ASME SB-677 is a material specification for seamless and welded pipe made from high-nickel-chromium stainless steel alloys, such as UNS N08904 (904L), UNS N08925, and UNS N08926. These alloys are suitable for use in generally corrosive environments.
ASME SB 677 UNS N08904 seamless pipe is suitable for high-temperature and high-pressure applications. These high-strength pipes feature a weldless design and are produced using an extrusion process. They offer a 20% increase in load-bearing capacity compared to SS 904L welded pipe. Furthermore, welded pipe is more affordable and requires less processing time. These pipes are manufactured by welding together sheet or strip using standard welding processes. 1.4539 grade stainless steel welded pipe may be lower in strength but can be manufactured in a variety of sizes and shapes.
GNEE is a renowned manufacturer and supplier of SS 904L grade stainless steel pipe. Our products are tested and screened before shipment. For more information or to inquire about our products or pricing, please contact us: Mail:es@gescosteel.com
Standards and Material Designations
ASTM B677: Standard Specification for Wrought Nickel and Nickel Alloy Seamless Pipe.
TP904L: Specifies the material grade (904L) and shape (tube/pipe).
UNS N08904: Unified numbering system designation for 904L stainless steel.
1.4539: European standard designation for this alloy.
ASME SB677 TP904L stainless steel pipe chemical composition
ASME SB677 TP904L seamless stainless steel pipe
Stainless Steel 904l Pipe Specification
| DIN 1.4539 SS Specification | Stainless Steel 904L, ASTM B673 Stainless Steel |
|---|---|
| ASTM B677 TP 904L SS Seamless Pipe Size | 4 to 219mm W. T.: 0.5 to 20mm |
| ASTM B673 TP 904L Stainless Steel Welded Pipe Size | 5.0 mm – 1219.2 mm |
| SS UNS N08904 EFW Pipe size | 5.0 mm – 1219.2 mm |
| 904L SS Pipe Swg & Bwg | 10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg. |
| 904L Steel Pipe Schedule | SCH5, SCH10, SCH10S, SCH20, SCH30, SCH40, SCH40S, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
| 904L Stainless Steel Swg & Bwg | 10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg. |
| Stainless Steel 904l Tube wall thickness | 0.020" –0.220", (special wall thicknesses available) |
| ASTM B677 SS 904L Length | Single Random, Double Random, Standard & Cut length Pipe & Tube |
| ASTM B673 SS 904L Finish | Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF |
| ASME SS 904L Form | Round, Hydraulic, 'U' bent or Hollow,LSAW, Boiler, Straight Pipe, Clad Pipe, Rectangular, Square Pipe Etc |
| Stainless Steel 904L Type | Welded, Seamless, ERW, EFW, Fabricated Pipe, 'U' bent or Hollow, Hydraulic, LSAW, Boiler, Straight Tube, Tube Coil, Round, Rectangular, Square Tube etc |
| ASTM B677 SS 904L End | Plain End, Beveled End, Treaded Pipe |
| ASME SB673 TP904L SS Application | Oil Pipe & Tube, Gas Pipe & Tube, Fluid Pipe & Tube, Boiler Pipe & Tube, Heat exchanger Tube |
ASME SB677 TP904L stainless steel Pipe Composition Range
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Cu |
| 904L | 0.020 | 2.00 | 1.00 | 0.045 | 0.035 | 19.0-23.0 | 4.0-5.0 | 23.0-28.0 | 1.0-2.0 |
ASME SB677 TP904L Alloy Pipe Mechanical Properties
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) | Brinell (HB) | ||||
| 904L | 490 | 220 | 35 | 70-90 typical | - |
| Rockwell Hardness value range is typical only; other values are specified limits. | |||||
ASME SB677 TP904L Nickel Alloy Pipe Typical physical Properties
| Grade | Density (kg/m3) |
Elastic Modulus (GPa) |
Mean Co-eff of Thermal Expansion (m/m/C) | Thermal Conductivity (W/m.K) |
Specific Heat 0-100C (J/kg.K) |
Elec Resistivity (n.m) |
|||
| 0-100C | 0-315C | 0-538C | At 20C | At 500C | |||||
| 904L | 8000 | 200 | 15 | - | - | 13 | - | 500 | 850 |
ASME SB677 TP904L Nickel Alloy Pipe Typical Application
Petrochemicals and Natural Gas: Process piping systems for offshore oil and gas platforms (especially those handling chloride-containing media); heat exchangers and piping in flue gas desulfurization systems; and handling acidic environments containing hydrogen sulfide and carbon dioxide.
Process Chemical Industries: Equipment for the manufacture, storage, and transportation of sulfuric acid (e.g., coolers, piping, pumps, and valves); equipment for the production of phosphoric acid and phosphate fertilizers; and production facilities for organic acids such as acetic and formic acids.
Environmental Protection and Water Treatment: Seawater cooling piping systems; landfill leachate treatment and high-chloride wastewater treatment systems.
Paper and Pharmaceutical Industries: Equipment and piping for handling corrosive chemicals.
If you have project requirements for 904L stainless steel pipe, please feel free to place an order. GNEE has a large inventory of popular products for you to choose from. Available in both seamless and welded configurations, contact our factory for detailed chemical composition and free samples. We offer competitive pricing and excellent service.
Packaged in waterproof paper and steel strapping, these products meet standard export seaworthy packaging requirements and are suitable for various shipping methods. Customized options are also available upon request.
