C22 · Paper & Pulp
Stainless Steel Sheets for the Paper and Paper Products Industry: 316L/304 Selection and 8 Part Lists
In the Paper and Paper Products Industry, we have organized 8 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/Anodizing/Dissolution | Welding Sensitization → Cr₂₃C₆ Precipitation → Chromium Depletion → Cl⁻/S²⁻/K⁺ Corrosion + Cyclic Loading → Corrosive Fatigue Fracture | GB/T 3280；JB/T 4708 |
| Screen Drum Wedge Mesh/Filtration Core | 304/316L/904L | Gap 25μm–1.0mm | Electrolytic Polishing/Acid Washing | Slurry Wear+Cl⁻ Pitting+Blockage | GB/T 3280 |
| Steaming Vessel Shell/Insulation | 316L/317L/Bi-metallic Composite Plate | 6–30mm | 2B/Anodizing/Dissolution | High Temperature 150–170℃+ Alkaline/Acidic Steaming Liquids+S²⁻ → SCC and Uniform Corrosion | NB/T 47002；GB/T 3280 |
| Black Liquid Evaporator/Heavy Black Liquid Pipeline | 304L/316L | 2–10mm | 2B/ Pickling | High Concentration Black Liquor + High Temperature + Alkali → Alkali Stress Corrosion Cracking | GB/T 3280；GB/T 4334 |
| Droop Box Wet End Piping / Spraying Nozzle | 316L | 1.5–5mm | 2B/ Pickling | White Water Cl⁻ + Fiber Wear + Shutdown Corrosion | GB/T 3280 |
| Press Rolls Surface / Coating | 2205/316L | Surface 10–40mm | Processing Surface / Rubber-Coated | High-line tension + fiber wear + white water corrosion | ASTM A240；GB/T 3280 |
| Cylinder/roll guard/guides | 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/ Acid Wash | High Temperature 90–110℃ + Alkaline + Oxygen → SCC and Oxidation Corrosion | GB/T 3280；ASTM A240 |
Table InsideConfiguration options. Same parts can be 304, 316L, or 2205 depending on the medium, temperature, and welding method — explain usage conditions instead of specifying grades for convenience.
Material Selection Tips
- Most common grades 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).
- Watch for sensitization and chloride-ion stress-corrosion cracking (SCC) in weldments (4/8 hits).
- Thickness range 1.5–40 mm: Thin plates are typically formed parts (consider bending rebound and deep drawing cracks), 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 case: "Screen drum flange ring" - sensitization of welds → Cr₂₃C₆ precipitation → chromium deficiency → Cl⁻/S²⁻/K⁺ corrosion + cyclic loading → fatigue fracture. Recommended grades S30408 (failure example)/S30403/S31603 (improvement), size 10–40mm flange ring. For this condition, it's recommended to clearly specify the 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