components used to connect, redirect, or branch piping systems. In forged fittings specifically, the body is shaped under high compressive force rather than being cast, resulting in a denser grain structure, higher strength, and superior resistance to pressure and vibration compared to cast alternatives.
2. What are ASTM A182 304 Stainless Steel Forged Fittings?
ASTM A182 304 Stainless Steel Forged Fittings are pipe fittings made from stainless steel grade 304. They come in various shapes and sizes, including elbows, tees, and couplings. They are widely used in industrial and commercial piping systems due to their strength, durability and resistance to corrosion.
3. What are the Advantages of Using ASTM A182 304 Stainless Steel Forged Fittings?
The advantages of using ASTM A182 304 Stainless Steel Forged Fittings include their high strength and durability, resistance to corrosion and high temperatures, and ability to withstand extreme pressure and stress. They also offer ease of installation, maintenance and long service life, making them a cost-effective option for many industrial and commercial applications.
4. What are stainless steel socket weld fittings?
Stainless steel socket weld fittings (SS SW fittings) are forged pipe fittings where the pipe end is inserted into a recessed socket and then fillet-welded. They are used in high-pressure, high-temperature lines and are available in Class 3000, 6000, and 9000 per ASME B16.11. Common sizes range from 1/2 inch to 4 inch in grades 304, 316, and 316L.
