Home > Forged Fittings > Stainless Steel 904L Forged Fittings
Harsh Metalloys, headquartered in Mumbai, India, is a trusted manufacturer and supplier of high-quality Stainless Steel 904L Forged Fittings. These fittings are engineered to provide outstanding strength, excellent corrosion resistance, and superior performance in highly aggressive environments. Available in a wide range of configurations—including elbows, tees, couplings, unions, and plugs—our 904L forged fittings comply with international standards such as ASTM A182. Designed for high-pressure piping systems, they are ideal for industries such as chemical processing, oil & gas, pharmaceuticals, and marine applications. Harsh Metalloys ensures precision, durability, and reliable service in every forged component delivered.
Stainless Steel 904L Forged Fittings are manufactured using a high-alloy austenitic stainless steel that includes 19–23% Chromium, 23–28% Nickel, 4–5% Molybdenum, 1–2% Copper, and low carbon. This composition offers exceptional resistance to sulfuric, phosphoric, and acetic acids, as well as to pitting and stress corrosion cracking. The fittings exhibit a tensile strength of approximately 71 ksi (490 MPa), yield strength around 31 ksi (220 MPa), and ~35% elongation. They maintain excellent formability, weldability, and impact resistance even under high pressure and elevated temperatures, making them ideal for severe operating environments.
| Standards | ASTM B649 / ASME SB649 |
| Specifications | ASME B16.11, MSS SP-79, 83, 95, 97, BS 3799 |
| Size Range | NPS 1/8″- 4″ (DN 6~100) |
| Rating Pressure | Threaded End – 2000/3000/6000 LBS. Socket weld End – 3000/6000/9000 LBS. |
| Type | Socket Weld, Screwed, BSP Threaded & NPT Threaded |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
| 904L | min. | – | – | – | – | – | 19.0 | 4.00 – 5.00 | 23.00 | – |
| max. | 0.20 | 2.00 | 1.00 | 0.045 | 0.035 | 23.0 | 28.00 | – | ||
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 904L | 490 | 220 | 35 | 75 | – |
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We ensures the highest standards for its stainless steel 904L forged fittings, rigorously testing them for durability, strength and corrosion resistance. Each fitting undergoes extensive quality control procedures and is certified to appropriate industry standards. Certifications such as material testing reports (MTRs) and third-party reviews ensure reliability and efficiency.
These 904L socket weld fittings create leak-proof, high-pressure connections that boast impressive corrosion resistance, making them perfect for chemical, power, and offshore piping systems.
With 904L threaded fittings, you get the convenience of easy assembly and disassembly. They offer high corrosion resistance and strength, making them suitable for low-pressure chemical, marine, and industrial pipelines.
The 904L 45° socket weld elbows are designed to change the flow direction with both strength and precision, ensuring they resist corrosion even in tight, high-pressure piping systems.
These 904L threaded tees facilitate three-way flow with robust, corrosion-resistant connections, and are commonly found in chemical, food processing, and marine applications.
The 904L threaded half couplings offer compact, corrosion-resistant connections for small bore pipes, making them ideal for challenging environments like refineries, marine systems, and chemical plants.
The 904L socket weld crosses are designed to distribute flow in four directions, featuring a strong, corrosion-resistant design that’s perfect for high-pressure industrial and chemical processing systems.
Stainless Steel 904L Forged Fittings are widely used in applications requiring robust mechanical strength and superior corrosion resistance. Typical industries include oil & gas refineries, chemical plants, pharmaceuticals, marine engineering, and desalination facilities. These fittings are ideal for connecting pipes in high-pressure and high-temperature systems such as heat exchangers, process lines, pressure vessels, and offshore platforms. Their ability to withstand aggressive media and harsh operating conditions ensures long-term performance and minimal maintenance. Additionally, their hygienic properties make them suitable for food and beverage processing applications where cleanliness and corrosion resistance are critical.
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