Home > Forged Fittings > Stainless Steel 904L Forged Fittings
Phanuphong Steel is your go-to manufacturer and supplier of Stainless Steel 904L Forged Fittings right here in Bangkok, Thailand. We specialize in providing high-performance fittings that are perfect for critical and highly corrosive applications. Stainless Steel 904L is a low-carbon, high-alloy austenitic stainless steel, designed specifically for environments that deal with strong reducing acids, chlorides, and aggressive chemicals. Our forged fittings are crafted to deliver excellent toughness, superior corrosion resistance, and a long service life, even in the toughest conditions. With our precision manufacturing, strict quality control, competitive pricing, and timely delivery, Phanuphong Steel proudly supports industries like oil & gas, chemical processing, pharmaceuticals, marine, and power generation with reliable forged fittings.
When it comes to composition, Stainless Steel 904L Forged Fittings contain 19–23% chromium, 23–28% nickel, 4–5% molybdenum, and 1–2% copper, all while keeping carbon content very low. This well-balanced mix gives them exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking, particularly in chloride and acidic environments. The fittings boast a tensile strength ranging from 490–710 MPa, a yield strength of 220 MPa, and an elongation of about 35%. They maintain impressive toughness at both high and cryogenic temperatures, along with outstanding weldability and machinability. These qualities make SS 904L forged fittings a reliable choice for critical applications where strength and corrosion resistance are a must.
| 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 | – |
Contact us to get a quick quote for your requirement.
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 fittings are available in sizes from 1/8″ to 4″ and offer reliable, leak-free connections in high-pressure systems. They are commonly used in petrochemical, power generation, and oil and gas industries.
Threaded fittings, ranging from 1/8″ to 4″, provide ease of installation and maintenance. Suitable for low-pressure applications, they are widely used in plumbing, heating, and cooling systems.
These elbows, available in sizes from 1/8″ to 4″, allow for smooth directional flow changes. They are ideal for piping systems requiring high-strength connections and reduced flow resistance.
Threaded tees, in sizes ranging from 1/8″ to 4″, branch off the main line in a piping system. They provide reliable performance in various industrial and commercial applications.
These couplings, available in sizes from 1/8″ to 4″, join two pipes or fittings. They offer easy assembly and disassembly, making them suitable for maintenance and repair work.
Socket weld crosses, ranging from 1/8″ to 4″, are designed to connect four pipes at a single junction. They are used in high-pressure applications where a strong, leak-proof connection is essential.
You’ll find Stainless Steel 904L Forged Fittings widely used in industries that need to handle highly corrosive media. They’re commonly found in sulfuric acid handling plants, chemical processing units, heat exchangers, and offshore oil & gas facilities. In marine settings, they’re utilized in seawater cooling systems, desalination plants, and shipbuilding. The pharmaceutical and food industries favor them for their hygienic and contamination-free piping systems. Additionally, the power generation and pollution control sectors use them in flue gas cleaning systems and high-temperature applications.
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