AISI 904L Stainless Steel Plate and Sheet
- Model
- 904L
Item specifics
- Width
- 50-1500mm
- Delivery condition
- Cold Rolled / Hot Rolled
- Surface condition
- Black,Acid Picked,No. 1, 2B, Shot Blasted, Polishe
Review
Description
AISI 904L Stainless Steel Plate and Strips
904L Strips Introduce
904L stainless steel combines molybdenum and copper with iron for tremendously increased resistance to reducing acids like sulphuric acid. It stands up extremely well to chlorides in the environment for low pitting and crevice corrosion, as well as stress corrosion cracking.
904L Strips Applications
904L stainless steel is widely used in the chemical, pharmaceutical, oil and gas industries. Typical applications include tanks, valves, heat exchangers, flanges and manifolds. The addition of copper to the composition of 904L stainless steel aids its suitability for components such as tanks and other products used in handling sulphuric and phosphoric acid.
Quality Standard
ASTM A182 Standard Specification for Forged or Rolled Alloy-Steel Pipe Flanges, Forged Fittings, and Valves and Parts
EN 10088 part3 stainless steel
904L Stainless Grade Comparison
Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
BS | En | No | Name | ||||
904L | N08904 | 904S13 | – | 1.4539 | X1NiCrMoCuN25-20-5 | 2562 | – |
These comparisons are approximate only. The list is intended as a comparison of functionally similar materials, not as a schedule of contractual equivalents. If exact equivalents are needed original specifications must be consulted. | |||||||
904L Chemical Component
Steel Grade | C | Si | Mn | P | S | Cr | Ni | Mo | Cu | N |
904L | 0.02 max | 1.0 max | 2.0 max | 0.040 max | 0.030 max | 19.0-23.0 | 23.0-28.0 | 4.0-5.0 | 1.0-2.0 | 0.10 max |
Mechanical Property
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. | |||||
904L Plates Specification
Produce Size | Cold Rolled : 0.01-4mm |
Delivery Condition | Annealed,Normalized,Quenched and Tempered |
Surface | Black,Acid Picked,No. 1, 2B, Shot Blasted, Polished |
Loading Time | 10-30 days |
Trade Item | FOB CIF CFR DDU DDP |
Insepction | Visual, Chemical, Mechanical, UT, ET |
Report | 3.1 MTC, SGS, BV, TUV |
Heat Resistance
Grade 904L stainless steels offer good oxidation resistance. However, the structural stability of this grade collapses at high temperatures, particularly above 400°C.
Heat Treatment
Grade 904L stainless steels can be solution heat-treated at 1090 to 1175°C, following by rapid cooling. Thermal treatment is suitable for hardening these grades.
Corrosion Resistance
Where a level of resistance to pitting corrosion better than 316 is required 904L stainless steel may be suitable. With its high nickel content at 25% it offers improved resistance to chloride stress corrosion cracking compared to other austenitic grades such as 304.
Welding
904L stainless steel can be welded using common fusion and resistance methods. A more highly alloyed filler is recommended to give the optimum corrosion properties in the weld. We recommend you contact your welding consumables supplier who should provide you full assistance and information on welding 904L stainless steel.
