C22 · Paper & Pulp
Stainless Steel Plates for the Paper and Paper Products Industry: 316L/304 Selection and List of 8 Parts
In the paper and paper products industry, we have organized eight parts that use stainless steel: commonly used 316L / 304 / S30408, with thickness ranging from 1.5–40 mm.
8 parts and material list
| Part / Component | Recommended grade | Specification / Thickness | Surface | Main Failure Modes | Reference Standards |
|---|---|---|---|---|---|
| Pressure Screen Drum Flange Ring | S30408 (Failure Case)/S30403/S31603 (Improvement) | Flange Ring 10–40mm | 2B/acid wash/homogenized | Welding sensitization → Cr₂₃C₆ precipitation → chromium depletion → Cl⁻/S²⁻/K⁺ corrosion + cyclic loading → fatigue fracture | GB/T 3280；JB/T 4708 |
| Screen Drum Wedge Mesh Filter/Filtration Core | 304/316L/904L | Gap 25μm–1.0mm | Electropolished/acid washed | Slurry wear+Cl⁻ pitting+blockage | GB/T 3280 |
| Steamer Shell/Insulation | 316L/317L/Dual phase steel composite plate | 6–30mm | 2B/acid washed/composite | High temperature 150–170℃+ alkaline/acidic steaming solution+S²⁻ → SCC and uniform corrosion | NB/T 47002；GB/T 3280 |
| Black Liquor Evaporator/Congested Black Liquid Pipeline | 304L/316L | 2–10mm | 2B/ Pickling | High solids black liquor + high temperature + alkali → Alkali stress corrosion cracking | GB/T 3280；GB/T 4334 |
| Pulp box wet end piping / spray nozzles | 316L | 1.5–5mm | 2B/ Pickling | White water Cl⁻+ fiber wear + shutdown corrosion | GB/T 3280 |
| Dresser rolls surface / coating | 2205/316L | Roll surface 10–40mm | 2B/ Working face / vulcanizing | High-line tension + fiber wear + white water corrosion | ASTM A240；GB/T 3280 |
| Cylinder/roll guide/groove coating | 304/316L | 2–10mm | Mirror/2B | High temperature 120-160℃ + humidity + paper web friction | GB/T 3280 |
| Oxylignin Spraying Tank | 316L/lean duplex | 6–20mm | 2B/Dissolving Acid Wash | High Temperature 90–110℃ + Alkaline + Oxygen → SCC and Oxidation Corrosion | GB/T 3280；ASTM A240 |
Table InsideConfiguration optionsSpecify usage conditions for easier material selection.
Material considerations
- Most common grades used in this industry are 316L (7), 304 (2), S30408 (1) —— numbers in parentheses indicate the number of parts involved, useful for quoting and material ordering.
- High-temperature section also accumulates thermal fatigue and oxidation. Use 310S / heat-resistant castings (4/8 hits).
- Welded parts watch for sensitization and chloride-ion stress corrosion cracking (SCC) (4/8 hits).
- Thickness range 1.5–40 mm: thin plates are mostly formed parts (consider bending rebound and deep drawing cracking), thick plates are mostly welded structures (consider heat input and sensitization).
Common issues
What stainless steel is used most in the paper and paper products industry?
Total sheets: 316L (7), 304 (2), S30408 (1).
Which part is prone to problems?
Typical failure: "Screen drum flange ring" - sensitization of welds → Cr₂₃C₆ precipitation → chromium deficiency → Cl⁻/S²⁻/K⁺ corrosion + cyclic loading → fatigue fracture. Recommended grades S30408 (failure case)/S30403/S31603 (improvement), size 10–40mm flange ring. For this condition, specify medium concentration, temperature, and cleaning method in the design phase.
What thickness should I select?
Thickness range in the list is 1.5–40 mm. For thin sections, consider bending and surface finish; for thick sections, welding and structural strength. Values may vary by manufacturer for the same location, review your drawing or operating conditions.
Related Materials and Adjacent Industries
Applications8
Thickness1.5–40mm