| Specifications | Astm, Asme, Astm, Asme, Astm, Jis, Din, Nfa |
|---|---|
| Thickness | 4.0mm, 100mm |
| Pipes Size | 1/8” Nb, 1/8” Nb, 24” Nb, 1/4” Od, 24” Od Sizes |
| Tubes Size | 1/2″ Od, 1/2″ Od, 8″ Od |
| Length: | Cut Length, Single Random, Double Random, Single Random, Double Random, Required Length, Fix Length |
| End | Plain End, Beveled End, Threaded, Plain End, Beveled End, Threaded |
Stainless Steel 904l Pipes Manufacturer in India
Sagar Steel Corporation is a reputable manufacturer of Stainless Steel 904L pipes that are manufactured to withstand the forces of high temperature and also in very corrosive conditions. These pipes are employed in processing chemical liquids, seawater and acid feedstock since they contain high levels of nickel, molybdenum and chromium. They are easily welded and contain low carbon content, and have a smooth interior finish, which reduces friction and increases flow. They are applied in such industries as oil and gas, desalination, chemical processing, power generation, and other industries which need long-term functioning. We are equally supplying super duplex seamless pipe that meets the other industrial requirements.
Stainless Steel 904L Pipes — Information Table
| Category | Details |
|---|---|
| Material designation | Stainless Steel 904L |
| UNS / EN / W.Nr. | UNS N08904 / EN 1.4539 / Werkstoff 1.4539 |
| Type | Super austenitic stainless steel (high Ni–Cr–Mo, Cu-added) |
| Key alloying intent | Designed for strong resistance to reducing acids (esp. sulfuric acid) and chloride environments |
| Typical chemical composition (wt%) | C ≤ 0.02, Mn ≤ 2.0, Si ≤ 1.0, P ≤ 0.045, S ≤ 0.035, Cr 19–23, Ni 23–28, Mo 4–5, Cu 1–2, N ≤ 0.10(typical industry ranges; confirm with MTC) |
| Common product forms | Seamless pipes, welded pipes (ERW/EFW), fabricated spools |
| Typical standards (pipes) | ASTM A312 (welded/seamless austenitic pipe), ASTM A269 (instrumentation tube), ASTM A213 (boiler/heat exchanger tube) (904L grade available under these specs depending on supplier scope) |
| Size range (typical supply) | NPS 1/8" to 24" (common), larger OD possible for welded/EFW |
| Schedule / thickness | Commonly SCH 10/40/80, also custom thickness as per project |
| Surface / ends | Pickled & passivated, bright annealed (tube), plain/bevelled/threaded as required |
| Density | ~8.0 g/cm³ |
| Melting range | ~1300–1390°C (approx.) |
| Thermal conductivity | ~12–15 W/m·K (room temp, approx.) |
| Coefficient of thermal expansion | ~15–16 µm/m·°C (20–100°C, approx.) |
| Electrical resistivity | ~0.8–0.9 µΩ·m (approx.) |
| Mechanical properties (annealed, typical) | Tensile: ~490–700 MPa; Yield (0.2%): ~220 MPa min (typ.); Elongation: ~35% min (typ.)(varies by standard & thickness) |
| Hardness (typical) | ~≤ 200 HB (annealed condition, typical) |
| Corrosion performance (high level) | Excellent vs sulfuric acid, good general corrosion; strong pitting/crevice resistance vs 316L in chlorides; good stress corrosion cracking resistance compared to common austenitics |
| Typical applications | Chemical processing, acid handling lines, phosphoric/sulfuric acid plants, heat exchangers, desalination, marine, pulp & paper, pollution control systems |
| Welding / fabrication | Weldable with standard austenitic practices; use matching filler metals (commonly 904L-type or suitable Ni-based depending on service); ensure cleanliness, correct heat input, and post-weld cleaning/passivation |
| Heat treatment | Typically supplied solution annealed; avoid prolonged exposure in sensitization range during fabrication |
| QA / documentation | Usually supplied with MTC (EN 10204 3.1/3.2), PMI on request, hydrotest/NDT per spec |
Our 904L stainless steel pipes are designed to comply with ASTM B677 and ASME SB677, and are familiar in B2B markets as a component of bulk procurement and large work applications. These pipes are available in seamless welded formats that can be customised to fit specific needs in terms of diameter, wall thickness and finish to correspond with the operational requirements of some procedures. They are most resistant to pitting, crevice and stress corrosion cracking, and hence they are durable in the most hostile conditions in the long term. These pipes are highly quality checked, their logistics are dependable and consistent in their sizes, and they are worthy solutions to the harsh industrial activities.
Type of Sub-products
904l Seamless Pipes 904l Seamless Pipes
Suitable for high-pressure corrosive fluid systems with enhanced strength and integrity.
904l Welded Pipes 904l Welded Pipes
Economical option for structural and process lines requiring corrosion protection.